From 8c1ab65c0f548d20b7f177bdb736daaf603340e1 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 15:54:38 +0200 Subject: Adding upstream version 0.0~git20221206.8b7148f. Signed-off-by: Daniel Baumann --- libc-top-half/musl/src/thread/pthread_spin_lock.c | 8 ++++++++ 1 file changed, 8 insertions(+) create mode 100644 libc-top-half/musl/src/thread/pthread_spin_lock.c (limited to 'libc-top-half/musl/src/thread/pthread_spin_lock.c') diff --git a/libc-top-half/musl/src/thread/pthread_spin_lock.c b/libc-top-half/musl/src/thread/pthread_spin_lock.c new file mode 100644 index 0000000..ded2b65 --- /dev/null +++ b/libc-top-half/musl/src/thread/pthread_spin_lock.c @@ -0,0 +1,8 @@ +#include "pthread_impl.h" +#include + +int pthread_spin_lock(pthread_spinlock_t *s) +{ + while (*(volatile int *)s || a_cas(s, 0, EBUSY)) a_spin(); + return 0; +} -- cgit v1.2.3