1 files changed, 0 insertions, 98 deletions
diff --git a/src/libstd/sys/wasm/thread.rs b/src/libstd/sys/wasm/thread.rs
deleted file mode 100644
index 0a11896a004..00000000000
--- a/src/libstd/sys/wasm/thread.rs
+++ /dev/null
@@ -1,98 +0,0 @@
-use crate::ffi::CStr;
-use crate::io;
-use crate::sys::{unsupported, Void};
-use crate::time::Duration;
-
-pub struct Thread(Void);
-
-pub const DEFAULT_MIN_STACK_SIZE: usize = 4096;
-
-impl Thread {
-    // unsafe: see thread::Builder::spawn_unchecked for safety requirements
-    pub unsafe fn new(_stack: usize, _p: Box<dyn FnOnce()>) -> io::Result<Thread> {
-        unsupported()
-    }
-
-    pub fn yield_now() {
-        // do nothing
-    }
-
-    pub fn set_name(_name: &CStr) {
-        // nope
-    }
-
-    #[cfg(not(target_feature = "atomics"))]
-    pub fn sleep(_dur: Duration) {
-        panic!("can't sleep");
-    }
-
-    #[cfg(target_feature = "atomics")]
-    pub fn sleep(dur: Duration) {
-        use crate::arch::wasm32;
-        use crate::cmp;
-
-        // Use an atomic wait to block the current thread artificially with a
-        // timeout listed. Note that we should never be notified (return value
-        // of 0) or our comparison should never fail (return value of 1) so we
-        // should always only resume execution through a timeout (return value
-        // 2).
-        let mut nanos = dur.as_nanos();
-        while nanos > 0 {
-            let amt = cmp::min(i64::MAX as u128, nanos);
-            let mut x = 0;
-            let val = unsafe { wasm32::i32_atomic_wait(&mut x, 0, amt as i64) };
-            debug_assert_eq!(val, 2);
-            nanos -= amt;
-        }
-    }
-
-    pub fn join(self) {
-        match self.0 {}
-    }
-}
-
-pub mod guard {
-    pub type Guard = !;
-    pub unsafe fn current() -> Option<Guard> {
-        None
-    }
-    pub unsafe fn init() -> Option<Guard> {
-        None
-    }
-}
-
-// This is only used by atomics primitives when the `atomics` feature is
-// enabled. In that mode we currently just use our own thread-local to store our
-// current thread's ID, and then we lazily initialize it to something allocated
-// from a global counter.
-#[cfg(target_feature = "atomics")]
-pub fn my_id() -> u32 {
-    use crate::sync::atomic::{AtomicU32, Ordering::SeqCst};
-
-    static NEXT_ID: AtomicU32 = AtomicU32::new(0);
-
-    #[thread_local]
-    static mut MY_ID: u32 = 0;
-
-    unsafe {
-        // If our thread ID isn't set yet then we need to allocate one. Do so
-        // with with a simple "atomically add to a global counter" strategy.
-        // This strategy doesn't handled what happens when the counter
-        // overflows, however, so just abort everything once the counter
-        // overflows and eventually we could have some sort of recycling scheme
-        // (or maybe this is all totally irrelevant by that point!). In any case
-        // though we're using a CAS loop instead of a `fetch_add` to ensure that
-        // the global counter never overflows.
-        if MY_ID == 0 {
-            let mut cur = NEXT_ID.load(SeqCst);
-            MY_ID = loop {
-                let next = cur.checked_add(1).unwrap_or_else(|| crate::arch::wasm32::unreachable());
-                match NEXT_ID.compare_exchange(cur, next, SeqCst, SeqCst) {
-                    Ok(_) => break next,
-                    Err(i) => cur = i,
-                }
-            };
-        }
-        MY_ID
-    }
-}