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2015-01-19Replace `0 as *const/mut T` with `ptr::null/null_mut()`we-1/+2
2015-01-06Fallout from stabilizationAaron Turon-1/+1
2015-01-02Rollup test fixes and rebase conflictsAlex Crichton-1/+0
2015-01-02rollup merge of #20273: alexcrichton/second-pass-commAlex Crichton-1/+2
Conflicts: src/doc/guide.md src/libcollections/bit.rs src/libcollections/btree/node.rs src/libcollections/slice.rs src/libcore/ops.rs src/libcore/prelude.rs src/librand/rand_impls.rs src/librustc/middle/check_match.rs src/librustc/middle/infer/region_inference/mod.rs src/librustc_driver/lib.rs src/librustdoc/test.rs src/libstd/bitflags.rs src/libstd/io/comm_adapters.rs src/libstd/io/mem.rs src/libstd/io/mod.rs src/libstd/io/net/pipe.rs src/libstd/io/net/tcp.rs src/libstd/io/net/udp.rs src/libstd/io/pipe.rs src/libstd/io/process.rs src/libstd/io/stdio.rs src/libstd/io/timer.rs src/libstd/io/util.rs src/libstd/macros.rs src/libstd/os.rs src/libstd/path/posix.rs src/libstd/path/windows.rs src/libstd/prelude/v1.rs src/libstd/rand/mod.rs src/libstd/rand/os.rs src/libstd/sync/barrier.rs src/libstd/sync/condvar.rs src/libstd/sync/future.rs src/libstd/sync/mpsc/mod.rs src/libstd/sync/mpsc/mpsc_queue.rs src/libstd/sync/mpsc/select.rs src/libstd/sync/mpsc/spsc_queue.rs src/libstd/sync/mutex.rs src/libstd/sync/once.rs src/libstd/sync/rwlock.rs src/libstd/sync/semaphore.rs src/libstd/sync/task_pool.rs src/libstd/sys/common/helper_thread.rs src/libstd/sys/unix/process.rs src/libstd/sys/unix/timer.rs src/libstd/sys/windows/c.rs src/libstd/sys/windows/timer.rs src/libstd/sys/windows/tty.rs src/libstd/thread.rs src/libstd/thread_local/mod.rs src/libstd/thread_local/scoped.rs src/libtest/lib.rs src/test/auxiliary/cci_capture_clause.rs src/test/bench/shootout-reverse-complement.rs src/test/bench/shootout-spectralnorm.rs src/test/compile-fail/array-old-syntax-2.rs src/test/compile-fail/bind-by-move-no-guards.rs src/test/compile-fail/builtin-superkinds-self-type.rs src/test/compile-fail/comm-not-freeze-receiver.rs src/test/compile-fail/comm-not-freeze.rs src/test/compile-fail/issue-12041.rs src/test/compile-fail/unsendable-class.rs src/test/run-pass/builtin-superkinds-capabilities-transitive.rs src/test/run-pass/builtin-superkinds-capabilities-xc.rs src/test/run-pass/builtin-superkinds-capabilities.rs src/test/run-pass/builtin-superkinds-self-type.rs src/test/run-pass/capturing-logging.rs src/test/run-pass/closure-bounds-can-capture-chan.rs src/test/run-pass/comm.rs src/test/run-pass/core-run-destroy.rs src/test/run-pass/drop-trait-enum.rs src/test/run-pass/hashmap-memory.rs src/test/run-pass/issue-13494.rs src/test/run-pass/issue-3609.rs src/test/run-pass/issue-4446.rs src/test/run-pass/issue-4448.rs src/test/run-pass/issue-8827.rs src/test/run-pass/issue-9396.rs src/test/run-pass/ivec-tag.rs src/test/run-pass/rust-log-filter.rs src/test/run-pass/send-resource.rs src/test/run-pass/send-type-inference.rs src/test/run-pass/sendable-class.rs src/test/run-pass/spawn-types.rs src/test/run-pass/task-comm-0.rs src/test/run-pass/task-comm-10.rs src/test/run-pass/task-comm-11.rs src/test/run-pass/task-comm-13.rs src/test/run-pass/task-comm-14.rs src/test/run-pass/task-comm-15.rs src/test/run-pass/task-comm-16.rs src/test/run-pass/task-comm-3.rs src/test/run-pass/task-comm-4.rs src/test/run-pass/task-comm-5.rs src/test/run-pass/task-comm-6.rs src/test/run-pass/task-comm-7.rs src/test/run-pass/task-comm-9.rs src/test/run-pass/task-comm-chan-nil.rs src/test/run-pass/task-spawn-move-and-copy.rs src/test/run-pass/task-stderr.rs src/test/run-pass/tcp-accept-stress.rs src/test/run-pass/tcp-connect-timeouts.rs src/test/run-pass/tempfile.rs src/test/run-pass/trait-bounds-in-arc.rs src/test/run-pass/trivial-message.rs src/test/run-pass/unique-send-2.rs src/test/run-pass/unique-send.rs src/test/run-pass/unwind-resource.rs
2015-01-02std: Stabilize the prelude moduleAlex Crichton-2/+3
This commit is an implementation of [RFC 503][rfc] which is a stabilization story for the prelude. Most of the RFC was directly applied, removing reexports. Some reexports are kept around, however: * `range` remains until range syntax has landed to reduce churn. * `Path` and `GenericPath` remain until path reform lands. This is done to prevent many imports of `GenericPath` which will soon be removed. * All `io` traits remain until I/O reform lands so imports can be rewritten all at once to `std::io::prelude::*`. This is a breaking change because many prelude reexports have been removed, and the RFC can be consulted for the exact list of removed reexports, as well as to find the locations of where to import them. [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0503-prelude-stabilization.md [breaking-change] Closes #20068
2014-12-29std: Second pass stabilization for `comm`Alex Crichton-2/+2
This commit is a second pass stabilization for the `std::comm` module, performing the following actions: * The entire `std::comm` module was moved under `std::sync::mpsc`. This movement reflects that channels are just yet another synchronization primitive, and they don't necessarily deserve a special place outside of the other concurrency primitives that the standard library offers. * The `send` and `recv` methods have all been removed. * The `send_opt` and `recv_opt` methods have been renamed to `send` and `recv`. This means that all send/receive operations return a `Result` now indicating whether the operation was successful or not. * The error type of `send` is now a `SendError` to implement a custom error message and allow for `unwrap()`. The error type contains an `into_inner` method to extract the value. * The error type of `recv` is now `RecvError` for the same reasons as `send`. * The `TryRecvError` and `TrySendError` types have had public reexports removed of their variants and the variant names have been tweaked with enum namespacing rules. * The `Messages` iterator is renamed to `Iter` This functionality is now all `#[stable]`: * `Sender` * `SyncSender` * `Receiver` * `std::sync::mpsc` * `channel` * `sync_channel` * `Iter` * `Sender::send` * `Sender::clone` * `SyncSender::send` * `SyncSender::try_send` * `SyncSender::clone` * `Receiver::recv` * `Receiver::try_recv` * `Receiver::iter` * `SendError` * `RecvError` * `TrySendError::{mod, Full, Disconnected}` * `TryRecvError::{mod, Empty, Disconnected}` * `SendError::into_inner` * `TrySendError::into_inner` This is a breaking change due to the modification of where this module is located, as well as the changing of the semantics of `send` and `recv`. Most programs just need to rename imports of `std::comm` to `std::sync::mpsc` and add calls to `unwrap` after a send or a receive operation. [breaking-change]
2014-12-29std: Return Result from RWLock/Mutex methodsAlex Crichton-5/+5
All of the current std::sync primitives have poisoning enable which means that when a task fails inside of a write-access lock then all future attempts to acquire the lock will fail. This strategy ensures that stale data whose invariants are possibly not upheld are never viewed by other tasks to help propagate unexpected panics (bugs in a program) among tasks. Currently there is no way to test whether a mutex or rwlock is poisoned. One method would be to duplicate all the methods with a sister foo_catch function, for example. This pattern is, however, against our [error guidelines][errors]. As a result, this commit exposes the fact that a task has failed internally through the return value of a `Result`. [errors]: https://github.com/rust-lang/rfcs/blob/master/text/0236-error-conventions.md#do-not-provide-both-result-and-fail-variants All methods now return a `LockResult<T>` or a `TryLockResult<T>` which communicates whether the lock was poisoned or not. In a `LockResult`, both the `Ok` and `Err` variants contains the `MutexGuard<T>` that is being returned in order to allow access to the data if poisoning is not desired. This also means that the lock is *always* held upon returning from `.lock()`. A new type, `PoisonError`, was added with one method `into_guard` which can consume the assertion that a lock is poisoned to gain access to the underlying data. This is a breaking change because the signatures of these methods have changed, often incompatible ways. One major difference is that the `wait` methods on a condition variable now consume the guard and return it in as a `LockResult` to indicate whether the lock was poisoned while waiting. Most code can be updated by calling `.unwrap()` on the return value of `.lock()`. [breaking-change]
2014-12-29std: Stabilize the prelude moduleAlex Crichton-2/+3
This commit is an implementation of [RFC 503][rfc] which is a stabilization story for the prelude. Most of the RFC was directly applied, removing reexports. Some reexports are kept around, however: * `range` remains until range syntax has landed to reduce churn. * `Path` and `GenericPath` remain until path reform lands. This is done to prevent many imports of `GenericPath` which will soon be removed. * All `io` traits remain until I/O reform lands so imports can be rewritten all at once to `std::io::prelude::*`. This is a breaking change because many prelude reexports have been removed, and the RFC can be consulted for the exact list of removed reexports, as well as to find the locations of where to import them. [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0503-prelude-stabilization.md [breaking-change] Closes #20068
2014-12-26Implement RaceBox for StdinReaderFlavio Percoco-1/+8
2014-12-26Make Send and Sync traits unsafeFlavio Percoco-2/+2
2014-12-26Require types to opt-in SyncFlavio Percoco-0/+4
2014-12-18Revise std::thread API to join by defaultAaron Turon-6/+2
This commit is part of a series that introduces a `std::thread` API to replace `std::task`. In the new API, `spawn` returns a `JoinGuard`, which by default will join the spawned thread when dropped. It can also be used to join explicitly at any time, returning the thread's result. Alternatively, the spawned thread can be explicitly detached (so no join takes place). As part of this change, Rust processes now terminate when the main thread exits, even if other detached threads are still running, moving Rust closer to standard threading models. This new behavior may break code that was relying on the previously implicit join-all. In addition to the above, the new thread API also offers some built-in support for building blocking abstractions in user space; see the module doc for details. Closes #18000 [breaking-change]
2014-12-18Fallout from new thread APIAaron Turon-1/+5
2014-12-18Remove rt::bookkeepingAaron Turon-2/+1
This commit removes the runtime bookkeeping previously used to ensure that all Rust tasks were joined before the runtime was shut down. This functionality will be replaced by an RAII style `Thread` API, that will also offer a detached mode. Since this changes the semantics of shutdown, it is a: [breaking-change]
2014-12-18libs: merge librustrt into libstdAaron Turon-3/+2
This commit merges the `rustrt` crate into `std`, undoing part of the facade. This merger continues the paring down of the runtime system. Code relying on the public API of `rustrt` will break; some of this API is now available through `std::rt`, but is likely to change and/or be removed very soon. [breaking-change]
2014-12-14Mostly rote conversion of `proc()` to `move||` (and occasionally `Thunk::new`)Niko Matsakis-2/+2
2014-12-13libstd: use unboxed closuresJorge Aparicio-3/+4
2014-12-05Fall out of the std::sync rewriteAlex Crichton-6/+15
2014-11-20Make most of std::rt privateAaron Turon-3/+3
Previously, the entire runtime API surface was publicly exposed, but that is neither necessary nor desirable. This commit hides most of the module, using librustrt directly as needed. The arrangement will need to be revisited when rustrt is pulled into std. [breaking-change]
2014-11-20Fallout from libgreen and libnative removalAaron Turon-1/+1
2014-11-08Runtime removal: refactor processAaron Turon-11/+0
This patch continues the runtime removal by moving and refactoring the process implementation into the new `sys` module. Because this eliminates APIs in `libnative` and `librustrt`, it is a: [breaking-change] This functionality is likely to be available publicly, in some form, from `std` in the future.
2014-11-08Runtime removal: refactor helper threadsAaron Turon-0/+142
This patch continues the runtime removal by moving libnative::io::helper_thread into sys::helper_signal and sys_common::helper_thread Because this eliminates APIs in `libnative` and `librustrt`, it is a: [breaking-change] This functionality is likely to be available publicly, in some form, from `std` in the future.