rust/src/libstd/sync, branch 1.30.0

Fix invalid urls

2018-09-06T21:32:30+00:00

Auto merge of #53075 - Mark-Simulacrum:update-cargolock, r=alexcrichton

2018-09-05T03:04:20+00:00

Update Cargo.lock This also includes major version bumps for the rand crate used by core, std, and alloc tests, among other crates (regex, etc.) used elsewhere. Since these are all internal there should be no user-visible changes. r? @alexcrichton

Auto merge of #53027 - matklad:once_is_completed, r=alexcrichton

2018-09-05T00:37:03+00:00

Allow to check if sync::Once is already initialized Hi! I propose to expose a way to check if a `Once` instance is initialized. I need it in `once_cell`. `OnceCell` is effetively a pair of `(Once, UnsafeCell>)`, which can set the `T` only once. Because I can't check if `Once` is initialized, I am forced to add an indirection and check the value of ptr instead: https://github.com/matklad/once_cell/blob/8127a81976c3f2f4c0860562c3f14647ebc025c0/src/lib.rs#L423-L429 https://github.com/matklad/once_cell/blob/8127a81976c3f2f4c0860562c3f14647ebc025c0/src/lib.rs#L457-L461 The `parking_lot`'s version of `Once` exposes the state as an enum: https://docs.rs/parking_lot/0.6.3/parking_lot/struct.Once.html#method.state. I suggest, for now, just to add a simple `bool` function: this fits my use-case perfectly, exposes less implementation details, and is forward-compatible with more fine-grained state checking.

Breaking change upgrades

2018-09-04T19:22:08+00:00

Fix typos found by codespell.

2018-08-19T15:41:28+00:00

Auto merge of #52936 - felixrabe:patch-1, r=alexcrichton

2018-08-14T22:22:18+00:00

Document #39364 – Panic in mpsc::Receiver::recv_timeout I can still reproduce #39364 with the example code at https://github.com/rust-lang/rust/issues/39364#issuecomment-320637702. I'm opening this PR in an attempt to document this bug as a known issue in [libstd/sync/mpsc/mod.rs](https://github.com/rust-lang/rust/blob/master/src/libstd/sync/mpsc/mod.rs). Inputs very much welcome. ([Nightly docs for `recv_timeout`.](https://doc.rust-lang.org/nightly/std/sync/mpsc/struct.Receiver.html?search=#method.recv_timeout))

Reduce code duplication in Once

2018-08-09T17:50:43+00:00

"Panics" -> "Known Issues"; rm trailing WS

2018-08-07T15:34:34+00:00

Less words better than moar words

2018-08-07T14:39:09+00:00

Rephrase

2018-08-07T14:38:02+00:00