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#include "pthread_impl.h"
const size_t __pthread_tsd_size = sizeof(void *) * PTHREAD_KEYS_MAX;
static void nodtor(void *dummy)
{
}
int pthread_key_create(pthread_key_t *k, void (*dtor)(void *))
{
static void (*keys[PTHREAD_KEYS_MAX])(void *);
int i = (uintptr_t)&k / 16 % PTHREAD_KEYS_MAX;
int j = i;
pthread_self();
libc.tsd_keys = keys;
if (!dtor) dtor = nodtor;
/* Cheap trick - &k cannot match any destructor pointer */
while (a_cas_p(keys+j, 0, &k)
&& (j=(j+1)%PTHREAD_KEYS_MAX) != i);
if (keys[j] != (void (*)(void *))&k)
return EAGAIN;
keys[j] = dtor;
*k = j;
return 0;
}
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