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2afff8194c
* Add more cfg aliases Add cfg aliases for linux_android, bsd, and freebsdlike. Use them in many places, though not everywhere they could theoretically be used. Fixes #2188 * Use apple_targets in build.rs Co-authored-by: SteveLauC <stevelauc@outlook.com> * whitespace Co-authored-by: SteveLauC <stevelauc@outlook.com> * Define a "solarish" target alias. * Describe cfg aliases in CONVENTIONS.md * solarish in line 803 * solarish in line 845 * fix fmt --------- Co-authored-by: SteveLauC <stevelauc@outlook.com>
120 lines
3.1 KiB
Rust
120 lines
3.1 KiB
Rust
#[macro_use]
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extern crate cfg_if;
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#[cfg_attr(not(any(target_os = "redox", target_os = "haiku")), macro_use)]
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extern crate nix;
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mod common;
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mod sys;
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#[cfg(not(target_os = "redox"))]
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mod test_dir;
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mod test_fcntl;
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#[cfg(linux_android)]
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mod test_kmod;
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#[cfg(any(
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target_os = "dragonfly",
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target_os = "freebsd",
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target_os = "fushsia",
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target_os = "linux",
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target_os = "netbsd"
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))]
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mod test_mq;
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#[cfg(not(target_os = "redox"))]
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mod test_net;
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mod test_nix_path;
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#[cfg(target_os = "freebsd")]
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mod test_nmount;
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mod test_poll;
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#[cfg(not(any(
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target_os = "redox",
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target_os = "fuchsia",
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target_os = "haiku"
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)))]
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mod test_pty;
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mod test_resource;
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#[cfg(any(
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target_os = "android",
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target_os = "dragonfly",
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all(target_os = "freebsd", fbsd14),
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target_os = "linux"
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))]
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mod test_sched;
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#[cfg(any(
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target_os = "android",
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target_os = "dragonfly",
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target_os = "freebsd",
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apple_targets,
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target_os = "linux",
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))]
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mod test_sendfile;
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mod test_stat;
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mod test_time;
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#[cfg(all(
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any(
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target_os = "freebsd",
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target_os = "illumos",
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target_os = "linux",
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target_os = "netbsd"
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),
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feature = "time",
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feature = "signal"
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))]
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mod test_timer;
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mod test_unistd;
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use nix::unistd::{chdir, getcwd, read};
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use parking_lot::{Mutex, RwLock, RwLockWriteGuard};
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use std::os::unix::io::{AsFd, AsRawFd};
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use std::path::PathBuf;
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/// Helper function analogous to `std::io::Read::read_exact`, but for `Fd`s
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fn read_exact<Fd: AsFd>(f: Fd, buf: &mut [u8]) {
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let mut len = 0;
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while len < buf.len() {
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// get_mut would be better than split_at_mut, but it requires nightly
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let (_, remaining) = buf.split_at_mut(len);
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len += read(f.as_fd().as_raw_fd(), remaining).unwrap();
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}
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}
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/// Any test that creates child processes must grab this mutex, regardless
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/// of what it does with those children.
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pub static FORK_MTX: std::sync::Mutex<()> = std::sync::Mutex::new(());
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/// Any test that changes the process's current working directory must grab
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/// the RwLock exclusively. Any process that cares about the current
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/// working directory must grab it shared.
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pub static CWD_LOCK: RwLock<()> = RwLock::new(());
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/// Any test that changes the process's supplementary groups must grab this
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/// mutex
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pub static GROUPS_MTX: Mutex<()> = Mutex::new(());
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/// Any tests that loads or unloads kernel modules must grab this mutex
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pub static KMOD_MTX: Mutex<()> = Mutex::new(());
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/// Any test that calls ptsname(3) must grab this mutex.
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pub static PTSNAME_MTX: Mutex<()> = Mutex::new(());
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/// Any test that alters signal handling must grab this mutex.
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pub static SIGNAL_MTX: Mutex<()> = Mutex::new(());
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/// RAII object that restores a test's original directory on drop
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struct DirRestore<'a> {
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d: PathBuf,
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_g: RwLockWriteGuard<'a, ()>,
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}
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impl<'a> DirRestore<'a> {
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fn new() -> Self {
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let guard = crate::CWD_LOCK.write();
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DirRestore {
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_g: guard,
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d: getcwd().unwrap(),
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}
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}
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}
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impl<'a> Drop for DirRestore<'a> {
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fn drop(&mut self) {
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let r = chdir(&self.d);
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if std::thread::panicking() {
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r.unwrap();
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}
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}
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}
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