1 files changed, 0 insertions, 118 deletions
diff --git a/src/libstd/sys/cloudabi/thread.rs b/src/libstd/sys/cloudabi/thread.rs
deleted file mode 100644
index a15dc8653e8..00000000000
--- a/src/libstd/sys/cloudabi/thread.rs
+++ /dev/null
@@ -1,118 +0,0 @@
-use crate::cmp;
-use crate::ffi::CStr;
-use crate::io;
-use crate::mem;
-use crate::ptr;
-use crate::sys::cloudabi::abi;
-use crate::sys::time::checked_dur2intervals;
-use crate::time::Duration;
-
-pub const DEFAULT_MIN_STACK_SIZE: usize = 2 * 1024 * 1024;
-
-pub struct Thread {
-    id: libc::pthread_t,
-}
-
-// CloudABI has pthread_t as a pointer in which case we still want
-// a thread to be Send/Sync
-unsafe impl Send for Thread {}
-unsafe impl Sync for Thread {}
-
-impl Thread {
-    // unsafe: see thread::Builder::spawn_unchecked for safety requirements
-    pub unsafe fn new(stack: usize, p: Box<dyn FnOnce()>) -> io::Result<Thread> {
-        let p = Box::into_raw(box p);
-        let mut native: libc::pthread_t = mem::zeroed();
-        let mut attr: libc::pthread_attr_t = mem::zeroed();
-        assert_eq!(libc::pthread_attr_init(&mut attr), 0);
-
-        let stack_size = cmp::max(stack, min_stack_size(&attr));
-        assert_eq!(libc::pthread_attr_setstacksize(&mut attr, stack_size), 0);
-
-        let ret = libc::pthread_create(&mut native, &attr, thread_start, p as *mut _);
-        // Note: if the thread creation fails and this assert fails, then p will
-        // be leaked. However, an alternative design could cause double-free
-        // which is clearly worse.
-        assert_eq!(libc::pthread_attr_destroy(&mut attr), 0);
-
-        return if ret != 0 {
-            // The thread failed to start and as a result p was not consumed. Therefore, it is
-            // safe to reconstruct the box so that it gets deallocated.
-            drop(Box::from_raw(p));
-            Err(io::Error::from_raw_os_error(ret))
-        } else {
-            Ok(Thread { id: native })
-        };
-
-        extern "C" fn thread_start(main: *mut libc::c_void) -> *mut libc::c_void {
-            unsafe {
-                // Let's run some code.
-                Box::from_raw(main as *mut Box<dyn FnOnce()>)();
-            }
-            ptr::null_mut()
-        }
-    }
-
-    pub fn yield_now() {
-        let ret = unsafe { abi::thread_yield() };
-        debug_assert_eq!(ret, abi::errno::SUCCESS);
-    }
-
-    pub fn set_name(_name: &CStr) {
-        // CloudABI has no way to set a thread name.
-    }
-
-    pub fn sleep(dur: Duration) {
-        let timeout =
-            checked_dur2intervals(&dur).expect("overflow converting duration to nanoseconds");
-        unsafe {
-            let subscription = abi::subscription {
-                type_: abi::eventtype::CLOCK,
-                union: abi::subscription_union {
-                    clock: abi::subscription_clock {
-                        clock_id: abi::clockid::MONOTONIC,
-                        timeout,
-                        ..mem::zeroed()
-                    },
-                },
-                ..mem::zeroed()
-            };
-            let mut event = mem::MaybeUninit::<abi::event>::uninit();
-            let mut nevents = mem::MaybeUninit::<usize>::uninit();
-            let ret = abi::poll(&subscription, event.as_mut_ptr(), 1, nevents.as_mut_ptr());
-            assert_eq!(ret, abi::errno::SUCCESS);
-            let event = event.assume_init();
-            assert_eq!(event.error, abi::errno::SUCCESS);
-        }
-    }
-
-    pub fn join(self) {
-        unsafe {
-            let ret = libc::pthread_join(self.id, ptr::null_mut());
-            mem::forget(self);
-            assert!(ret == 0, "failed to join thread: {}", io::Error::from_raw_os_error(ret));
-        }
-    }
-}
-
-impl Drop for Thread {
-    fn drop(&mut self) {
-        let ret = unsafe { libc::pthread_detach(self.id) };
-        debug_assert_eq!(ret, 0);
-    }
-}
-
-#[cfg_attr(test, allow(dead_code))]
-pub mod guard {
-    pub type Guard = !;
-    pub unsafe fn current() -> Option<Guard> {
-        None
-    }
-    pub unsafe fn init() -> Option<Guard> {
-        None
-    }
-}
-
-fn min_stack_size(_: *const libc::pthread_attr_t) -> usize {
-    libc::PTHREAD_STACK_MIN
-}