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2023-02-27Rollup merge of #107110 - strega-nil:mbtwc-wctmb, r=ChrisDentonMatthias Krüger-29/+77
[stdio][windows] Use MBTWC and WCTMB `MultiByteToWideChar` and `WideCharToMultiByte` are extremely well optimized, and therefore should probably be used when we know we can (specifically in the Windows stdio stuff). Fixes #107092
2023-02-25[stdio][windows] Use MBTWC and WCTMBNicole Mazzuca-29/+77
2023-02-23Fix `is_terminal`'s handling of long paths on Windows.Dan Gohman-19/+21
As reported in sunfishcode/is-terminal#18, there are situations where `GetFileInformationByHandleEx` can write a file name length that is longer than the provided buffer. To avoid deferencing memory past the end of the buffer, use a bounds-checked function to form a slice to the buffer and handle the out-of-bounds case. This ports the fix from sunfishcode/is-terminal#19 to std's `is_terminal` implementation.
2023-02-22Quote more batch file argumentsChris Denton-1/+10
Make sure to quote batch file arguments that contain command prompt special characters. Additionally add `/d` command line parameter to disable any commands that may change the way variable expansion works.
2023-02-14Revert to using `RtlGenRandom`Chris Denton-103/+31
This is required due to `BCryptGenRandom` failing to load the necessary dll on some systems.
2023-02-13Add another error to Windows file open fallbackalesito85-1/+6
Added another error to be processed in fallback Solution suggested by Chris Denton https://github.com/nushell/nushell/issues/6857#issuecomment-1426847135
2023-02-12Auto merge of #105671 - lukas-code:depreciate-char, r=scottmcmbors-2/+1
Use associated items of `char` instead of freestanding items in `core::char` The associated functions and constants on `char` have been stable since 1.52 and the freestanding items have soft-deprecated since 1.62 (https://github.com/rust-lang/rust/pull/95566). This PR ~~marks them as "deprecated in future", similar to the integer and floating point modules (`core::{i32, f32}` etc)~~ replaces all uses of `core::char::*` with `char::*` to prepare for future deprecation of `core::char::*`.
2023-02-10Zero the `REPARSE_MOUNTPOINT_DATA_BUFFER` headerChris Denton-0/+2
Makes sure the full header is correctly initialized, including reserve parameters.
2023-01-28Replace libc::{type} with crate::ffi::{type}Ayush Singh-1/+1
Replace libc::{type} imports with crate::ffi::{type} outside of `std::sys` and `std::os`. Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
2023-01-17refactor[std]: do not use box syntaxjoboet-1/+1
2023-01-14Remove various double spaces in source comments.André Vennberg-2/+2
2023-01-14Use associated items of `char` instead of freestanding items in `core::char`Lukas Markeffsky-2/+1
2022-12-30std: rename `Parker::new` to `Parker::new_in_place`, add safe `Parker::new` ↵joboet-1/+1
constructor for SGX
2022-12-29std: unify id-based thread parking implementationsjoboet-1/+1
2022-12-11Implement blocking outputAyush Singh-0/+5
This allows decoupling `Command::spawn` and `Command::output`. This is useful for targets which do support launching programs in blocking mode but do not support multitasking (Eg: UEFI). This was originally conceived when working on https://github.com/rust-lang/rust/pull/100316 Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
2022-12-08Add read_to_end for AnonPipeAyush Singh-1/+5
Add `read_to_end` method for `sys::{target}::pipe::AnonPipe`. This allows having a more optimized version of `read_to_end` for ChildStdout. Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
2022-12-07Auto merge of #103459 - ChrisDenton:propagate-nulls, r=thomccbors-14/+20
Pass on null handle values to child process Fixes #101645 In Windows, stdio handles are (semantically speaking) `Option<Handle>` where `Handle` is a non-zero value. When spawning a process with `Stdio::Inherit`, Rust currently turns zero values into `-1` values. This has the unfortunate effect of breaking console subprocesses (which typically need stdio) that are spawned from gui applications (that lack stdio by default) because the console process won't be assigned handles from the newly created console (as they usually would in that situation). Worse, `-1` is actually [a valid handle](https://doc.rust-lang.org/std/os/windows/io/struct.OwnedHandle.html) which means "the current process". So if a console process, for example, waits on stdin and it has a `-1` value then the process will end up waiting on itself. This PR fixes it by propagating the nulls instead of converting them to `-1`. While I think the current behaviour is a mistake, changing it (however justified) is an API change so I think this PR should at least have some input from t-libs-api. So choosing at random... r? `@joshtriplett`
2022-12-06Don't set `STARTF_USESTDHANDLES` if none are setChris Denton-7/+15
2022-12-01Auto merge of #104160 - Ayush1325:windows-args, r=m-ou-sebors-52/+2
Extract WStrUnits to sys_common::wstr This commit extracts WStrUnits from sys::windows::args to sys_common::wstr. This allows using the same structure for other targets which use wtf8 (example UEFI). This was originally a part of https://github.com/rust-lang/rust/pull/100316 Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
2022-11-28Extract WStrUnits to sys_common::wstrAyush Singh-52/+2
This commit extracts WStrUnits from sys::windows::args to sys_common::wstr. This allows using the same structure for other targets which use wtf8 (example UEFI). This was originally a part of https://github.com/rust-lang/rust/pull/100316 Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
2022-11-18Handle the case that even the filename array is unaligned.Thom Chiovoloni-5/+14
2022-11-17Don't assume `FILE_ID_BOTH_DIR_INFO` will be alignedThom Chiovoloni-5/+9
2022-11-06std: remove lock wrappers in `sys_common`joboet-26/+21
2022-11-05Rollup merge of #103995 - SUPERCILEX:typos, r=Dylan-DPCDylan DPC-5/+6
Small round of typo fixes
2022-11-04Small round of typo fixesAlex Saveau-5/+6
Signed-off-by: Alex Saveau <saveau.alexandre@gmail.com>
2022-10-27Use stdio in UWP appsChris Denton-120/+28
This has been supported since Windows 10.0.16299. See https://learn.microsoft.com/en-us/uwp/win32-and-com/win32-apis#apis-from-api-ms-win-core-console-l1-1-0dll
2022-10-24Pass on null handle values to child processChris Denton-7/+5
2022-10-21Reduce false positives in msys2 detectionChris Denton-2/+12
This checks that: * the handle is a pipe * the pipe's file name starts with "msys-" or "cygwin-" rather than looking in the full path.
2022-10-15Auto merge of #100579 - joboet:sync_mutex_everywhere, r=thomccbors-3/+3
std: use `sync::Mutex` for internal statics Since `sync::Mutex` is now `const`-constructible, it can be used for internal statics, removing the need for `sys_common::StaticMutex`. This adds some extra allocations on platforms which need to box their mutexes (currently SGX and some UNIX), but these will become unnecessary with the lock improvements tracked in #93740. I changed the program argument implementation on Hermit, it does not need `Mutex` but can use atomics like some UNIX systems (ping `@mkroening` `@stlankes).`
2022-10-15Use Align8 to avoid misalignment if the allocator or Vec doesn't align ↵Josh Triplett-7/+7
allocations
2022-10-15Rewrite FILE_NAME_INFO handling to avoid enlarging slice referenceJosh Triplett-4/+4
Rather than referencing a slice's pointer and then creating a new slice with a longer length, offset from the base structure pointer instead. This makes some choices of Rust semantics happier.
2022-10-15Make is_terminal fail fast if a process has no console at allJosh Triplett-1/+9
If a process has no console, it'll have NULL in place of a console handle, so return early with `false` in that case without making any OS calls.
2022-10-15Add `IsTerminal` trait to determine if a descriptor or handle is a terminalJosh Triplett-0/+67
The UNIX and WASI implementations use `isatty`. The Windows implementation uses the same logic the `atty` crate uses, including the hack needed to detect msys terminals. Implement this trait for `File` and for `Stdin`/`Stdout`/`Stderr` and their locked counterparts on all platforms. On UNIX and WASI, implement it for `BorrowedFd`/`OwnedFd`. On Windows, implement it for `BorrowedHandle`/`OwnedHandle`. Based on https://github.com/rust-lang/rust/pull/91121 Co-authored-by: Matt Wilkinson <mattwilki17@gmail.com>
2022-10-13std: use `sync::Mutex` for internal staticsjoboet-3/+3
2022-10-13Auto merge of #102655 - joboet:windows_tls_opt, r=ChrisDentonbors-73/+193
Optimize TLS on Windows This implements the suggestion in the current TLS code to embed the linked list of destructors in the `StaticKey` structure to save allocations. Additionally, locking is avoided when no destructor needs to be run. By using one Windows-provided `Once` per key instead of a global lock, locking is more finely-grained (this unblocks #100579).
2022-10-08std: optimize TLS on Windowsjoboet-73/+193
2022-10-01`SetFileTime` doesn't allow setting the file time to `0xFFFF_FFFF_FFFF_FFFF`beetrees-0/+8
2022-09-24Rollup merge of #102044 - ChrisDenton:BCrypt-system-rand, r=thomccMatthias Krüger-53/+29
Remove `RtlGenRandom` (take two) First try to use the system preferred RNG but if that fails (e.g. due to a broken system configuration) then fallback to manually opening an algorithm handle.
2022-09-20Auto merge of #100581 - joboet:sync_rwlock_everywhere, r=thomccbors-1/+1
std: use `sync::RwLock` for internal statics Since `sync::RwLock` is now `const`-constructible, it can be used for internal statics, removing the need for `sys_common::StaticRwLock`. This adds some extra allocations on platforms which need to box their locks (currently SGX and some UNIX), but these will become unnecessary with the lock improvements tracked in #93740.
2022-09-20Remove `RtlGenRandom` (take two)Chris Denton-53/+29
First try to use the system preferred RNG but if that fails (e.g. due to a broken system configuration) then fallback to manually opening an algorithm handle.
2022-09-19std: use `sync::RwLock` for internal staticsjoboet-1/+1
2022-09-10Explicitly link kernel32.lib from allocChris Denton-0/+1
2022-09-09Rollup merge of #101366 - ChrisDenton:unc-forward-slash, r=m-ou-seDylan DPC-18/+20
Restore old behaviour on broken UNC paths This fixes #101358 by restoring the behaviour from previous stable Rust versions. I'm not convinced this is ultimately right but I think it's less wrong and maybe this should be backported to beta? r? libs
2022-09-07Auto merge of #101476 - ChrisDenton:BCryptRandom-fix, r=thomccbors-20/+88
Open a BCrypt algorithm handle Fixes #101474, supplants #101456. Replaces use of a pseduo handle with manually opening a algorithm handle. Most interesting thing here is the atomics. r? `@thomcc`
2022-09-07Don't break windows/rand for miriChris Denton-0/+12
2022-09-06Open a BCrypt algorithm handleChris Denton-20/+76
2022-09-06Fix compile errors for uwp-windows-msvc targetsChris Denton-1/+1
2022-09-04Auto merge of #100576 - joboet:movable_const_remutex, r=Mark-Simulacrumbors-2/+0
Make `ReentrantMutex` movable and `const` As `MovableMutex` is now `const`, it can be used to simplify the implementation and interface of the internal reentrant mutex type. Consequently, the standard error stream does not need to be wrapped in `OnceLock` and `OnceLock::get_or_init_pin()` can be removed.
2022-09-03std: make `ReentrantMutex` movable and `const`; simplify `Stdout` initializationjoboet-2/+0
2022-09-03Restore old behaviour on broken UNC pathsChris Denton-18/+20
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