implement robust mutexes

[musl] / src / thread / pthread_mutexattr_setrobust.c

diff --git a/src/thread/pthread_mutexattr_setrobust.c b/src/thread/pthread_mutexattr_setrobust.c
new file mode 100644 (file)
index 0000000..4a296ba
--- /dev/null
+++ b/src/thread/pthread_mutexattr_setrobust.c
@@ -0,0 +1,9 @@
+#include "pthread_impl.h"
+
+int pthread_mutexattr_setrobust(pthread_mutexattr_t *a, int robust)
+{
+       if (robust > 1U) return EINVAL;
+       *a &= ~4;
+       *a |= robust*4;
+       return 0;
+}