Split unlock functions into read/write variants.

Windows SRWLOCK requires you call different functions here. Split
them up in preparation for switching Windows from CRITICAL_SECTION.

BUG=37

Change-Id: I7b5c6a98eab9ae5bb0734b805cfa1ff334918f35
Reviewed-on: https://boringssl-review.googlesource.com/8080
Reviewed-by: Adam Langley <agl@google.com>

1 files changed, 14 insertions, 2 deletions

diff --git a/crypto/thread_pthread.c b/crypto/thread_pthread.c
index 2a1c9f8a..2baa2b4d 100644
--- a/crypto/thread_pthread.c
+++ b/crypto/thread_pthread.c
@@ -45,7 +45,13 @@ void CRYPTO_MUTEX_lock_write(CRYPTO_MUTEX *lock) {
   }
 }
 
-void CRYPTO_MUTEX_unlock(CRYPTO_MUTEX *lock) {
+void CRYPTO_MUTEX_unlock_read(CRYPTO_MUTEX *lock) {
+  if (pthread_rwlock_unlock((pthread_rwlock_t *) lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_MUTEX_unlock_write(CRYPTO_MUTEX *lock) {
   if (pthread_rwlock_unlock((pthread_rwlock_t *) lock) != 0) {
     abort();
   }
@@ -67,7 +73,13 @@ void CRYPTO_STATIC_MUTEX_lock_write(struct CRYPTO_STATIC_MUTEX *lock) {
   }
 }
 
-void CRYPTO_STATIC_MUTEX_unlock(struct CRYPTO_STATIC_MUTEX *lock) {
+void CRYPTO_STATIC_MUTEX_unlock_read(struct CRYPTO_STATIC_MUTEX *lock) {
+  if (pthread_rwlock_unlock(&lock->lock) != 0) {
+    abort();
+  }
+}
+
+void CRYPTO_STATIC_MUTEX_unlock_write(struct CRYPTO_STATIC_MUTEX *lock) {
   if (pthread_rwlock_unlock(&lock->lock) != 0) {
     abort();
   }