summaryrefslogtreecommitdiff
path: root/src/thread/sem_getvalue.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/thread/sem_getvalue.c')
-rw-r--r--src/thread/sem_getvalue.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/thread/sem_getvalue.c b/src/thread/sem_getvalue.c
new file mode 100644
index 0000000..c0b7762
--- /dev/null
+++ b/src/thread/sem_getvalue.c
@@ -0,0 +1,9 @@
+#include <semaphore.h>
+#include <limits.h>
+
+int sem_getvalue(sem_t *restrict sem, int *restrict valp)
+{
+ int val = sem->__val[0];
+ *valp = val & SEM_VALUE_MAX;
+ return 0;
+}