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-rw-r--r--crypto/threads_pthread.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/crypto/threads_pthread.c b/crypto/threads_pthread.c
index 5cc48afb16..f10757c5dc 100644
--- a/crypto/threads_pthread.c
+++ b/crypto/threads_pthread.c
@@ -11,8 +11,13 @@
#if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG) && !defined(OPENSSL_SYS_WINDOWS)
+#ifdef PTHREAD_RWLOCK_INITIALIZER
+ #define OPENSSL_THREADS_HAVE_PTHREAD_RWLOCK
+#endif
+
CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
{
+#ifdef OPENSSL_THREADS_HAVE_PTHREAD_RWLOCK
CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(pthread_rwlock_t));
if (lock == NULL)
return NULL;
@@ -21,30 +26,62 @@ CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
OPENSSL_free(lock);
return NULL;
}
+#else
+ CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(pthread_mutex_t));
+ if (lock == NULL)
+ return NULL;
+
+ pthread_mutexattr_t attr;
+ pthread_mutexattr_init(&attr);
+ pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+
+ if (pthread_mutex_init(lock, &attr) != 0) {
+ pthread_mutexattr_destroy(&attr);
+ OPENSSL_free(lock);
+ return NULL;
+ }
+
+ pthread_mutexattr_destroy(&attr);
+#endif
return lock;
}
int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
{
+#ifdef OPENSSL_THREADS_HAVE_PTHREAD_RWLOCK
if (pthread_rwlock_rdlock(lock) != 0)
return 0;
+#else
+ if (pthread_mutex_lock(lock) != 0)
+ return 0;
+#endif
return 1;
}
int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
{
+#ifdef OPENSSL_THREADS_HAVE_PTHREAD_RWLOCK
if (pthread_rwlock_wrlock(lock) != 0)
return 0;
+#else
+ if (pthread_mutex_lock(lock) != 0)
+ return 0;
+#endif
return 1;
}
int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
{
+#ifdef OPENSSL_THREADS_HAVE_PTHREAD_RWLOCK
if (pthread_rwlock_unlock(lock) != 0)
return 0;
+#else
+ if (pthread_mutex_unlock(lock) != 0)
+ return 0;
+#endif
return 1;
}
@@ -54,7 +91,11 @@ void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock)
if (lock == NULL)
return;
+#ifdef OPENSSL_THREADS_HAVE_PTHREAD_RWLOCK
pthread_rwlock_destroy(lock);
+#else
+ pthread_mutex_destroy(lock);
+#endif
OPENSSL_free(lock);
return;