X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fthread%2Fpthread_key_create.c;h=e51cb02325d4908a8ac91b58d6b6afde47a5af6d;hp=52c09734b031dfaff67fb38e5332ad22e5978015;hb=d5fd1fa48564a5528f53e5b1cab5063a0545d7f7;hpb=b480808a6a511c9350a6559b63938ac261c83a76 diff --git a/src/thread/pthread_key_create.c b/src/thread/pthread_key_create.c index 52c09734..e51cb023 100644 --- a/src/thread/pthread_key_create.c +++ b/src/thread/pthread_key_create.c @@ -1,6 +1,9 @@ #include "pthread_impl.h" 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) { @@ -8,19 +11,39 @@ 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; + unsigned i = (uintptr_t)&k / 16 % PTHREAD_KEYS_MAX; + unsigned j = i; - pthread_self(); - libc.tsd_keys = keys; + __pthread_self_init(); 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; + 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 && jtsd[i] && keys[i]) { + void *tmp = self->tsd[i]; + self->tsd[i] = 0; + keys[i](tmp); + not_finished = 1; + } + } + } +}