1 files changed, 8 insertions, 0 deletions
diff --git a/src/thread/sem_getvalue.c b/src/thread/sem_getvalue.c
new file mode 100644
index 00000000..643c0968
--- /dev/null
+++ b/src/thread/sem_getvalue.c
@@ -0,0 +1,8 @@
+#include <semaphore.h>
+
+int sem_getvalue(sem_t *sem, int *valp)
+{
+	int val = sem->__val[0];
+	*valp = val < 0 ? 0 : val;
+	return 0;
+}