use direct syscall rather than write function in posix_spawn child

[musl] / src / thread / pthread_join.c

diff --git a/src/thread/pthread_join.c b/src/thread/pthread_join.c
index 5210ed4..19e6b54 100644 (file)
--- a/src/thread/pthread_join.c
+++ b/src/thread/pthread_join.c
@@ -1,12 +1,20 @@
 #include "pthread_impl.h"
+#include <sys/mman.h>
 
-int pthread_join(pthread_t t, void **res)
+int __munmap(void *, size_t);
+
+static void dummy(void *p)
 {
-       int tmp = t->tid;
-       CANCELPT_BEGIN;
-       if (tmp) __wait(&t->tid, 0, tmp, 1);
-       CANCELPT_END;
+}
+
+int __pthread_join(pthread_t t, void **res)
+{
+       int tmp;
+       pthread_testcancel();
+       while ((tmp = t->tid)) __timedwait(&t->tid, tmp, 0, 0, dummy, 0, 0);
        if (res) *res = t->result;
-       if (t->map_base) munmap(t->map_base, t->map_size);
+       if (t->map_base) __munmap(t->map_base, t->map_size);
        return 0;
 }
+
+weak_alias(__pthread_join, pthread_join);