[#3] Remove thread_exit and thread_cancel features (can be realized w…

…ith more idiomatic approaches)

iceoryx2-bb/posix/src/barrier.rs

@@ -213,7 +213,7 @@ impl<'a> Barrier<'a> {
 }
 
 impl<'a> IpcConstructible<'a, BarrierHandle> for Barrier<'a> {
-    fn new(handle: &'a BarrierHandle) -> Barrier {
+    fn new(handle: &BarrierHandle) -> Barrier {
         Barrier { handle }
     }
 }

iceoryx2-bb/posix/src/thread.rs

@@ -159,11 +159,6 @@ enum_gen! {
     FailedToSetAffinity <= ThreadSetAffinityError
 }
 
-/// Terminates the callers thread
-pub fn thread_exit() -> ! {
-    unsafe { posix::pthread_exit(std::ptr::null_mut::<posix::void>()) }
-}
-
 /// Describes the scope in which a thread is competing with other threads for CPU time.
 #[derive(Debug, Clone, Copy, Eq, Hash, PartialEq)]
 #[repr(i32)]
@@ -803,11 +798,6 @@ impl<'thread> Thread<'thread> {
             v => (UnknownError(v as i32), "{} {:?} since an unknown error occurred ({})", msg, signal, v)
         );
     }
-
-    /// Terminates the current thread.
-    pub fn cancel(&mut self) -> bool {
-        unsafe { posix::pthread_cancel(self.handle.handle) != 0 }
-    }
 }
 
 impl<'thread> ThreadProperties for Thread<'thread> {

iceoryx2-bb/posix/tests/thread_tests.rs

@@ -198,44 +198,3 @@ fn thread_destructor_does_block_on_busy_thread() {
     drop(thread);
     assert_that!(start.elapsed(), time_at_least SLEEP_DURATION);
 }
-
-#[test]
-fn thread_cancel_works() {
-    let barrier = Arc::new(Barrier::new(2));
-    let mut thread = {
-        let barrier = barrier.clone();
-        ThreadBuilder::new()
-            .affinity(0)
-            .spawn(move || {
-                barrier.wait();
-                loop {
-                    // NOTE we have to use 'sleep' instead of 'barrier.wait()' since the latter blocks cancellation
-                    std::thread::sleep(Duration::from_millis(100));
-                }
-            })
-            .unwrap()
-    };
-
-    // if the thread is not executed we observe a deadlock here
-    barrier.wait();
-    thread.cancel();
-}
-
-#[test]
-fn thread_exit_works() {
-    let _thread = {
-        ThreadBuilder::new()
-            .affinity(0)
-            .spawn(move || {
-                // TODO: [#258] This sleep prevents a 'SIGABRT' on Linux with release builds with rustc v1.81.0-nightly!
-                #[cfg(target_os = "linux")]
-                std::thread::sleep(Duration::from_nanos(1));
-                thread_exit();
-                #[allow(unreachable_code)]
-                {
-                    panic!("This should not happen when 'thread_exit' works as intended");
-                }
-            })
-            .unwrap()
-    };
-}

iceoryx2-pal/posix/src/freebsd/pthread.rs

@@ -126,14 +126,6 @@ pub unsafe fn pthread_getname_np(thread: pthread_t, name: *mut c_char, len: size
     internal::pthread_getname_np(thread, name, len)
 }
 
-pub unsafe fn pthread_cancel(thread: pthread_t) -> int {
-    crate::internal::pthread_cancel(thread)
-}
-
-pub unsafe fn pthread_exit(value_ptr: *mut void) -> ! {
-    crate::internal::pthread_exit(value_ptr)
-}
-
 pub unsafe fn pthread_kill(thread: pthread_t, sig: int) -> int {
     internal::pthread_kill(thread, sig)
 }

iceoryx2-pal/posix/src/linux/pthread.rs

@@ -126,14 +126,6 @@ pub unsafe fn pthread_getname_np(thread: pthread_t, name: *mut c_char, len: size
     internal::pthread_getname_np(thread, name, len)
 }
 
-pub unsafe fn pthread_cancel(thread: pthread_t) -> int {
-    crate::internal::pthread_cancel(thread)
-}
-
-pub unsafe fn pthread_exit(value_ptr: *mut void) -> ! {
-    crate::internal::pthread_exit(value_ptr)
-}
-
 pub unsafe fn pthread_kill(thread: pthread_t, sig: int) -> int {
     internal::pthread_kill(thread, sig)
 }

iceoryx2-pal/posix/src/macos/pthread.rs

@@ -357,14 +357,6 @@ pub unsafe fn pthread_getname_np(thread: pthread_t, name: *mut c_char, len: size
     Errno::ESUCCES as _
 }
 
-pub unsafe fn pthread_cancel(thread: pthread_t) -> int {
-    crate::internal::pthread_cancel(thread)
-}
-
-pub unsafe fn pthread_exit(value_ptr: *mut void) -> ! {
-    crate::internal::pthread_exit(value_ptr)
-}
-
 pub unsafe fn pthread_kill(_thread: pthread_t, _sig: int) -> int {
     todo!()
 }

iceoryx2-pal/posix/src/windows/pthread.rs

@@ -29,7 +29,7 @@ use windows_sys::Win32::{
     System::{
         Memory::LocalFree,
         Threading::{
-            CreateThread, ExitThread, GetCurrentThread, GetCurrentThreadId, GetExitCodeThread,
+            CreateThread, GetCurrentThread, GetCurrentThreadId, GetExitCodeThread,
             GetThreadDescription, GetThreadId, SetThreadAffinityMask, SetThreadDescription,
             SetThreadPriority, TerminateThread, WaitForSingleObject, WaitOnAddress,
             WakeByAddressAll, WakeByAddressSingle, INFINITE, THREAD_PRIORITY_ABOVE_NORMAL,
@@ -396,15 +396,6 @@ pub unsafe fn pthread_getname_np(thread: pthread_t, name: *mut c_char, len: size
     Errno::ESUCCES as int
 }
 
-pub unsafe fn pthread_cancel(thread: pthread_t) -> int {
-    TerminateThread(thread.handle, 0);
-    Errno::ESUCCES as int
-}
-
-pub unsafe fn pthread_exit(value_ptr: *mut void) -> ! {
-    ExitThread(0);
-}
-
 pub unsafe fn pthread_kill(thread: pthread_t, sig: int) -> int {
     TerminateThread(thread.handle, 0);
     Errno::ESUCCES as int