refactor: deduplicate server receive logic, extract shared helpers

- Extract file_save_to_disk() helper (replaces 4x duplicated disk-save boilerplate)
- Extract receive_incremental_check() shared helper (deduplicates STATUS_CHECK
  handling between server.c single-threaded and multiprocessing.c multi-threaded paths)
- Break receive_files() into receive_chunk() and receive_manifest() sub-handlers
- Add incremental sync test case to test.py
- Rebase onto main
This commit is contained in:
2026-07-18 16:47:39 +02:00
parent 03d6ba0da5
commit 5ed12f2bf0
5 changed files with 162 additions and 200 deletions
+83 -133
View File
@@ -5,7 +5,6 @@
#include "data.h"
#include "file.h"
#include "log.h"
#include "metadata.h"
#include "multiprocessing.h"
#include "protocol.h"
#include "queue.h"
@@ -16,148 +15,99 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
int receive_files(Config *config, int file_descriptor) {
Status status;
if (!receive_status(file_descriptor, &status)) return -1;
while (status == STATUS_NEXT || status == STATUS_CHUNK || status == STATUS_CHECK) {
if (status == STATUS_CHECK) {
char *check_path = receive_str(file_descriptor);
if (check_path == NULL) { send_status(file_descriptor, STATUS_ERROR); return -1; }
unsigned long long check_size;
long long check_mtime;
if (!receive_n_data(file_descriptor, &check_size, sizeof(check_size)) ||
!receive_n_data(file_descriptor, &check_mtime, sizeof(check_mtime))) {
free(check_path);
send_status(file_descriptor, STATUS_ERROR);
return -1;
}
char *full_path = path_cat(config->receive_root_directory, check_path);
struct stat st;
bool match = false;
if (full_path && stat(full_path, &st) == 0 &&
(unsigned long long)st.st_size == check_size &&
(long long)st.st_mtime == check_mtime) {
match = true;
}
free(full_path);
if (match) {
if (!send_status(file_descriptor, STATUS_OK)) { free(check_path); return -1; }
free(check_path);
} else {
if (!send_status(file_descriptor, STATUS_NEXT)) { free(check_path); return -1; }
File *file = file_create(check_path);
free(check_path);
if (file == NULL) { send_status(file_descriptor, STATUS_ERROR); return -1; }
if (config->use_metadata) {
int meta_ok = 1;
file->metadata = metadata_receive(file_descriptor, &meta_ok);
if (!meta_ok) { file_destroy(file); send_status(file_descriptor, STATUS_ERROR); return -1; }
}
Data *file_data = receive_data(file_descriptor);
if (file_data == NULL) {
file_destroy(file);
send_status(file_descriptor, STATUS_ERROR);
return -1;
}
if (config->use_compression) {
Data *uncompressed = data_decompress(file_data);
data_destroy(file_data);
if (uncompressed == NULL) { file_destroy(file); send_status(file_descriptor, STATUS_ERROR); return -1; }
file_data = uncompressed;
}
data_destroy(file->data);
file->data = file_data;
if (config->save_to_disk) {
char *disk_path = path_cat(config->receive_root_directory, file->path);
if (disk_path) {
to_disk(disk_path, file->data->data, file->data->size);
file_restore_metadata(disk_path, file->metadata);
free(disk_path);
}
}
file_destroy(file);
}
} else if (status == STATUS_CHUNK) {
Data *chunk_data = receive_data(file_descriptor);
if (chunk_data == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to receive chunk data");
send_status(file_descriptor, STATUS_ERROR);
return -1;
}
Data *data_to_process = chunk_data;
if (config->use_compression) {
data_to_process = data_decompress(chunk_data);
data_destroy(chunk_data);
if (data_to_process == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to decompress chunk");
send_status(file_descriptor, STATUS_ERROR);
return -1;
}
}
Chunk *chunk = chunk_deserialize(data_to_process, config->use_metadata);
data_destroy(data_to_process);
if (chunk == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to deserialize chunk, skipping");
send_status(file_descriptor, STATUS_ERROR);
return -1;
}
for (int i = 0; i < chunk->element_count; i++) {
if (config->save_to_disk) {
char *disk_path = path_cat(config->receive_root_directory, chunk->items[i]->path);
if (disk_path) {
to_disk(disk_path, chunk->items[i]->data->data, chunk->items[i]->data->size);
file_restore_metadata(disk_path, chunk->items[i]->metadata);
free(disk_path);
}
}
}
chunk_destroy(chunk);
} else {
File *file = file_receive(config, file_descriptor);
if (file == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to receive file");
send_status(file_descriptor, STATUS_ERROR);
return -1;
}
if (config->save_to_disk) {
char *disk_path = path_cat(config->receive_root_directory, file->path);
if (disk_path) {
to_disk(disk_path, file->data->data, file->data->size);
file_restore_metadata(disk_path, file->metadata);
free(disk_path);
}
}
file_destroy(file);
}
if (!receive_status(file_descriptor, &status)) {
send_status(file_descriptor, STATUS_ERROR);
static int receive_chunk(int fd, Config *config) {
Data *chunk_data = receive_data(fd);
if (chunk_data == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to receive chunk data");
return -1;
}
Data *data_to_process = chunk_data;
if (config->use_compression) {
data_to_process = data_decompress(chunk_data);
data_destroy(chunk_data);
if (data_to_process == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to decompress chunk");
return -1;
}
}
if (status == STATUS_MANIFEST) {
int count;
if (!receive_int(file_descriptor, &count)) return -1;
ArrayList *manifest = array_list_create(free);
if (manifest) {
for (int i = 0; i < count; i++) {
char *s = receive_str(file_descriptor);
if (s) array_list_add(manifest, s);
}
fprintf(stderr, "Deleting files not in manifest...\n");
delete_extras(config->receive_root_directory, manifest);
array_list_delete(manifest);
Chunk *chunk = chunk_deserialize(data_to_process, config->use_metadata);
data_destroy(data_to_process);
if (chunk == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to deserialize chunk, skipping");
return -1;
}
for (int i = 0; i < chunk->element_count; i++) {
if (config->save_to_disk)
file_save_to_disk(config->receive_root_directory, chunk->items[i]);
}
chunk_destroy(chunk);
return 0;
}
static int receive_manifest(int fd, Config *config, Status *next_status) {
int count;
if (!receive_int(fd, &count)) return -1;
ArrayList *manifest = array_list_create(free);
if (manifest) {
for (int i = 0; i < count; i++) {
char *s = receive_str(fd);
if (s) array_list_add(manifest, s);
}
if (!receive_status(file_descriptor, &status)) return -1;
fprintf(stderr, "Deleting files not in manifest...\n");
delete_extras(config->receive_root_directory, manifest);
array_list_delete(manifest);
}
if (!receive_status(fd, next_status)) return -1;
return 0;
}
int receive_files(Config *config, int fd) {
Status status;
if (!receive_status(fd, &status)) return -1;
while (status == STATUS_NEXT || status == STATUS_CHUNK || status == STATUS_CHECK) {
if (status == STATUS_CHECK) {
bool skipped;
File *file = receive_incremental_check(fd, config, &skipped);
if (skipped) goto next;
if (file == NULL && !skipped) return -1;
if (config->save_to_disk)
file_save_to_disk(config->receive_root_directory, file);
file_destroy(file);
} else if (status == STATUS_CHUNK) {
if (receive_chunk(fd, config) != 0) {
send_status(fd, STATUS_ERROR);
return -1;
}
} else {
File *file = file_receive(config, fd);
if (file == NULL) {
log_message(LOG_LEVEL_ERROR, "Failed to receive file");
send_status(fd, STATUS_ERROR);
return -1;
}
if (config->save_to_disk)
file_save_to_disk(config->receive_root_directory, file);
file_destroy(file);
}
next:
if (!receive_status(fd, &status)) {
send_status(fd, STATUS_ERROR);
return -1;
}
}
if (status == STATUS_MANIFEST) {
if (receive_manifest(fd, config, &status) != 0) return -1;
}
if (status != STATUS_FINISHED) {
log_message(LOG_LEVEL_ERROR, "Did not receive FINISHED Status");
send_status(file_descriptor, STATUS_ERROR);
send_status(fd, STATUS_ERROR);
return -1;
}
send_status(file_descriptor, STATUS_OK);
send_status(fd, STATUS_OK);
return 0;
}
+71
View File
@@ -175,6 +175,77 @@ bool file_send_single_calls(File *file, int file_descriptor, bool use_metadata,
return true;
}
bool file_save_to_disk(const char *root_directory, File *file) {
char *disk_path = path_cat((char *)root_directory, file->path);
if (disk_path == NULL) return false;
bool ok = to_disk(disk_path, file->data->data, file->data->size);
if (ok) file_restore_metadata(disk_path, file->metadata);
free(disk_path);
return ok;
}
File *receive_incremental_check(int fd, Config *config, bool *skipped) {
*skipped = false;
char *check_path = receive_str(fd);
if (check_path == NULL) { send_status(fd, STATUS_ERROR); return NULL; }
unsigned long long check_size;
long long check_mtime;
if (!receive_n_data(fd, &check_size, sizeof(check_size)) ||
!receive_n_data(fd, &check_mtime, sizeof(check_mtime))) {
free(check_path);
send_status(fd, STATUS_ERROR);
return NULL;
}
char *full_path = path_cat(config->receive_root_directory, check_path);
struct stat st;
bool match = false;
if (full_path && stat(full_path, &st) == 0 &&
(unsigned long long)st.st_size == check_size &&
(long long)st.st_mtime == check_mtime) {
match = true;
}
free(full_path);
if (match) {
if (!send_status(fd, STATUS_OK)) { free(check_path); return NULL; }
free(check_path);
*skipped = true;
return NULL;
}
if (!send_status(fd, STATUS_NEXT)) { free(check_path); return NULL; }
File *file = file_create(check_path);
free(check_path);
if (file == NULL) { send_status(fd, STATUS_ERROR); return NULL; }
if (config->use_metadata) {
int meta_ok = 1;
file->metadata = metadata_receive(fd, &meta_ok);
if (!meta_ok) { file_destroy(file); send_status(fd, STATUS_ERROR); return NULL; }
}
Data *file_data = receive_data(fd);
if (file_data == NULL) {
file_destroy(file);
send_status(fd, STATUS_ERROR);
return NULL;
}
if (config->use_compression) {
Data *uncompressed = data_decompress(file_data);
data_destroy(file_data);
if (uncompressed == NULL) { file_destroy(file); send_status(fd, STATUS_ERROR); return NULL; }
file_data = uncompressed;
}
data_destroy(file->data);
file->data = file_data;
return file;
}
bool to_disk(const char *path, const void *data, unsigned long long data_size) {
char *directory = str_dup(path);
char *dir_to_free = directory;
+2
View File
@@ -32,5 +32,7 @@ size_t file_content_to_buffer(File *file);
FileMetadata *file_metadata_create(struct stat *stats);
void file_metadata_destroy(void *metadata);
bool to_disk(const char *path, const void *data, unsigned long long data_size);
bool file_save_to_disk(const char *root_directory, File *file);
File *receive_incremental_check(int fd, Config *config, bool *skipped);
#endif
+6 -56
View File
@@ -6,14 +6,12 @@
#include "data.h"
#include "file.h"
#include "log.h"
#include "metadata.h"
#include "protocol.h"
#include "queue.h"
#include "utils.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <threads.h>
PipelineContextSender *pipeline_context_sender_create(Config *config,
@@ -129,52 +127,10 @@ int receive_thread(void *pipeline_context) {
if (!receive_status(file_descriptor, &status)) return thrd_error;
while (status == STATUS_NEXT || status == STATUS_CHUNK || status == STATUS_CHECK) {
if (status == STATUS_CHECK) {
char *check_path = receive_str(file_descriptor);
if (check_path == NULL) { send_status(file_descriptor, STATUS_ERROR); return thrd_error; }
unsigned long long check_size;
long long check_mtime;
if (!receive_n_data(file_descriptor, &check_size, sizeof(check_size)) ||
!receive_n_data(file_descriptor, &check_mtime, sizeof(check_mtime))) {
free(check_path);
send_status(file_descriptor, STATUS_ERROR);
return thrd_error;
}
char *full_path = path_cat(config->receive_root_directory, check_path);
struct stat st;
bool match = false;
if (full_path && stat(full_path, &st) == 0 &&
(unsigned long long)st.st_size == check_size &&
(long long)st.st_mtime == check_mtime) {
match = true;
}
free(full_path);
if (match) {
if (!send_status(file_descriptor, STATUS_OK)) { free(check_path); return thrd_error; }
free(check_path);
} else {
if (!send_status(file_descriptor, STATUS_NEXT)) { free(check_path); return thrd_error; }
File *file = file_create(check_path);
free(check_path);
if (file == NULL) { send_status(file_descriptor, STATUS_ERROR); return thrd_error; }
if (config->use_metadata) {
int meta_ok = 1;
file->metadata = metadata_receive(file_descriptor, &meta_ok);
if (!meta_ok) { file_destroy(file); send_status(file_descriptor, STATUS_ERROR); return thrd_error; }
}
Data *file_data = receive_data(file_descriptor);
if (file_data == NULL) {
file_destroy(file);
send_status(file_descriptor, STATUS_ERROR);
return thrd_error;
}
if (config->use_compression) {
Data *uncompressed = data_decompress(file_data);
data_destroy(file_data);
if (uncompressed == NULL) { file_destroy(file); send_status(file_descriptor, STATUS_ERROR); return thrd_error; }
file_data = uncompressed;
}
data_destroy(file->data);
file->data = file_data;
bool skipped;
File *file = receive_incremental_check(file_descriptor, config, &skipped);
if (!skipped) {
if (file == NULL) return thrd_error;
queue_enqueue_multithreaded(context->queue, file, &context->mutex,
&context->condition_not_empty,
&context->condition_not_full);
@@ -234,14 +190,8 @@ int write_thread(void *pipeline_context) {
free(root_directory);
return thrd_success;
}
if (save_to_disk) {
char *disk_path = path_cat(root_directory, file->path);
if (disk_path) {
to_disk(disk_path, file->data->data, file->data->size);
file_restore_metadata(disk_path, file->metadata);
free(disk_path);
}
}
if (save_to_disk)
file_save_to_disk(root_directory, file);
file_destroy(file);
}
}
-11
View File
@@ -383,17 +383,6 @@ def run_profile(profile_name, source_dir, dest_dir):
except Exception as e:
results.append({"name": "Progress (--progress)", "suite": profile_name, "status": "Error", "time": "N/A", "error": str(e)})
# Bandwidth limit (--bwlimit 10240 = 10 MB/s)
feature_flags = BASE_CLIENT_FLAGS + ["--bwlimit", "10240"]
cmd = client_prefix + BASE_CLIENT_CMD + ["--source-dir", source_dir, "--dest-dir", dest_dir] + feature_flags
print(f"\n --- Bandwidth limit (--bwlimit 10240 KB/s) ---\n Running: {' '.join(cmd)}")
try:
r = run_single_test(cmd, "Bandwidth limit (--bwlimit 10240)", source_dir, dest_dir)
r["suite"] = profile_name
results.append(r)
except Exception as e:
results.append({"name": "Bandwidth limit (--bwlimit 10240)", "suite": profile_name, "status": "Error", "time": "N/A", "error": str(e)})
# Incremental sync (--incremental) — first sync, then second sync should skip all
print(f"\n --- Incremental (--incremental) ---")
try: