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Conflicts:
src/libcore/ops.rs
src/librustc_typeck/astconv.rs
src/libstd/io/mem.rs
src/libsyntax/parse/lexer/mod.rs
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Conflicts:
src/libstd/sync/mpsc/select.rs
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Conflicts:
src/libsyntax/parse/lexer/comments.rs
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Fixes #20943 and adds a test for it
r? @alexcrichton
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r? @alexcrichton
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Fixes #20943
Signed-off-by: Peter Atashian <retep998@gmail.com>
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Signed-off-by: Peter Atashian <retep998@gmail.com>
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This is a [breaking-change] since `std::dynamic_lib::dl` is now
private.
When `LoadLibraryW()` fails, original code called `errno()` to get error
code. However, there was local allocation of `Vec` before
`LoadLibraryW()`, and it drops before `errno()`, and the drop
(deallocation) changed `errno`! Therefore `dynamic_lib::open()` thought
it always succeeded.
This commit fixes the issue.
This commit also sets Windows error mode during `LoadLibrary()` to
prevent "dll load failed" dialog.
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**The implementation is a direct adaptation of libcxx's condition_variable implementation.**
I also added a wait_timeout_with method, which matches the second overload in C++'s condition_variable. The implementation right now is kind of dumb but it works. There is an outstanding issue with it: as is it doesn't support the use case where a user doesn't care about poisoning and wants to continue through poison.
r? @alexcrichton @aturon
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**The implementation is a direct adaptation of libcxx's
condition_variable implementation.**
pthread_cond_timedwait uses the non-monotonic system clock. It's
possible to change the clock to a monotonic via pthread_cond_attr, but
this is incompatible with static initialization. To deal with this, we
calculate the timeout using the system clock, and maintain a separate
record of the start and end times with a monotonic clock to be used for
calculation of the return value.
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Signed-off-by: Peter Atashian <retep998@gmail.com>
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Change any use of AtomicInt to AtomicIsize and AtomicUint to AtomicUsize
Closes #20893
[breaking-change]
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This gets rid of the 'experimental' level, removes the non-staged_api
case (i.e. stability levels for out-of-tree crates), and lets the
staged_api attributes use 'unstable' and 'deprecated' lints.
This makes the transition period to the full feature staging design
a bit nicer.
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Conflicts:
src/libcollections/vec.rs
src/libcore/fmt/mod.rs
src/librustc/lint/builtin.rs
src/librustc/session/config.rs
src/librustc_trans/trans/base.rs
src/librustc_trans/trans/context.rs
src/librustc_trans/trans/type_.rs
src/librustc_typeck/check/_match.rs
src/librustdoc/html/format.rs
src/libsyntax/std_inject.rs
src/libsyntax/util/interner.rs
src/test/compile-fail/mut-pattern-mismatched.rs
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This commit aims to prepare the `std::hash` module for alpha by formalizing its
current interface whileholding off on adding `#[stable]` to the new APIs. The
current usage with the `HashMap` and `HashSet` types is also reconciled by
separating out composable parts of the design. The primary goal of this slight
redesign is to separate the concepts of a hasher's state from a hashing
algorithm itself.
The primary change of this commit is to separate the `Hasher` trait into a
`Hasher` and a `HashState` trait. Conceptually the old `Hasher` trait was
actually just a factory for various states, but hashing had very little control
over how these states were used. Additionally the old `Hasher` trait was
actually fairly unrelated to hashing.
This commit redesigns the existing `Hasher` trait to match what the notion of a
`Hasher` normally implies with the following definition:
trait Hasher {
type Output;
fn reset(&mut self);
fn finish(&self) -> Output;
}
This `Hasher` trait emphasizes that hashing algorithms may produce outputs other
than a `u64`, so the output type is made generic. Other than that, however, very
little is assumed about a particular hasher. It is left up to implementors to
provide specific methods or trait implementations to feed data into a hasher.
The corresponding `Hash` trait becomes:
trait Hash<H: Hasher> {
fn hash(&self, &mut H);
}
The old default of `SipState` was removed from this trait as it's not something
that we're willing to stabilize until the end of time, but the type parameter is
always required to implement `Hasher`. Note that the type parameter `H` remains
on the trait to enable multidispatch for specialization of hashing for
particular hashers.
Note that `Writer` is not mentioned in either of `Hash` or `Hasher`, it is
simply used as part `derive` and the implementations for all primitive types.
With these definitions, the old `Hasher` trait is realized as a new `HashState`
trait in the `collections::hash_state` module as an unstable addition for
now. The current definition looks like:
trait HashState {
type Hasher: Hasher;
fn hasher(&self) -> Hasher;
}
The purpose of this trait is to emphasize that the one piece of functionality
for implementors is that new instances of `Hasher` can be created. This
conceptually represents the two keys from which more instances of a
`SipHasher` can be created, and a `HashState` is what's stored in a
`HashMap`, not a `Hasher`.
Implementors of custom hash algorithms should implement the `Hasher` trait, and
only hash algorithms intended for use in hash maps need to implement or worry
about the `HashState` trait.
The entire module and `HashState` infrastructure remains `#[unstable]` due to it
being recently redesigned, but some other stability decision made for the
`std::hash` module are:
* The `Writer` trait remains `#[experimental]` as it's intended to be replaced
with an `io::Writer` (more details soon).
* The top-level `hash` function is `#[unstable]` as it is intended to be generic
over the hashing algorithm instead of hardwired to `SipHasher`
* The inner `sip` module is now private as its one export, `SipHasher` is
reexported in the `hash` module.
And finally, a few changes were made to the default parameters on `HashMap`.
* The `RandomSipHasher` default type parameter was renamed to `RandomState`.
This renaming emphasizes that it is not a hasher, but rather just state to
generate hashers. It also moves away from the name "sip" as it may not always
be implemented as `SipHasher`. This type lives in the
`std::collections::hash_map` module as `#[unstable]`
* The associated `Hasher` type of `RandomState` is creatively called...
`Hasher`! This concrete structure lives next to `RandomState` as an
implemenation of the "default hashing algorithm" used for a `HashMap`. Under
the hood this is currently implemented as `SipHasher`, but it draws an
explicit interface for now and allows us to modify the implementation over
time if necessary.
There are many breaking changes outlined above, and as a result this commit is
a:
[breaking-change]
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This commit aims to prepare the `std::hash` module for alpha by formalizing its
current interface whileholding off on adding `#[stable]` to the new APIs. The
current usage with the `HashMap` and `HashSet` types is also reconciled by
separating out composable parts of the design. The primary goal of this slight
redesign is to separate the concepts of a hasher's state from a hashing
algorithm itself.
The primary change of this commit is to separate the `Hasher` trait into a
`Hasher` and a `HashState` trait. Conceptually the old `Hasher` trait was
actually just a factory for various states, but hashing had very little control
over how these states were used. Additionally the old `Hasher` trait was
actually fairly unrelated to hashing.
This commit redesigns the existing `Hasher` trait to match what the notion of a
`Hasher` normally implies with the following definition:
trait Hasher {
type Output;
fn reset(&mut self);
fn finish(&self) -> Output;
}
This `Hasher` trait emphasizes that hashing algorithms may produce outputs other
than a `u64`, so the output type is made generic. Other than that, however, very
little is assumed about a particular hasher. It is left up to implementors to
provide specific methods or trait implementations to feed data into a hasher.
The corresponding `Hash` trait becomes:
trait Hash<H: Hasher> {
fn hash(&self, &mut H);
}
The old default of `SipState` was removed from this trait as it's not something
that we're willing to stabilize until the end of time, but the type parameter is
always required to implement `Hasher`. Note that the type parameter `H` remains
on the trait to enable multidispatch for specialization of hashing for
particular hashers.
Note that `Writer` is not mentioned in either of `Hash` or `Hasher`, it is
simply used as part `derive` and the implementations for all primitive types.
With these definitions, the old `Hasher` trait is realized as a new `HashState`
trait in the `collections::hash_state` module as an unstable addition for
now. The current definition looks like:
trait HashState {
type Hasher: Hasher;
fn hasher(&self) -> Hasher;
}
The purpose of this trait is to emphasize that the one piece of functionality
for implementors is that new instances of `Hasher` can be created. This
conceptually represents the two keys from which more instances of a
`SipHasher` can be created, and a `HashState` is what's stored in a
`HashMap`, not a `Hasher`.
Implementors of custom hash algorithms should implement the `Hasher` trait, and
only hash algorithms intended for use in hash maps need to implement or worry
about the `HashState` trait.
The entire module and `HashState` infrastructure remains `#[unstable]` due to it
being recently redesigned, but some other stability decision made for the
`std::hash` module are:
* The `Writer` trait remains `#[experimental]` as it's intended to be replaced
with an `io::Writer` (more details soon).
* The top-level `hash` function is `#[unstable]` as it is intended to be generic
over the hashing algorithm instead of hardwired to `SipHasher`
* The inner `sip` module is now private as its one export, `SipHasher` is
reexported in the `hash` module.
And finally, a few changes were made to the default parameters on `HashMap`.
* The `RandomSipHasher` default type parameter was renamed to `RandomState`.
This renaming emphasizes that it is not a hasher, but rather just state to
generate hashers. It also moves away from the name "sip" as it may not always
be implemented as `SipHasher`. This type lives in the
`std::collections::hash_map` module as `#[unstable]`
* The associated `Hasher` type of `RandomState` is creatively called...
`Hasher`! This concrete structure lives next to `RandomState` as an
implemenation of the "default hashing algorithm" used for a `HashMap`. Under
the hood this is currently implemented as `SipHasher`, but it draws an
explicit interface for now and allows us to modify the implementation over
time if necessary.
There are many breaking changes outlined above, and as a result this commit is
a:
[breaking-change]
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Fix misspelled comments.
Reviewed-by: steveklabnik
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I cleaned up comments prior to the 1.0 alpha release.
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Believe or not, `CreateProcess()` is racy if several threads create
child processes: [0], [1], [2].
This caused some tests show crash dialogs during
`make check-stage#-rpass`.
More explanation:
On Windows, `SetErrorMode()` controls display of error dialogs: it
accepts new error mode and returns old error mode.
The error mode is process-global and automatically inherited to child
process when created.
MSYS2 bash shell internally sets it to not show error dialogs, therefore
`make check-stage#-rpass` should not show them either.
However, [1] says that `CreateProcess()` internally invokes
`SetErrorMode()` twice: at first it sets mode `0x8001` and saves
original mode, and at second it restores original mode.
So if two threads simultaneously call `CreateProcess()`, the first
thread sets error mode to `0x8001` then the second thread recognizes
that current error mode is `0x8001`. Therefore, The second thread will
create process with wrong error mode.
This really occurs inside `compiletest`: it creates several processes on
each thread, so some `run-pass` tests are invoked with wrong error mode
therefore show crash dialog.
This commit adds `StaticMutex` for `CreateProcess()` call. This seems
to fix the "dialog annoyance" issue.
[0]: http://support.microsoft.com/kb/315939
[1]: https://code.google.com/p/nativeclient/issues/detail?id=2968
[2]: https://ghc.haskell.org/trac/ghc/ticket/2650
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This calculates the width and height using the bounding box of the window in the buffer. Bounding box coordinates are inclusive so I have to add 1 to both dimensions.
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Believe or not, `CreateProcess()` is racy if several threads create
child processes: [0], [1], [2].
This caused some tests show crash dialogs during
`make check-stage#-rpass`.
More explanation:
On Windows, `SetErrorMode()` controls display of error dialogs: it
accepts new error mode and returns old error mode.
The error mode is process-global and automatically inherited to child
process when created.
MSYS2 bash shell internally sets it to not show error dialogs, therefore
`make check-stage#-rpass` should not show them either.
However, [1] says that `CreateProcess()` internally invokes
`SetErrorMode()` twice: at first it sets mode `0x8001` and saves
original mode, and at second it restores original mode.
So if two threads simultaneously call `CreateProcess()`, the first
thread sets error mode to `0x8001` then the second thread recognizes
that current error mode is `0x8001`. Therefore, The second thread will
create process with wrong error mode.
This really occurs inside `compiletest`: it creates several processes on
each thread, so some `run-pass` tests are invoked with wrong error mode
therefore show crash dialog.
This commit adds `StaticMutex` for `CreateProcess()` call. This seems
to fix the "dialog annoyance" issue.
[0]: http://support.microsoft.com/kb/315939
[1]: https://code.google.com/p/nativeclient/issues/detail?id=2968
[2]: https://ghc.haskell.org/trac/ghc/ticket/2650
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Signed-off-by: Peter Atashian <retep998@gmail.com>
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This commit is an implementation of [RFC 494][rfc] which removes the entire
`std::c_vec` module and redesigns the `std::c_str` module as `std::ffi`.
[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0494-c_str-and-c_vec-stability.md
The interface of the new `CString` is outlined in the linked RFC, the primary
changes being:
* The `ToCStr` trait is gone, meaning the `with_c_str` and `to_c_str` methods
are now gone. These two methods are replaced with a `CString::from_slice`
method.
* The `CString` type is now just a wrapper around `Vec<u8>` with a static
guarantee that there is a trailing nul byte with no internal nul bytes. This
means that `CString` now implements `Deref<Target = [c_char]>`, which is where
it gains most of its methods from. A few helper methods are added to acquire a
slice of `u8` instead of `c_char`, as well as including a slice with the
trailing nul byte if necessary.
* All usage of non-owned `CString` values is now done via two functions inside
of `std::ffi`, called `c_str_to_bytes` and `c_str_to_bytes_with_nul`. These
functions are now the one method used to convert a `*const c_char` to a Rust
slice of `u8`.
Many more details, including newly deprecated methods, can be found linked in
the RFC. This is a:
[breaking-change]
Closes #20444
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This removes a large array of deprecated functionality, regardless of how
recently it was deprecated. The purpose of this commit is to clean out the
standard libraries and compiler for the upcoming alpha release.
Some notable compiler changes were to enable warnings for all now-deprecated
command line arguments (previously the deprecated versions were silently
accepted) as well as removing deriving(Zero) entirely (the trait was removed).
The distribution no longer contains the libtime or libregex_macros crates. Both
of these have been deprecated for some time and are available externally.
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Conflicts:
src/libstd/rt/exclusive.rs
src/libstd/sync/barrier.rs
src/libstd/sys/unix/pipe.rs
src/test/bench/shootout-binarytrees.rs
src/test/bench/shootout-fannkuch-redux.rs
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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
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Now that it's been removed from the prelude, we need to treat things differently.
Fixes #17967
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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
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This pass performs a second pass of stabilization through the `std::sync`
module, avoiding modules/types that are being handled in other PRs (e.g.
mutexes, rwlocks, condvars, and channels).
The following items are now stable
* `sync::atomic`
* `sync::atomic::ATOMIC_BOOL_INIT` (was `INIT_ATOMIC_BOOL`)
* `sync::atomic::ATOMIC_INT_INIT` (was `INIT_ATOMIC_INT`)
* `sync::atomic::ATOMIC_UINT_INIT` (was `INIT_ATOMIC_UINT`)
* `sync::Once`
* `sync::ONCE_INIT`
* `sync::Once::call_once` (was `doit`)
* C == `pthread_once(..)`
* Boost == `call_once(..)`
* Windows == `InitOnceExecuteOnce`
* `sync::Barrier`
* `sync::Barrier::new`
* `sync::Barrier::wait` (now returns a `bool`)
* `sync::Semaphore::new`
* `sync::Semaphore::acquire`
* `sync::Semaphore::release`
The following items remain unstable
* `sync::SemaphoreGuard`
* `sync::Semaphore::access` - it's unclear how this relates to the poisoning
story of mutexes.
* `sync::TaskPool` - the semantics of a failing task and whether a thread is
re-attached to a thread pool are somewhat unclear, and the
utility of this type in `sync` is question with respect to
the jobs of other primitives. This type will likely become
stable or move out of the standard library over time.
* `sync::Future` - futures as-is have yet to be deeply re-evaluated with the
recent core changes to Rust's synchronization story, and will
likely become stable in the future but are unstable until
that time comes.
[breaking-change]
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This reverts commit 9e224c2bf18ebf8f871efb2e1aba43ed7970ebb7.
Conflicts:
src/libstd/sys/windows/os.rs
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