Add sem_timedwait

src/header/semaphore/cbindgen.toml

@@ -1,4 +1,4 @@
-sys_includes = []
+sys_includes = ["time.h"]
 include_guard = "_RELIBC_SEMAPHORE_H"
 language = "C"
 style = "Type"

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()
 }