summaryrefslogtreecommitdiff
path: root/lib/sqfs
diff options
context:
space:
mode:
Diffstat (limited to 'lib/sqfs')
-rw-r--r--lib/sqfs/Makemodule.am1
-rw-r--r--lib/sqfs/blk_proc/common.c158
-rw-r--r--lib/sqfs/blk_proc/fragtbl.c28
-rw-r--r--lib/sqfs/blk_proc/internal.h26
-rw-r--r--lib/sqfs/blk_proc/process_block.c31
-rw-r--r--lib/sqfs/blk_proc/pthread.c110
-rw-r--r--lib/sqfs/blk_proc/serial.c39
7 files changed, 208 insertions, 185 deletions
diff --git a/lib/sqfs/Makemodule.am b/lib/sqfs/Makemodule.am
index 28f5a93..7a02fa4 100644
--- a/lib/sqfs/Makemodule.am
+++ b/lib/sqfs/Makemodule.am
@@ -21,6 +21,7 @@ libsquashfs_la_SOURCES += lib/sqfs/inode.c lib/sqfs/blk_proc/fragtbl.c
libsquashfs_la_SOURCES += lib/sqfs/blk_proc/process_block.c lib/sqfs/io.c
libsquashfs_la_SOURCES += lib/sqfs/blk_proc/internal.h lib/sqfs/data_reader.c
libsquashfs_la_SOURCES += lib/sqfs/blk_proc/deduplicate.c
+libsquashfs_la_SOURCES += lib/sqfs/blk_proc/common.c
libsquashfs_la_CPPFLAGS = $(AM_CPPFLAGS)
libsquashfs_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS) $(ZLIB_CFLAGS)
libsquashfs_la_CFLAGS += $(XZ_CFLAGS) $(LZO_CFLAGS) $(LZ4_CFLAGS)
diff --git a/lib/sqfs/blk_proc/common.c b/lib/sqfs/blk_proc/common.c
new file mode 100644
index 0000000..a3c91eb
--- /dev/null
+++ b/lib/sqfs/blk_proc/common.c
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/*
+ * common.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#define SQFS_BUILDING_DLL
+#include "internal.h"
+
+void free_blk_list(sqfs_block_t *list)
+{
+ sqfs_block_t *it;
+
+ while (list != NULL) {
+ it = list;
+ list = list->next;
+ free(it);
+ }
+}
+
+int block_processor_init(sqfs_block_processor_t *proc, size_t max_block_size,
+ sqfs_compressor_t *cmp, unsigned int num_workers,
+ size_t max_backlog, size_t devblksz,
+ sqfs_file_t *file)
+{
+ proc->max_block_size = max_block_size;
+ proc->num_workers = num_workers;
+ proc->max_backlog = max_backlog;
+ proc->devblksz = devblksz;
+ proc->cmp = cmp;
+ proc->file = file;
+ proc->max_blocks = INIT_BLOCK_COUNT;
+ proc->frag_list_max = INIT_BLOCK_COUNT;
+
+ proc->blocks = alloc_array(sizeof(proc->blocks[0]), proc->max_blocks);
+ if (proc->blocks == NULL)
+ return -1;
+
+ proc->frag_list = alloc_array(sizeof(proc->frag_list[0]),
+ proc->frag_list_max);
+ if (proc->frag_list == NULL)
+ return -1;
+
+ return 0;
+}
+
+void block_processor_cleanup(sqfs_block_processor_t *proc)
+{
+ free_blk_list(proc->queue);
+ free_blk_list(proc->done);
+ free(proc->frag_block);
+ free(proc->frag_list);
+ free(proc->fragments);
+ free(proc->blocks);
+ free(proc);
+}
+
+void block_processor_store_done(sqfs_block_processor_t *proc,
+ sqfs_block_t *blk, int status)
+{
+ sqfs_block_t *it = proc->done, *prev = NULL;
+
+ while (it != NULL) {
+ if (it->sequence_number >= blk->sequence_number)
+ break;
+ prev = it;
+ it = it->next;
+ }
+
+ if (prev == NULL) {
+ blk->next = proc->done;
+ proc->done = blk;
+ } else {
+ blk->next = prev->next;
+ prev->next = blk;
+ }
+
+ if (status != 0 && proc->status == 0)
+ proc->status = status;
+
+ proc->backlog -= 1;
+}
+
+sqfs_block_t *block_processor_next_work_item(sqfs_block_processor_t *proc)
+{
+ sqfs_block_t *blk;
+
+ if (proc->status != 0)
+ return NULL;
+
+ blk = proc->queue;
+ proc->queue = blk->next;
+ blk->next = NULL;
+
+ if (proc->queue == NULL)
+ proc->queue_last = NULL;
+
+ return blk;
+}
+
+int block_processor_do_block(sqfs_block_t *block, sqfs_compressor_t *cmp,
+ uint8_t *scratch, size_t scratch_size)
+{
+ ssize_t ret;
+
+ if (block->size == 0) {
+ block->checksum = 0;
+ return 0;
+ }
+
+ block->checksum = crc32(0, block->data, block->size);
+
+ if (block->flags & SQFS_BLK_IS_FRAGMENT)
+ return 0;
+
+ if (!(block->flags & SQFS_BLK_DONT_COMPRESS)) {
+ ret = cmp->do_block(cmp, block->data, block->size,
+ scratch, scratch_size);
+ if (ret < 0)
+ return ret;
+
+ if (ret > 0) {
+ memcpy(block->data, scratch, ret);
+ block->size = ret;
+ block->flags |= SQFS_BLK_IS_COMPRESSED;
+ }
+ }
+
+ return 0;
+}
+
+int sqfs_block_processor_write_fragment_table(sqfs_block_processor_t *proc,
+ sqfs_super_t *super)
+{
+ uint64_t start;
+ size_t size;
+ int ret;
+
+ if (proc->num_fragments == 0) {
+ super->fragment_entry_count = 0;
+ super->fragment_table_start = 0xFFFFFFFFFFFFFFFFUL;
+ super->flags &= ~SQFS_FLAG_ALWAYS_FRAGMENTS;
+ super->flags |= SQFS_FLAG_NO_FRAGMENTS;
+ return 0;
+ }
+
+ size = sizeof(proc->fragments[0]) * proc->num_fragments;
+ ret = sqfs_write_table(proc->file, proc->cmp,
+ proc->fragments, size, &start);
+ if (ret)
+ return ret;
+
+ super->flags &= ~SQFS_FLAG_NO_FRAGMENTS;
+ super->flags |= SQFS_FLAG_ALWAYS_FRAGMENTS;
+ super->fragment_entry_count = proc->num_fragments;
+ super->fragment_table_start = start;
+ return 0;
+}
diff --git a/lib/sqfs/blk_proc/fragtbl.c b/lib/sqfs/blk_proc/fragtbl.c
index 84f5ed6..c8a3397 100644
--- a/lib/sqfs/blk_proc/fragtbl.c
+++ b/lib/sqfs/blk_proc/fragtbl.c
@@ -7,34 +7,6 @@
#define SQFS_BUILDING_DLL
#include "internal.h"
-int sqfs_block_processor_write_fragment_table(sqfs_block_processor_t *proc,
- sqfs_super_t *super)
-{
- uint64_t start;
- size_t size;
- int ret;
-
- if (proc->num_fragments == 0) {
- super->fragment_entry_count = 0;
- super->fragment_table_start = 0xFFFFFFFFFFFFFFFFUL;
- super->flags &= ~SQFS_FLAG_ALWAYS_FRAGMENTS;
- super->flags |= SQFS_FLAG_NO_FRAGMENTS;
- return 0;
- }
-
- size = sizeof(proc->fragments[0]) * proc->num_fragments;
- ret = sqfs_write_table(proc->file, proc->cmp,
- proc->fragments, size, &start);
- if (ret)
- return ret;
-
- super->flags &= ~SQFS_FLAG_NO_FRAGMENTS;
- super->flags |= SQFS_FLAG_ALWAYS_FRAGMENTS;
- super->fragment_entry_count = proc->num_fragments;
- super->fragment_table_start = start;
- return 0;
-}
-
static int grow_fragment_table(sqfs_block_processor_t *proc)
{
size_t newsz;
diff --git a/lib/sqfs/blk_proc/internal.h b/lib/sqfs/blk_proc/internal.h
index 2e9980b..5fdbc3e 100644
--- a/lib/sqfs/blk_proc/internal.h
+++ b/lib/sqfs/blk_proc/internal.h
@@ -64,7 +64,6 @@ struct sqfs_block_processor_t {
sqfs_block_t *queue_last;
sqfs_block_t *done;
- bool terminate;
size_t backlog;
int status;
@@ -105,10 +104,6 @@ struct sqfs_block_processor_t {
#endif
};
-SQFS_INTERNAL
-int sqfs_block_process(sqfs_block_t *block, sqfs_compressor_t *cmp,
- uint8_t *scratch, size_t scratch_size);
-
SQFS_INTERNAL int process_completed_block(sqfs_block_processor_t *proc,
sqfs_block_t *block);
@@ -123,4 +118,25 @@ SQFS_INTERNAL int store_block_location(sqfs_block_processor_t *proc,
uint64_t offset, uint32_t size,
uint32_t chksum);
+SQFS_INTERNAL void free_blk_list(sqfs_block_t *list);
+
+SQFS_INTERNAL
+int block_processor_init(sqfs_block_processor_t *proc, size_t max_block_size,
+ sqfs_compressor_t *cmp, unsigned int num_workers,
+ size_t max_backlog, size_t devblksz,
+ sqfs_file_t *file);
+
+SQFS_INTERNAL void block_processor_cleanup(sqfs_block_processor_t *proc);
+
+SQFS_INTERNAL
+void block_processor_store_done(sqfs_block_processor_t *proc,
+ sqfs_block_t *blk, int status);
+
+SQFS_INTERNAL
+sqfs_block_t *block_processor_next_work_item(sqfs_block_processor_t *proc);
+
+SQFS_INTERNAL
+int block_processor_do_block(sqfs_block_t *block, sqfs_compressor_t *cmp,
+ uint8_t *scratch, size_t scratch_size);
+
#endif /* INTERNAL_H */
diff --git a/lib/sqfs/blk_proc/process_block.c b/lib/sqfs/blk_proc/process_block.c
index f154a14..2951406 100644
--- a/lib/sqfs/blk_proc/process_block.c
+++ b/lib/sqfs/blk_proc/process_block.c
@@ -9,37 +9,6 @@
#include <string.h>
-int sqfs_block_process(sqfs_block_t *block, sqfs_compressor_t *cmp,
- uint8_t *scratch, size_t scratch_size)
-{
- ssize_t ret;
-
- if (block->size == 0) {
- block->checksum = 0;
- return 0;
- }
-
- block->checksum = crc32(0, block->data, block->size);
-
- if (block->flags & SQFS_BLK_IS_FRAGMENT)
- return 0;
-
- if (!(block->flags & SQFS_BLK_DONT_COMPRESS)) {
- ret = cmp->do_block(cmp, block->data, block->size,
- scratch, scratch_size);
- if (ret < 0)
- return ret;
-
- if (ret > 0) {
- memcpy(block->data, scratch, ret);
- block->size = ret;
- block->flags |= SQFS_BLK_IS_COMPRESSED;
- }
- }
-
- return 0;
-}
-
static int allign_file(sqfs_block_processor_t *proc, sqfs_block_t *blk)
{
if (!(blk->flags & SQFS_BLK_ALLIGN))
diff --git a/lib/sqfs/blk_proc/pthread.c b/lib/sqfs/blk_proc/pthread.c
index 1c1088a..57b61c1 100644
--- a/lib/sqfs/blk_proc/pthread.c
+++ b/lib/sqfs/blk_proc/pthread.c
@@ -7,65 +7,6 @@
#define SQFS_BUILDING_DLL
#include "internal.h"
-static void free_blk_list(sqfs_block_t *list)
-{
- sqfs_block_t *it;
-
- while (list != NULL) {
- it = list;
- list = list->next;
- free(it);
- }
-}
-
-static void store_completed_block(sqfs_block_processor_t *proc,
- sqfs_block_t *blk, int status)
-{
- sqfs_block_t *it = proc->done, *prev = NULL;
-
- while (it != NULL) {
- if (it->sequence_number >= blk->sequence_number)
- break;
- prev = it;
- it = it->next;
- }
-
- if (prev == NULL) {
- blk->next = proc->done;
- proc->done = blk;
- } else {
- blk->next = prev->next;
- prev->next = blk;
- }
-
- if (status != 0 && proc->status == 0)
- proc->status = status;
-
- proc->backlog -= 1;
- pthread_cond_broadcast(&proc->done_cond);
-}
-
-static sqfs_block_t *get_next_work_item(sqfs_block_processor_t *proc)
-{
- sqfs_block_t *blk;
-
- while (proc->queue == NULL) {
- if (proc->terminate || proc->status != 0)
- return NULL;
-
- pthread_cond_wait(&proc->queue_cond, &proc->mtx);
- }
-
- blk = proc->queue;
- proc->queue = blk->next;
- blk->next = NULL;
-
- if (proc->queue == NULL)
- proc->queue_last = NULL;
-
- return blk;
-}
-
static void *worker_proc(void *arg)
{
compress_worker_t *worker = arg;
@@ -75,17 +16,23 @@ static void *worker_proc(void *arg)
for (;;) {
pthread_mutex_lock(&shared->mtx);
- if (blk != NULL)
- store_completed_block(shared, blk, status);
+ if (blk != NULL) {
+ block_processor_store_done(shared, blk, status);
+ pthread_cond_broadcast(&shared->done_cond);
+ }
+
+ while (shared->queue == NULL && shared->status == 0)
+ pthread_cond_wait(&shared->queue_cond, &shared->mtx);
- blk = get_next_work_item(shared);
+ blk = block_processor_next_work_item(shared);
pthread_mutex_unlock(&shared->mtx);
if (blk == NULL)
break;
- status = sqfs_block_process(blk, worker->cmp, worker->scratch,
- shared->max_block_size);
+ status = block_processor_do_block(blk, worker->cmp,
+ worker->scratch,
+ shared->max_block_size);
}
return NULL;
}
@@ -109,26 +56,14 @@ sqfs_block_processor_t *sqfs_block_processor_create(size_t max_block_size,
if (proc == NULL)
return NULL;
- proc->max_block_size = max_block_size;
- proc->num_workers = num_workers;
- proc->max_backlog = max_backlog;
proc->mtx = (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER;
proc->queue_cond = (pthread_cond_t)PTHREAD_COND_INITIALIZER;
proc->done_cond = (pthread_cond_t)PTHREAD_COND_INITIALIZER;
- proc->devblksz = devblksz;
- proc->cmp = cmp;
- proc->file = file;
- proc->max_blocks = INIT_BLOCK_COUNT;
- proc->frag_list_max = INIT_BLOCK_COUNT;
-
- proc->blocks = alloc_array(sizeof(proc->blocks[0]), proc->max_blocks);
- if (proc->blocks == NULL)
- goto fail_init;
- proc->frag_list = alloc_array(sizeof(proc->frag_list[0]),
- proc->frag_list_max);
- if (proc->frag_list == NULL)
+ if (block_processor_init(proc, max_block_size, cmp, num_workers,
+ max_backlog, devblksz, file)) {
goto fail_init;
+ }
for (i = 0; i < num_workers; ++i) {
proc->workers[i] = alloc_flex(sizeof(compress_worker_t),
@@ -155,7 +90,7 @@ sqfs_block_processor_t *sqfs_block_processor_create(size_t max_block_size,
return proc;
fail_thread:
pthread_mutex_lock(&proc->mtx);
- proc->terminate = true;
+ proc->status = -1;
pthread_cond_broadcast(&proc->queue_cond);
pthread_mutex_unlock(&proc->mtx);
@@ -178,10 +113,7 @@ fail_init:
pthread_cond_destroy(&proc->done_cond);
pthread_cond_destroy(&proc->queue_cond);
pthread_mutex_destroy(&proc->mtx);
- free(proc->frag_list);
- free(proc->fragments);
- free(proc->blocks);
- free(proc);
+ block_processor_cleanup(proc);
return NULL;
}
@@ -190,7 +122,7 @@ void sqfs_block_processor_destroy(sqfs_block_processor_t *proc)
unsigned int i;
pthread_mutex_lock(&proc->mtx);
- proc->terminate = true;
+ proc->status = -1;
pthread_cond_broadcast(&proc->queue_cond);
pthread_mutex_unlock(&proc->mtx);
@@ -205,13 +137,7 @@ void sqfs_block_processor_destroy(sqfs_block_processor_t *proc)
pthread_cond_destroy(&proc->queue_cond);
pthread_mutex_destroy(&proc->mtx);
- free_blk_list(proc->queue);
- free_blk_list(proc->done);
- free(proc->frag_block);
- free(proc->frag_list);
- free(proc->fragments);
- free(proc->blocks);
- free(proc);
+ block_processor_cleanup(proc);
}
static void append_to_work_queue(sqfs_block_processor_t *proc,
diff --git a/lib/sqfs/blk_proc/serial.c b/lib/sqfs/blk_proc/serial.c
index c7ec366..67272a3 100644
--- a/lib/sqfs/blk_proc/serial.c
+++ b/lib/sqfs/blk_proc/serial.c
@@ -15,32 +15,15 @@ sqfs_block_processor_t *sqfs_block_processor_create(size_t max_block_size,
sqfs_file_t *file)
{
sqfs_block_processor_t *proc;
- (void)num_workers;
- (void)max_backlog;
proc = alloc_flex(sizeof(*proc), 1, max_block_size);
if (proc == NULL)
return NULL;
- proc->max_block_size = max_block_size;
- proc->cmp = cmp;
- proc->devblksz = devblksz;
- proc->file = file;
- proc->max_blocks = INIT_BLOCK_COUNT;
- proc->frag_list_max = INIT_BLOCK_COUNT;
-
- proc->blocks = alloc_array(sizeof(proc->blocks[0]), proc->max_blocks);
- if (proc->blocks == NULL) {
- free(proc);
- return NULL;
- }
-
- proc->frag_list = alloc_array(sizeof(proc->frag_list[0]),
- proc->frag_list_max);
- if (proc->frag_list == NULL) {
- free(proc->blocks);
- free(proc);
+ if (block_processor_init(proc, max_block_size, cmp, num_workers,
+ max_backlog, devblksz, file)) {
+ block_processor_cleanup(proc);
return NULL;
}
@@ -49,11 +32,7 @@ sqfs_block_processor_t *sqfs_block_processor_create(size_t max_block_size,
void sqfs_block_processor_destroy(sqfs_block_processor_t *proc)
{
- free(proc->frag_block);
- free(proc->frag_list);
- free(proc->fragments);
- free(proc->blocks);
- free(proc);
+ block_processor_cleanup(proc);
}
int sqfs_block_processor_enqueue(sqfs_block_processor_t *proc,
@@ -89,8 +68,9 @@ int sqfs_block_processor_enqueue(sqfs_block_processor_t *proc,
block = fragblk;
}
- proc->status = sqfs_block_process(block, proc->cmp, proc->scratch,
- proc->max_block_size);
+ proc->status = block_processor_do_block(block, proc->cmp,
+ proc->scratch,
+ proc->max_block_size);
if (proc->status == 0)
proc->status = process_completed_block(proc, block);
@@ -104,8 +84,9 @@ int sqfs_block_processor_finish(sqfs_block_processor_t *proc)
if (proc->status != 0 || proc->frag_block == NULL)
return proc->status;
- proc->status = sqfs_block_process(proc->frag_block, proc->cmp,
- proc->scratch, proc->max_block_size);
+ proc->status = block_processor_do_block(proc->frag_block, proc->cmp,
+ proc->scratch,
+ proc->max_block_size);
if (proc->status == 0)
proc->status = process_completed_block(proc, proc->frag_block);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 19:57:22 +0000