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Sync with libX11/src/UIThrStubs: fix __pthread_once_stub()

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This commit is contained in:
matthieu 2011-09-19 20:23:44 +00:00
parent f476ec5831
commit 590161e69d
1 changed files with 30 additions and 9 deletions
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37
lib/libpthread-stubs/stubs.c
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@ -228,15 +228,38 @@ static void __pthread_exit_stub(void *ret)
#endif
#ifdef NEED_ONCE_STUB
#include <errno.h>
#define PTHREAD_ONCE_KEYS_CHUNK 100
static void**__pthread_once_keys = NULL;
static unsigned int __pthread_once_last_key = 0;
static int
__pthread_once_stub(void *id, void (*routine)(void))
{
static int done = 0;
void **tmp;
unsigned int i;
if (!done) {
routine();
done++;
/* look for the id */
for (i = 0; i < __pthread_once_last_key; i++)
if (__pthread_once_keys[i] == id)
return 0;
/* allocate more room if needed */
if ((__pthread_once_last_key % PTHREAD_ONCE_KEYS_CHUNK) == 0) {
tmp = realloc(__pthread_once_keys,
(__pthread_once_last_key
+ PTHREAD_ONCE_KEYS_CHUNK)*sizeof(void *));
if (tmp == NULL)
return ENOMEM;
for (i = 0; i < PTHREAD_ONCE_KEYS_CHUNK; i++)
tmp[__pthread_once_last_key + i] = NULL;
__pthread_once_keys = tmp;
}
/* call the routine */
routine();
/* Mark it */
__pthread_once_keys[__pthread_once_last_key++] = id;
return 0;
}
#endif
@ -258,12 +281,10 @@ __pthread_key_create_stub(unsigned int *key, void (*destructor)(void *))
if ((__pthread_last_key % _PTHREAD_KEYS_CHUNK) == 0) {
tmp = realloc(__pthread_keys,
(__pthread_last_key + _PTHREAD_KEYS_CHUNK)*sizeof(void *));
if (tmp == NULL) {
free(__pthread_keys);
if (tmp == NULL)
return ENOMEM;
}
for (i = 0; i < _PTHREAD_KEYS_CHUNK; i++)
tmp[__pthread_last_key + i] = 0;
tmp[__pthread_last_key + i] = NULL;
__pthread_keys = tmp;
}
*key = __pthread_last_key++;