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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2021-03-06 17:34:51 +0100
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2021-03-06 22:08:36 +0100
commit34d2755572b1a6ae73e4143a5b4f97c8ab3d0b0f (patch)
tree07a02abd6fb6b65d4511ff4fdc87b983300eb3a7 /lib
parentbcc2f6150cdbef1e11c8716b9ca2add0c272394b (diff)
Cleanup: repalce ad-hoc dynamic array used for export table
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib')
-rw-r--r--lib/sqfs/dir_writer.c63
1 files changed, 22 insertions, 41 deletions
diff --git a/lib/sqfs/dir_writer.c b/lib/sqfs/dir_writer.c
index bb3e867..e425b41 100644
--- a/lib/sqfs/dir_writer.c
+++ b/lib/sqfs/dir_writer.c
@@ -15,6 +15,7 @@
#include "sqfs/error.h"
#include "sqfs/block.h"
#include "sqfs/dir.h"
+#include "array.h"
#include "util.h"
#include <stdlib.h>
@@ -50,9 +51,7 @@ struct sqfs_dir_writer_t {
size_t ent_count;
sqfs_meta_writer_t *dm;
- sqfs_u64 *export_tbl;
- size_t export_tbl_max;
- size_t export_tbl_count;
+ array_t export_tbl;
};
static int get_type(sqfs_u16 mode)
@@ -97,44 +96,29 @@ static void writer_reset(sqfs_dir_writer_t *writer)
static int add_export_table_entry(sqfs_dir_writer_t *writer,
sqfs_u32 inum, sqfs_u64 iref)
{
- size_t i, new_max;
- sqfs_u64 *new;
+ sqfs_u64 *ptr;
+ int ret;
- if (writer->export_tbl == NULL)
+ if (writer->export_tbl.data == NULL)
return 0;
if (inum < 1)
return SQFS_ERROR_ARG_INVALID;
- new_max = writer->export_tbl_max;
-
- while ((inum - 1) >= new_max) {
- if (SZ_MUL_OV(new_max, 2, &new_max))
- return SQFS_ERROR_ALLOC;
- }
-
- if (new_max > writer->export_tbl_max) {
- if (SZ_MUL_OV(new_max, sizeof(writer->export_tbl[0]), &new_max))
- return SQFS_ERROR_ALLOC;
-
- new = realloc(writer->export_tbl, new_max);
- if (new == NULL)
- return SQFS_ERROR_ALLOC;
+ ret = array_set_capacity(&writer->export_tbl, inum);
+ if (ret != 0)
+ return ret;
- new_max /= sizeof(writer->export_tbl[0]);
+ ptr = (sqfs_u64 *)writer->export_tbl.data;
- for (i = writer->export_tbl_max; i < new_max; ++i)
- new[i] = 0xFFFFFFFFFFFFFFFFUL;
+ if ((inum - 1) >= writer->export_tbl.used) {
+ memset(ptr + writer->export_tbl.used, 0xFF,
+ (inum - writer->export_tbl.used) * sizeof(*ptr));
- writer->export_tbl = new;
- writer->export_tbl_max = new_max;
+ writer->export_tbl.used = inum;
}
- writer->export_tbl[inum - 1] = iref;
-
- if ((inum - 1) >= writer->export_tbl_count)
- writer->export_tbl_count = inum;
-
+ ptr[inum - 1] = iref;
return 0;
}
@@ -143,7 +127,7 @@ static void dir_writer_destroy(sqfs_object_t *obj)
sqfs_dir_writer_t *writer = (sqfs_dir_writer_t *)obj;
writer_reset(writer);
- free(writer->export_tbl);
+ array_cleanup(&writer->export_tbl);
free(writer);
}
@@ -160,17 +144,13 @@ sqfs_dir_writer_t *sqfs_dir_writer_create(sqfs_meta_writer_t *dm,
return NULL;
if (flags & SQFS_DIR_WRITER_CREATE_EXPORT_TABLE) {
- writer->export_tbl_max = 512;
-
- writer->export_tbl = calloc(sizeof(writer->export_tbl[0]),
- writer->export_tbl_max);
- if (writer->export_tbl == NULL) {
+ if (array_init(&writer->export_tbl, sizeof(sqfs_u64), 512)) {
free(writer);
return NULL;
}
- memset(writer->export_tbl, 0xFF,
- sizeof(writer->export_tbl[0]) * writer->export_tbl_max);
+ memset(writer->export_tbl.data, 0xFF,
+ writer->export_tbl.size * writer->export_tbl.count);
}
((sqfs_object_t *)writer)->destroy = dir_writer_destroy;
@@ -455,12 +435,13 @@ int sqfs_dir_writer_write_export_table(sqfs_dir_writer_t *writer,
if (ret)
return 0;
- if (writer->export_tbl_count == 0)
+ if (writer->export_tbl.data == NULL)
return 0;
- size = sizeof(writer->export_tbl[0]) * writer->export_tbl_count;
+ size = writer->export_tbl.size * writer->export_tbl.used;
- ret = sqfs_write_table(file, cmp, writer->export_tbl, size, &start);
+ ret = sqfs_write_table(file, cmp, writer->export_tbl.data,
+ size, &start);
if (ret)
return ret;