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Just modified the documentation for parse_bytes to make it more clear how the bytes were parsed (big endian) and to show an example of what it returned. I also added documentation for the to_str_bytes which previously had no documentation (besides one stackoverflow post).
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updating size_hints.
Fixes #13734 and #13759.
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The underlying I/O objects implement a good deal of various options here and
there for tuning network sockets and how they perform. Most of this is a relic
of "whatever libuv provides", but these options are genuinely useful.
It is unclear at this time whether these options should be well supported or
not, or whether they have correct names or not. For now, I believe it's better
to expose the functionality than to not, but all new methods are added with
an #[experimental] annotation.
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Clarifies the interaction of `is_dir`, `is_file` and `exists` with
symbolic links. Adds a convenience `lstat` function alongside of
`stat`. Removes references to conditions.
Closes issue #12583.
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Follow-up on issue #13297 and PR #13710. Instead of following the (confusing) C/C++ approach
of using `MIN_VALUE` for the smallest *positive* number, we introduce `MIN_POS_VALUE` (and
in the Float trait, `min_pos_value`) to represent this number.
This patch also removes a few remaining redundantly-defined constants that were missed last
time around.
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I decided to put architecture constants in another mod. They are not used, so a part of me is thinking of just getting rid of them altogether. The rest should be similar to what @brson wants.
Fixes #13536
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and arch.
Constants for other OS's and arch's must be defined manually.
[breaking-change]
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This adds support for connecting to a unix socket with a timeout (a named pipe
on windows), and accepting a connection with a timeout. The goal is to bring
unix pipes/named sockets back in line with TCP support for timeouts.
Similarly to the TCP sockets, all methods are marked #[experimental] due to
uncertainty about the type of the timeout argument.
This internally involved a good bit of refactoring to share as much code as
possible between TCP servers and pipe servers, but the core implementation did
not change drastically as part of this commit.
cc #13523
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These are the first successful snapshots after the LLVM upgrade, built with LLVM
that requires C++11
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Follow-up on issue #13297 and PR #13710. Instead of following the (confusing) C/C++ approach
of using `MIN_VALUE` for the smallest *positive* number, we introduce `MIN_POS_VALUE` (and
in the Float trait, `min_pos_value`) to represent this number.
This patch also removes a few remaining redundantly-defined constants that were missed last
time around.
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This adds support for connecting to a unix socket with a timeout (a named pipe
on windows), and accepting a connection with a timeout. The goal is to bring
unix pipes/named sockets back in line with TCP support for timeouts.
Similarly to the TCP sockets, all methods are marked #[experimental] due to
uncertainty about the type of the timeout argument.
This internally involved a good bit of refactoring to share as much code as
possible between TCP servers and pipe servers, but the core implementation did
not change drastically as part of this commit.
cc #13523
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The `walk_dir` iterator was simulating a queue using a vector (in particular, using `shift`),
leading to O(n^2) performance. Since the order was not well-specified (see issue #13411),
the simplest fix is to use the vector as a stack (and thus yield a depth-first traversal).
This patch does exactly that, and adds a test checking for depth-first behavior.
Note that the underlying `readdir` function does not specify any particular order, nor
does the system call it uses.
Closes #13411.
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The `walk_dir` iterator was simulating a queue using a vector (in particular, using `shift`),
leading to O(n^2) performance. Since the order was not well-specified (see issue #13411),
the simplest fix is to use the vector as a stack (and thus yield a depth-first traversal).
This patch does exactly that. It leaves the order as originally specified -- "some top-down
order" -- and adds a test to ensure a top-down traversal.
Note that the underlying `readdir` function does not specify any particular order, nor
does the system call it uses.
Closes #13411.
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This update brings a few months of changes, but primarily a fix for the
following situation.
When creating a handle to stdin, libuv used to set the stdin handle to
nonblocking mode. This would end up affect this stdin handle across all
processes that shared it, which mean that stdin become nonblocking for everyone
using the same stdin. On linux, this also affected *stdout* because stdin/stdout
roughly point at the same thing.
This problem became apparent when running the test suite manually on a local
computer. The stdtest suite (running with libgreen) would set stdout to
nonblocking mode (as described above), and then the next test suite would always
fail for a printing failure (because stdout was returning EAGAIN).
This has been fixed upstream, joyent/libuv@342e8c, and this update pulls in this
fix. This also brings us in line with a recently upstreamed libuv patch.
Closes #13336
Closes #13355
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Some of the constant values in std::f32 were incorrectly copied from
std::f64. More broadly, both modules defined their constants redundantly
in two places, which is what led to the bug. Moreover, the specs for
some of the constants were incorrect, even when the values were correct.
Closes #13297. Closes #11537.
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The constructor for `TaskBuilder` is being changed to an associated
function called `new` for consistency with the rest of the standard
library.
Closes #13666
[breaking-change]
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The constructor for `TaskBuilder` is being changed to an associated
function called `new` for consistency with the rest of the standard
library.
Closes #13666
[breaking-change]
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This adds experimental support for timeouts when accepting sockets through
`TcpAcceptor::accept`. This does not add a separate `accept_timeout` function,
but rather it adds a `set_timeout` function instead. This second function is
intended to be used as a hard deadline after which all accepts will never block
and fail immediately.
This idea was derived from Go's SetDeadline() methods. We do not currently have
a robust time abstraction in the standard library, so I opted to have the
argument be a relative time in millseconds into the future. I believe a more
appropriate argument type is an absolute time, but this concept does not exist
yet (this is also why the function is marked #[experimental]).
The native support is built on select(), similarly to connect_timeout(), and the
green support is based on channel select and a timer.
cc #13523
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This adds experimental support for timeouts when accepting sockets through
`TcpAcceptor::accept`. This does not add a separate `accept_timeout` function,
but rather it adds a `set_timeout` function instead. This second function is
intended to be used as a hard deadline after which all accepts will never block
and fail immediately.
This idea was derived from Go's SetDeadline() methods. We do not currently have
a robust time abstraction in the standard library, so I opted to have the
argument be a relative time in millseconds into the future. I believe a more
appropriate argument type is an absolute time, but this concept does not exist
yet (this is also why the function is marked #[experimental]).
The native support is built on select(), similarly to connect_timeout(), and the
green support is based on channel select and a timer.
cc #13523
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These are the first successful snapshots after the LLVM upgrade, built with LLVM
that requires C++11
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It is for internal use only and should not appear in docs.
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Some of the constant values in std::f32 were incorrectly copied from
std::f64. More broadly, both modules defined their constants redundantly
in two places, which is what led to the bug. Moreover, the specs for
some of the constants were incorrent, even when the values were correct.
Closes #13297. Closes #11537.
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This alters the borrow checker's requirements on invoking closures from
requiring an immutable borrow to requiring a unique immutable borrow. This means
that it is illegal to invoke a closure through a `&` pointer because there is no
guarantee that is not aliased. This does not mean that a closure is required to
be in a mutable location, but rather a location which can be proven to be
unique (often through a mutable pointer).
For example, the following code is unsound and is no longer allowed:
type Fn<'a> = ||:'a;
fn call(f: |Fn|) {
f(|| {
f(|| {})
});
}
fn main() {
call(|a| {
a();
});
}
There is no replacement for this pattern. For all closures which are stored in
structures, it was previously allowed to invoke the closure through `&self` but
it now requires invocation through `&mut self`.
The standard library has a good number of violations of this new rule, but the
fixes will be separated into multiple breaking change commits.
Closes #12224
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This fixes various issues throughout the standard distribution and tests.
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As with the previous commits, the Finally trait is primarily implemented for
closures, so the trait was modified from `&self` to `&mut self`. This will
require that any closure variable invoked with `finally` to be stored in a
mutable slot.
[breaking-change]
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This is similar to the previous commits to allow invocation of a closure through
a `&mut self` pointer because `&self` is disallowed. One of the primary
implementors of the CharEq trait is a closure type, which would not work if the
method continued to have `&self`.
In addition to changing mutability of the `matches` method, this modifies the
following methods from &CharEq to take a type which implements CharEq by value.
* trim_chars
* trim_left_chars
* trim_right_chars
Where these methods were previously invoked via
s.trim_chars(&'a')
it would now be invoked through
s.trim_chars('a')
[breaking-change]
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Many iterators go through a closure when dealing with the `idx` method, which
are invalid after the previous change (closures cannot be invoked through a `&`
pointer). This commit alters the `fn idx` method on the RandomAccessIterator
to take `&mut self` rather than `&self`.
[breaking-change]
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It is for internal use only and should not appear in docs.
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... and uint_macros.rs
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This exposes volatile versions of the memset/memmove/memcpy intrinsics.
The volatile parameter must be constant, so this can't simply be a
parameter to our intrinsics.
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Stack unwinding doesn't work yet, so this won't pass a lot of tests.
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This prevents unix sockets from remaining on the system all over the place, and
more closely mirrors the behavior of libuv and windows pipes.
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Removes the need for hacks to println! mutable slices, among other things.
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This pull request:
- Merges the `Round` trait into the `Float` trait, continuing issue #10387.
- Has floating point functions take their parameters by value.
- Cleans up the formatting and organisation in the definition and implementations of the `Float` trait.
More information on the breaking changes can be found in the commit messages.
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in uint_macros.rs
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This currently requires linking against a library like libquadmath (or
libgcc), because compiler-rt barely has any support for this and most
hardware does not yet have 128-bit precision floating point. For this
reason, it's currently hidden behind a feature gate.
When compiler-rt is updated to trunk, some tests can be added for
constant evaluation since there will be support for the comparison
operators.
Closes #13381
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uint_macros.rs
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This exposes volatile versions of the memset/memmove/memcpy intrinsics.
The volatile parameter must be constant, so this can't simply be a
parameter to our intrinsics.
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Was killing performance of selector matching in Servo.
r? @alexcrichton (or anyone)
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This prevents unix sockets from remaining on the system all over the place, and
more closely mirrors the behavior of libuv and windows pipes.
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Was killing performance of selector matching in Servo.
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