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Code Issues Releases Wiki Activity

reserach st: refine key.c

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This commit is contained in:
winlin 2014-11-06 13:17:54 +08:00
parent fd0c85b324
commit c38a545780
1 changed files with 37 additions and 36 deletions
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73
trunk/research/st/key.c
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@ -56,51 +56,52 @@ static int key_max = 0;
*/
int st_key_create(int *keyp, _st_destructor_t destructor)
{
if (key_max >= ST_KEYS_MAX) {
errno = EAGAIN;
return -1;
}
*keyp = key_max++;
_st_destructors[*keyp] = destructor;
return 0;
if (key_max >= ST_KEYS_MAX) {
errno = EAGAIN;
return -1;
}
*keyp = key_max++;
_st_destructors[*keyp] = destructor;
return 0;
}
int st_key_getlimit(void)
{
return ST_KEYS_MAX;
return ST_KEYS_MAX;
}
int st_thread_setspecific(int key, void *value)
{
_st_thread_t *me = _ST_CURRENT_THREAD();
if (key < 0 || key >= key_max) {
errno = EINVAL;
return -1;
}
if (value != me->private_data[key]) {
/* free up previously set non-NULL data value */
if (me->private_data[key] && _st_destructors[key]) {
(*_st_destructors[key])(me->private_data[key]);
_st_thread_t *me = _ST_CURRENT_THREAD();
if (key < 0 || key >= key_max) {
errno = EINVAL;
return -1;
}
me->private_data[key] = value;
}
return 0;
if (value != me->private_data[key]) {
/* free up previously set non-NULL data value */
if (me->private_data[key] && _st_destructors[key]) {
(*_st_destructors[key])(me->private_data[key]);
}
me->private_data[key] = value;
}
return 0;
}
void *st_thread_getspecific(int key)
{
if (key < 0 || key >= key_max)
return NULL;
return ((_ST_CURRENT_THREAD())->private_data[key]);
if (key < 0 || key >= key_max) {
return NULL;
}
return ((_ST_CURRENT_THREAD())->private_data[key]);
}
@ -109,13 +110,13 @@ void *st_thread_getspecific(int key)
*/
void _st_thread_cleanup(_st_thread_t *thread)
{
int key;
for (key = 0; key < key_max; key++) {
if (thread->private_data[key] && _st_destructors[key]) {
(*_st_destructors[key])(thread->private_data[key]);
thread->private_data[key] = NULL;
int key;
for (key = 0; key < key_max; key++) {
if (thread->private_data[key] && _st_destructors[key]) {
(*_st_destructors[key])(thread->private_data[key]);
thread->private_data[key] = NULL;
}
}
}
}