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-rw-r--r--lib/sqfs/Makemodule.am1
-rw-r--r--lib/sqfs/xattr/xattr_writer.c65
-rw-r--r--lib/sqfs/xattr/xattr_writer.h5
-rw-r--r--lib/sqfs/xattr/xattr_writer_flush.c4
-rw-r--r--lib/sqfs/xattr/xattr_writer_record.c60
5 files changed, 72 insertions, 63 deletions
diff --git a/lib/sqfs/Makemodule.am b/lib/sqfs/Makemodule.am
index fedb7a8..7dafd8e 100644
--- a/lib/sqfs/Makemodule.am
+++ b/lib/sqfs/Makemodule.am
@@ -41,6 +41,7 @@ libsquashfs_la_LIBADD += $(ZSTD_LIBS) $(PTHREAD_LIBS)
libsquashfs_la_SOURCES += lib/util/str_table.c lib/util/alloc.c
libsquashfs_la_SOURCES += lib/util/xxhash.c
libsquashfs_la_SOURCES += lib/util/hash_table.c include/hash_table.h
+libsquashfs_la_SOURCES += lib/util/rbtree.c include/rbtree.h
if WINDOWS
libsquashfs_la_SOURCES += lib/sqfs/win32/io_file.c
diff --git a/lib/sqfs/xattr/xattr_writer.c b/lib/sqfs/xattr/xattr_writer.c
index c04bd4a..d23e063 100644
--- a/lib/sqfs/xattr/xattr_writer.c
+++ b/lib/sqfs/xattr/xattr_writer.c
@@ -9,8 +9,8 @@
static sqfs_object_t *xattr_writer_copy(const sqfs_object_t *obj)
{
const sqfs_xattr_writer_t *xwr = (const sqfs_xattr_writer_t *)obj;
- kv_block_desc_t *blk, *it, **next;
sqfs_xattr_writer_t *copy;
+ kv_block_desc_t *it;
copy = calloc(1, sizeof(*copy));
if (copy == NULL)
@@ -34,27 +34,26 @@ static sqfs_object_t *xattr_writer_copy(const sqfs_object_t *obj)
memcpy(copy->kv_pairs, xwr->kv_pairs,
sizeof(copy->kv_pairs[0]) * xwr->num_pairs);
- next = &(copy->kv_blocks);
+ if (rbtree_copy(&xwr->kv_block_tree, &copy->kv_block_tree) != 0)
+ goto fail_tree;
- for (it = xwr->kv_blocks; it != NULL; it = it->next) {
- blk = malloc(sizeof(*blk));
- if (blk == NULL)
- goto fail_blk;
+ for (it = xwr->kv_block_first; it != NULL; it = it->next) {
+ rbtree_node_t *n = rbtree_lookup(&copy->kv_block_tree, it);
- memcpy(blk, it, sizeof(*it));
- blk->next = NULL;
+ if (copy->kv_block_last == NULL) {
+ copy->kv_block_first = rbtree_node_key(n);
+ copy->kv_block_last = copy->kv_block_first;
+ } else {
+ copy->kv_block_last->next = rbtree_node_key(n);
+ copy->kv_block_last = copy->kv_block_last->next;
+ }
- *next = blk;
- next = &(blk->next);
+ copy->kv_block_last->next = NULL;
}
return (sqfs_object_t *)copy;
-fail_blk:
- while (copy->kv_blocks != NULL) {
- blk = copy->kv_blocks;
- copy->kv_blocks = copy->kv_blocks->next;
- free(blk);
- }
+fail_tree:
+ free(copy->kv_pairs);
fail_pairs:
str_table_cleanup(&copy->values);
fail_values:
@@ -67,20 +66,31 @@ fail_keys:
static void xattr_writer_destroy(sqfs_object_t *obj)
{
sqfs_xattr_writer_t *xwr = (sqfs_xattr_writer_t *)obj;
- kv_block_desc_t *blk;
-
- while (xwr->kv_blocks != NULL) {
- blk = xwr->kv_blocks;
- xwr->kv_blocks = xwr->kv_blocks->next;
- free(blk);
- }
+ rbtree_cleanup(&xwr->kv_block_tree);
free(xwr->kv_pairs);
str_table_cleanup(&xwr->values);
str_table_cleanup(&xwr->keys);
free(xwr);
}
+static int block_compare(const void *context,
+ const void *lhs, const void *rhs)
+{
+ const sqfs_xattr_writer_t *xwr = context;
+ const kv_block_desc_t *l = lhs, *r = rhs;
+
+ if (l->count != r->count)
+ return l->count < r->count ? -1 : 1;
+
+ if (l->start == r->start)
+ return 0;
+
+ return memcmp(xwr->kv_pairs + l->start,
+ xwr->kv_pairs + r->start,
+ l->count * sizeof(xwr->kv_pairs[0]));
+}
+
sqfs_xattr_writer_t *sqfs_xattr_writer_create(sqfs_u32 flags)
{
sqfs_xattr_writer_t *xwr;
@@ -104,9 +114,18 @@ sqfs_xattr_writer_t *sqfs_xattr_writer_create(sqfs_u32 flags)
if (xwr->kv_pairs == NULL)
goto fail_pairs;
+ if (rbtree_init(&xwr->kv_block_tree, sizeof(kv_block_desc_t),
+ sizeof(sqfs_u32), block_compare)) {
+ goto fail_tree;
+ }
+
+ xwr->kv_block_tree.key_context = xwr;
+
((sqfs_object_t *)xwr)->copy = xattr_writer_copy;
((sqfs_object_t *)xwr)->destroy = xattr_writer_destroy;
return xwr;
+fail_tree:
+ free(xwr->kv_pairs);
fail_pairs:
str_table_cleanup(&xwr->values);
fail_values:
diff --git a/lib/sqfs/xattr/xattr_writer.h b/lib/sqfs/xattr/xattr_writer.h
index 826b6f6..8ff9691 100644
--- a/lib/sqfs/xattr/xattr_writer.h
+++ b/lib/sqfs/xattr/xattr_writer.h
@@ -19,6 +19,7 @@
#include "sqfs/io.h"
#include "str_table.h"
+#include "rbtree.h"
#include "util.h"
#include <stdlib.h>
@@ -56,7 +57,9 @@ struct sqfs_xattr_writer_t {
size_t kv_start;
- kv_block_desc_t *kv_blocks;
+ rbtree_t kv_block_tree;
+ kv_block_desc_t *kv_block_first;
+ kv_block_desc_t *kv_block_last;
size_t num_blocks;
};
diff --git a/lib/sqfs/xattr/xattr_writer_flush.c b/lib/sqfs/xattr/xattr_writer_flush.c
index 53c3187..92f9be3 100644
--- a/lib/sqfs/xattr/xattr_writer_flush.c
+++ b/lib/sqfs/xattr/xattr_writer_flush.c
@@ -207,7 +207,7 @@ static int write_kv_pairs(const sqfs_xattr_writer_t *xwr,
for (i = 0; i < xwr->values.num_strings; ++i)
ool_locations[i] = 0xFFFFFFFFFFFFFFFFUL;
- for (blk = xwr->kv_blocks; blk != NULL; blk = blk->next) {
+ for (blk = xwr->kv_block_first; blk != NULL; blk = blk->next) {
sqfs_meta_writer_get_position(mw, &block, &offset);
blk->start_ref = (block << 16) | (offset & 0xFFFF);
@@ -237,7 +237,7 @@ static int write_id_table(const sqfs_xattr_writer_t *xwr,
locations[i++] = 0;
- for (blk = xwr->kv_blocks; blk != NULL; blk = blk->next) {
+ for (blk = xwr->kv_block_first; blk != NULL; blk = blk->next) {
memset(&id_ent, 0, sizeof(id_ent));
id_ent.xattr = htole64(blk->start_ref);
id_ent.count = htole32(blk->count);
diff --git a/lib/sqfs/xattr/xattr_writer_record.c b/lib/sqfs/xattr/xattr_writer_record.c
index aa87246..510ca17 100644
--- a/lib/sqfs/xattr/xattr_writer_record.c
+++ b/lib/sqfs/xattr/xattr_writer_record.c
@@ -114,59 +114,45 @@ int sqfs_xattr_writer_add(sqfs_xattr_writer_t *xwr, const char *key,
int sqfs_xattr_writer_end(sqfs_xattr_writer_t *xwr, sqfs_u32 *out)
{
- kv_block_desc_t *blk, *blk_prev;
+ kv_block_desc_t blk;
+ rbtree_node_t *n;
sqfs_u32 index;
- size_t count;
int ret;
- count = xwr->num_pairs - xwr->kv_start;
- if (count == 0) {
+ memset(&blk, 0, sizeof(blk));
+ blk.start = xwr->kv_start;
+ blk.count = xwr->num_pairs - xwr->kv_start;
+
+ if (blk.count == 0) {
*out = 0xFFFFFFFF;
return 0;
}
- qsort(xwr->kv_pairs + xwr->kv_start, count,
+ qsort(xwr->kv_pairs + blk.start, blk.count,
sizeof(xwr->kv_pairs[0]), compare_u64);
- blk_prev = NULL;
- blk = xwr->kv_blocks;
- index = 0;
-
- while (blk != NULL) {
- if (blk->count == count) {
- ret = memcmp(xwr->kv_pairs + blk->start,
- xwr->kv_pairs + xwr->kv_start,
- sizeof(xwr->kv_pairs[0]) * count);
-
- if (ret == 0)
- break;
- }
+ n = rbtree_lookup(&xwr->kv_block_tree, &blk);
- if (index == 0xFFFFFFFF)
- return SQFS_ERROR_OVERFLOW;
-
- ++index;
- blk_prev = blk;
- blk = blk->next;
- }
-
- if (blk != NULL) {
+ if (n != NULL) {
+ index = *((sqfs_u32 *)rbtree_node_value(n));
xwr->num_pairs = xwr->kv_start;
} else {
- blk = calloc(1, sizeof(*blk));
- if (blk == NULL)
- return SQFS_ERROR_ALLOC;
+ index = xwr->num_blocks;
+
+ ret = rbtree_insert(&xwr->kv_block_tree, &blk, &index);
+ if (ret != 0)
+ return ret;
- blk->start = xwr->kv_start;
- blk->count = count;
+ xwr->num_blocks += 1;
+ n = rbtree_lookup(&xwr->kv_block_tree, &blk);
- if (blk_prev == NULL) {
- xwr->kv_blocks = blk;
+ if (xwr->kv_block_last == NULL) {
+ xwr->kv_block_first = rbtree_node_key(n);
+ xwr->kv_block_last = xwr->kv_block_first;
} else {
- blk_prev->next = blk;
+ xwr->kv_block_last->next = rbtree_node_key(n);
+ xwr->kv_block_last = xwr->kv_block_last->next;
}
-
- xwr->num_blocks += 1;
}
*out = index;