X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Fpthread_key_create.c;h=a78e507a6fc9a9708140e96929a6a572a4e27601;hb=40bae2d32fd6f3ffea437fa745ad38a1fe77b27e;hp=2316a46f7d497c23e367fff7ebbeac125ff629df;hpb=fd80cfa00b34ec81b3049b98c66f6a45301ca6c4;p=musl

diff --git a/src/thread/pthread_key_create.c b/src/thread/pthread_key_create.c
index 2316a46f..a78e507a 100644
--- a/src/thread/pthread_key_create.c
+++ b/src/thread/pthread_key_create.c
@@ -1,24 +1,27 @@
 #include "pthread_impl.h"
 
-const size_t __pthread_tsd_size = sizeof(void *) * PTHREAD_KEYS_MAX;
+volatile 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 (*volatile keys[PTHREAD_KEYS_MAX])(void *);
 
 static void nodtor(void *dummy)
 {
 }
 
-int pthread_key_create(pthread_key_t *k, void (*dtor)(void *))
+int __pthread_key_create(pthread_key_t *k, void (*dtor)(void *))
 {
 	unsigned i = (uintptr_t)&k / 16 % PTHREAD_KEYS_MAX;
 	unsigned j = i;
+	pthread_t self = __pthread_self();
+
+	/* This can only happen in the main thread before
+	 * pthread_create has been called. */
+	if (!self->tsd) self->tsd = __pthread_tsd_main;
 
-	pthread_self();
-	libc.tsd_keys = keys;
 	if (!dtor) dtor = nodtor;
 	do {
-		if (!a_cas_p(keys+j, 0, dtor)) {
+		if (!a_cas_p(keys+j, 0, (void *)dtor)) {
 			*k = j;
 			return 0;
 		}
@@ -26,8 +29,15 @@ int pthread_key_create(pthread_key_t *k, void (*dtor)(void *))
 	return EAGAIN;
 }
 
-void __pthread_tsd_run_dtors(pthread_t self)
+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;
@@ -41,3 +51,6 @@ void __pthread_tsd_run_dtors(pthread_t self)
 		}
 	}
 }
+
+weak_alias(__pthread_key_delete, pthread_key_delete);
+weak_alias(__pthread_key_create, pthread_key_create);