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| | #include "pthread_impl.h"
static void (*keys[PTHREAD_KEYS_MAX])(void *);
static void nodtor(void *dummy)
{
}
int pthread_key_create(pthread_key_t *k, void (*dtor)(void *))
{
unsigned i = (uintptr_t)&k / 16 % PTHREAD_KEYS_MAX;
unsigned j = i;
__pthread_self_init();
if (!dtor) dtor = nodtor;
do {
if (!a_cas_p(keys+j, 0, dtor)) {
*k = j;
return 0;
}
} while ((j=(j+1)%PTHREAD_KEYS_MAX) != i);
return EAGAIN;
}
int pthread_key_delete(pthread_key_t k)
{
keys[k] = 0;
return 0;
}
void __pthread_tsd_run_dtors()
{
pthread_t self = __pthread_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;
}
}
}
}
|