From 7ab71a0ad591cd72d7bee512b58a53e08e510ade Mon Sep 17 00:00:00 2001
From: Wildan M <willnode@wellosoft.net>
Date: Thu, 28 Aug 2025 08:36:16 +0700
Subject: [PATCH] Add sem_timedwait

---
 src/header/semaphore/cbindgen.toml |  2 +-
 src/header/semaphore/mod.rs        | 10 +++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/header/semaphore/cbindgen.toml b/src/header/semaphore/cbindgen.toml
index 213064b7ac..1eb7ba4cbf 100644
--- a/src/header/semaphore/cbindgen.toml
+++ b/src/header/semaphore/cbindgen.toml
@@ -1,4 +1,4 @@
-sys_includes = []
+sys_includes = ["time.h"]
 include_guard = "_RELIBC_SEMAPHORE_H"
 language = "C"
 style = "Type"
diff --git a/src/header/semaphore/mod.rs b/src/header/semaphore/mod.rs
index 34e4d1fcfb..b5137d54a7 100644
--- a/src/header/semaphore/mod.rs
+++ b/src/header/semaphore/mod.rs
@@ -2,7 +2,7 @@
 //!
 //! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/semaphore.h.html>.
 
-use crate::platform::types::*;
+use crate::{header::time::timespec, platform::types::*};
 
 /// See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/semaphore.h.html>.
 // TODO: Statically verify size and align
@@ -83,6 +83,14 @@ pub unsafe extern "C" fn sem_wait(sem: *mut sem_t) -> c_int {
     0
 }
 
+/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/sem_timedwait.html>.
+#[no_mangle]
+pub unsafe extern "C" fn sem_timedwait(sem: *mut sem_t, abstime: *const timespec) -> c_int {
+    get(sem).wait(Some(&*abstime));
+
+    0
+}
+
 unsafe fn get<'any>(sem: *mut sem_t) -> &'any RlctSempahore {
     &*sem.cast()
 }