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omit pthread tsd dtor code if tsd is not used

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This commit is contained in:
Rich Felker
2011-04-03 02:33:50 -04:00
parent 8de03e1a90
commit fd80cfa00b
2 changed files with 24 additions and 14 deletions
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19
src/thread/pthread_key_create.c
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@ -3,13 +3,14 @@
const size_t __pthread_tsd_size = sizeof(void *) * PTHREAD_KEYS_MAX;
void *__pthread_tsd_main[PTHREAD_KEYS_MAX] = { 0 };
static void (*keys[PTHREAD_KEYS_MAX])(void *);
static void nodtor(void *dummy)
{
}
int pthread_key_create(pthread_key_t *k, void (*dtor)(void *))
{
static void (*keys[PTHREAD_KEYS_MAX])(void *);
unsigned i = (uintptr_t)&k / 16 % PTHREAD_KEYS_MAX;
unsigned j = i;
@ -24,3 +25,19 @@ int pthread_key_create(pthread_key_t *k, void (*dtor)(void *))
} while ((j=(j+1)%PTHREAD_KEYS_MAX) != i);
return EAGAIN;
}
void __pthread_tsd_run_dtors(pthread_t self)
{
int i, j, not_finished = self->tsd_used;
for (j=0; not_finished && j<PTHREAD_DESTRUCTOR_ITERATIONS; j++) {
not_finished = 0;
for (i=0; i<PTHREAD_KEYS_MAX; i++) {
if (self->tsd[i] && keys[i]) {
void *tmp = self->tsd[i];
self->tsd[i] = 0;
keys[i](tmp);
not_finished = 1;
}
}
}
}