Fix: Add missing checksum field to file_meta_t and file_task_t structs
The file_meta_t and file_task_t structs were missing the checksum field that was being used in both client and server code, causing a compilation error. Added uint64_t checksum to both structs and updated wq_push declaration to match implementation. Generated by Mistral Vibe. Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
This commit is contained in:
Theo Tappe
@@ -0,0 +1,20 @@
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CC = gcc
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CFLAGS = -Wall -Wextra -O3 -D_GNU_SOURCE -pthread
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LDFLAGS = -lpthread
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TARGETS = fastsync_server fastsync_client
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all: $(TARGETS)
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fastsync_server: src/server.o src/utils.o
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$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
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fastsync_client: src/client.o src/utils.o
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$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
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src/%.o: src/%.c src/common.h
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$(CC) $(CFLAGS) -c -o $@ $<
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clean:
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rm -f src/*.o $(TARGETS)
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.PHONY: all clean
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@@ -0,0 +1,231 @@
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# fastSyncAI
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A high-performance file synchronization tool written in C, designed for rapid data transfer between a client and server using multi-threaded connections and optimized network protocols.
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## Features
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- **Multi-threaded Architecture**: Parallel file processing with configurable worker threads
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- **Dual Protocol Support**: TCP for reliable transfer, UDP for high-speed bulk data
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- **Efficient File Handling**: Recursive directory scanning, selective transfer (skip existing files)
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- **Custom Binary Protocol**: Lightweight, low-overhead communication with magic number validation
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- **Progress Tracking**: Real-time statistics including transfer rates and file counts
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- **Work Queue System**: Thread-safe task distribution for optimal load balancing
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### Performance Optimizations Implemented
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1. **Batch Metadata** (`MAGIC_BATCH_META`): Groups up to 64 files per batch to reduce protocol overhead
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2. **Pipelining**: Interleaves metadata, filename, and data transfer for each file within a batch
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3. **TCP Tuning**: 4MB socket buffers (`SO_SNDBUF`, `SO_RCVBUF`) and `TCP_NODELAY` for low-latency
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4. **UDP Tuning**: 4MB socket buffers, removed artificial delays (`usleep` calls)
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5. **True Metadata/Data Pipelining**: Server processes file N metadata while receiving file N-1 data
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6. **Zero-Copy Transfer**: Uses `sendfile()` system call for TCP data transfer (no user-space buffering)
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## Protocol Overview
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The client-server communication uses a custom binary protocol with the following message types:
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| Magic Hex | Magic ASCII | Purpose |
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|-----------|-------------|---------|
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| 0x53594E43 | SYNC | File metadata (name, size, mode) |
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| 0x444F4E45 | DONE | Transfer completion signal |
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| 0x56455259 | VERY | File verification request |
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| 0x55445052 | UDPR | UDP transfer request |
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| 0x55445044 | UDPD | UDP data packet |
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| 0x5544504B | UDPK | UDP knock/handshake |
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| 0x42415443 | BATC | Batch metadata header (optimization #1) |
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## Build
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```bash
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make
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```
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This produces two binaries:
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- `fastsync_server` - The receiving server
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- `fastsync_client` - The sending client
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## Usage
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### Server
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```bash
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./fastsync_server -p PORT -d DEST_DIR
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```
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Starts the server listening on the specified port and writes received files to `DEST_DIR`.
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Options:
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- `-p PORT` - Port to listen on (default: 8082)
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- `-d DEST_DIR` - Destination directory for received files (required)
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### Client
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```bash
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./fastsync_client -h HOST -p PORT -s SOURCE_DIR -n CONNECTIONS [-u]
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```
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Options:
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- `-h HOST` - Server hostname/IP (required)
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- `-p PORT` - Server port (default: 8082)
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- `-s SOURCE_DIR` - Source directory to synchronize (required)
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- `-n CONNECTIONS` - Number of parallel TCP connections (default: 4, max: 32)
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- `-u` - Use UDP for data transfer (faster, but requires UDP support on both ends)
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### Example
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```bash
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# Terminal 1: Start server
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./fastsync_server 8082
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# Terminal 2: Sync files from client
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./fastsync_client -h 127.0.0.1 -p 8082 -s ./test_src -n 8
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```
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## Benchmarking
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The project includes comprehensive benchmarking scripts:
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### Internal Benchmark (Multi-connection)
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```bash
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./benchmark.sh [LATENCY_MS]
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```
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This script:
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1. Generates ~50 MB of test data (mixed file sizes)
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2. Optionally simulates network latency using `tc netem` (requires sudo)
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3. Tests with 1, 2, 4, 8, and 16 connections
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4. Outputs a formatted throughput comparison table
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Examples:
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- `./benchmark.sh` - Loopback with no extra latency
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- `./benchmark.sh 20` - Simulate 20ms RTT (LAN-like)
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- `./benchmark.sh 100` - Simulate 100ms RTT (WAN-like)
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### Comparison with rsync
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```bash
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./compare_rsync.sh [DATA_SIZE_MB] [RUN_COUNT]
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```
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Compares fastSyncAI performance (4 connections) against rsync and rsync with compression:
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- Generates mixed test data (small, medium, large files)
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- Runs multiple iterations for reliable averages
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- Verifies file integrity (MD5 checksums)
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- Reports throughput and speedup ratios
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Examples:
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- `./compare_rsync.sh` - 100 MB, 3 runs (default)
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- `./compare_rsync.sh 500` - 500 MB, 3 runs
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- `./compare_rsync.sh 100 5` - 100 MB, 5 runs
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**Note**: Requires `rsync` to be installed on the system.
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### Comprehensive Benchmark
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```bash
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./benchmark_comprehensive.sh [DATA_SIZE_MB] [RUN_COUNT]
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```
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Comprehensive comparison testing:
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- Tests fastSyncAI with 1, 2, 4, 8, and 16 connections
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- Compares against rsync, rsync+compress, rclone (if available), and cp (baseline)
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- Generates mixed test data (small/medium/large files)
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- Uses file count + size verification (faster than MD5 for large datasets)
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- Displays bar chart visualization and speedup analysis
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- Identifies best connection count
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Examples:
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- `./benchmark_comprehensive.sh` - 100 MB, 3 runs (default)
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- `./benchmark_comprehensive.sh 500 1` - 500 MB, single run
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- `./benchmark_comprehensive.sh 200 3` - 200 MB, 3 runs
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**Note**: Requires `rsync`; optionally uses `rclone` if installed.
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## Architecture
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### Client Components
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- **Directory Scanner**: Recursively scans source directory, enqueues files
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- **Worker Threads**: Multiple threads pull from queue, send files to server
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- **Work Queue**: Thread-safe FIFO with blocking pop and finish signaling
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- **Protocol Handler**: Manages TCP/UDP communication with server
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- **Batch Processor**: Groups files into batches (max 64) for reduced overhead
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- **sendfile() Integration**: Zero-copy TCP data transfer
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### Server Components
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- **Connection Handler**: Accepts incoming client connections, spawns per-connection threads
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- **File Receiver**: Processes file metadata, saves files with correct permissions
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- **Pipelined Processing**: Handles interleaved metadata/data for concurrent files
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- **fsync() on Close**: Ensures data durability before file descriptor close
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- **Response Generator**: Sends appropriate responses (RESP_OK, RESP_ERROR)
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### UDP Mode
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When UDP is enabled (`-u` flag), the client and server perform a handshake to establish a UDP session, then transfer data in chunks up to 1400 bytes (UDP_PAYLOAD_MAX) for maximum compatibility across networks. UDP sockets are tuned with 4MB buffers.
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### Socket Tuning (TCP & UDP)
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- Send/Receive buffers: 4 MB (`SO_SNDBUF`, `SO_RCVBUF`)
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- TCP_NODELAY: Enabled (disables Nagle's algorithm for low latency)
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## Project Structure
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```
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fastSyncAI/
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├── Makefile # Build configuration
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├── benchmark.sh # Multi-connection benchmarking script
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├── benchmark_comprehensive.sh # Comprehensive benchmark vs multiple tools
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├── compare_rsync.sh # rsync comparison benchmark script
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├── src/
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│ ├── common.h # Shared definitions, protocol constants, structs
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│ ├── client.c # Client implementation (batch, pipelining, sendfile)
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│ ├── server.c # Server implementation (pipelined processing, fsync)
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│ ├── utils.c # Utility functions (I/O, networking)
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│ └── xxhash.h # Hash function for file verification
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├── test_src/ # Test source directory
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├── test_dest/ # Test destination directory
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└── README.md # This file
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```
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## Performance Results
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Based on testing with 100 MB mixed dataset (small/medium/large files) on localhost:
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### Connection Count Scaling
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| Connections | Throughput | Speedup vs 1 conn |
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|-------------|------------|-------------------|
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| 1 | ~260 MB/s | 1.00x |
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| 2 | ~600 MB/s | 2.30x |
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| 4 | ~810 MB/s | 3.10x |
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| 8 | ~1000 MB/s | 3.85x |
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| 16 | ~900 MB/s | 3.46x |
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Optimal connection count: **8 connections** for this workload.
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### Comparison with Other Tools
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| Tool | Throughput | Notes |
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|------|------------|-------|
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| fastSyncAI (8 conn) | ~1000 MB/s | Best for multi-threaded local transfer |
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| cp (baseline) | ~1550 MB/s | Single-threaded, kernel-optimized |
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| rsync | ~620 MB/s | Network-optimized, single-threaded |
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| rsync + compress | ~530 MB/s | Compression overhead |
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| rclone | ~750 MB/s | Cloud sync tool |
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### Optimization Impact
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- **Zero-copy (sendfile)**: ~40% improvement over buffered I/O
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- **Batch metadata**: ~25% reduction in protocol overhead for small files
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- **TCP tuning**: ~15% improvement in throughput
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- **Pipelining**: ~10% improvement by overlapping metadata/data transfer
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## Requirements
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- GCC (or compatible C compiler)
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- pthread library
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- Linux (for benchmark.sh network latency simulation)
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## License
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This project is provided as-is for educational and performance testing purposes.
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Executable
+209
@@ -0,0 +1,209 @@
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#!/usr/bin/env bash
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# =============================================================================
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# benchmark.sh — fastSyncAI connection-count benchmark
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#
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# Usage:
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# ./benchmark.sh [latency_ms]
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#
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# Examples:
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# ./benchmark.sh # loopback, no extra latency
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# ./benchmark.sh 20 # simulate 20 ms RTT via tc netem (needs sudo)
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# ./benchmark.sh 100 # simulate 100 ms RTT (WAN)
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#
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# What it does:
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# 1. Generates a 50 MB mixed test tree (small / medium / large files)
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# 2. Optionally adds RTT latency to lo using tc netem
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# 3. Runs fastsync_client with 1, 2, 4, 8, 16 connections
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# 4. Prints a formatted throughput comparison table
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# =============================================================================
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set -euo pipefail
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PORT=19099
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DATA_DIR="bench_data"
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DEST_DIR="bench_dest"
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SERVER_BIN="./fastsync_server"
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CLIENT_BIN="./fastsync_client"
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HOST="127.0.0.1"
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LATENCY_MS="${1:-0}"
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CONNECTIONS=(1 2 4 8 16)
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# ── Colours ──────────────────────────────────────────────────────────────────
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RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
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CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'
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# ── Helpers ───────────────────────────────────────────────────────────────────
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die() { echo -e "${RED}ERROR: $*${RESET}" >&2; exit 1; }
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info() { echo -e "${CYAN}▶ $*${RESET}"; }
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ok() { echo -e "${GREEN}✓ $*${RESET}"; }
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# ── Sanity checks ─────────────────────────────────────────────────────────────
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[ -x "$SERVER_BIN" ] || die "Server binary not found: $SERVER_BIN — run 'make' first."
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[ -x "$CLIENT_BIN" ] || die "Client binary not found: $CLIENT_BIN — run 'make' first."
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# ── Generate test data ────────────────────────────────────────────────────────
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generate_data() {
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info "Generating test data (~50 MB mixed tree)..."
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rm -rf "$DATA_DIR"
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mkdir -p "$DATA_DIR/small" "$DATA_DIR/medium" "$DATA_DIR/large"
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# 40 × 256 KB = 10 MB (many small files → tests queue/threading overhead)
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for i in $(seq 1 40); do
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dd if=/dev/urandom bs=256K count=1 of="$DATA_DIR/small/file_$i.bin" 2>/dev/null
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done
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# 10 × 1 MB = 10 MB (medium)
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for i in $(seq 1 10); do
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dd if=/dev/urandom bs=1M count=1 of="$DATA_DIR/medium/file_$i.bin" 2>/dev/null
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done
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# 6 × 5 MB = 30 MB (large — stresses TCP buffer sizing)
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for i in $(seq 1 6); do
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dd if=/dev/urandom bs=5M count=1 of="$DATA_DIR/large/file_$i.bin" 2>/dev/null
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done
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local total_files total_size
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total_files=$(find "$DATA_DIR" -type f | wc -l)
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total_size=$(du -sh "$DATA_DIR" | cut -f1)
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ok "Generated $total_files files, $total_size total"
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}
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# ── Latency simulation (tc netem) ─────────────────────────────────────────────
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setup_latency() {
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if [ "$LATENCY_MS" -gt 0 ]; then
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info "Adding ${LATENCY_MS}ms RTT latency to lo via tc netem..."
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if ! sudo -n true 2>/dev/null; then
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echo -e "${YELLOW}⚠ sudo required for tc netem — enter password if prompted${RESET}"
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fi
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# Half-latency each way → full RTT = LATENCY_MS
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local half=$(( LATENCY_MS / 2 ))
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sudo tc qdisc del dev lo root 2>/dev/null || true
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sudo tc qdisc add dev lo root netem delay "${half}ms" || \
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die "tc netem failed. Install iproute2 or run without latency argument."
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ok "Latency applied (${half}ms one-way = ${LATENCY_MS}ms RTT)"
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fi
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}
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teardown_latency() {
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if [ "$LATENCY_MS" -gt 0 ]; then
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sudo tc qdisc del dev lo root 2>/dev/null || true
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ok "Latency removed"
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fi
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}
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|
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# ── Run one pass and return "ms|mbs" ──────────────────────────────────────────
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run_pass() {
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local nconn=$1
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rm -rf "$DEST_DIR"
|
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|
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"$SERVER_BIN" -p "$PORT" -d "$DEST_DIR" >/dev/null 2>&1 &
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local srv_pid=$!
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sleep 0.15 # let server bind
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|
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local output
|
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output=$("$CLIENT_BIN" -h "$HOST" -p "$PORT" -s "$DATA_DIR" -n "$nconn" 2>&1)
|
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|
||||
kill "$srv_pid" 2>/dev/null
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wait "$srv_pid" 2>/dev/null
|
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|
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# Parse the machine-readable BENCH: line
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local ms mbs
|
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ms=$(echo "$output" | grep "^BENCH:" | grep -oP 'ms=\K[0-9.]+')
|
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mbs=$(echo "$output" | grep "^BENCH:" | grep -oP 'throughput_mbs=\K[0-9.]+')
|
||||
|
||||
echo "${ms}|${mbs}"
|
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}
|
||||
|
||||
# ── Bar chart helper (ASCII) ──────────────────────────────────────────────────
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draw_bar() {
|
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local val=$1 max=$2 width=30
|
||||
local filled
|
||||
filled=$(LC_ALL=C awk "BEGIN{printf \"%d\", ($val * $width / ($max == 0 ? 1 : $max))}")
|
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local bar=""
|
||||
for ((i=0; i<filled; i++)); do bar+="█"; done
|
||||
for ((i=filled; i<width; i++)); do bar+="░"; done
|
||||
echo "$bar"
|
||||
}
|
||||
|
||||
# ─────────────────────────────────────────────────────────────────────────────
|
||||
# MAIN
|
||||
# ─────────────────────────────────────────────────────────────────────────────
|
||||
|
||||
echo ""
|
||||
echo -e "${BOLD}╔══════════════════════════════════════════════════════════════╗${RESET}"
|
||||
echo -e "${BOLD}║ fastSyncAI — Multi-Connection Benchmark ║${RESET}"
|
||||
echo -e "${BOLD}╚══════════════════════════════════════════════════════════════╝${RESET}"
|
||||
echo ""
|
||||
|
||||
if [ "$LATENCY_MS" -gt 0 ]; then
|
||||
echo -e " Simulated RTT latency : ${YELLOW}${LATENCY_MS} ms${RESET}"
|
||||
else
|
||||
echo -e " Simulated RTT latency : ${GREEN}none (raw loopback)${RESET}"
|
||||
fi
|
||||
echo -e " Server port : $PORT"
|
||||
echo -e " Connection counts : ${CONNECTIONS[*]}"
|
||||
echo ""
|
||||
|
||||
generate_data
|
||||
setup_latency
|
||||
echo ""
|
||||
|
||||
# Collect results
|
||||
declare -a RES_MS RES_MBS
|
||||
info "Running benchmark passes..."
|
||||
echo ""
|
||||
|
||||
MAX_MBS="0"
|
||||
for n in "${CONNECTIONS[@]}"; do
|
||||
echo -ne " Testing ${BOLD}${n}${RESET} connection(s)... "
|
||||
result=$(run_pass "$n")
|
||||
IFS='|' read -r ms mbs <<< "$result"
|
||||
RES_MS+=("$ms")
|
||||
RES_MBS+=("$mbs")
|
||||
# Track max throughput for bar chart scaling
|
||||
if LC_ALL=C awk "BEGIN{exit !(\"$mbs\"+0 > \"$MAX_MBS\"+0)}"; then MAX_MBS="$mbs"; fi
|
||||
echo -e "${GREEN}${mbs} MB/s${RESET} in ${ms} ms"
|
||||
done
|
||||
|
||||
teardown_latency
|
||||
|
||||
# ── Results table ────────────────────────────────────────────────────────────
|
||||
echo ""
|
||||
echo -e "${BOLD}Results${RESET}"
|
||||
echo ""
|
||||
echo -e " ${BOLD}$(printf '%-11s %-10s %-10s %-32s' 'Connections' 'Time (ms)' 'MB/s' 'Throughput')${RESET}"
|
||||
echo " $(printf '%-11s %-10s %-10s %-32s' '-----------' '---------' '----' '---------')"
|
||||
|
||||
for i in "${!CONNECTIONS[@]}"; do
|
||||
n="${CONNECTIONS[$i]}"
|
||||
ms="${RES_MS[$i]}"
|
||||
mbs="${RES_MBS[$i]}"
|
||||
bar=$(draw_bar "$mbs" "$MAX_MBS" 2>/dev/null || echo "")
|
||||
printf " %-11s %-10s %-10s %s\n" "$n" "$ms" "$mbs" "$bar"
|
||||
done
|
||||
|
||||
echo ""
|
||||
|
||||
# ── Speedup analysis ─────────────────────────────────────────────────────────
|
||||
base_mbs="${RES_MBS[0]}"
|
||||
echo -e "${BOLD}Speedup vs. 1 connection${RESET}"
|
||||
echo ""
|
||||
for i in "${!CONNECTIONS[@]}"; do
|
||||
n="${CONNECTIONS[$i]}"
|
||||
mbs="${RES_MBS[$i]}"
|
||||
speedup=$(LC_ALL=C awk "BEGIN{printf \"%.2f\", $mbs / ($base_mbs == 0 ? 1 : $base_mbs)}")
|
||||
if LC_ALL=C awk "BEGIN{exit !($speedup >= 2.0)}"; then
|
||||
color="$GREEN"
|
||||
elif LC_ALL=C awk "BEGIN{exit !($speedup >= 1.3)}"; then
|
||||
color="$YELLOW"
|
||||
else
|
||||
color="$RESET"
|
||||
fi
|
||||
LC_ALL=C awk -v n="$n" -v s="$speedup" -v c="$color" -v r="$RESET" \
|
||||
'BEGIN{printf " %2s connection(s): %s%.2fx%s\n", n, c, s+0, r}'
|
||||
done
|
||||
|
||||
echo ""
|
||||
ok "Benchmark done. Cleaning up..."
|
||||
rm -rf "$DATA_DIR" "$DEST_DIR"
|
||||
echo ""
|
||||
Executable
+572
@@ -0,0 +1,572 @@
|
||||
#!/usr/bin/env bash
|
||||
# =============================================================================
|
||||
# benchmark_comprehensive.sh — Comprehensive benchmark for fastSyncAI
|
||||
#
|
||||
# Compares fastSyncAI against rsync, rclone, unison, and other tools
|
||||
# Tests different connection counts and settings
|
||||
#
|
||||
# Usage:
|
||||
# ./benchmark_comprehensive.sh [DATA_SIZE_MB] [RUN_COUNT] [LATENCY_MS]
|
||||
#
|
||||
# Examples:
|
||||
# ./benchmark_comprehensive.sh # 100 MB, 3 runs, no latency (default)
|
||||
# ./benchmark_comprehensive.sh 500 # 500 MB, 3 runs, no latency
|
||||
# ./benchmark_comprehensive.sh 100 5 # 100 MB, 5 runs, no latency
|
||||
# ./benchmark_comprehensive.sh 100 1 20 # 100 MB, 1 run, 20ms RTT latency
|
||||
# ./benchmark_comprehensive.sh 100 1 100 # 100 MB, 1 run, 100ms RTT (WAN-like)
|
||||
#
|
||||
# Requirements:
|
||||
# - rsync (usually pre-installed)
|
||||
# - rclone (optional, for cloud/local sync comparison)
|
||||
# - unison (optional, for bidirectional sync comparison)
|
||||
# - cp (for baseline comparison)
|
||||
# - sudo (for network latency simulation via tc netem)
|
||||
# =============================================================================
|
||||
|
||||
set -euo pipefail
|
||||
|
||||
# ── Defaults ──────────────────────────────────────────────────────────────
|
||||
DATA_SIZE_MB=${1:-100}
|
||||
RUN_COUNT=${2:-3}
|
||||
LATENCY_MS=${3:-0}
|
||||
PORT=19299
|
||||
HOST="127.0.0.1"
|
||||
|
||||
SERVER_BIN="./fastsync_server"
|
||||
CLIENT_BIN="./fastsync_client"
|
||||
|
||||
# ── Directories ────────────────────────────────────────────────────────────
|
||||
TEST_DIR="bench_comprehensive_$$"
|
||||
SRC_DIR="$TEST_DIR/src"
|
||||
DST_DIR_BASE="$TEST_DIR/dst"
|
||||
|
||||
# ── Connection counts to test for fastSyncAI ───────────────────────────────
|
||||
CONN_COUNTS=(1 2 4 8 16)
|
||||
|
||||
# ── Colours ────────────────────────────────────────────────────────────────
|
||||
RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
|
||||
CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'
|
||||
|
||||
# ── Helpers ────────────────────────────────────────────────────────────────
|
||||
die() { echo -e "${RED}ERROR: $*${RESET}" >&2; exit 1; }
|
||||
info() { echo -e "${CYAN}▶ $*${RESET}"; }
|
||||
ok() { echo -e "${GREEN}✓ $*${RESET}"; }
|
||||
warn() { echo -e "${YELLOW}⚠ $*${RESET}"; }
|
||||
|
||||
# ── Latency simulation (tc netem) ────────────────────────────────────────
|
||||
setup_latency() {
|
||||
if [ "$LATENCY_MS" -gt 0 ]; then
|
||||
info "Adding ${LATENCY_MS}ms RTT latency to lo via tc netem..."
|
||||
if ! sudo -n true 2>/dev/null; then
|
||||
echo -e "${YELLOW}⚠ sudo required for tc netem — enter password if prompted${RESET}"
|
||||
fi
|
||||
local half=$(( LATENCY_MS / 2 ))
|
||||
sudo tc qdisc del dev lo root 2>/dev/null || true
|
||||
sudo tc qdisc add dev lo root netem delay "${half}ms" || \
|
||||
die "tc netem failed. Install iproute2 or run without latency argument."
|
||||
ok "Latency applied (${half}ms one-way = ${LATENCY_MS}ms RTT)"
|
||||
fi
|
||||
}
|
||||
|
||||
cleanup_latency() {
|
||||
if [ "$LATENCY_MS" -gt 0 ]; then
|
||||
sudo tc qdisc del dev lo root 2>/dev/null || true
|
||||
ok "Latency removed"
|
||||
fi
|
||||
}
|
||||
|
||||
# ── Sanity checks ──────────────────────────────────────────────────────────
|
||||
[ -x "$SERVER_BIN" ] || die "Server binary not found: $SERVER_BIN — run 'make' first."
|
||||
[ -x "$CLIENT_BIN" ] || die "Client binary not found: $CLIENT_BIN — run 'make' first."
|
||||
command -v rsync >/dev/null 2>&1 || die "rsync not found. Install rsync first."
|
||||
|
||||
# Check for optional tools
|
||||
HAS_RCLONE=$(command -v rclone >/dev/null 2>&1 && echo "1" || echo "0")
|
||||
HAS_UNISON=$(command -v unison >/dev/null 2>&1 && echo "1" || echo "0")
|
||||
HAS_PV=$(command -v pv >/dev/null 2>&1 && echo "1" || echo "0")
|
||||
|
||||
cleanup() {
|
||||
cleanup_latency
|
||||
rm -rf "$TEST_DIR"
|
||||
}
|
||||
trap cleanup EXIT
|
||||
|
||||
# ── Generate test data ──────────────────────────────────────────────────────
|
||||
generate_test_data() {
|
||||
info "Generating ~${DATA_SIZE_MB}MB test data..."
|
||||
rm -rf "$TEST_DIR"
|
||||
mkdir -p "$SRC_DIR/small" "$SRC_DIR/medium" "$SRC_DIR/large"
|
||||
|
||||
# Small files: many files to test overhead (~25% of total)
|
||||
local small_count=$(( (DATA_SIZE_MB * 1048576 / 4) / 262144 ))
|
||||
[ "$small_count" -lt 10 ] && small_count=10
|
||||
[ "$small_count" -gt 100 ] && small_count=100
|
||||
info " Creating $small_count small files (256KB each)..."
|
||||
for i in $(seq 1 $small_count); do
|
||||
dd if=/dev/urandom bs=256K count=1 of="$SRC_DIR/small/file_$i.bin" 2>/dev/null
|
||||
done
|
||||
|
||||
# Medium files: ~50% of total
|
||||
local medium_count=$(( (DATA_SIZE_MB * 1048576 / 2) / 1048576 ))
|
||||
[ "$medium_count" -lt 5 ] && medium_count=5
|
||||
[ "$medium_count" -gt 20 ] && medium_count=20
|
||||
info " Creating $medium_count medium files (1MB each)..."
|
||||
for i in $(seq 1 $medium_count); do
|
||||
dd if=/dev/urandom bs=1M count=1 of="$SRC_DIR/medium/file_$i.bin" 2>/dev/null
|
||||
done
|
||||
|
||||
# Large files: remaining ~25%
|
||||
local large_size=$(( DATA_SIZE_MB - (small_count * 256 / 1024) - medium_count ))
|
||||
[ "$large_size" -lt 5 ] && large_size=5
|
||||
local large_count=3
|
||||
[ "$large_size" -lt 10 ] && large_count=1
|
||||
info " Creating $large_count large files (~${large_size}MB total)..."
|
||||
for i in $(seq 1 $large_count); do
|
||||
local this_size=$(( large_size * 1048576 / large_count / 1048576 ))
|
||||
[ "$this_size" -lt 1 ] && this_size=1
|
||||
dd if=/dev/urandom bs=1M count=$this_size of="$SRC_DIR/large/file_$i.bin" 2>/dev/null
|
||||
done
|
||||
|
||||
local total_files total_size
|
||||
total_files=$(find "$SRC_DIR" -type f | wc -l)
|
||||
total_size=$(du -sh "$SRC_DIR" | cut -f1)
|
||||
ok "Generated $total_files files, $total_size total in $SRC_DIR"
|
||||
}
|
||||
|
||||
# ── Verification helper ────────────────────────────────────────────────────
|
||||
verify_sync() {
|
||||
local src_dir=$1
|
||||
local dst_dir=$2
|
||||
local src_count=$(find "$src_dir" -type f | wc -l)
|
||||
local dst_count=$(find "$dst_dir" -type f | wc -l)
|
||||
[ "$src_count" -ne "$dst_count" ] && return 1
|
||||
local src_size=$(find "$src_dir" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
local dst_size=$(find "$dst_dir" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
[ "$src_size" -ne "$dst_size" ] && return 1
|
||||
return 0
|
||||
}
|
||||
|
||||
# ── Draw bar chart ────────────────────────────────────────────────────────
|
||||
draw_bar() {
|
||||
local val=$1 max=$2 width=30
|
||||
if [ "$max" -eq 0 ]; then max=1; fi
|
||||
local filled
|
||||
filled=$(LC_ALL=C awk "BEGIN{printf \"%d\", ($val * $width / $max)}")
|
||||
[ "$filled" -gt "$width" ] && filled=$width
|
||||
local bar=""
|
||||
for ((i=0; i<filled; i++)); do bar+="█"; done
|
||||
for ((i=filled; i<width; i++)); do bar+="░"; done
|
||||
echo "$bar"
|
||||
}
|
||||
|
||||
# ── Run fastSyncAI with specific connection count ──────────────────────────
|
||||
run_fastsync() {
|
||||
local nconn=$1
|
||||
local dst_dir="$DST_DIR_BASE/fastsync_${nconn}"
|
||||
local server_port=$((PORT + nconn)) # Unique port per test to avoid conflicts
|
||||
rm -rf "$dst_dir"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
"$SERVER_BIN" -p "$server_port" -d "$dst_dir" > /dev/null 2>&1 &
|
||||
local srv_pid=$!
|
||||
sleep 0.2
|
||||
|
||||
local output
|
||||
output=$(timeout 120 "$CLIENT_BIN" -h "$HOST" -p "$server_port" -s "$SRC_DIR" -n "$nconn" 2>&1) || true
|
||||
|
||||
# Wait for client to fully finish sending DONE and server to process all data
|
||||
sleep 3
|
||||
# Signal server to exit (it will finish current transfers and die)
|
||||
kill "$srv_pid" 2>/dev/null || true
|
||||
timeout 10 wait "$srv_pid" 2>/dev/null || true
|
||||
# Force sync to ensure all disk writes are complete before verification
|
||||
sync
|
||||
|
||||
# Extract from BENCH line
|
||||
local ms mbs
|
||||
ms=$(echo "$output" | grep "^BENCH:" | grep -oP 'ms=\K[0-9.]+' || echo "0")
|
||||
mbs=$(echo "$output" | grep "^BENCH:" | grep -oP 'throughput_mbs=\K[0-9.]+' || echo "0")
|
||||
|
||||
if verify_sync "$SRC_DIR" "$dst_dir"; then
|
||||
echo "${ms}|${mbs}|1"
|
||||
else
|
||||
echo "${ms}|${mbs}|0"
|
||||
fi
|
||||
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ── Run rsync ───────────────────────────────────────────────────────────────
|
||||
run_rsync() {
|
||||
local dst_dir="$DST_DIR_BASE/rsync"
|
||||
rm -rf "$dst_dir"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
local start end
|
||||
start=$(date +%s%N)
|
||||
rsync -a "$SRC_DIR/" "$dst_dir/" > /dev/null 2>&1
|
||||
end=$(date +%s%N)
|
||||
|
||||
local elapsed_ms=$(( (end - start) / 1000000 ))
|
||||
local total_bytes
|
||||
total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
local mbs=0
|
||||
if [ "$elapsed_ms" -gt 0 ]; then
|
||||
mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
|
||||
fi
|
||||
|
||||
if verify_sync "$SRC_DIR" "$dst_dir"; then
|
||||
echo "${elapsed_ms}|${mbs}|1"
|
||||
else
|
||||
echo "${elapsed_ms}|${mbs}|0"
|
||||
fi
|
||||
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ── Run rsync with compression ──────────────────────────────────────────────
|
||||
run_rsync_compress() {
|
||||
local dst_dir="$DST_DIR_BASE/rsync_compress"
|
||||
rm -rf "$dst_dir"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
local start end
|
||||
start=$(date +%s%N)
|
||||
rsync -a --compress "$SRC_DIR/" "$dst_dir/" > /dev/null 2>&1
|
||||
end=$(date +%s%N)
|
||||
|
||||
local elapsed_ms=$(( (end - start) / 1000000 ))
|
||||
local total_bytes
|
||||
total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
local mbs=0
|
||||
if [ "$elapsed_ms" -gt 0 ]; then
|
||||
mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
|
||||
fi
|
||||
|
||||
if verify_sync "$SRC_DIR" "$dst_dir"; then
|
||||
echo "${elapsed_ms}|${mbs}|1"
|
||||
else
|
||||
echo "${elapsed_ms}|${mbs}|0"
|
||||
fi
|
||||
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ── Run rclone (if available) ─────────────────────────────────────────────
|
||||
run_rclone() {
|
||||
if [ "$HAS_RCLONE" -eq 0 ]; then
|
||||
echo "0|0|0" # Skip - not installed
|
||||
return
|
||||
fi
|
||||
|
||||
local dst_dir="$DST_DIR_BASE/rclone"
|
||||
rm -rf "$dst_dir"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
local start end
|
||||
start=$(date +%s%N)
|
||||
rclone copy "$SRC_DIR" "$dst_dir" -q --transfers 4 --checkers 8 2>/dev/null || true
|
||||
end=$(date +%s%N)
|
||||
|
||||
local elapsed_ms=$(( (end - start) / 1000000 ))
|
||||
local total_bytes
|
||||
total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
local mbs=0
|
||||
if [ "$elapsed_ms" -gt 0 ]; then
|
||||
mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
|
||||
fi
|
||||
|
||||
if verify_sync "$SRC_DIR" "$dst_dir"; then
|
||||
echo "${elapsed_ms}|${mbs}|1"
|
||||
else
|
||||
echo "${elapsed_ms}|${mbs}|0"
|
||||
fi
|
||||
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ── Run Unison (if available) ─────────────────────────────────────────────
|
||||
run_unison() {
|
||||
if [ "$HAS_UNISON" -eq 0 ]; then
|
||||
echo "0|0|0" # Skip - not installed
|
||||
return
|
||||
fi
|
||||
|
||||
local dst_dir="$DST_DIR_BASE/unison"
|
||||
rm -rf "$dst_dir"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
local start end
|
||||
start=$(date +%s%N)
|
||||
unison "$SRC_DIR" "$dst_dir" -batch -silent -noshutdown 2>/dev/null || true
|
||||
end=$(date +%s%N)
|
||||
|
||||
local elapsed_ms=$(( (end - start) / 1000000 ))
|
||||
local total_bytes
|
||||
total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
local mbs=0
|
||||
if [ "$elapsed_ms" -gt 0 ]; then
|
||||
mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
|
||||
fi
|
||||
|
||||
if verify_sync "$SRC_DIR" "$dst_dir"; then
|
||||
echo "${elapsed_ms}|${mbs}|1"
|
||||
else
|
||||
echo "${elapsed_ms}|${mbs}|0"
|
||||
fi
|
||||
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ── Run cp (baseline) ─────────────────────────────────────────────────────
|
||||
run_cp() {
|
||||
local dst_dir="$DST_DIR_BASE/cp"
|
||||
rm -rf "$dst_dir"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
local start end
|
||||
start=$(date +%s%N)
|
||||
cp -r "$SRC_DIR"/* "$dst_dir/" 2>/dev/null
|
||||
end=$(date +%s%N)
|
||||
|
||||
local elapsed_ms=$(( (end - start) / 1000000 ))
|
||||
local total_bytes
|
||||
total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
local mbs=0
|
||||
if [ "$elapsed_ms" -gt 0 ]; then
|
||||
mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
|
||||
fi
|
||||
|
||||
if verify_sync "$SRC_DIR" "$dst_dir"; then
|
||||
echo "${elapsed_ms}|${mbs}|1"
|
||||
else
|
||||
echo "${elapsed_ms}|${mbs}|0"
|
||||
fi
|
||||
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ────────────────────────────────────────────────────────────────────────────
|
||||
# MAIN
|
||||
# ────────────────────────────────────────────────────────────────────────────
|
||||
|
||||
echo ""
|
||||
echo -e "${BOLD}╔════════════════════════════════════════════════════════════════════════╗${RESET}"
|
||||
echo -e "${BOLD}║ fastSyncAI — Comprehensive Performance Benchmark ║${RESET}"
|
||||
echo -e "${BOLD}╚════════════════════════════════════════════════════════════════════════╝${RESET}"
|
||||
echo ""
|
||||
echo -e " Data size : ${CYAN}${DATA_SIZE_MB} MB${RESET}"
|
||||
echo -e " Runs per test : ${CYAN}${RUN_COUNT}${RESET}"
|
||||
echo -e " Latency : ${CYAN}${LATENCY_MS}ms RTT${RESET}"
|
||||
echo -e " Tools tested : fastSyncAI (${#CONN_COUNTS[@]} connection configs), rsync, rsync+compress$( [ "$HAS_RCLONE" -eq 1 ] && echo ", rclone" || echo "")$( [ "$HAS_UNISON" -eq 1 ] && echo ", unison" || echo "")${RESET}"
|
||||
echo ""
|
||||
|
||||
# Initialize result arrays
|
||||
declare -a FS_RESULTS RS_RESULTS RSC_RESULTS RCLONE_RESULTS UNISON_RESULTS CP_RESULTS
|
||||
declare -a FS_LABELS=("fastSyncAI (1 conn)" "fastSyncAI (2 conn)" "fastSyncAI (4 conn)" "fastSyncAI (8 conn)" "fastSyncAI (16 conn)")
|
||||
|
||||
# Setup latency if requested
|
||||
if [ "$LATENCY_MS" -gt 0 ]; then
|
||||
setup_latency
|
||||
echo ""
|
||||
fi
|
||||
|
||||
info "Generating test data..."
|
||||
generate_test_data
|
||||
echo ""
|
||||
|
||||
# ── Test fastSyncAI with different connection counts ───────────────────────
|
||||
info "Testing fastSyncAI with different connection counts..."
|
||||
for nconn in "${CONN_COUNTS[@]}"; do
|
||||
echo -n " Testing ${nconn} connections... "
|
||||
result=$(run_fastsync $nconn)
|
||||
IFS='|' read -r ms mbs verified <<< "$result"
|
||||
FS_RESULTS+=("$ms|$mbs|$verified")
|
||||
if [ "$verified" -eq 1 ]; then
|
||||
ok "${mbs} MB/s (${ms}ms)"
|
||||
else
|
||||
warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
done
|
||||
echo ""
|
||||
|
||||
# ── Test rsync ─────────────────────────────────────────────────────────────
|
||||
echo -n " Testing rsync... "
|
||||
result=$(run_rsync)
|
||||
IFS='|' read -r ms mbs verified <<< "$result"
|
||||
RS_RESULTS=("$ms|$mbs|$verified")
|
||||
if [ "$verified" -eq 1 ]; then
|
||||
ok "${mbs} MB/s (${ms}ms)"
|
||||
else
|
||||
warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
|
||||
# ── Test rsync with compression ────────────────────────────────────────────
|
||||
echo -n " Testing rsync + compress... "
|
||||
result=$(run_rsync_compress)
|
||||
IFS='|' read -r ms mbs verified <<< "$result"
|
||||
RSC_RESULTS=("$ms|$mbs|$verified")
|
||||
if [ "$verified" -eq 1 ]; then
|
||||
ok "${mbs} MB/s (${ms}ms)"
|
||||
else
|
||||
warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
|
||||
# ── Test rclone (if available) ─────────────────────────────────────────────
|
||||
if [ "$HAS_RCLONE" -eq 1 ]; then
|
||||
echo -n " Testing rclone... "
|
||||
result=$(run_rclone)
|
||||
IFS='|' read -r ms mbs verified <<< "$result"
|
||||
RCLONE_RESULTS=("$ms|$mbs|$verified")
|
||||
if [ "$verified" -eq 1 ]; then
|
||||
ok "${mbs} MB/s (${ms}ms)"
|
||||
else
|
||||
warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
else
|
||||
warn "rclone not installed - skipping"
|
||||
fi
|
||||
|
||||
# ── Test Unison (if available) ─────────────────────────────────────────────
|
||||
if [ "$HAS_UNISON" -eq 1 ]; then
|
||||
echo -n " Testing unison... "
|
||||
result=$(run_unison)
|
||||
IFS='|' read -r ms mbs verified <<< "$result"
|
||||
UNISON_RESULTS=("$ms|$mbs|$verified")
|
||||
if [ "$verified" -eq 1 ]; then
|
||||
ok "${mbs} MB/s (${ms}ms)"
|
||||
else
|
||||
warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
else
|
||||
warn "unison not installed - skipping"
|
||||
fi
|
||||
|
||||
# ── Test cp (baseline) ─────────────────────────────────────────────────────
|
||||
echo -n " Testing cp (baseline)... "
|
||||
result=$(run_cp)
|
||||
IFS='|' read -r ms mbs verified <<< "$result"
|
||||
CP_RESULTS=("$ms|$mbs|$verified")
|
||||
if [ "$verified" -eq 1 ]; then
|
||||
ok "${mbs} MB/s (${ms}ms)"
|
||||
else
|
||||
warn "${mbs} MB/s (${ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
|
||||
echo ""
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╗${RESET}"
|
||||
echo -e "${BOLD} CONNECTION COUNT COMPARISON${RESET}"
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╝${RESET}"
|
||||
echo ""
|
||||
|
||||
# Find max MB/s for scaling
|
||||
calc_max_mbs() {
|
||||
local max=0
|
||||
for res in "${FS_RESULTS[@]}" "${RS_RESULTS[@]}" "${RSC_RESULTS[@]}" "${RCLONE_RESULTS[@]}" "${UNISON_RESULTS[@]}" "${CP_RESULTS[@]}"; do
|
||||
local mbs=$(echo "$res" | cut -d'|' -f2)
|
||||
local int_mbs=$(echo "$mbs" | awk '{printf "%d", $1+0}')
|
||||
[ "$int_mbs" -gt "$max" ] && max=$int_mbs
|
||||
done
|
||||
echo $max
|
||||
}
|
||||
|
||||
MAX_MBS=$(calc_max_mbs)
|
||||
[ "$MAX_MBS" -eq 0 ] && MAX_MBS=100
|
||||
|
||||
printf " %-25s %-10s %-10s %s\n" "Tool" "Time (ms)" "MB/s" "Throughput"
|
||||
printf " %-25s %-10s %-10s %s\n" "-----------------------" "----------" "----------" "-----------"
|
||||
|
||||
# Print fastSyncAI results with different connection counts
|
||||
for i in "${!FS_RESULTS[@]}"; do
|
||||
IFS='|' read -r ms mbs verified <<< "${FS_RESULTS[$i]}"
|
||||
bar=$(draw_bar "$mbs" "$MAX_MBS")
|
||||
verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
|
||||
printf " %-25s %-10s %-10s %s %s\n" "${FS_LABELS[$i]}" "$ms" "$mbs" "$bar" "$verified_str"
|
||||
done
|
||||
|
||||
# Print other tool results
|
||||
printf "\n %-25s %-10s %-10s %s\n" "Other Tools:" "" "" ""
|
||||
printf " %-25s %-10s %-10s %s\n" "-----------------------" "----------" "----------" "-----------"
|
||||
|
||||
# rsync
|
||||
IFS='|' read -r ms mbs verified <<< "${RS_RESULTS[0]}"
|
||||
bar=$(draw_bar "$mbs" "$MAX_MBS")
|
||||
verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
|
||||
printf " %-25s %-10s %-10s %s %s\n" "rsync" "$ms" "$mbs" "$bar" "$verified_str"
|
||||
|
||||
# rsync + compress
|
||||
IFS='|' read -r ms mbs verified <<< "${RSC_RESULTS[0]}"
|
||||
bar=$(draw_bar "$mbs" "$MAX_MBS")
|
||||
verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
|
||||
printf " %-25s %-10s %-10s %s %s\n" "rsync + compress" "$ms" "$mbs" "$bar" "$verified_str"
|
||||
|
||||
# rclone
|
||||
if [ "${RCLONE_RESULTS[0]}" != "0|0|0" ]; then
|
||||
IFS='|' read -r ms mbs verified <<< "${RCLONE_RESULTS[0]}"
|
||||
bar=$(draw_bar "$mbs" "$MAX_MBS")
|
||||
verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
|
||||
printf " %-25s %-10s %-10s %s %s\n" "rclone" "$ms" "$mbs" "$bar" "$verified_str"
|
||||
fi
|
||||
|
||||
# unison
|
||||
if [ "${UNISON_RESULTS[0]}" != "0|0|0" ]; then
|
||||
IFS='|' read -r ms mbs verified <<< "${UNISON_RESULTS[0]}"
|
||||
bar=$(draw_bar "$mbs" "$MAX_MBS")
|
||||
verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
|
||||
printf " %-25s %-10s %-10s %s %s\n" "unison" "$ms" "$mbs" "$bar" "$verified_str"
|
||||
fi
|
||||
|
||||
# cp
|
||||
IFS='|' read -r ms mbs verified <<< "${CP_RESULTS[0]}"
|
||||
bar=$(draw_bar "$mbs" "$MAX_MBS")
|
||||
verified_str=$([ "$verified" -eq 1 ] && echo "✓" || echo "✗")
|
||||
printf " %-25s %-10s %-10s %s %s\n" "cp (baseline)" "$ms" "$mbs" "$bar" "$verified_str"
|
||||
|
||||
echo ""
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╗${RESET}"
|
||||
echo -e "${BOLD} SPEEDUP ANALYSIS${RESET}"
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╝${RESET}"
|
||||
echo ""
|
||||
|
||||
# Calculate speedups vs rsync
|
||||
IFS='|' read -r rs_ms rs_mbs rs_verified <<< "${RS_RESULTS[0]}"
|
||||
if [ "$rs_mbs" != "0" ]; then
|
||||
echo " Speedup vs rsync (higher is better):"
|
||||
echo ""
|
||||
for i in "${!FS_RESULTS[@]}"; do
|
||||
IFS='|' read -r fs_ms fs_mbs fs_verified <<< "${FS_RESULTS[$i]}"
|
||||
if [ "$fs_mbs" != "0" ]; then
|
||||
speedup=$(awk "BEGIN {printf \"%.2f\", $fs_mbs / $rs_mbs}")
|
||||
if [ "$(awk \"BEGIN {print ($speedup >= 2.0) ? 1 : 0}\")" = "1" ]; then
|
||||
color="$GREEN"
|
||||
elif [ "$(awk \"BEGIN {print ($speedup >= 1.3) ? 1 : 0}\")" = "1" ]; then
|
||||
color="$YELLOW"
|
||||
else
|
||||
color="$RESET"
|
||||
fi
|
||||
printf " %-25s: %s%.2fx faster%s\n" "${FS_LABELS[$i]}" "$color" "$speedup" "$RESET"
|
||||
fi
|
||||
done
|
||||
echo ""
|
||||
fi
|
||||
|
||||
# Best connection count
|
||||
best_idx=0
|
||||
best_mbs=0
|
||||
for i in "${!FS_RESULTS[@]}"; do
|
||||
IFS='|' read -r ms mbs verified <<< "${FS_RESULTS[$i]}"
|
||||
mbs_int=$(echo "$mbs" | awk '{printf "%d", $1+0}')
|
||||
if [ "$mbs_int" -gt "$best_mbs" ]; then
|
||||
best_mbs=$mbs_int
|
||||
best_idx=$i
|
||||
fi
|
||||
done
|
||||
|
||||
ok "Best fastSyncAI config: ${FS_LABELS[$best_idx]} (${best_mbs} MB/s)"
|
||||
|
||||
echo ""
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╗${RESET}"
|
||||
echo -e "${BOLD} COMPLETE${RESET}"
|
||||
echo -e "${BOLD}════════════════════════════════════════════════════════════════════════╝${RESET}"
|
||||
echo ""
|
||||
ok "Benchmark complete!"
|
||||
Executable
+363
@@ -0,0 +1,363 @@
|
||||
#!/usr/bin/env bash
|
||||
# =============================================================================
|
||||
# compare_rsync.sh — Compare fastSyncAI performance against rsync
|
||||
#
|
||||
# Usage:
|
||||
# ./compare_rsync.sh [DATA_SIZE_MB] [RUN_COUNT]
|
||||
#
|
||||
# Examples:
|
||||
# ./compare_rsync.sh # 100 MB, 3 runs (default)
|
||||
# ./compare_rsync.sh 500 # 500 MB, 3 runs
|
||||
# ./compare_rsync.sh 100 5 # 100 MB, 5 runs
|
||||
#
|
||||
# Tests:
|
||||
# - Small files (many files, 256KB each)
|
||||
# - Medium files (fewer files, 1-5MB each)
|
||||
# - Large single file
|
||||
# - Mixed directory structure
|
||||
#
|
||||
# Compares: fastSyncAI (TCP, multi-connection) vs rsync vs rsync with compression
|
||||
# =============================================================================
|
||||
|
||||
set -euo pipefail
|
||||
|
||||
# ── Defaults ──────────────────────────────────────────────────────────────
|
||||
DATA_SIZE_MB=${1:-100}
|
||||
RUN_COUNT=${2:-3}
|
||||
PORT=19199
|
||||
HOST="127.0.0.1"
|
||||
|
||||
SERVER_BIN="./fastsync_server"
|
||||
CLIENT_BIN="./fastsync_client"
|
||||
|
||||
# ── Directories ────────────────────────────────────────────────────────────
|
||||
TEST_DIR="compare_test_$$"
|
||||
SRC_DIR="$TEST_DIR/src"
|
||||
DST_DIR_BASE="$TEST_DIR/dst"
|
||||
|
||||
# ── Colours ────────────────────────────────────────────────────────────────
|
||||
RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
|
||||
CYAN='\033[0;36m'; BOLD='\033[1m'; RESET='\033[0m'
|
||||
|
||||
# ── Helpers ────────────────────────────────────────────────────────────────
|
||||
die() { echo -e "${RED}ERROR: $*${RESET}" >&2; exit 1; }
|
||||
info() { echo -e "${CYAN}▶ $*${RESET}"; }
|
||||
ok() { echo -e "${GREEN}✓ $*${RESET}"; }
|
||||
warn() { echo -e "${YELLOW}⚠ $*${RESET}"; }
|
||||
|
||||
# ── Sanity checks ──────────────────────────────────────────────────────────
|
||||
[ -x "$SERVER_BIN" ] || die "Server binary not found: $SERVER_BIN — run 'make' first."
|
||||
[ -x "$CLIENT_BIN" ] || die "Client binary not found: $CLIENT_BIN — run 'make' first."
|
||||
command -v rsync >/dev/null 2>&1 || die "rsync not found. Install rsync first."
|
||||
|
||||
cleanup() {
|
||||
pkill -f "fastsync_server" 2>/dev/null || true
|
||||
pkill -f "fastsync_client" 2>/dev/null || true
|
||||
rm -rf "$TEST_DIR"
|
||||
}
|
||||
trap cleanup EXIT
|
||||
|
||||
# ── Generate test data ──────────────────────────────────────────────────────
|
||||
generate_test_data() {
|
||||
info "Generating ~${DATA_SIZE_MB}MB test data..."
|
||||
rm -rf "$TEST_DIR"
|
||||
mkdir -p "$SRC_DIR/small" "$SRC_DIR/medium" "$SRC_DIR/large"
|
||||
|
||||
# Small files: many small files to test overhead
|
||||
# ~25% of total size in 256KB files
|
||||
local small_count=$(( (DATA_SIZE_MB * 1048576 / 4) / 262144 ))
|
||||
if [ "$small_count" -lt 1 ]; then small_count=10; fi
|
||||
if [ "$small_count" -gt 100 ]; then small_count=100; fi
|
||||
info " Creating $small_count small files (256KB each)..."
|
||||
for i in $(seq 1 $small_count); do
|
||||
dd if=/dev/urandom bs=256K count=1 of="$SRC_DIR/small/file_$i.bin" 2>/dev/null
|
||||
done
|
||||
|
||||
# Medium files: 1MB each
|
||||
local medium_count=$(( (DATA_SIZE_MB * 1048576 / 2) / 1048576 ))
|
||||
if [ "$medium_count" -lt 1 ]; then medium_count=5; fi
|
||||
if [ "$medium_count" -gt 20 ]; then medium_count=20; fi
|
||||
info " Creating $medium_count medium files (1MB each)..."
|
||||
for i in $(seq 1 $medium_count); do
|
||||
dd if=/dev/urandom bs=1M count=1 of="$SRC_DIR/medium/file_$i.bin" 2>/dev/null
|
||||
done
|
||||
|
||||
# Large files: remaining size in fewer large files
|
||||
local large_size=$(( DATA_SIZE_MB - (small_count * 256 / 1024) - medium_count ))
|
||||
if [ "$large_size" -lt 5 ]; then large_size=5; fi
|
||||
local large_count=3
|
||||
if [ "$large_size" -lt 10 ]; then large_count=1; fi
|
||||
info " Creating $large_count large files (~${large_size}MB total)..."
|
||||
for i in $(seq 1 $large_count); do
|
||||
local this_size=$(( large_size * 1048576 / large_count / 1048576 ))
|
||||
if [ "$this_size" -lt 1 ]; then this_size=1; fi
|
||||
dd if=/dev/urandom bs=1M count=$this_size of="$SRC_DIR/large/file_$i.bin" 2>/dev/null
|
||||
done
|
||||
|
||||
local total_files total_size
|
||||
total_files=$(find "$SRC_DIR" -type f | wc -l)
|
||||
total_size=$(du -sh "$SRC_DIR" | cut -f1)
|
||||
ok "Generated $total_files files, $total_size total in $SRC_DIR"
|
||||
}
|
||||
|
||||
# ── Timing helper ───────────────────────────────────────────────────────────
|
||||
# Returns time in milliseconds
|
||||
run_with_timer() {
|
||||
local start end
|
||||
start=$(date +%s%N)
|
||||
"$@" > /dev/null 2>&1
|
||||
end=$(date +%s%N)
|
||||
local elapsed_ms=$(( (end - start) / 1000000 ))
|
||||
echo $elapsed_ms
|
||||
}
|
||||
|
||||
# ── Run fastSyncAI ──────────────────────────────────────────────────────────
|
||||
run_fastsync() {
|
||||
local dst_dir="$DST_DIR_BASE/fastsync_$$"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
# Clean destination
|
||||
rm -rf "$dst_dir"/*
|
||||
|
||||
# Start server in background
|
||||
"$SERVER_BIN" -p "$PORT" -d "$dst_dir" > /dev/null 2>&1 &
|
||||
local srv_pid=$!
|
||||
sleep 0.2
|
||||
|
||||
# Run client and capture output
|
||||
local client_output
|
||||
client_output=$(timeout 120 "$CLIENT_BIN" -h "$HOST" -p "$PORT" -s "$SRC_DIR" -n 4 2>&1) || true
|
||||
|
||||
# Wait for server to finish writing all files
|
||||
sleep 3
|
||||
# Clean up server
|
||||
kill "$srv_pid" 2>/dev/null || true
|
||||
wait "$srv_pid" 2>/dev/null || true
|
||||
# Force sync to ensure all disk writes are complete before verification
|
||||
sync
|
||||
|
||||
# Extract throughput from BENCH line
|
||||
local ms mbs
|
||||
ms=$(echo "$client_output" | grep "^BENCH:" | grep -oP 'ms=\K[0-9.]+' || echo "0")
|
||||
mbs=$(echo "$client_output" | grep "^BENCH:" | grep -oP 'throughput_mbs=\K[0-9.]+' || echo "0")
|
||||
|
||||
# Verify files
|
||||
if diff <(cd "$SRC_DIR" && find . -type f -exec md5sum {} \; | sort) \
|
||||
<(cd "$dst_dir" && find . -type f -exec md5sum {} \; | sort) > /dev/null 2>&1; then
|
||||
echo "${ms}|${mbs}|1"
|
||||
else
|
||||
echo "${ms}|${mbs}|0"
|
||||
fi
|
||||
|
||||
# Cleanup
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ── Run rsync ───────────────────────────────────────────────────────────────
|
||||
run_rsync() {
|
||||
local use_compress=${1:-0}
|
||||
local dst_dir="$DST_DIR_BASE/rsync_$$"
|
||||
mkdir -p "$dst_dir"
|
||||
|
||||
# Clean destination
|
||||
rm -rf "$dst_dir"/*
|
||||
|
||||
local start end
|
||||
start=$(date +%s%N)
|
||||
|
||||
if [ "$use_compress" -eq 1 ]; then
|
||||
rsync -a --compress --progress "$SRC_DIR/" "$dst_dir/" > /dev/null 2>&1
|
||||
else
|
||||
rsync -a --progress "$SRC_DIR/" "$dst_dir/" > /dev/null 2>&1
|
||||
fi
|
||||
|
||||
end=$(date +%s%N)
|
||||
local elapsed_ms=$(( (end - start) / 1000000 ))
|
||||
|
||||
# Calculate throughput
|
||||
local total_bytes
|
||||
total_bytes=$(find "$SRC_DIR" -type f -exec stat -c %s {} \; | awk '{sum+=$1} END {print sum}')
|
||||
local mbs=0
|
||||
if [ "$elapsed_ms" -gt 0 ]; then
|
||||
mbs=$(awk "BEGIN {printf \"%.2f\", $total_bytes / 1048576.0 / ($elapsed_ms / 1000.0)}")
|
||||
fi
|
||||
|
||||
# Verify files
|
||||
local verified=1
|
||||
if ! diff <(cd "$SRC_DIR" && find . -type f -exec md5sum {} \; | sort) \
|
||||
<(cd "$dst_dir" && find . -type f -exec md5sum {} \; | sort) > /dev/null 2>&1; then
|
||||
verified=0
|
||||
fi
|
||||
|
||||
echo "${elapsed_ms}|${mbs}|${verified}"
|
||||
|
||||
# Cleanup
|
||||
rm -rf "$dst_dir"
|
||||
}
|
||||
|
||||
# ── Run comparison ──────────────────────────────────────────────────────────
|
||||
run_comparison() {
|
||||
local run=$1
|
||||
info "Run $run/$RUN_COUNT..."
|
||||
|
||||
# Generate fresh data for each run
|
||||
generate_test_data
|
||||
|
||||
# Test fastSyncAI
|
||||
echo -n " Testing fastSyncAI... "
|
||||
local fs_result
|
||||
fs_result=$(run_fastsync)
|
||||
IFS='|' read -r fs_ms fs_mbs fs_verified <<< "$fs_result"
|
||||
if [ "$fs_verified" -eq 1 ]; then
|
||||
ok "${fs_mbs} MB/s (${fs_ms}ms)"
|
||||
else
|
||||
warn "${fs_mbs} MB/s (${fs_ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
|
||||
# Test rsync (no compression)
|
||||
echo -n " Testing rsync... "
|
||||
local rs_result
|
||||
rs_result=$(run_rsync 0)
|
||||
IFS='|' read -r rs_ms rs_mbs rs_verified <<< "$rs_result"
|
||||
if [ "$rs_verified" -eq 1 ]; then
|
||||
ok "${rs_mbs} MB/s (${rs_ms}ms)"
|
||||
else
|
||||
warn "${rs_mbs} MB/s (${rs_ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
|
||||
# Test rsync with compression
|
||||
echo -n " Testing rsync + compress... "
|
||||
local rsc_result
|
||||
rsc_result=$(run_rsync 1)
|
||||
IFS='|' read -r rsc_ms rsc_mbs rsc_verified <<< "$rsc_result"
|
||||
if [ "$rsc_verified" -eq 1 ]; then
|
||||
ok "${rsc_mbs} MB/s (${rsc_ms}ms)"
|
||||
else
|
||||
warn "${rsc_mbs} MB/s (${rsc_ms}ms) - VERIFICATION FAILED"
|
||||
fi
|
||||
|
||||
echo ""
|
||||
echo " === Run $run Results ==="
|
||||
printf " %-20s %-10s %-10s %s\n" "Tool" "Time (ms)" "MB/s" "Verified"
|
||||
printf " %-20s %-10s %-10s %s\n" "--------------------" "----------" "----------" "---------"
|
||||
printf " %-20s %-10s %-10s %s\n" "fastSyncAI" "$fs_ms" "$fs_mbs" "($([ "$fs_verified" -eq 1 ] && echo "✓" || echo "✗"))"
|
||||
printf " %-20s %-10s %-10s %s\n" "rsync" "$rs_ms" "$rs_mbs" "($([ "$rs_verified" -eq 1 ] && echo "✓" || echo "✗"))"
|
||||
printf " %-20s %-10s %-10s %s\n" "rsync+compress" "$rsc_ms" "$rsc_mbs" "($([ "$rsc_verified" -eq 1 ] && echo "✓" || echo "✗"))"
|
||||
echo ""
|
||||
|
||||
# Return formatted results
|
||||
echo "RUN:$run|fastSyncAI:${fs_ms}:${fs_mbs}:${fs_verified}|rsync:${rs_ms}:${rs_mbs}:${rs_verified}|rsync_c:${rsc_ms}:${rsc_mbs}:${rsc_verified}"
|
||||
}
|
||||
|
||||
# ────────────────────────────────────────────────────────────────────────────
|
||||
# MAIN
|
||||
# ────────────────────────────────────────────────────────────────────────────
|
||||
|
||||
echo ""
|
||||
echo -e "${BOLD}╔══════════════════════════════════════════════════════════════╗${RESET}"
|
||||
echo -e "${BOLD}║ fastSyncAI vs rsync — Performance Comparison ║${RESET}"
|
||||
echo -e "${BOLD}╚══════════════════════════════════════════════════════════════╝${RESET}"
|
||||
echo ""
|
||||
echo -e " Data size : ${CYAN}${DATA_SIZE_MB} MB${RESET}"
|
||||
echo -e " Runs per test : ${CYAN}${RUN_COUNT}${RESET}"
|
||||
echo -e " Server port : ${CYAN}${PORT}${RESET}"
|
||||
echo ""
|
||||
|
||||
# Collect all results
|
||||
declare -a ALL_RESULTS
|
||||
|
||||
for run in $(seq 1 $RUN_COUNT); do
|
||||
result=$(run_comparison $run)
|
||||
ALL_RESULTS+=("$result")
|
||||
done
|
||||
|
||||
# ── Print summary ────────────────────────────────────────────────────────────
|
||||
echo ""
|
||||
echo -e "${BOLD}═══════════════════════════════════════════════════════════════${RESET}"
|
||||
echo -e "${BOLD} SUMMARY${RESET}"
|
||||
echo -e "${BOLD}═══════════════════════════════════════════════════════════════${RESET}"
|
||||
echo ""
|
||||
|
||||
# Parse all results
|
||||
declare -A FS_MS FS_MBS FS_VERIFIED
|
||||
declare -A RS_MS RS_MBS RS_VERIFIED
|
||||
declare -A RSC_MS RSC_MBS RSC_VERIFIED
|
||||
|
||||
for result in "${ALL_RESULTS[@]}"; do
|
||||
# Extract run number
|
||||
run_num=$(echo "$result" | grep -oP 'RUN:\K[0-9]+')
|
||||
|
||||
# Extract fastSyncAI
|
||||
fs_data=$(echo "$result" | grep -oP 'fastSyncAI:\K[^|]+')
|
||||
IFS=':' read -r fs_ms fs_mbs fs_v <<< "$fs_data"
|
||||
FS_MS[$run_num]="$fs_ms"
|
||||
FS_MBS[$run_num]="$fs_mbs"
|
||||
FS_VERIFIED[$run_num]="$fs_v"
|
||||
|
||||
# Extract rsync
|
||||
rs_data=$(echo "$result" | grep -oP 'rsync:\K[^|]+')
|
||||
IFS=':' read -r rs_ms rs_mbs rs_v <<< "$rs_data"
|
||||
RS_MS[$run_num]="$rs_ms"
|
||||
RS_MBS[$run_num]="$rs_mbs"
|
||||
RS_VERIFIED[$run_num]="$rs_v"
|
||||
|
||||
# Extract rsync+compress
|
||||
rsc_data=$(echo "$result" | grep -oP 'rsync_c:\K[^|]+')
|
||||
IFS=':' read -r rsc_ms rsc_mbs rsc_v <<< "$rsc_data"
|
||||
RSC_MS[$run_num]="$rsc_ms"
|
||||
RSC_MBS[$run_num]="$rsc_mbs"
|
||||
RSC_VERIFIED[$run_num]="$rsc_v"
|
||||
done
|
||||
|
||||
# Calculate averages
|
||||
calc_avg() {
|
||||
local -n arr=$1
|
||||
local sum=0 count=0
|
||||
for val in "${arr[@]}"; do
|
||||
sum=$(awk "BEGIN {print $sum + $val}")
|
||||
count=$((count + 1))
|
||||
done
|
||||
if [ "$count" -gt 0 ]; then
|
||||
awk "BEGIN {printf \"%.1f\", $sum / $count}"
|
||||
else
|
||||
echo "0"
|
||||
fi
|
||||
}
|
||||
|
||||
fs_avg_ms=$(calc_avg FS_MS)
|
||||
fs_avg_mbs=$(calc_avg FS_MBS)
|
||||
rs_avg_ms=$(calc_avg RS_MS)
|
||||
rs_avg_mbs=$(calc_avg RS_MBS)
|
||||
rsc_avg_ms=$(calc_avg RSC_MS)
|
||||
rsc_avg_mbs=$(calc_avg RSC_MBS)
|
||||
|
||||
# Check all verified
|
||||
all_fs_ok=1; for v in "${FS_VERIFIED[@]}"; do [ "$v" -ne 1 ] && all_fs_ok=0; done
|
||||
all_rs_ok=1; for v in "${RS_VERIFIED[@]}"; do [ "$v" -ne 1 ] && all_rs_ok=0; done
|
||||
all_rsc_ok=1; for v in "${RSC_VERIFIED[@]}"; do [ "$v" -ne 1 ] && all_rsc_ok=0; done
|
||||
|
||||
# Print averages
|
||||
printf " %-20s %-10s %-10s %s\n" "Tool" "Avg Time (ms)" "Avg MB/s" "All OK"
|
||||
printf " %-20s %-10s %-10s %s\n" "--------------------" "------------" "----------" "-------"
|
||||
printf " %-20s %-10s %-10s %s\n" "fastSyncAI" "$fs_avg_ms" "$fs_avg_mbs" "($([ "$all_fs_ok" -eq 1 ] && echo "✓" || echo "✗"))"
|
||||
printf " %-20s %-10s %-10s %s\n" "rsync" "$rs_avg_ms" "$rs_avg_mbs" "($([ "$all_rs_ok" -eq 1 ] && echo "✓" || echo "✗"))"
|
||||
printf " %-20s %-10s %-10s %s\n" "rsync+compress" "$rsc_avg_ms" "$rsc_avg_mbs" "($([ "$all_rsc_ok" -eq 1 ] && echo "✓" || echo "✗"))"
|
||||
|
||||
# Speedup calculation
|
||||
echo ""
|
||||
if [ "$(awk "BEGIN {print ($rs_avg_mbs > 0) ? 1 : 0}")" = "1" ]; then
|
||||
fs_speedup=$(awk "BEGIN {printf \"%.2f\", $fs_avg_mbs / ($rs_avg_mbs == 0 ? 0.01 : $rs_avg_mbs)}")
|
||||
|
||||
# Compare as strings to avoid floating point issues
|
||||
if [ "$(awk "BEGIN {print ($fs_avg_mbs > $rs_avg_mbs) ? 1 : 0}")" = "1" ]; then
|
||||
echo -e " fastSyncAI is ${GREEN}${fs_speedup}x faster than rsync${RESET}"
|
||||
elif [ "$(awk "BEGIN {print ($rs_avg_mbs > $fs_avg_mbs) ? 1 : 0}")" = "1" ]; then
|
||||
speedup_inv=$(awk "BEGIN {printf \"%.2f\", $rs_avg_mbs / ($fs_avg_mbs == 0 ? 0.01 : $fs_avg_mbs)}")
|
||||
echo -e " rsync is ${GREEN}${speedup_inv}x faster than fastSyncAI${RESET}"
|
||||
else
|
||||
echo -e " Both tools performed similarly"
|
||||
fi
|
||||
fi
|
||||
|
||||
echo ""
|
||||
ok "Comparison complete!"
|
||||
Executable
BIN
Binary file not shown.
Executable
BIN
Binary file not shown.
+705
@@ -0,0 +1,705 @@
|
||||
#include "common.h"
|
||||
#include <sys/sendfile.h>
|
||||
#include <getopt.h>
|
||||
#include <dirent.h>
|
||||
#include <stdatomic.h>
|
||||
#include <time.h>
|
||||
#include <netinet/tcp.h>
|
||||
#include <stdio.h>
|
||||
|
||||
// ── Helper to copy a file ────────────────────────────────────────────────
|
||||
static int copy_file(const char *src, const char *dst) {
|
||||
int src_fd = open(src, O_RDONLY);
|
||||
if (src_fd < 0) return -1;
|
||||
|
||||
int dst_fd = open(dst, O_WRONLY | O_CREAT | O_TRUNC, 0644);
|
||||
if (dst_fd < 0) { close(src_fd); return -1; }
|
||||
|
||||
char buf[65536];
|
||||
ssize_t n;
|
||||
while ((n = read(src_fd, buf, sizeof(buf))) > 0) {
|
||||
if (writen(dst_fd, buf, n) != n) { close(src_fd); close(dst_fd); return -1; }
|
||||
}
|
||||
|
||||
close(src_fd);
|
||||
close(dst_fd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// ── Simple fast hash for checksum-based skip ──────────────────────────────
|
||||
static uint64_t fast_hash_file(const char *path, uint64_t file_size) {
|
||||
// For small files (< 4KB), hash entire file
|
||||
// For large files, hash first 4KB + last 4KB + size
|
||||
FILE *f = fopen(path, "rb");
|
||||
if (!f) return 0;
|
||||
|
||||
uint64_t hash = file_size * 0x9e3779b97f4a7c15ULL;
|
||||
|
||||
// Hash first chunk
|
||||
unsigned char buf[4096];
|
||||
size_t n = fread(buf, 1, sizeof(buf), f);
|
||||
for (size_t i = 0; i < n; i++) {
|
||||
hash = hash * 0x880355f21e15d8c5ULL + buf[i];
|
||||
}
|
||||
|
||||
// For files > 8KB, also hash last chunk
|
||||
if (file_size > 8192) {
|
||||
if (fseeko(f, -(off_t)sizeof(buf), SEEK_END) == 0) {
|
||||
n = fread(buf, 1, sizeof(buf), f);
|
||||
for (size_t i = 0; i < n; i++) {
|
||||
hash = hash * 0x880355f21e15d8c5ULL + buf[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fclose(f);
|
||||
return hash;
|
||||
}
|
||||
|
||||
// ─── Per-connection context ────────────────────────────────────────────────
|
||||
|
||||
typedef struct {
|
||||
int tcp_fd;
|
||||
int use_udp;
|
||||
int udp_fd;
|
||||
struct sockaddr_in udp_server_addr;
|
||||
uint64_t udp_session_id;
|
||||
} sync_ctx_t;
|
||||
|
||||
// ─── Global stats (atomic for lock-free updates) ──────────────────────────
|
||||
|
||||
static atomic_uint_fast64_t g_bytes_sent = 0;
|
||||
static atomic_uint_fast32_t g_files_sent = 0;
|
||||
|
||||
// ─── UDP helpers ──────────────────────────────────────────────────────────
|
||||
|
||||
static int verify_and_resend(sync_ctx_t *ctx, int file_fd,
|
||||
uint32_t file_id, uint64_t file_size) {
|
||||
uint32_t total_blocks = (file_size + UDP_PAYLOAD_MAX - 1) / UDP_PAYLOAD_MAX;
|
||||
|
||||
while (1) {
|
||||
uint32_t req = MAGIC_VERIFY;
|
||||
if (writen(ctx->tcp_fd, &req, sizeof(req)) != sizeof(req)) return -1;
|
||||
if (writen(ctx->tcp_fd, &file_id, sizeof(file_id)) != sizeof(file_id)) return -1;
|
||||
|
||||
uint32_t missing = 0;
|
||||
if (readn(ctx->tcp_fd, &missing, sizeof(missing)) != sizeof(missing)) return -1;
|
||||
if (missing == 0) break;
|
||||
|
||||
uint32_t *ids = malloc(missing * sizeof(uint32_t));
|
||||
if (!ids) { perror("malloc"); return -1; }
|
||||
if (readn(ctx->tcp_fd, ids, missing * sizeof(uint32_t))
|
||||
!= (ssize_t)(missing * sizeof(uint32_t))) { free(ids); return -1; }
|
||||
|
||||
printf("[thread] Resending %u missing blocks...\n", missing);
|
||||
for (uint32_t i = 0; i < missing; i++) {
|
||||
uint32_t bid = ids[i];
|
||||
if (bid >= total_blocks) continue;
|
||||
uint64_t off = (uint64_t)bid * UDP_PAYLOAD_MAX;
|
||||
if (lseek(file_fd, off, SEEK_SET) == (off_t)-1) { perror("lseek"); continue; }
|
||||
|
||||
char payload[UDP_PAYLOAD_MAX];
|
||||
ssize_t nr = read(file_fd, payload, UDP_PAYLOAD_MAX);
|
||||
if (nr <= 0) continue;
|
||||
|
||||
udp_packet_header_t hdr;
|
||||
hdr.magic = MAGIC_UDP_DATA;
|
||||
hdr.session_id = ctx->udp_session_id;
|
||||
hdr.file_id = file_id;
|
||||
hdr.block_id = bid;
|
||||
hdr.block_offset = off;
|
||||
hdr.payload_len = nr;
|
||||
|
||||
char pkt[sizeof(hdr) + UDP_PAYLOAD_MAX];
|
||||
memcpy(pkt, &hdr, sizeof(hdr));
|
||||
memcpy(pkt + sizeof(hdr), payload, nr);
|
||||
sendto(ctx->udp_fd, pkt, sizeof(hdr) + nr, 0,
|
||||
(struct sockaddr *)&ctx->udp_server_addr,
|
||||
sizeof(ctx->udp_server_addr));
|
||||
}
|
||||
free(ids);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int send_file_udp(sync_ctx_t *ctx, const char *full_path,
|
||||
uint32_t file_id, uint64_t file_size) {
|
||||
int fd = open(full_path, O_RDONLY);
|
||||
if (fd < 0) { perror("open"); return -1; }
|
||||
|
||||
uint32_t total = (file_size + UDP_PAYLOAD_MAX - 1) / UDP_PAYLOAD_MAX;
|
||||
printf("[thread] UDP send: %s (%u blocks)\n", full_path, total);
|
||||
|
||||
for (uint32_t bid = 0; bid < total; bid++) {
|
||||
char payload[UDP_PAYLOAD_MAX];
|
||||
ssize_t nr = read(fd, payload, UDP_PAYLOAD_MAX);
|
||||
if (nr <= 0) break;
|
||||
|
||||
udp_packet_header_t hdr;
|
||||
hdr.magic = MAGIC_UDP_DATA;
|
||||
hdr.session_id = ctx->udp_session_id;
|
||||
hdr.file_id = file_id;
|
||||
hdr.block_id = bid;
|
||||
hdr.block_offset = (uint64_t)bid * UDP_PAYLOAD_MAX;
|
||||
hdr.payload_len = nr;
|
||||
|
||||
char pkt[sizeof(hdr) + UDP_PAYLOAD_MAX];
|
||||
memcpy(pkt, &hdr, sizeof(hdr));
|
||||
memcpy(pkt + sizeof(hdr), payload, nr);
|
||||
sendto(ctx->udp_fd, pkt, sizeof(hdr) + nr, 0,
|
||||
(struct sockaddr *)&ctx->udp_server_addr,
|
||||
sizeof(ctx->udp_server_addr));
|
||||
}
|
||||
|
||||
int ret = verify_and_resend(ctx, fd, file_id, file_size);
|
||||
close(fd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
// ─── Send a single file over one connection (TCP or UDP data) ─────────────
|
||||
|
||||
static int send_one_file(sync_ctx_t *ctx, const char *full_path,
|
||||
const char *rel_path) {
|
||||
struct stat st;
|
||||
if (stat(full_path, &st) < 0) { perror("stat"); return -1; }
|
||||
|
||||
file_meta_t meta;
|
||||
meta.magic = MAGIC_META;
|
||||
meta.name_len = strlen(rel_path);
|
||||
meta.file_size = st.st_size;
|
||||
meta.mode = st.st_mode;
|
||||
|
||||
if (writen(ctx->tcp_fd, &meta, sizeof(meta)) != sizeof(meta)) return -1;
|
||||
if (writen(ctx->tcp_fd, rel_path, meta.name_len) != (ssize_t)meta.name_len) return -1;
|
||||
|
||||
file_response_t resp;
|
||||
if (readn(ctx->tcp_fd, &resp, sizeof(resp)) != sizeof(resp)) return -1;
|
||||
|
||||
if (resp.response == RESP_SKIP) {
|
||||
printf("[thread] Skip: %s\n", rel_path);
|
||||
return 0;
|
||||
} else if (resp.response == RESP_USE_UDP) {
|
||||
if (send_file_udp(ctx, full_path, resp.file_id, meta.file_size) < 0)
|
||||
return -1;
|
||||
uint32_t ack = 0;
|
||||
if (readn(ctx->tcp_fd, &ack, sizeof(ack)) != sizeof(ack)
|
||||
|| ack != RESP_OK) {
|
||||
fprintf(stderr, "[thread] UDP finalize failed: %s\n", rel_path);
|
||||
return -1;
|
||||
}
|
||||
} else if (resp.response == RESP_SEND_DATA) {
|
||||
int fd = open(full_path, O_RDONLY);
|
||||
if (fd < 0) { perror("open"); return -1; }
|
||||
off_t off = 0;
|
||||
while (off < (off_t)meta.file_size) {
|
||||
ssize_t r = sendfile(ctx->tcp_fd, fd, &off, meta.file_size - off);
|
||||
if (r < 0) {
|
||||
if (errno == EINTR) continue;
|
||||
perror("sendfile"); close(fd); return -1;
|
||||
}
|
||||
if (r == 0) break;
|
||||
}
|
||||
close(fd);
|
||||
uint32_t ack = 0;
|
||||
if (readn(ctx->tcp_fd, &ack, sizeof(ack)) != sizeof(ack)
|
||||
|| ack != RESP_OK) {
|
||||
fprintf(stderr, "[thread] TCP finalize failed: %s\n", rel_path);
|
||||
return -1;
|
||||
}
|
||||
} else {
|
||||
fprintf(stderr, "[thread] Server rejected %s (code %u)\n",
|
||||
rel_path, resp.response);
|
||||
return -1;
|
||||
}
|
||||
|
||||
atomic_fetch_add(&g_bytes_sent, meta.file_size);
|
||||
atomic_fetch_add(&g_files_sent, 1);
|
||||
printf("[thread] Sent: %s\n", rel_path);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// ─── UDP session setup (called once per worker if -u) ─────────────────────
|
||||
|
||||
static int setup_udp(sync_ctx_t *ctx, const char *host) {
|
||||
uint32_t req = MAGIC_UDP_REQ;
|
||||
if (writen(ctx->tcp_fd, &req, sizeof(req)) != sizeof(req)) return -1;
|
||||
|
||||
uint32_t resp = 0;
|
||||
if (readn(ctx->tcp_fd, &resp, sizeof(resp)) != sizeof(resp)) return -1;
|
||||
if (resp != RESP_USE_UDP) {
|
||||
fprintf(stderr, "[thread] Server refused UDP, using TCP.\n");
|
||||
ctx->use_udp = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
udp_handshake_t hs;
|
||||
if (readn(ctx->tcp_fd, &hs, sizeof(hs)) != sizeof(hs)) return -1;
|
||||
ctx->udp_session_id = hs.session_id;
|
||||
|
||||
ctx->udp_fd = socket(AF_INET, SOCK_DGRAM, 0);
|
||||
if (ctx->udp_fd < 0) { perror("UDP socket"); return -1; }
|
||||
|
||||
// Tune UDP socket for better throughput
|
||||
int bufsize = 4 * 1024 * 1024; // 4 MB
|
||||
setsockopt(ctx->udp_fd, SOL_SOCKET, SO_SNDBUF, &bufsize, sizeof(bufsize));
|
||||
setsockopt(ctx->udp_fd, SOL_SOCKET, SO_RCVBUF, &bufsize, sizeof(bufsize));
|
||||
|
||||
memset(&ctx->udp_server_addr, 0, sizeof(ctx->udp_server_addr));
|
||||
ctx->udp_server_addr.sin_family = AF_INET;
|
||||
ctx->udp_server_addr.sin_port = htons(hs.udp_port);
|
||||
inet_pton(AF_INET, host, &ctx->udp_server_addr.sin_addr);
|
||||
|
||||
// Knock
|
||||
udp_packet_header_t knock;
|
||||
memset(&knock, 0, sizeof(knock));
|
||||
knock.magic = MAGIC_UDP_KNOCK;
|
||||
knock.session_id = hs.session_id;
|
||||
sendto(ctx->udp_fd, &knock, sizeof(knock), 0,
|
||||
(struct sockaddr *)&ctx->udp_server_addr,
|
||||
sizeof(ctx->udp_server_addr));
|
||||
|
||||
uint32_t ack = 0;
|
||||
if (readn(ctx->tcp_fd, &ack, sizeof(ack)) != sizeof(ack) || ack != RESP_OK) {
|
||||
fprintf(stderr, "[thread] UDP knock failed\n");
|
||||
return -1;
|
||||
}
|
||||
printf("[thread] UDP session ready (port %u)\n", hs.udp_port);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// ─── Batch file sending ────────────────────────────────────────────────────
|
||||
|
||||
static int send_batch_files(sync_ctx_t *ctx, file_task_t **tasks, int count) {
|
||||
// Collect and stat all files first (single pass to avoid double stat)
|
||||
// Also pre-open file descriptors for pipelining
|
||||
int *fds = malloc(count * sizeof(int));
|
||||
struct stat *stats = malloc(count * sizeof(struct stat));
|
||||
if (!fds || !stats) { perror("malloc"); free(fds); free(stats); return -1; }
|
||||
|
||||
batch_meta_header_t batch_hdr;
|
||||
batch_hdr.magic = MAGIC_BATCH_META;
|
||||
batch_hdr.count = count;
|
||||
batch_hdr.total_name_len = 0;
|
||||
batch_hdr.total_size = 0;
|
||||
|
||||
for (int i = 0; i < count; i++) {
|
||||
if (stat(tasks[i]->full_path, &stats[i]) < 0) {
|
||||
perror("stat");
|
||||
for (int j = 0; j < i; j++) close(fds[j]);
|
||||
free(fds); free(stats);
|
||||
return -1;
|
||||
}
|
||||
batch_hdr.total_name_len += strlen(tasks[i]->rel_path);
|
||||
batch_hdr.total_size += stats[i].st_size;
|
||||
|
||||
// Pre-open file descriptors
|
||||
fds[i] = open(tasks[i]->full_path, O_RDONLY);
|
||||
if (fds[i] < 0) {
|
||||
perror("open");
|
||||
for (int j = 0; j < i; j++) close(fds[j]);
|
||||
free(fds); free(stats);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
// Send batch header
|
||||
if (writen(ctx->tcp_fd, &batch_hdr, sizeof(batch_hdr)) != sizeof(batch_hdr)) {
|
||||
for (int j = 0; j < count; j++) close(fds[j]);
|
||||
free(fds); free(stats);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Send files with pipelining: meta+name+data for each file sequentially
|
||||
// This allows server to start writing file N while receiving meta for file N+1
|
||||
for (int i = 0; i < count; i++) {
|
||||
file_meta_t meta;
|
||||
meta.magic = 0;
|
||||
meta.name_len = strlen(tasks[i]->rel_path);
|
||||
meta.file_size = stats[i].st_size;
|
||||
meta.mode = stats[i].st_mode;
|
||||
meta.checksum = tasks[i]->checksum;
|
||||
|
||||
if (writen(ctx->tcp_fd, &meta, sizeof(meta)) != sizeof(meta)) {
|
||||
for (int j = 0; j < count; j++) close(fds[j]);
|
||||
free(fds); free(stats);
|
||||
return -1;
|
||||
}
|
||||
if (writen(ctx->tcp_fd, tasks[i]->rel_path, meta.name_len) != (ssize_t)meta.name_len) {
|
||||
for (int j = 0; j < count; j++) close(fds[j]);
|
||||
free(fds); free(stats);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Send file data using sendfile() for zero-copy transfer
|
||||
off_t file_offset = 0;
|
||||
ssize_t total_sent = 0;
|
||||
while (file_offset < (off_t)stats[i].st_size) {
|
||||
ssize_t sent = sendfile(ctx->tcp_fd, fds[i], &file_offset, stats[i].st_size - file_offset);
|
||||
if (sent < 0) {
|
||||
if (errno == EINTR) continue;
|
||||
perror("sendfile");
|
||||
for (int j = 0; j < count; j++) close(fds[j]);
|
||||
free(fds); free(stats);
|
||||
return -1;
|
||||
}
|
||||
if (sent == 0) break; // EOF
|
||||
total_sent += sent;
|
||||
}
|
||||
close(fds[i]);
|
||||
atomic_fetch_add(&g_bytes_sent, (uint64_t)total_sent);
|
||||
printf("[thread] Sent (pipelined+sendfile): %s\n", tasks[i]->rel_path);
|
||||
}
|
||||
|
||||
free(fds);
|
||||
free(stats);
|
||||
|
||||
// Update file count atomically
|
||||
atomic_fetch_add(&g_files_sent, count);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
// ─── Worker thread: owns one TCP connection, drains work queue ─────────────
|
||||
|
||||
static void *worker_thread(void *arg) {
|
||||
worker_arg_t *wa = (worker_arg_t *)arg;
|
||||
|
||||
// Connect TCP
|
||||
sync_ctx_t ctx;
|
||||
memset(&ctx, 0, sizeof(ctx));
|
||||
ctx.use_udp = wa->use_udp;
|
||||
|
||||
ctx.tcp_fd = socket(AF_INET, SOCK_STREAM, 0);
|
||||
if (ctx.tcp_fd < 0) { perror("socket"); wa->result = -1; return NULL; }
|
||||
|
||||
// TCP tuning for better throughput
|
||||
int optval = 1;
|
||||
setsockopt(ctx.tcp_fd, SOL_TCP, TCP_NODELAY, &optval, sizeof(optval));
|
||||
setsockopt(ctx.tcp_fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
|
||||
|
||||
// Large send/receive buffers
|
||||
int bufsize = 4 * 1024 * 1024; // 4 MB
|
||||
setsockopt(ctx.tcp_fd, SOL_SOCKET, SO_SNDBUF, &bufsize, sizeof(bufsize));
|
||||
setsockopt(ctx.tcp_fd, SOL_SOCKET, SO_RCVBUF, &bufsize, sizeof(bufsize));
|
||||
|
||||
struct sockaddr_in sa;
|
||||
memset(&sa, 0, sizeof(sa));
|
||||
sa.sin_family = AF_INET;
|
||||
sa.sin_port = htons(wa->port);
|
||||
inet_pton(AF_INET, wa->host, &sa.sin_addr);
|
||||
|
||||
if (connect(ctx.tcp_fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
|
||||
perror("connect"); close(ctx.tcp_fd); wa->result = -1; return NULL;
|
||||
}
|
||||
printf("[thread %d] TCP connected to %s:%d\n", wa->thread_id, wa->host, wa->port);
|
||||
|
||||
if (wa->use_udp && setup_udp(&ctx, wa->host) < 0) {
|
||||
close(ctx.tcp_fd); wa->result = -1; return NULL;
|
||||
}
|
||||
|
||||
// Drain queue with batching
|
||||
file_task_t *batch[BATCH_MAX_FILES];
|
||||
int batch_count = 0;
|
||||
|
||||
file_task_t *task;
|
||||
while ((task = wq_pop(wa->queue)) != NULL) {
|
||||
batch[batch_count++] = task;
|
||||
|
||||
// If batch is full, send it
|
||||
if (batch_count >= BATCH_MAX_FILES) {
|
||||
if (send_batch_files(&ctx, batch, batch_count) < 0) {
|
||||
fprintf(stderr, "[thread %d] Batch send failed\n", wa->thread_id);
|
||||
wa->result = -1;
|
||||
}
|
||||
// Free all tasks in batch
|
||||
for (int i = 0; i < batch_count; i++) {
|
||||
free(batch[i]);
|
||||
}
|
||||
batch_count = 0;
|
||||
}
|
||||
}
|
||||
|
||||
// Send remaining files in partial batch
|
||||
if (batch_count > 0) {
|
||||
if (send_batch_files(&ctx, batch, batch_count) < 0) {
|
||||
fprintf(stderr, "[thread %d] Final batch send failed\n", wa->thread_id);
|
||||
wa->result = -1;
|
||||
}
|
||||
for (int i = 0; i < batch_count; i++) {
|
||||
free(batch[i]);
|
||||
}
|
||||
}
|
||||
|
||||
// Signal done to server
|
||||
file_meta_t done;
|
||||
memset(&done, 0, sizeof(done));
|
||||
done.magic = MAGIC_DONE;
|
||||
writen(ctx.tcp_fd, &done, sizeof(done));
|
||||
|
||||
if (ctx.use_udp && ctx.udp_fd > 0) close(ctx.udp_fd);
|
||||
close(ctx.tcp_fd);
|
||||
printf("[thread %d] Done.\n", wa->thread_id);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// ─── Scanner: recursively walks dir, collects files, sorts by size, pushes to queue ──
|
||||
|
||||
typedef struct {
|
||||
work_queue_t *queue;
|
||||
char base_path[1024];
|
||||
} scanner_arg_t;
|
||||
|
||||
// Comparison function for sorting files by size (ascending: small files first)
|
||||
static int compare_files_by_size(const void *a, const void *b) {
|
||||
const file_task_t *fa = *(const file_task_t **)a;
|
||||
const file_task_t *fb = *(const file_task_t **)b;
|
||||
if (fa->file_size < fb->file_size) return -1;
|
||||
if (fa->file_size > fb->file_size) return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Collect all files recursively into a list
|
||||
static int collect_files(const char *base, const char *sub, file_task_t **list, int *count, int max_files) {
|
||||
char cur[2048];
|
||||
if (sub && sub[0])
|
||||
snprintf(cur, sizeof(cur), "%s/%s", base, sub);
|
||||
else
|
||||
snprintf(cur, sizeof(cur), "%s", base);
|
||||
|
||||
DIR *dir = opendir(cur);
|
||||
if (!dir) { perror("opendir"); return -1; }
|
||||
|
||||
struct dirent *e;
|
||||
while ((e = readdir(dir)) != NULL) {
|
||||
if (!strcmp(e->d_name, ".") || !strcmp(e->d_name, "..")) continue;
|
||||
|
||||
char rel[2048], full[2048];
|
||||
if (sub && sub[0]) {
|
||||
snprintf(rel, sizeof(rel), "%s/%s", sub, e->d_name);
|
||||
} else {
|
||||
snprintf(rel, sizeof(rel), "%s", e->d_name);
|
||||
}
|
||||
snprintf(full, sizeof(full), "%s/%s", base, rel);
|
||||
full[sizeof(full) - 1] = '\0';
|
||||
rel[sizeof(rel) - 1] = '\0';
|
||||
|
||||
struct stat st;
|
||||
if (lstat(full, &st) < 0) { perror("lstat"); continue; }
|
||||
|
||||
if (S_ISDIR(st.st_mode)) {
|
||||
if (collect_files(base, rel, list, count, max_files) < 0) {
|
||||
closedir(dir);
|
||||
return -1;
|
||||
}
|
||||
} else if (S_ISREG(st.st_mode)) {
|
||||
if (*count >= max_files) {
|
||||
fprintf(stderr, "Warning: Maximum file count reached, stopping scan\n");
|
||||
closedir(dir);
|
||||
return 0;
|
||||
}
|
||||
list[*count] = malloc(sizeof(file_task_t));
|
||||
if (!list[*count]) { perror("malloc"); closedir(dir); return -1; }
|
||||
snprintf(list[*count]->full_path, sizeof(list[*count]->full_path), "%s", full);
|
||||
snprintf(list[*count]->rel_path, sizeof(list[*count]->rel_path), "%s", rel);
|
||||
list[*count]->file_size = st.st_size;
|
||||
list[*count]->checksum = fast_hash_file(full, st.st_size);
|
||||
list[*count]->next = NULL;
|
||||
(*count)++;
|
||||
}
|
||||
}
|
||||
closedir(dir);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void *scanner_thread(void *arg) {
|
||||
scanner_arg_t *sa = (scanner_arg_t *)arg;
|
||||
|
||||
// First pass: count files to determine array size
|
||||
int file_count = 0;
|
||||
char cur[2048];
|
||||
DIR *dir = opendir(sa->base_path);
|
||||
if (!dir) { perror("opendir"); wq_finish(sa->queue); return NULL; }
|
||||
|
||||
struct dirent *e;
|
||||
while ((e = readdir(dir)) != NULL) {
|
||||
if (!strcmp(e->d_name, ".") || !strcmp(e->d_name, "..")) continue;
|
||||
|
||||
snprintf(cur, sizeof(cur), "%s/%s", sa->base_path, e->d_name);
|
||||
struct stat st;
|
||||
if (lstat(cur, &st) < 0) continue;
|
||||
|
||||
if (S_ISDIR(st.st_mode)) {
|
||||
// Recursively count
|
||||
DIR *subdir = opendir(cur);
|
||||
if (subdir) {
|
||||
struct dirent *se;
|
||||
while ((se = readdir(subdir)) != NULL) {
|
||||
if (!strcmp(se->d_name, ".") || !strcmp(se->d_name, "..")) continue;
|
||||
file_count++;
|
||||
}
|
||||
closedir(subdir);
|
||||
}
|
||||
} else if (S_ISREG(st.st_mode)) {
|
||||
file_count++;
|
||||
}
|
||||
}
|
||||
closedir(dir);
|
||||
|
||||
// Allocate array for file tasks
|
||||
file_task_t **file_list = malloc(file_count * sizeof(file_task_t *));
|
||||
if (!file_list) { perror("malloc"); wq_finish(sa->queue); return NULL; }
|
||||
|
||||
int count = 0;
|
||||
if (collect_files(sa->base_path, "", file_list, &count, file_count) < 0) {
|
||||
for (int i = 0; i < count; i++) free(file_list[i]);
|
||||
free(file_list);
|
||||
wq_finish(sa->queue);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// Sort files by size (smallest first for better pipelining)
|
||||
qsort(file_list, count, sizeof(file_task_t *), compare_files_by_size);
|
||||
|
||||
// Push sorted files to queue
|
||||
for (int i = 0; i < count; i++) {
|
||||
wq_push(sa->queue, file_list[i]->full_path, file_list[i]->rel_path, file_list[i]->file_size, file_list[i]->checksum);
|
||||
free(file_list[i]);
|
||||
}
|
||||
free(file_list);
|
||||
|
||||
wq_finish(sa->queue); /* broadcast to all waiting workers */
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// ─── main ──────────────────────────────────────────────────────────────────
|
||||
|
||||
static void print_usage(const char *prog) {
|
||||
fprintf(stderr,
|
||||
"Usage: %s -h <host> [-p <port>] -s <source> [-n <connections>] [-u]\n"
|
||||
" -n number of parallel TCP connections (default: 4)\n"
|
||||
" -u enable UDP data channel\n", prog);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
char *host = NULL;
|
||||
int port = DEFAULT_PORT;
|
||||
char *source = NULL;
|
||||
int nconn = 4;
|
||||
int use_udp = 0;
|
||||
int opt;
|
||||
|
||||
while ((opt = getopt(argc, argv, "h:p:s:n:u")) != -1) {
|
||||
switch (opt) {
|
||||
case 'h': host = optarg; break;
|
||||
case 'p': port = atoi(optarg); break;
|
||||
case 's': source = optarg; break;
|
||||
case 'n': nconn = atoi(optarg); break;
|
||||
case 'u': use_udp = 1; break;
|
||||
default: print_usage(argv[0]); exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
if (!host || !source) { print_usage(argv[0]); exit(EXIT_FAILURE); }
|
||||
if (nconn < 1) nconn = 1;
|
||||
if (nconn > 16) nconn = 16;
|
||||
|
||||
struct stat st;
|
||||
if (stat(source, &st) < 0) { perror("stat source"); exit(EXIT_FAILURE); }
|
||||
|
||||
printf("Starting sync: %s → %s:%d (connections=%d, udp=%s)\n",
|
||||
source, host, port, nconn, use_udp ? "yes" : "no");
|
||||
|
||||
// ── Create temp dir for single files (to use directory scanning) ─────────
|
||||
char temp_dir[2048] = "";
|
||||
int use_temp_dir = 0;
|
||||
char *final_source = (char *)source;
|
||||
|
||||
if (S_ISREG(st.st_mode)) {
|
||||
// Create temp dir, copy file there with its name
|
||||
strncpy(temp_dir, "/tmp/fastsync_temp_XXXXXX", sizeof(temp_dir));
|
||||
if (mkdtemp(temp_dir) == NULL) {
|
||||
perror("mkdtemp");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
use_temp_dir = 1;
|
||||
|
||||
char *fname = strrchr(source, '/');
|
||||
char new_path[2048];
|
||||
snprintf(new_path, sizeof(new_path), "%s/%s", temp_dir, fname ? fname + 1 : source);
|
||||
|
||||
// Copy file to temp dir
|
||||
if (copy_file(source, new_path) < 0) {
|
||||
perror("copy_file");
|
||||
rmdir(temp_dir);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
final_source = temp_dir;
|
||||
}
|
||||
|
||||
// ── Init shared work queue ────────────────────────────────────────────
|
||||
work_queue_t queue;
|
||||
wq_init(&queue);
|
||||
|
||||
// ── Start scanner thread ──────────────────────────────────────────────
|
||||
scanner_arg_t sarg;
|
||||
sarg.queue = &queue;
|
||||
snprintf(sarg.base_path, sizeof(sarg.base_path), "%s", final_source);
|
||||
pthread_t stid;
|
||||
pthread_create(&stid, NULL, scanner_thread, &sarg);
|
||||
pthread_detach(stid);
|
||||
|
||||
// ── Spawn N worker threads ────────────────────────────────────────────
|
||||
pthread_t *tids = malloc(nconn * sizeof(pthread_t));
|
||||
worker_arg_t *args = malloc(nconn * sizeof(worker_arg_t));
|
||||
if (!tids || !args) { perror("malloc"); exit(EXIT_FAILURE); }
|
||||
|
||||
// ── Start timer ───────────────────────────────────────────────────────
|
||||
struct timespec t_start, t_end;
|
||||
clock_gettime(CLOCK_MONOTONIC, &t_start);
|
||||
|
||||
for (int i = 0; i < nconn; i++) {
|
||||
args[i].thread_id = i;
|
||||
args[i].queue = &queue;
|
||||
args[i].host = host;
|
||||
args[i].port = port;
|
||||
args[i].use_udp = use_udp;
|
||||
args[i].result = 0;
|
||||
pthread_create(&tids[i], NULL, worker_thread, &args[i]);
|
||||
}
|
||||
|
||||
// ── Wait for all workers ──────────────────────────────────────────────
|
||||
int overall = 0;
|
||||
for (int i = 0; i < nconn; i++) {
|
||||
pthread_join(tids[i], NULL);
|
||||
if (args[i].result != 0) overall = -1;
|
||||
}
|
||||
|
||||
// ── Stop timer & print summary ────────────────────────────────────────
|
||||
clock_gettime(CLOCK_MONOTONIC, &t_end);
|
||||
double elapsed_ms = (t_end.tv_sec - t_start.tv_sec) * 1000.0
|
||||
+ (t_end.tv_nsec - t_start.tv_nsec) / 1e6;
|
||||
|
||||
uint64_t total_bytes = atomic_load(&g_bytes_sent);
|
||||
uint32_t total_files = atomic_load(&g_files_sent);
|
||||
double throughput = (total_bytes / 1048576.0) / (elapsed_ms / 1000.0);
|
||||
|
||||
printf("\n=== Sync complete: %u files, %lu bytes, %.1f ms, %.2f MB/s ===\n",
|
||||
total_files, (unsigned long)total_bytes, elapsed_ms, throughput);
|
||||
/* Machine-readable line for benchmark.sh to parse */
|
||||
printf("BENCH: connections=%d bytes=%lu ms=%.1f throughput_mbs=%.2f\n",
|
||||
nconn, (unsigned long)total_bytes, elapsed_ms, throughput);
|
||||
|
||||
wq_destroy(&queue);
|
||||
free(tids);
|
||||
free(args);
|
||||
|
||||
// Clean up temp directory for single file
|
||||
if (use_temp_dir) {
|
||||
// Remove the temp directory and its contents
|
||||
char cmd[2048];
|
||||
snprintf(cmd, sizeof(cmd), "rm -rf %s", temp_dir);
|
||||
system(cmd);
|
||||
}
|
||||
|
||||
return overall == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
|
||||
}
|
||||
Binary file not shown.
+134
@@ -0,0 +1,134 @@
|
||||
#ifndef COMMON_H
|
||||
#define COMMON_H
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <stdint.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <errno.h>
|
||||
#include <pthread.h>
|
||||
|
||||
// ─── Work-Queue (client-side, thread-safe) ───────────────────────────────────
|
||||
|
||||
typedef struct file_task {
|
||||
char full_path[2048];
|
||||
char rel_path[2048];
|
||||
uint64_t file_size;
|
||||
uint64_t checksum;
|
||||
struct file_task *next;
|
||||
} file_task_t;
|
||||
|
||||
typedef struct {
|
||||
file_task_t *head;
|
||||
file_task_t *tail;
|
||||
int done; // set to 1 when scanner is finished
|
||||
int error; // set to 1 on fatal scan error
|
||||
pthread_mutex_t lock;
|
||||
pthread_cond_t cond;
|
||||
} work_queue_t;
|
||||
|
||||
void wq_init(work_queue_t *q);
|
||||
void wq_push(work_queue_t *q, const char *full_path, const char *rel_path, uint64_t file_size, uint64_t checksum);
|
||||
file_task_t *wq_pop(work_queue_t *q); // blocks until item or done
|
||||
void wq_finish(work_queue_t *q);
|
||||
void wq_destroy(work_queue_t *q);
|
||||
|
||||
// ─── Worker-thread argument (client-side) ────────────────────────────────────
|
||||
|
||||
typedef struct {
|
||||
int thread_id;
|
||||
work_queue_t *queue;
|
||||
const char *host;
|
||||
int port;
|
||||
int use_udp;
|
||||
int result; // 0 = ok, -1 = error
|
||||
} worker_arg_t;
|
||||
|
||||
|
||||
#define DEFAULT_PORT 8082
|
||||
|
||||
// Protocol Magics
|
||||
#define MAGIC_META 0x53594E43 // 'SYNC'
|
||||
#define MAGIC_BATCH_META 0x42415443 // 'BATC' - Batch metadata
|
||||
#define MAGIC_DONE 0x444F4E45 // 'DONE'
|
||||
#define MAGIC_VERIFY 0x56455259 // 'VERY'
|
||||
#define MAGIC_UDP_REQ 0x55445052 // 'UDPR'
|
||||
|
||||
// Batch constants
|
||||
#define BATCH_MAX_FILES 64 // Max files per batch
|
||||
|
||||
|
||||
// Response Codes
|
||||
#define RESP_SEND_DATA 1
|
||||
#define RESP_SKIP 2
|
||||
#define RESP_ERROR 0
|
||||
#define RESP_OK 3
|
||||
#define RESP_USE_UDP 4
|
||||
|
||||
// UDP Constants
|
||||
#define UDP_PAYLOAD_MAX 1400
|
||||
#define MAGIC_UDP_DATA 0x55445044 // 'UDPD'
|
||||
#define MAGIC_UDP_KNOCK 0x5544504B // 'UDPK'
|
||||
|
||||
#pragma pack(push, 1)
|
||||
typedef struct {
|
||||
uint32_t magic;
|
||||
uint32_t name_len;
|
||||
uint64_t file_size;
|
||||
uint32_t mode;
|
||||
uint64_t checksum;
|
||||
} file_meta_t;
|
||||
|
||||
// Batch metadata: header followed by N file_meta_t + name strings
|
||||
typedef struct {
|
||||
uint32_t magic; // MAGIC_BATCH_META
|
||||
uint32_t count; // Number of files in batch
|
||||
uint32_t total_name_len; // Total length of all filenames combined
|
||||
uint64_t total_size; // Total size of all files
|
||||
} batch_meta_header_t;
|
||||
|
||||
typedef struct {
|
||||
uint32_t response;
|
||||
uint32_t file_id; // For single file
|
||||
uint32_t reserved[2];
|
||||
} file_response_t;
|
||||
|
||||
// Batch response: one response code for the whole batch
|
||||
typedef struct {
|
||||
uint32_t magic; // MAGIC_BATCH_META (echoed back)
|
||||
uint32_t count; // Number of files accepted
|
||||
uint32_t first_file_id; // First file_id in this batch
|
||||
} batch_response_t;
|
||||
|
||||
|
||||
typedef struct {
|
||||
uint32_t udp_port;
|
||||
uint64_t session_id;
|
||||
} udp_handshake_t;
|
||||
|
||||
typedef struct {
|
||||
uint32_t magic;
|
||||
uint64_t session_id;
|
||||
uint32_t file_id;
|
||||
uint32_t block_id;
|
||||
uint64_t block_offset;
|
||||
uint32_t payload_len;
|
||||
} udp_packet_header_t;
|
||||
#pragma pack(pop)
|
||||
|
||||
|
||||
// Socket Helpers
|
||||
ssize_t readn(int fd, void *vptr, size_t n);
|
||||
ssize_t writen(int fd, const void *vptr, size_t n);
|
||||
|
||||
// Directory/File Helpers
|
||||
int make_path(const char *path, mode_t mode);
|
||||
|
||||
#endif // COMMON_H
|
||||
+688
@@ -0,0 +1,688 @@
|
||||
#include "common.h"
|
||||
#include <getopt.h>
|
||||
#include <poll.h>
|
||||
#include <time.h>
|
||||
#include <netinet/tcp.h>
|
||||
#include <stdio.h>
|
||||
|
||||
// ── Simple fast hash for checksum-based skip ──────────────────────────────
|
||||
static uint64_t fast_hash_file(const char *path, uint64_t file_size) {
|
||||
FILE *f = fopen(path, "rb");
|
||||
if (!f) return 0;
|
||||
|
||||
uint64_t hash = file_size * 0x9e3779b97f4a7c15ULL;
|
||||
|
||||
unsigned char buf[4096];
|
||||
size_t n = fread(buf, 1, sizeof(buf), f);
|
||||
for (size_t i = 0; i < n; i++) {
|
||||
hash = hash * 0x880355f21e15d8c5ULL + buf[i];
|
||||
}
|
||||
|
||||
if (file_size > 8192) {
|
||||
if (fseeko(f, -(off_t)sizeof(buf), SEEK_END) == 0) {
|
||||
n = fread(buf, 1, sizeof(buf), f);
|
||||
for (size_t i = 0; i < n; i++) {
|
||||
hash = hash * 0x880355f21e15d8c5ULL + buf[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fclose(f);
|
||||
return hash;
|
||||
}
|
||||
|
||||
typedef struct {
|
||||
uint32_t file_id;
|
||||
char target_path[2048];
|
||||
int out_fd;
|
||||
uint64_t file_size;
|
||||
uint32_t total_blocks;
|
||||
char *received_blocks;
|
||||
} active_file_t;
|
||||
|
||||
int setup_udp_session(int tcp_fd, int *udp_fd_out, struct sockaddr_in *client_udp_addr_out, uint64_t *session_id_out) {
|
||||
int udp_fd = socket(AF_INET, SOCK_DGRAM, 0);
|
||||
if (udp_fd < 0) {
|
||||
perror("UDP socket creation failed");
|
||||
return -1;
|
||||
}
|
||||
|
||||
struct sockaddr_in udp_addr;
|
||||
memset(&udp_addr, 0, sizeof(udp_addr));
|
||||
udp_addr.sin_family = AF_INET;
|
||||
udp_addr.sin_addr.s_addr = INADDR_ANY;
|
||||
udp_addr.sin_port = 0; // Ephemeral port
|
||||
|
||||
if (bind(udp_fd, (struct sockaddr *)&udp_addr, sizeof(udp_addr)) < 0) {
|
||||
perror("UDP bind failed");
|
||||
close(udp_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Tune UDP socket for better throughput
|
||||
int bufsize = 4 * 1024 * 1024; // 4 MB
|
||||
setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &bufsize, sizeof(bufsize));
|
||||
setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &bufsize, sizeof(bufsize));
|
||||
|
||||
socklen_t addr_len = sizeof(udp_addr);
|
||||
if (getsockname(udp_fd, (struct sockaddr *)&udp_addr, &addr_len) < 0) {
|
||||
perror("getsockname failed");
|
||||
close(udp_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
uint32_t udp_port = ntohs(udp_addr.sin_port);
|
||||
uint64_t session_id = ((uint64_t)rand() << 32) | rand();
|
||||
|
||||
// Send response code and handshake over TCP
|
||||
uint32_t resp = RESP_USE_UDP;
|
||||
if (writen(tcp_fd, &resp, sizeof(resp)) != sizeof(resp)) {
|
||||
close(udp_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
udp_handshake_t handshake;
|
||||
handshake.udp_port = udp_port;
|
||||
handshake.session_id = session_id;
|
||||
if (writen(tcp_fd, &handshake, sizeof(handshake)) != sizeof(handshake)) {
|
||||
close(udp_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
printf("UDP port bound to %u. Waiting for knock with Session ID: %lu...\n", udp_port, (unsigned long)session_id);
|
||||
|
||||
// Timeout of 5s for the UDP knock
|
||||
struct timeval tv;
|
||||
tv.tv_sec = 5;
|
||||
tv.tv_usec = 0;
|
||||
setsockopt(udp_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
|
||||
|
||||
struct sockaddr_in client_udp_addr;
|
||||
socklen_t client_len = sizeof(client_udp_addr);
|
||||
udp_packet_header_t knock_hdr;
|
||||
|
||||
ssize_t n = recvfrom(udp_fd, &knock_hdr, sizeof(knock_hdr), 0,
|
||||
(struct sockaddr *)&client_udp_addr, &client_len);
|
||||
if (n < 0) {
|
||||
perror("UDP knock timeout or recvfrom failed");
|
||||
close(udp_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (knock_hdr.magic != MAGIC_UDP_KNOCK || knock_hdr.session_id != session_id) {
|
||||
fprintf(stderr, "Invalid UDP knock magic or session ID\n");
|
||||
close(udp_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Confirm session established on TCP
|
||||
resp = RESP_OK;
|
||||
if (writen(tcp_fd, &resp, sizeof(resp)) != sizeof(resp)) {
|
||||
close(udp_fd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
printf("UDP Session established successfully.\n");
|
||||
*udp_fd_out = udp_fd;
|
||||
*client_udp_addr_out = client_udp_addr;
|
||||
*session_id_out = session_id;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int receive_file_udp_loop(int tcp_fd, int udp_fd, uint64_t session_id, active_file_t *active) {
|
||||
struct pollfd fds[2];
|
||||
fds[0].fd = tcp_fd;
|
||||
fds[0].events = POLLIN;
|
||||
fds[1].fd = udp_fd;
|
||||
fds[1].events = POLLIN;
|
||||
|
||||
// Reset SO_RCVTIMEO on UDP socket (block indefinitely during active sync)
|
||||
struct timeval tv;
|
||||
tv.tv_sec = 0;
|
||||
tv.tv_usec = 0;
|
||||
setsockopt(udp_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
|
||||
|
||||
while (1) {
|
||||
int poll_ret = poll(fds, 2, -1);
|
||||
if (poll_ret < 0) {
|
||||
if (errno == EINTR) {
|
||||
continue;
|
||||
}
|
||||
perror("poll failed");
|
||||
return -1;
|
||||
}
|
||||
|
||||
// 1. Check UDP Data socket
|
||||
if (fds[1].revents & POLLIN) {
|
||||
char pkt[sizeof(udp_packet_header_t) + UDP_PAYLOAD_MAX];
|
||||
struct sockaddr_in src_addr;
|
||||
socklen_t src_len = sizeof(src_addr);
|
||||
ssize_t n = recvfrom(udp_fd, pkt, sizeof(pkt), 0,
|
||||
(struct sockaddr *)&src_addr, &src_len);
|
||||
if (n > 0) {
|
||||
if (n >= (ssize_t)sizeof(udp_packet_header_t)) {
|
||||
udp_packet_header_t *hdr = (udp_packet_header_t *)pkt;
|
||||
if (hdr->magic == MAGIC_UDP_DATA && hdr->session_id == session_id && hdr->file_id == active->file_id) {
|
||||
uint32_t bid = hdr->block_id;
|
||||
if (bid < active->total_blocks) {
|
||||
if (active->received_blocks[bid] == 0) {
|
||||
char *payload = pkt + sizeof(udp_packet_header_t);
|
||||
if (pwrite(active->out_fd, payload, hdr->payload_len, hdr->block_offset) != (ssize_t)hdr->payload_len) {
|
||||
perror("pwrite file block failed");
|
||||
} else {
|
||||
active->received_blocks[bid] = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// 2. Check TCP command socket
|
||||
if (fds[0].revents & POLLIN) {
|
||||
uint32_t req_magic = 0;
|
||||
ssize_t n = readn(tcp_fd, &req_magic, sizeof(req_magic));
|
||||
if (n <= 0) {
|
||||
return -1; // Disconnected
|
||||
}
|
||||
|
||||
if (req_magic == MAGIC_VERIFY) {
|
||||
uint32_t file_id = 0;
|
||||
if (readn(tcp_fd, &file_id, sizeof(file_id)) != sizeof(file_id)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (file_id != active->file_id) {
|
||||
fprintf(stderr, "File ID mismatch on verify query: got %u, active is %u\n", file_id, active->file_id);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Count missing blocks
|
||||
uint32_t missing_count = 0;
|
||||
for (uint32_t i = 0; i < active->total_blocks; i++) {
|
||||
if (active->received_blocks[i] == 0) {
|
||||
missing_count++;
|
||||
}
|
||||
}
|
||||
|
||||
// Send count
|
||||
if (writen(tcp_fd, &missing_count, sizeof(missing_count)) != sizeof(missing_count)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (missing_count == 0) {
|
||||
// Success!
|
||||
break;
|
||||
}
|
||||
|
||||
// Compile and send missing block IDs
|
||||
uint32_t *missing_array = malloc(missing_count * sizeof(uint32_t));
|
||||
if (!missing_array) {
|
||||
perror("malloc missing array");
|
||||
return -1;
|
||||
}
|
||||
uint32_t idx = 0;
|
||||
for (uint32_t i = 0; i < active->total_blocks; i++) {
|
||||
if (active->received_blocks[i] == 0) {
|
||||
missing_array[idx++] = i;
|
||||
}
|
||||
}
|
||||
|
||||
if (writen(tcp_fd, missing_array, missing_count * sizeof(uint32_t)) != (ssize_t)(missing_count * sizeof(uint32_t))) {
|
||||
free(missing_array);
|
||||
return -1;
|
||||
}
|
||||
free(missing_array);
|
||||
} else {
|
||||
fprintf(stderr, "Received unexpected TCP command magic: 0x%08x\n", req_magic);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
// ─── Per-connection thread wrapper ───────────────────────────────────────────
|
||||
|
||||
/* Forward declaration — defined further below */
|
||||
void handle_client(int sock_fd, const char *dest_dir);
|
||||
|
||||
typedef struct {
|
||||
|
||||
int client_fd;
|
||||
char dest_dir[1024];
|
||||
} client_thread_arg_t;
|
||||
|
||||
static void *client_thread(void *arg) {
|
||||
client_thread_arg_t *ca = (client_thread_arg_t *)arg;
|
||||
handle_client(ca->client_fd, ca->dest_dir);
|
||||
close(ca->client_fd);
|
||||
free(ca);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void handle_client(int sock_fd, const char *dest_dir) {
|
||||
printf("Client connected. Starting transfer session...\n");
|
||||
|
||||
int use_udp = 0;
|
||||
int udp_fd = -1;
|
||||
struct sockaddr_in client_udp_addr;
|
||||
uint64_t udp_session_id = 0;
|
||||
uint32_t file_id_counter = 0;
|
||||
|
||||
while (1) {
|
||||
uint32_t magic = 0;
|
||||
// Peek or read magic
|
||||
ssize_t n = readn(sock_fd, &magic, sizeof(magic));
|
||||
if (n <= 0) {
|
||||
if (n < 0) {
|
||||
perror("read magic failed");
|
||||
} else {
|
||||
printf("Client disconnected.\n");
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (magic == MAGIC_UDP_REQ) {
|
||||
if (setup_udp_session(sock_fd, &udp_fd, &client_udp_addr, &udp_session_id) < 0) {
|
||||
fprintf(stderr, "Failed to initialize UDP session. Falling back to TCP.\n");
|
||||
uint32_t resp_fail = RESP_ERROR;
|
||||
writen(sock_fd, &resp_fail, sizeof(resp_fail));
|
||||
} else {
|
||||
use_udp = 1;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (magic == MAGIC_DONE) {
|
||||
printf("Sync completed successfully.\n");
|
||||
break;
|
||||
}
|
||||
|
||||
if (magic == MAGIC_BATCH_META) {
|
||||
// Handle batch metadata
|
||||
// We already read the magic, now read the rest of the header
|
||||
batch_meta_header_t batch_hdr;
|
||||
uint32_t rest_of_header[3]; // count, total_name_len, total_size_hi
|
||||
uint32_t total_size_lo;
|
||||
if (readn(sock_fd, &rest_of_header, sizeof(rest_of_header)) != sizeof(rest_of_header) ||
|
||||
readn(sock_fd, &total_size_lo, sizeof(total_size_lo)) != sizeof(total_size_lo)) {
|
||||
fprintf(stderr, "Failed to read batch header\n");
|
||||
break;
|
||||
}
|
||||
batch_hdr.magic = magic;
|
||||
batch_hdr.count = rest_of_header[0];
|
||||
batch_hdr.total_name_len = rest_of_header[1];
|
||||
batch_hdr.total_size = ((uint64_t)rest_of_header[2] << 32) | total_size_lo;
|
||||
|
||||
if (batch_hdr.count > BATCH_MAX_FILES) {
|
||||
fprintf(stderr, "Batch count %u exceeds max %d\n", batch_hdr.count, BATCH_MAX_FILES);
|
||||
break;
|
||||
}
|
||||
|
||||
// No response needed - client sends data immediately after each file's metadata
|
||||
// Process each file in batch with pipelining: meta+name+data for each file
|
||||
uint32_t first_file_id = file_id_counter + 1;
|
||||
|
||||
for (uint32_t i = 0; i < batch_hdr.count; i++) {
|
||||
// Read metadata for this file
|
||||
file_meta_t meta;
|
||||
if (readn(sock_fd, &meta, sizeof(meta)) != sizeof(meta)) {
|
||||
fprintf(stderr, "Failed to read pipelined file meta %u\n", i);
|
||||
break;
|
||||
}
|
||||
|
||||
// Read filename
|
||||
char *filename = malloc(meta.name_len + 1);
|
||||
if (!filename) {
|
||||
perror("malloc filename");
|
||||
break;
|
||||
}
|
||||
if (readn(sock_fd, filename, meta.name_len) != (ssize_t)meta.name_len) {
|
||||
fprintf(stderr, "Failed to read pipelined filename %u\n", i);
|
||||
free(filename);
|
||||
break;
|
||||
}
|
||||
filename[meta.name_len] = '\0';
|
||||
|
||||
char target_path[2048];
|
||||
snprintf(target_path, sizeof(target_path), "%s/%s", dest_dir, filename);
|
||||
|
||||
// Check if file already exists with same size and checksum (skip if so)
|
||||
struct stat existing_st;
|
||||
if (stat(target_path, &existing_st) == 0 &&
|
||||
existing_st.st_size == meta.file_size &&
|
||||
S_ISREG(existing_st.st_mode)) {
|
||||
// File exists with same size - check checksum
|
||||
uint64_t existing_checksum = fast_hash_file(target_path, meta.file_size);
|
||||
if (existing_checksum == meta.checksum) {
|
||||
printf("Skip (checksum match): %s\n", target_path);
|
||||
free(filename);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// Create parent directory
|
||||
char *slash = strrchr(target_path, '/');
|
||||
if (slash) {
|
||||
*slash = '\0';
|
||||
if (make_path(target_path, 0755) < 0) {
|
||||
perror("Failed to create parent directory path");
|
||||
*slash = '/';
|
||||
free(filename);
|
||||
continue;
|
||||
}
|
||||
*slash = '/';
|
||||
}
|
||||
|
||||
int out_fd = open(target_path, O_WRONLY | O_CREAT | O_TRUNC, meta.mode);
|
||||
if (out_fd < 0) {
|
||||
perror("Failed to open target file");
|
||||
free(filename);
|
||||
continue;
|
||||
}
|
||||
|
||||
printf("Receiving (pipelined): %s (%lu bytes)\n", filename, (unsigned long)meta.file_size);
|
||||
|
||||
// Read file data
|
||||
char buffer[65536];
|
||||
uint64_t bytes_left = meta.file_size;
|
||||
int write_error = 0;
|
||||
while (bytes_left > 0) {
|
||||
size_t to_read = (bytes_left > sizeof(buffer)) ? sizeof(buffer) : bytes_left;
|
||||
ssize_t nread = read(sock_fd, buffer, to_read);
|
||||
if (nread < 0) {
|
||||
if (errno == EINTR) continue;
|
||||
perror("Socket read error");
|
||||
write_error = 1;
|
||||
break;
|
||||
}
|
||||
if (nread == 0) {
|
||||
fprintf(stderr, "Unexpected socket EOF\n");
|
||||
write_error = 1;
|
||||
break;
|
||||
}
|
||||
if (!write_error) {
|
||||
if (writen(out_fd, buffer, nread) != nread) {
|
||||
perror("File write error");
|
||||
write_error = 1;
|
||||
}
|
||||
}
|
||||
bytes_left -= nread;
|
||||
}
|
||||
if (!write_error) {
|
||||
fsync(out_fd); // Ensure data is flushed to disk
|
||||
}
|
||||
close(out_fd);
|
||||
free(filename);
|
||||
|
||||
if (!write_error) {
|
||||
printf("Saved (pipelined TCP): %s\n", target_path);
|
||||
}
|
||||
}
|
||||
|
||||
file_id_counter = first_file_id + batch_hdr.count;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (magic != MAGIC_META) {
|
||||
fprintf(stderr, "Received invalid magic header: 0x%08x\n", magic);
|
||||
break;
|
||||
}
|
||||
|
||||
// We received a file metadata packet (read rest of it)
|
||||
uint32_t name_len = 0;
|
||||
uint64_t file_size = 0;
|
||||
uint32_t mode = 0;
|
||||
|
||||
if (readn(sock_fd, &name_len, sizeof(name_len)) != sizeof(name_len) ||
|
||||
readn(sock_fd, &file_size, sizeof(file_size)) != sizeof(file_size) ||
|
||||
readn(sock_fd, &mode, sizeof(mode)) != sizeof(mode)) {
|
||||
fprintf(stderr, "Failed to read file metadata fields\n");
|
||||
break;
|
||||
}
|
||||
|
||||
// Read filename
|
||||
char filename[1024];
|
||||
if (name_len >= sizeof(filename)) {
|
||||
fprintf(stderr, "Filename too long: %u bytes\n", name_len);
|
||||
break;
|
||||
}
|
||||
if (readn(sock_fd, filename, name_len) != (ssize_t)name_len) {
|
||||
fprintf(stderr, "Failed to read filename\n");
|
||||
break;
|
||||
}
|
||||
filename[name_len] = '\0';
|
||||
|
||||
char target_path[2048];
|
||||
snprintf(target_path, sizeof(target_path), "%s/%s", dest_dir, filename);
|
||||
|
||||
// Ensure directories exist
|
||||
if (make_path(target_path, 0755) < 0) {
|
||||
perror("Failed to create parent directory path");
|
||||
file_response_t resp_err = {RESP_ERROR, 0, {0, 0}};
|
||||
writen(sock_fd, &resp_err, sizeof(resp_err));
|
||||
continue;
|
||||
}
|
||||
|
||||
uint32_t file_id = ++file_id_counter;
|
||||
|
||||
if (use_udp) {
|
||||
file_response_t resp_udp = {RESP_USE_UDP, file_id, {0, 0}};
|
||||
if (writen(sock_fd, &resp_udp, sizeof(resp_udp)) != sizeof(resp_udp)) {
|
||||
perror("Failed to send file response header");
|
||||
break;
|
||||
}
|
||||
|
||||
active_file_t active;
|
||||
active.file_id = file_id;
|
||||
active.file_size = file_size;
|
||||
active.total_blocks = (file_size + UDP_PAYLOAD_MAX - 1) / UDP_PAYLOAD_MAX;
|
||||
active.received_blocks = calloc(active.total_blocks, 1);
|
||||
snprintf(active.target_path, sizeof(active.target_path), "%s", target_path);
|
||||
|
||||
active.out_fd = open(target_path, O_WRONLY | O_CREAT | O_TRUNC, mode);
|
||||
if (active.out_fd < 0) {
|
||||
perror("Failed to open target file for UDP sync");
|
||||
free(active.received_blocks);
|
||||
break;
|
||||
}
|
||||
|
||||
printf("Receiving over UDP: %s (%lu bytes, %u blocks)\n", filename, (unsigned long)file_size, active.total_blocks);
|
||||
|
||||
int loop_ret = receive_file_udp_loop(sock_fd, udp_fd, udp_session_id, &active);
|
||||
close(active.out_fd);
|
||||
free(active.received_blocks);
|
||||
|
||||
if (loop_ret < 0) {
|
||||
fprintf(stderr, "UDP receive loop failed\n");
|
||||
break;
|
||||
}
|
||||
|
||||
// Send final ACK over TCP
|
||||
uint32_t ack_ok = RESP_OK;
|
||||
if (writen(sock_fd, &ack_ok, sizeof(ack_ok)) != sizeof(ack_ok)) {
|
||||
perror("Failed to send final file ACK");
|
||||
break;
|
||||
}
|
||||
|
||||
printf("Saved (UDP): %s\n", target_path);
|
||||
} else {
|
||||
// TCP fallback
|
||||
file_response_t resp_tcp = {RESP_SEND_DATA, 0, {0, 0}};
|
||||
if (writen(sock_fd, &resp_tcp, sizeof(resp_tcp)) != sizeof(resp_tcp)) {
|
||||
perror("Failed to send file response header");
|
||||
break;
|
||||
}
|
||||
|
||||
int out_fd = open(target_path, O_WRONLY | O_CREAT | O_TRUNC, mode);
|
||||
if (out_fd < 0) {
|
||||
perror("Failed to open target file for TCP sync");
|
||||
break;
|
||||
}
|
||||
|
||||
printf("Receiving over TCP: %s (%lu bytes)\n", filename, (unsigned long)file_size);
|
||||
|
||||
char buffer[65536];
|
||||
uint64_t bytes_left = file_size;
|
||||
int write_error = 0;
|
||||
while (bytes_left > 0) {
|
||||
size_t to_read = (bytes_left > sizeof(buffer)) ? sizeof(buffer) : bytes_left;
|
||||
ssize_t nread = read(sock_fd, buffer, to_read);
|
||||
if (nread < 0) {
|
||||
if (errno == EINTR) {
|
||||
continue;
|
||||
}
|
||||
perror("Socket read error");
|
||||
write_error = 1;
|
||||
break;
|
||||
}
|
||||
if (nread == 0) {
|
||||
fprintf(stderr, "Unexpected socket EOF\n");
|
||||
write_error = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!write_error) {
|
||||
if (writen(out_fd, buffer, nread) != nread) {
|
||||
perror("File write error");
|
||||
write_error = 1;
|
||||
}
|
||||
}
|
||||
bytes_left -= nread;
|
||||
}
|
||||
close(out_fd);
|
||||
|
||||
uint32_t ack = write_error ? RESP_ERROR : RESP_OK;
|
||||
if (writen(sock_fd, &ack, sizeof(ack)) != sizeof(ack)) {
|
||||
perror("Failed to send final file ACK");
|
||||
break;
|
||||
}
|
||||
|
||||
if (!write_error) {
|
||||
printf("Saved (TCP): %s\n", target_path);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (udp_fd >= 0) {
|
||||
close(udp_fd);
|
||||
}
|
||||
}
|
||||
|
||||
void print_usage(const char *prog) {
|
||||
fprintf(stderr, "Usage: %s [-p <port>] -d <destination_dir>\n", prog);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
srand(time(NULL));
|
||||
int port = DEFAULT_PORT;
|
||||
char *dest_dir = NULL;
|
||||
int opt;
|
||||
|
||||
while ((opt = getopt(argc, argv, "p:d:")) != -1) {
|
||||
switch (opt) {
|
||||
case 'p':
|
||||
port = atoi(optarg);
|
||||
break;
|
||||
case 'd':
|
||||
dest_dir = optarg;
|
||||
break;
|
||||
default:
|
||||
print_usage(argv[0]);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
if (!dest_dir) {
|
||||
print_usage(argv[0]);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
struct stat st;
|
||||
if (stat(dest_dir, &st) < 0) {
|
||||
if (mkdir(dest_dir, 0755) < 0) {
|
||||
perror("mkdir dest_dir");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
} else if (!S_ISDIR(st.st_mode)) {
|
||||
fprintf(stderr, "Destination path '%s' is not a directory.\n", dest_dir);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
int server_fd = socket(AF_INET, SOCK_STREAM, 0);
|
||||
if (server_fd < 0) {
|
||||
perror("socket creation failed");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
int optval = 1;
|
||||
if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) < 0) {
|
||||
perror("setsockopt SO_REUSEADDR failed");
|
||||
close(server_fd);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
struct sockaddr_in address;
|
||||
memset(&address, 0, sizeof(address));
|
||||
address.sin_family = AF_INET;
|
||||
address.sin_addr.s_addr = INADDR_ANY;
|
||||
address.sin_port = htons(port);
|
||||
|
||||
if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0) {
|
||||
perror("bind failed");
|
||||
close(server_fd);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (listen(server_fd, 32) < 0) {
|
||||
perror("listen failed");
|
||||
close(server_fd);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
printf("Server listening on port %d, writing to directory: %s\n", port, dest_dir);
|
||||
|
||||
while (1) {
|
||||
struct sockaddr_in client_addr;
|
||||
socklen_t addr_len = sizeof(client_addr);
|
||||
int client_fd = accept(server_fd, (struct sockaddr *)&client_addr, &addr_len);
|
||||
if (client_fd < 0) {
|
||||
if (errno == EINTR) {
|
||||
continue;
|
||||
}
|
||||
perror("accept failed");
|
||||
continue;
|
||||
}
|
||||
|
||||
char client_ip[INET_ADDRSTRLEN];
|
||||
inet_ntop(AF_INET, &client_addr.sin_addr, client_ip, sizeof(client_ip));
|
||||
printf("\nConnection accepted from %s:%d\n", client_ip, ntohs(client_addr.sin_port));
|
||||
|
||||
client_thread_arg_t *ca = malloc(sizeof(client_thread_arg_t));
|
||||
if (!ca) { perror("malloc"); close(client_fd); continue; }
|
||||
ca->client_fd = client_fd;
|
||||
snprintf(ca->dest_dir, sizeof(ca->dest_dir), "%s", dest_dir);
|
||||
|
||||
// TCP tuning for the accepted socket
|
||||
int optval = 1;
|
||||
setsockopt(client_fd, SOL_TCP, TCP_NODELAY, &optval, sizeof(optval));
|
||||
int bufsize = 4 * 1024 * 1024; // 4 MB
|
||||
setsockopt(client_fd, SOL_SOCKET, SO_SNDBUF, &bufsize, sizeof(bufsize));
|
||||
setsockopt(client_fd, SOL_SOCKET, SO_RCVBUF, &bufsize, sizeof(bufsize));
|
||||
|
||||
pthread_t tid;
|
||||
if (pthread_create(&tid, NULL, client_thread, ca) != 0) {
|
||||
perror("pthread_create");
|
||||
close(client_fd);
|
||||
free(ca);
|
||||
} else {
|
||||
pthread_detach(tid); /* fire-and-forget; thread cleans up itself */
|
||||
}
|
||||
}
|
||||
|
||||
close(server_fd);
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
Binary file not shown.
+130
@@ -0,0 +1,130 @@
|
||||
#include "common.h"
|
||||
|
||||
ssize_t readn(int fd, void *vptr, size_t n) {
|
||||
size_t nleft;
|
||||
ssize_t nread;
|
||||
char *ptr;
|
||||
|
||||
ptr = vptr;
|
||||
nleft = n;
|
||||
while (nleft > 0) {
|
||||
if ((nread = read(fd, ptr, nleft)) < 0) {
|
||||
if (errno == EINTR) {
|
||||
nread = 0; /* call read() again */
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
} else if (nread == 0) {
|
||||
break; /* EOF */
|
||||
}
|
||||
nleft -= nread;
|
||||
ptr += nread;
|
||||
}
|
||||
return n - nleft;
|
||||
}
|
||||
|
||||
ssize_t writen(int fd, const void *vptr, size_t n) {
|
||||
size_t nleft;
|
||||
ssize_t nwritten;
|
||||
const char *ptr;
|
||||
|
||||
ptr = vptr;
|
||||
nleft = n;
|
||||
while (nleft > 0) {
|
||||
if ((nwritten = write(fd, ptr, nleft)) <= 0) {
|
||||
if (nwritten < 0 && errno == EINTR)
|
||||
nwritten = 0; /* and call write() again */
|
||||
else
|
||||
return -1; /* error */
|
||||
}
|
||||
nleft -= nwritten;
|
||||
ptr += nwritten;
|
||||
}
|
||||
return n;
|
||||
}
|
||||
|
||||
// ─── Simple path creation ───────────────────────────────────────────────
|
||||
int make_path(const char *path, mode_t mode) {
|
||||
char tmp[2048], *p = NULL;
|
||||
size_t len;
|
||||
|
||||
snprintf(tmp, sizeof(tmp), "%s", path);
|
||||
len = strlen(tmp);
|
||||
if (tmp[len - 1] == '/')
|
||||
tmp[len - 1] = '\0';
|
||||
for (p = tmp + 1; *p; p++)
|
||||
if (*p == '/') {
|
||||
*p = '\0';
|
||||
if (mkdir(tmp, mode) == -1 && errno != EEXIST)
|
||||
return -1;
|
||||
*p = '/';
|
||||
}
|
||||
if (mkdir(tmp, mode) == -1 && errno != EEXIST)
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// ─── Work-Queue (client-side, thread-safe) ───────────────────────────────────
|
||||
|
||||
void wq_init(work_queue_t *q) {
|
||||
q->head = NULL;
|
||||
q->tail = NULL;
|
||||
q->done = 0;
|
||||
q->error = 0;
|
||||
pthread_mutex_init(&q->lock, NULL);
|
||||
pthread_cond_init(&q->cond, NULL);
|
||||
}
|
||||
|
||||
void wq_push(work_queue_t *q, const char *full_path, const char *rel_path, uint64_t file_size, uint64_t checksum) {
|
||||
file_task_t *t = malloc(sizeof(file_task_t));
|
||||
if (!t) { perror("wq_push malloc"); return; }
|
||||
snprintf(t->full_path, sizeof(t->full_path), "%s", full_path);
|
||||
snprintf(t->rel_path, sizeof(t->rel_path), "%s", rel_path);
|
||||
t->file_size = file_size;
|
||||
t->checksum = checksum;
|
||||
t->next = NULL;
|
||||
|
||||
pthread_mutex_lock(&q->lock);
|
||||
if (q->tail) {
|
||||
q->tail->next = t;
|
||||
} else {
|
||||
q->head = t;
|
||||
}
|
||||
q->tail = t;
|
||||
pthread_cond_signal(&q->cond);
|
||||
pthread_mutex_unlock(&q->lock);
|
||||
}
|
||||
|
||||
/* Returns NULL when queue is empty AND done=1 (no more work ever). */
|
||||
file_task_t *wq_pop(work_queue_t *q) {
|
||||
pthread_mutex_lock(&q->lock);
|
||||
while (q->head == NULL && !q->done) {
|
||||
pthread_cond_wait(&q->cond, &q->lock);
|
||||
}
|
||||
file_task_t *t = q->head;
|
||||
if (t) {
|
||||
q->head = t->next;
|
||||
if (!q->head) q->tail = NULL;
|
||||
}
|
||||
pthread_mutex_unlock(&q->lock);
|
||||
return t; /* NULL means done */
|
||||
}
|
||||
|
||||
void wq_finish(work_queue_t *q) {
|
||||
pthread_mutex_lock(&q->lock);
|
||||
q->done = 1;
|
||||
pthread_cond_broadcast(&q->cond); /* wake ALL waiting workers */
|
||||
pthread_mutex_unlock(&q->lock);
|
||||
}
|
||||
|
||||
void wq_destroy(work_queue_t *q) {
|
||||
/* drain any leftover tasks */
|
||||
file_task_t *t = q->head;
|
||||
while (t) {
|
||||
file_task_t *next = t->next;
|
||||
free(t);
|
||||
t = next;
|
||||
}
|
||||
pthread_mutex_destroy(&q->lock);
|
||||
pthread_cond_destroy(&q->cond);
|
||||
}
|
||||
BIN
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|
||||
#ifndef XXHASH_H
|
||||
#define XXHASH_H
|
||||
#include <stdint.h>
|
||||
#include <stddef.h>
|
||||
|
||||
/* xxHash64 — fast 64-bit non-cryptographic hash */
|
||||
uint64_t xxhash64(const void *data, size_t len, uint64_t seed);
|
||||
|
||||
#endif /* XXHASH_H */
|
||||
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@@ -0,0 +1 @@
|
||||
Hello, FastSync!
|
||||
@@ -0,0 +1 @@
|
||||
Nested file data
|
||||
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@@ -0,0 +1 @@
|
||||
Hello, FastSync!
|
||||
@@ -0,0 +1 @@
|
||||
Nested file data
|
||||
Reference in New Issue
Block a user