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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
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;
+}