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lib_get_pathbuffer: Modify size to the maximum value of PATH_MAX and CONFIG_LINE_MAX

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Signed-off-by: zhangshoukui <zhangshoukui@xiaomi.com>
This commit is contained in:
zhangshoukui 2024-12-17 09:46:23 +08:00 committed by archer
parent f8377f8666
commit ebf1ab5392
1 changed files with 10 additions and 4 deletions
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14
libs/libc/misc/lib_pathbuffer.c
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@ -35,6 +35,12 @@
* Pre-processor definitions
****************************************************************************/
#if CONFIG_PATH_MAX > CONFIG_LINE_MAX
# define PATH_MAX_SIZE CONFIG_PATH_MAX
#else
# define PATH_MAX_SIZE CONFIG_LINE_MAX
#endif
/****************************************************************************
* Private Types
****************************************************************************/
@ -42,7 +48,7 @@
struct pathbuffer_s
{
atomic_t free_bitmap; /* Bitmap of free buffer */
char buffer[CONFIG_LIBC_PATHBUFFER_MAX][PATH_MAX];
char buffer[CONFIG_LIBC_PATHBUFFER_MAX][PATH_MAX_SIZE];
};
/****************************************************************************
@ -69,7 +75,7 @@ static struct pathbuffer_s g_pathbuffer =
* The lib_get_pathbuffer() function returns a pointer to a temporary
* buffer. The buffer is allocated from a pool of pre-allocated buffers
* and if the pool is exhausted, a new buffer is allocated through
* kmm_malloc(). The size of the buffer is PATH_MAX, and must freed by
* kmm_malloc(). The size of the buffer is PATH_MAX_SIZE, and must freed by
* calling lib_put_pathbuffer().
*
* Returned Value:
@ -103,7 +109,7 @@ FAR char *lib_get_pathbuffer(void)
*/
#ifdef CONFIG_LIBC_PATHBUFFER_MALLOC
return lib_malloc(PATH_MAX);
return lib_malloc(PATH_MAX_SIZE);
#else
return NULL;
#endif
@ -125,7 +131,7 @@ FAR char *lib_get_pathbuffer(void)
void lib_put_pathbuffer(FAR char *buffer)
{
int index = (buffer - &g_pathbuffer.buffer[0][0]) / PATH_MAX;
int index = (buffer - &g_pathbuffer.buffer[0][0]) / PATH_MAX_SIZE;
if (index >= 0 && index < CONFIG_LIBC_PATHBUFFER_MAX)
{
DEBUGASSERT((atomic_read(&g_pathbuffer.free_bitmap) &