X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/9440be3a5115a91dcdf8dff05a361cac4b6cea29..a0655e5d30f3cdc73b1aaaa4825d8fae9f92ce4a:/lunaix-os/includes/lunaix/ds/mutex.h

diff --git a/lunaix-os/includes/lunaix/ds/mutex.h b/lunaix-os/includes/lunaix/ds/mutex.h
new file mode 100644
index 0000000..5e166e5
--- /dev/null
+++ b/lunaix-os/includes/lunaix/ds/mutex.h
@@ -0,0 +1,26 @@
+#ifndef __LUNAIX_MUTEX_H
+#define __LUNAIX_MUTEX_H
+
+#include "semaphore.h"
+
+// TODO: implement mutex lock
+
+typedef struct sem_t mutex_t;
+
+static inline void mutex_init(mutex_t *mutex) {
+    sem_init(mutex, 1);
+}
+
+static inline unsigned int mutex_on_hold(mutex_t *mutex) {
+    return !atomic_load(&mutex->counter);
+}
+
+static inline void mutex_lock(mutex_t *mutex) {
+    sem_wait(mutex);
+}
+
+static inline void mutex_unlock(mutex_t *mutex) {
+    sem_post(mutex);
+}
+
+#endif /* __LUNAIX_MUTEX_H */