rust - https://github.com/rust-lang/rust

Age	Commit message (Collapse)	Author	Lines
2021-06-24	Use `#[non_exhaustive]` where appropriate	Jacob Pratt	-8/+6
	Due to the std/alloc split, it is not possible to make `alloc::collections::TryReserveError::AllocError` non-exhaustive without having an unstable, doc-hidden method to construct (which negates the benefits from `#[non_exhaustive]`.
2021-06-10	Specialize `io::Bytes::size_hint` for more types	Benoît du Garreau	-0/+13

2021-04-21	Replace all `fmt.pad` with `debug_struct`	Christiaan Dirkx	-3/+3

2021-01-31	Fix line length format	Xavientois	-1/+3

2021-01-31	Add space for proper indentation	Xavientois	-1/+1

2021-01-31	Implement SizeHint trait for BufReader, Emtpy, and Chain	Xavientois	-1/+7

2021-01-30	impl Seek for Empty	oberien	-1/+16
	Fix #78029
2020-11-14	Auto merge of #75272 - the8472:spec-copy, r=KodrAus	bors	-72/+1
	specialize io::copy to use copy_file_range, splice or sendfile Fixes #74426. Also covers #60689 but only as an optimization instead of an official API. The specialization only covers std-owned structs so it should avoid the problems with #71091 Currently linux-only but it should be generalizable to other unix systems that have sendfile/sosplice and similar. There is a bit of optimization potential around the syscall count. Right now it may end up doing more syscalls than the naive copy loop when doing short (<8KiB) copies between file descriptors. The test case executes the following: ``` [pid 103776] statx(3, "", AT_STATX_SYNC_AS_STAT\|AT_EMPTY_PATH, STATX_ALL, {stx_mask=STATX_ALL\|STATX_MNT_ID, stx_attributes=0, stx_mode=S_IFREG\|0644, stx_size=17, ...}) = 0 [pid 103776] write(4, "wxyz", 4) = 4 [pid 103776] write(4, "iklmn", 5) = 5 [pid 103776] copy_file_range(3, NULL, 4, NULL, 5, 0) = 5 ``` 0-1 `stat` calls to identify the source file type. 0 if the type can be inferred from the struct from which the FD was extracted 𝖬 `write` to drain the `BufReader`/`BufWriter` wrappers. only happen when buffers are present. 𝖬 ≾ number of wrappers present. If there is a write buffer it may absorb the read buffer contents first so only result in a single write. Vectored writes would also be an option but that would require more invasive changes to `BufWriter`. 𝖭 `copy_file_range`/`splice`/`sendfile` until file size, EOF or the byte limit from `Take` is reached. This should generally be much more efficient than the read-write loop and also have other benefits such as DMA offload or extent sharing. ## Benchmarks ``` OLD test io::tests::bench_file_to_file_copy ... bench: 21,002 ns/iter (+/- 750) = 6240 MB/s [ext4] test io::tests::bench_file_to_file_copy ... bench: 35,704 ns/iter (+/- 1,108) = 3671 MB/s [btrfs] test io::tests::bench_file_to_socket_copy ... bench: 57,002 ns/iter (+/- 4,205) = 2299 MB/s test io::tests::bench_socket_pipe_socket_copy ... bench: 142,640 ns/iter (+/- 77,851) = 918 MB/s NEW test io::tests::bench_file_to_file_copy ... bench: 14,745 ns/iter (+/- 519) = 8889 MB/s [ext4] test io::tests::bench_file_to_file_copy ... bench: 6,128 ns/iter (+/- 227) = 21389 MB/s [btrfs] test io::tests::bench_file_to_socket_copy ... bench: 13,767 ns/iter (+/- 3,767) = 9520 MB/s test io::tests::bench_socket_pipe_socket_copy ... bench: 26,471 ns/iter (+/- 6,412) = 4951 MB/s ```
2020-11-13	specialize io::copy to use copy_file_range, splice or sendfile	The8472	-72/+1
	Currently it only applies to linux systems. It can be extended to make use of similar syscalls on other unix systems.
2020-11-06	Add tracking issue	Benoît du Garreau	-3/+3

2020-11-06	Make some std::io functions `const`	Benoît du Garreau	-3/+6
	Includes: - io::Cursor::new - io::Cursor::get_ref - io::Cursor::position - io::empty - io::repeat - io::sink
2020-09-21	Rollup merge of #76275 - FedericoPonzi:immutable-write-impl-73836, r=dtolnay	ecstatic-morse	-0/+24
	Implementation of Write for some immutable ref structs Fixes #73836
2020-09-21	Updates stability attributes to the current nightly version	Federico Ponzi	-1/+1

2020-09-03	More implementations of Write for immutable refs	Federico Ponzi	-0/+24
	Fixes #73836
2020-09-02	Read: adjust a FIXME reference	Ralf Jung	-5/+8

2020-09-01	Auto merge of #76047 - Dylan-DPC:rename/maybe, r=RalfJung	bors	-4/+4
	rename get_{ref, mut} to assume_init_{ref,mut} in Maybeuninit References #63568 Rework with comments addressed from #66174 Have replaced most of the occurrences I've found, hopefully didn't miss out anything r? @RalfJung (thanks @danielhenrymantilla for the initial work on this)
2020-08-31	std: move "mod tests/benches" to separate files	Lzu Tao	-49/+3
	Also doing fmt inplace as requested.
2020-08-30	update fixmes	DPC	-1/+1

2020-08-29	rename get_{ref, mut} to assume_init_{ref,mut} in Maybeuninit	DPC	-3/+3

2020-08-18	Move to intra doc links for std::io	Alexis Bourget	-18/+15

2020-07-27	mv std libs to library/	mark	-0/+308