move SpinLock definitions around

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/std/os.zig b/lib/std/os.zig
index efddc9aafb..72dd2a7196 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -3169,3 +3169,13 @@ pub fn dn_expand(
     }
     return error.InvalidDnsPacket;
 }
+
+pub fn yield() void {
+    switch (builtin.os) {
+        .windows => _ = windows.kernel32.SwitchToThread(),
+        .linux => _ = assert(linux.sched_yield() == 0),
+        else => if (builtin.link_libc) {
+            assert(std.c.pthread_yield() == 0);
+        },
+    }
+}