rust/src/libstd/thread, branch 1.29.2

Rollup merge of #52759 - stjepang:impl-send-sync-for-joinhandle, r=TimNN

2018-07-28T08:24:59+00:00

Impl Send & Sync for JoinHandle This is just a cosmetic change - it slightly relaxes and clarifies the public API without effectively promising any new guarantees. Currently we have [these auto trait implementations](https://doc.rust-lang.org/nightly/std/thread/struct.JoinHandle.html#synthetic-implementations): ```rust impl Send for JoinHandle {} impl Sync for JoinHandle {} ``` Bound `T: Send` doesn't make much sense because `JoinHandle` can be created only when `T: Send`. Note that [`JoinHandle::::join`](https://doc.rust-lang.org/nightly/std/thread/struct.JoinHandle.html#method.join) doesn't require `T: Send` so why should the `Send` impl? And the `Sync` impl doesn't need `T: Sync` because `JoinHandle` cannot even share `T` - it can only send it to the thread that calls `join`.

Add stability attributes

2018-07-27T08:08:02+00:00

Impl Send & Sync for JoinHandle

2018-07-26T23:08:13+00:00

Add missing dyn in tests

2018-07-11T07:11:39+00:00

Deny bare trait objects in `src/libstd`.

2018-07-10T18:35:36+00:00

Auto merge of #51290 - Pslydhh:master, r=alexcrichton

2018-06-29T07:34:13+00:00

park/park_timeout: prohibit spurious wakeups in next park


// The implementation currently uses the trivial strategy of a Mutex+Condvar
// with wakeup flag, which does not actually allow spurious wakeups.

Because does not actually allow spurious wakeups. so we have let thread.inner.cvar.wait(m) in the loop to prohibit spurious wakeups. but if notified after we locked, this notification doesn't be consumed, it return, the next park will consume this notification...this is also 'spurious wakeup' case, 'one unpark() wakeups two park()'. We should improve this situation： `thread.inner.state.store(EMPTY, SeqCst);`

Fix the error reference for LocalKey::try_with

2018-06-27T05:13:28+00:00

libstd: add an RAII utility for sys_common::mutex::Mutex

2018-06-17T07:18:32+00:00

Signed-off-by: NODA, Kai

removes tabs

2018-06-02T07:59:54+00:00

remove trailing whitespace

2018-06-02T07:36:23+00:00

remove trailing whitespace