1 files changed, 18 insertions, 0 deletions
diff --git a/src/thread/pthread_detach.c b/src/thread/pthread_detach.c
new file mode 100644
index 0000000..d73a500
--- /dev/null
+++ b/src/thread/pthread_detach.c
@@ -0,0 +1,18 @@
+#include "pthread_impl.h"
+#include <threads.h>
+
+static int __pthread_detach(pthread_t t)
+{
+	/* If the cas fails, detach state is either already-detached
+	 * or exiting/exited, and pthread_join will trap or cleanup. */
+	if (a_cas(&t->detach_state, DT_JOINABLE, DT_DETACHED) != DT_JOINABLE) {
+		int cs;
+		__pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+		__pthread_join(t, 0);
+		__pthread_setcancelstate(cs, 0);
+	}
+	return 0;
+}
+
+weak_alias(__pthread_detach, pthread_detach);
+weak_alias(__pthread_detach, thrd_detach);