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* Remove a redundant closure.
* Comparison with null
* Manual implementation of find
* Suppress a false positive
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Signed-off-by: Costin-Robert Sin <sin.costinrobert@gmail.com>
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1739: ppoll: make sigmask parameter optional r=rtzoeller a=stefano-garzarella
ppoll(2) supports 'sigmask' as NULL. In that case no signal mask
manipulation is performed.
Let's make `sigmask` parameter of `nix::poll::ppoll` optional
to allow that behaviour.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Co-authored-by: Stefano Garzarella <sgarzare@redhat.com>
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ppoll(2) supports 'sigmask' as NULL. In that case no signal mask
manipulation is performed.
Let's make `sigmask` parameter of `nix::poll::ppoll` optional
to allow that behaviour.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
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1735: Cleanup cfg blocks r=asomers a=rtzoeller
Remove obsolete references to target_env = wasi, target_os = nacl, target_os = osx, and a typo'd target_os = fushsia that didn't compile when fixed.
- target_env = wasi is dead: https://github.com/rust-lang/rust/pull/60117
- target_os = nacl is dead: https://github.com/rust-lang/rust/pull/45041
- target_os = osx is dead, but I can't find a link.
Found while exploring `--check-cfg`, as mentioned in #1734.
Co-authored-by: Ryan Zoeller <rtzoeller@rtzoeller.com>
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It has never actually executed its command, so the only reason that it
ever worked is that on most systems there are usually processes starting
and exiting all the time.
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Remove obsolete references to target_env = wasi, target_os = nacl,
target_os = osx, and a typo'd target_os = fushsia that didn't compile
when fixed.
- target_env = wasi is dead: https://github.com/rust-lang/rust/pull/60117
- target_os = nacl is dead: https://github.com/rust-lang/rust/pull/45041
- target_os = osx is dead, but I can't find a link.
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* enabled as much functionality and defines that match
updated libc definitions for haiku
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The existing AIO implementation has some problems:
1) The in_progress field is checked at runtime, not compile time.
2) The mutable field is checked at runtime, not compile time.
3) A downstream lio_listio user must store extra state to track whether
the whole operation is partially, completely, or not at all
submitted.
4) Nix does heap allocation itself, rather than allowing the caller to
choose it. This can result in double (or triple, or quadruple)
boxing.
5) There's no easy way to use lio_listio to submit multiple operations with
a single syscall, but poll each individually.
6) The lio_listio usage is far from transparent and zero-cost.
7) No aio_readv or aio_writev support.
8) priority has type c_int; should be i32
9) aio_return should return a usize instead of an isize, since it only
uses negative values to indicate errors, which Rust represents via
the Result type.
This rewrite solves several problems:
1) Unsolved. I don't think it can be solved without something like
C++'s guaranteed type elision. It might require changing the
signature of Future::poll too.
2) Solved.
3) Solved, by the new in_progress method and by removing the complicated
lio_listio resubmit code.
4) Solved.
5) Solved.
6) Solved, by removing the lio_listo resubmit code. It can be
reimplemented downstream if necessary. Or even in Nix, but it
doesn't fit Nix's theme of zero-cost abstractions.
7) Solved.
8) Solved.
9) Solved.
The rewrite includes functions that don't work on FreeBSD, so add CI
testing for FreeBSD 14 too.
By default only enable tests that will pass on FreeBSD 12.3. But run a
CI job on FreeBSD 14 and set a flag that will enable such tests.
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Fixes #1710
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Upgrade sysctl dev-dependency to 0.4 and handle its breaking API changes.
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1643: Replace the IoVec struct with IoSlice and IoSliceMut from the standard library r=asomers a=notgull
As per discussion in #1637, the `IoVec<&[u8]>` and `IoVec<&mut [u8]>` types have been replaced with `std::io::IoSlice` and `IoSliceMut`, respectively. Notable changes made in this pull request include:
- The complete replacement of `IoVec` with `IoSlice*` types in both public API, private API, and tests.
- Replacing `IoVec` with `IoSlice` in docs.
- Replacing `&[IoVec<&mut [u8]>]` with `&mut [IoSliceMut]`, note that the slice requires a mutable reference now. This is how it's done in the standard library, and there might be a soundness issue in doing it the other way.
Resolves #1637
Co-authored-by: not_a_seagull <notaseagull048@gmail.com>
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IP_DONTFRAG: iOS, macOS
IPV6_DONTFRAG: android, iOS, linux and macOS
Test: `cargo test --test test dontfrag_opts`
Some CI tests running ENOPROTOOPT are disabled (qemu-based).
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This fixes several issues with the current `uname` bindings:
- Do not ignore `uname` errors; at least on glibc `uname` can fail,
so now it returns a `Result` instead of assuming that the call
will always succeed.
- Do not assume `uname` will initialize every member of `utsname`;
not every implementation initializes every field, so internally
the struct is now zero-initialized.
- Do not blindly assume strings returned by `uname` will always be valid UTF-8;
`UtsName`'s accessors will now return `&OsStr`s instead of `&str`s.
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Because they're redundant with types in the standard library.
Fixes #1681
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The SockAddr enum is quite large, and the user must allocate space for
the whole thing even though he usually knows what type he needs.
Furthermore, thanks to the sa_family field, the sockaddr types are
basically an enum even in C.
So replace the ungainly enum with a SockaddrLike trait implemented by
all sockaddr types and a SockaddrStorage union that has safe accessors.
Also, deprecate InetAddr, which only existed to support SockAddr.
Supplants #1504
Fixes #1544
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Fixes #1666
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waitid() has a number of additional features that waitpid() is missing:
- WNOWAIT is only accepted for waitid() on Linux (and possibly other
platforms)
- Support for waiting on PID file descriptors on Linux
For now support is added for all platforms with waitid() that have proper
siginfo_t support in libc. NetBSD support is currently a work in progress
[1].
Tests for the signal/exit code are currently skipped on MIPS platforms due
to bugs in qemu-user's translation of siginfo_t (fixed in [2] and [3]; the
second fix is not in a released qemu version yet).
[1] https://github.com/rust-lang/libc/pull/2476
[2] https://lists.nongnu.org/archive/html/qemu-devel/2021-01/msg04810.html
[3] https://lists.nongnu.org/archive/html/qemu-devel/2021-10/msg05433.html
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On some platforms, mqd_t is a pointer. That means code like the below
can trigger a segfault. Fix it by defining a Newtype around mqd_t that
prevents use-after-free and dangling pointer scenarios.
```rust
fn invalid_mqd_t() {
let mqd: libc::mqd_t = std::ptr::null_mut();
mq_close(mqd).unwrap();
}
```
Also, get test coverage for mqueue in CI on FreeBSD.
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1630: Change port used by test_txtime to avoid conflict r=asomers a=rtzoeller
The socket tests request specific ports, and `test_timestamping` and `test_txtime` are currently conflicting in the port they request.
This leads to the second of the tests failing with `EADDRINUSE` when run locally.
Co-authored-by: Ryan Zoeller <rtzoeller@rtzoeller.com>
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The previous documentation described the default behavior, rather than
the behavior when the flag was set.
Also fix a test which is failing due to passing this flag erroneously.
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1624: Fix mq tests on NetBSD and DragonFly r=asomers a=rtzoeller
NetBSD (and DragonFly, which borrows its implementation) include additional flags beyond O_NONBLOCK in MqAttr, such as the flags passed to mq_open(). Modify the mq tests to validate _at least_ the expected flags are set, but don't require strict equality on these platforms.
Verified these tests pass on DragonFly and NetBSD locally.
Co-authored-by: Ryan Zoeller <rtzoeller@rtzoeller.com>
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The test was disabling the signal handler before disabling the timer.
Fix intermittent failures by:
* Reversing the cleanup order.
* Sleeping for a while before removing the signal handler, since POSIX
does not guarantee that timer_delete will clear pending signals.
Also, speed up the timer to make the test suite complete faster.
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NetBSD (and DragonFly, which borrows its implementation) include
additional flags beyond O_NONBLOCK in MqAttr, such as the flags
passed to mq_open().
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This commit adds support for the signal timer mechanism in POSIX, the
mirror to timerfd on Linux.
Resolves #1424
Signed-off-by: Brian L. Troutwine <brian@troutwine.us>
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1596: Add NetBSD configuration for supported process resources r=asomers a=schctl
In addition to existing resources, NetBSD supports `RLIMIT_MEMLOCK`, `RLIMIT_NPROC` and `RLIMIT_RSS`.
https://man.netbsd.org/setrlimit.2
`RLIMIT_AS` is also supported, but it looks like it was added [after version 5.0](https://mail-index.netbsd.org/tech-kern/2009/03/28/msg004702.html), so I'm not sure if that should be enabled.
1621: Add posix_fallocate on DragonFly r=asomers a=rtzoeller
Enable the existing `posix_fallocate()` tests as they are passing locally.
Co-authored-by: Sachin Cherian <sachinctl@protonmail.com>
Co-authored-by: Ryan Zoeller <rtzoeller@rtzoeller.com>
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1547: feat: Add glibc::SOF_TIMESTAMPING_* support r=asomers a=pacak
Support for kernel and hardware receive timestamps
Co-authored-by: Michael Baikov <manpacket@gmail.com>
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Enable epoll tests on Android, because they are passing.
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This was an oversight from PR #1511
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parking_lot provides synchronization primitives which aren't
poisoned on panic. This makes it easier to determine which tests
are failing, as a test failure no longer causes all subsequent tests
using that mutex to fail.
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Ensure file descriptors are nonnegative and less than `FD_SETSIZE`.
(Fixes #1572.)
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libc::posix_fadvise returns errnos directly rather than in the errno
variable.
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Test: `cargo test --test test test_pollfd_events`
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This was an oversight from #1306.
Reported-by: @ocadaruma
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