1 files changed, 76 insertions, 0 deletions

diff --git a/drivers/unix/rw_lock_posix.cpp b/drivers/unix/rw_lock_posix.cpp
new file mode 100644
index 000000000..772a7b812
--- /dev/null
+++ b/drivers/unix/rw_lock_posix.cpp
@@ -0,0 +1,76 @@
+
+#if defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)
+
+#include "os/memory.h"
+#include "rw_lock_posix.h"
+#include "error_macros.h"
+#include <stdio.h>
+
+void RWLockPosix::read_lock() {
+
+	int err =pthread_rwlock_rdlock(&rwlock);
+	if (err!=0) {
+		perror("wtf: ");
+	}
+	ERR_FAIL_COND(err!=0);
+}
+
+void RWLockPosix::read_unlock() {
+
+	pthread_rwlock_unlock(&rwlock);
+}
+
+Error RWLockPosix::read_try_lock() {
+
+	if (pthread_rwlock_tryrdlock(&rwlock)!=0) {
+		return ERR_BUSY;
+	} else {
+		return OK;
+	}
+
+}
+
+void RWLockPosix::write_lock() {
+
+	int err = pthread_rwlock_wrlock(&rwlock);
+	ERR_FAIL_COND(err!=0);
+}
+
+void RWLockPosix::write_unlock() {
+
+	pthread_rwlock_unlock(&rwlock);
+}
+
+Error RWLockPosix::write_try_lock() {
+	if (pthread_rwlock_trywrlock(&rwlock)!=0) {
+		return ERR_BUSY;
+	} else {
+		return OK;
+	}
+}
+
+
+RWLock *RWLockPosix::create_func_posix() {
+
+	return memnew( RWLockPosix );
+}
+
+void RWLockPosix::make_default() {
+
+	create_func=create_func_posix;
+}
+
+
+RWLockPosix::RWLockPosix() {
+
+	rwlock=PTHREAD_RWLOCK_INITIALIZER;
+}
+
+
+RWLockPosix::~RWLockPosix() {
+
+	pthread_rwlock_destroy(&rwlock);
+
+}
+
+#endif