about summary refs log tree commit diff
path: root/src/thread/sem_init.c
diff options
context:
space:
mode:
authorRich Felker <dalias@aerifal.cx>2011-03-04 00:45:59 -0500
committerRich Felker <dalias@aerifal.cx>2011-03-04 00:45:59 -0500
commit6fc5fdbdc70dd17ea8e681a361fb4dae541ee953 (patch)
treeeee28ceddc2de85e528e50340e045a875e6a8e60 /src/thread/sem_init.c
parent03dcc3417ce4388a652bdd053cb2b6af860daf00 (diff)
downloadmusl-6fc5fdbdc70dd17ea8e681a361fb4dae541ee953.tar.gz
musl-6fc5fdbdc70dd17ea8e681a361fb4dae541ee953.tar.xz
musl-6fc5fdbdc70dd17ea8e681a361fb4dae541ee953.zip
implement POSIX semaphores
Diffstat (limited to 'src/thread/sem_init.c')
-rw-r--r--src/thread/sem_init.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/thread/sem_init.c b/src/thread/sem_init.c
new file mode 100644
index 00000000..70f06e9f
--- /dev/null
+++ b/src/thread/sem_init.c
@@ -0,0 +1,13 @@
+#include <semaphore.h>
+#include <limits.h>
+#include <errno.h>
+
+int sem_init(sem_t *sem, int pshared, unsigned value)
+{
+	if (value > SEM_VALUE_MAX) {
+		errno = EINVAL;
+		return -1;
+	}
+	sem->__val[0] = value;
+	return 0;
+}