1 files changed, 46 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/thread/pthread_join.c b/libc-top-half/musl/src/thread/pthread_join.c
new file mode 100644
index 0000000..b06e7e7
--- /dev/null
+++ b/libc-top-half/musl/src/thread/pthread_join.c
@@ -0,0 +1,46 @@
+#define _GNU_SOURCE
+#include "pthread_impl.h"
+#ifdef __wasilibc_unmodified_upstream
+#include <sys/mman.h>
+#endif
+
+static void dummy1(pthread_t t)
+{
+}
+weak_alias(dummy1, __tl_sync);
+
+static int __pthread_timedjoin_np(pthread_t t, void **res, const struct timespec *at)
+{
+	int state, cs, r = 0;
+	__pthread_testcancel();
+	__pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+	if (cs == PTHREAD_CANCEL_ENABLE) __pthread_setcancelstate(cs, 0);
+	while ((state = t->detach_state) && r != ETIMEDOUT && r != EINVAL) {
+		if (state >= DT_DETACHED) a_crash();
+		r = __timedwait_cp(&t->detach_state, state, CLOCK_REALTIME, at, 1);
+	}
+	__pthread_setcancelstate(cs, 0);
+	if (r == ETIMEDOUT || r == EINVAL) return r;
+	__tl_sync(t);
+	if (res) *res = t->result;
+#ifdef __wasilibc_unmodified_upstream
+	if (t->map_base) __munmap(t->map_base, t->map_size);
+#else
+	if (t->map_base) free(t->map_base);
+#endif
+	return 0;
+}
+
+int __pthread_join(pthread_t t, void **res)
+{
+	return __pthread_timedjoin_np(t, res, 0);
+}
+
+static int __pthread_tryjoin_np(pthread_t t, void **res)
+{
+	return t->detach_state==DT_JOINABLE ? EBUSY : __pthread_join(t, res);
+}
+
+weak_alias(__pthread_tryjoin_np, pthread_tryjoin_np);
+weak_alias(__pthread_timedjoin_np, pthread_timedjoin_np);
+weak_alias(__pthread_join, pthread_join);