From f53f2ca287b1f091d8a58786f2d5529289d4afff Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Sun, 20 Apr 2025 16:42:07 -0700
Subject: [PATCH] add sched_yield

---
 mod.zig  | 8 +++++++-
 test.zig | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/mod.zig b/mod.zig
index 17d72d7013d4a5d55fe6a836b2cb976d6397a010..72032dc3b220476fdaa38a25f0314187efbfb716 100644
--- a/mod.zig
+++ b/mod.zig
@@ -150,7 +150,13 @@ pub const select = @compileError("TODO: select");
 // sched_yield
 // int sched_yield(void);
 // asmlinkage long sys_sched_yield(void);
-pub const sched_yield = @compileError("TODO: sched_yield");
+pub fn sched_yield() errno.Error!c_int {
+    const r = syscall0(.sched_yield);
+    return switch (_errno(r)) {
+        .ok => @intCast(r),
+        _ => |c| errno.errorFromInt(@intFromEnum(c)),
+    };
+}
 
 // mremap
 // void *mremap(void old_address[.old_size], size_t old_size, size_t new_size, int flags, ... /* void *new_address */);
diff --git a/test.zig b/test.zig
index a0ba83ba722bd28a1a4484f6b19ebd986fe63ba8..f7924d1c40d6d6a3e94842de961c877d583ec038 100644
--- a/test.zig
+++ b/test.zig
@@ -7,4 +7,5 @@ test {
     if (builtin.target.cpu.arch != .x86_64) return;
     _ = &linux.read;
     _ = &linux.write;
+    _ = &linux.sched_yield;
 }
-- 
2.54.0