1 files changed, 29 insertions, 0 deletions
diff --git a/osdep/win32/include/semaphore.h b/osdep/win32/include/semaphore.h
new file mode 100644
index 0000000000..49670fc7a5
--- /dev/null
+++ b/osdep/win32/include/semaphore.h
@@ -0,0 +1,29 @@
+#ifndef MP_WRAP_SEMAPHORE_H_
+#define MP_WRAP_SEMAPHORE_H_
+
+#include <pthread.h>
+
+// See pthread.h for rationale.
+#define sem_init m_sem_init
+#define sem_destroy m_sem_destroy
+#define sem_wait m_sem_wait
+#define sem_trywait m_sem_trywait
+#define sem_timedwait m_sem_timedwait
+#define sem_post m_sem_post
+
+#define SEM_VALUE_MAX 100
+
+typedef struct {
+    pthread_mutex_t lock;
+    pthread_cond_t wakeup;
+    unsigned int value;
+} sem_t;
+
+int sem_init(sem_t *sem, int pshared, unsigned int value);
+int sem_destroy(sem_t *sem);
+int sem_wait(sem_t *sem);
+int sem_trywait(sem_t *sem);
+int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout);
+int sem_post(sem_t *sem);
+
+#endif