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Make sure pthread_once() succeeds.

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It can fail on FreeBSD when library is not linked against either
threading library and results in init routine not being executed
at all, leading to errors in other parts of the code.

Change-Id: I1063f6940e381e6470593c063fbfecf3f47991cd
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Reviewed-on: https://boringssl-review.googlesource.com/6522
Reviewed-by: Adam Langley <agl@google.com>
This commit is contained in:
Piotr Sikora 2015-11-16 23:56:55 -08:00 committed by Adam Langley
parent 9361243065
commit c324f1783e
1 changed files with 6 additions and 1 deletions
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7
crypto/thread_pthread.c
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@ -17,6 +17,7 @@
#if !defined(OPENSSL_WINDOWS) && !defined(OPENSSL_NO_THREADS)
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -74,7 +75,11 @@ void CRYPTO_STATIC_MUTEX_unlock(struct CRYPTO_STATIC_MUTEX *lock) {
}
void CRYPTO_once(CRYPTO_once_t *once, void (*init)(void)) {
pthread_once(once, init);
if (pthread_once(once, init) != 0) {
fprintf(stderr,
"pthread_once failed. Did you link against a threading library?\n");
abort();
}
}
static pthread_mutex_t g_destructors_lock = PTHREAD_MUTEX_INITIALIZER;