122 lines
4.0 KiB
Rust
122 lines
4.0 KiB
Rust
#[cfg(not(target_os = "redox"))]
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use nix::errno::Errno;
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use nix::sys::signal::*;
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use nix::unistd::*;
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use std::convert::TryFrom;
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use std::sync::atomic::{AtomicBool, Ordering};
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#[test]
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fn test_kill_none() {
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kill(getpid(), None).expect("Should be able to send signal to myself.");
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}
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#[test]
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#[cfg(not(target_os = "fuchsia"))]
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fn test_killpg_none() {
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killpg(getpgrp(), None)
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.expect("Should be able to send signal to my process group.");
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}
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#[test]
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fn test_old_sigaction_flags() {
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let _m = crate::SIGNAL_MTX.lock();
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extern "C" fn handler(_: ::libc::c_int) {}
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let act = SigAction::new(
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SigHandler::Handler(handler),
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SaFlags::empty(),
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SigSet::empty(),
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);
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let oact = unsafe { sigaction(SIGINT, &act) }.unwrap();
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let _flags = oact.flags();
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let oact = unsafe { sigaction(SIGINT, &act) }.unwrap();
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let _flags = oact.flags();
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}
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#[test]
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fn test_sigprocmask_noop() {
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sigprocmask(SigmaskHow::SIG_BLOCK, None, None)
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.expect("this should be an effective noop");
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}
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#[test]
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fn test_sigprocmask() {
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let _m = crate::SIGNAL_MTX.lock();
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// This needs to be a signal that rust doesn't use in the test harness.
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const SIGNAL: Signal = Signal::SIGCHLD;
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let mut old_signal_set = SigSet::empty();
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sigprocmask(SigmaskHow::SIG_BLOCK, None, Some(&mut old_signal_set))
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.expect("expect to be able to retrieve old signals");
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// Make sure the old set doesn't contain the signal, otherwise the following
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// test don't make sense.
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assert!(!old_signal_set.contains(SIGNAL),
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"the {:?} signal is already blocked, please change to a \
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different one", SIGNAL);
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// Now block the signal.
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let mut signal_set = SigSet::empty();
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signal_set.add(SIGNAL);
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sigprocmask(SigmaskHow::SIG_BLOCK, Some(&signal_set), None)
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.expect("expect to be able to block signals");
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// And test it again, to make sure the change was effective.
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old_signal_set.clear();
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sigprocmask(SigmaskHow::SIG_BLOCK, None, Some(&mut old_signal_set))
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.expect("expect to be able to retrieve old signals");
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assert!(old_signal_set.contains(SIGNAL),
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"expected the {:?} to be blocked", SIGNAL);
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// Reset the signal.
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sigprocmask(SigmaskHow::SIG_UNBLOCK, Some(&signal_set), None)
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.expect("expect to be able to block signals");
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}
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lazy_static! {
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static ref SIGNALED: AtomicBool = AtomicBool::new(false);
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}
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extern fn test_sigaction_handler(signal: libc::c_int) {
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let signal = Signal::try_from(signal).unwrap();
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SIGNALED.store(signal == Signal::SIGINT, Ordering::Relaxed);
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}
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#[cfg(not(target_os = "redox"))]
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extern fn test_sigaction_action(_: libc::c_int, _: *mut libc::siginfo_t, _: *mut libc::c_void) {}
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#[test]
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#[cfg(not(target_os = "redox"))]
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fn test_signal_sigaction() {
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let _m = crate::SIGNAL_MTX.lock();
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let action_handler = SigHandler::SigAction(test_sigaction_action);
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assert_eq!(unsafe { signal(Signal::SIGINT, action_handler) }.unwrap_err(), Errno::ENOTSUP);
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}
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#[test]
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fn test_signal() {
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let _m = crate::SIGNAL_MTX.lock();
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unsafe { signal(Signal::SIGINT, SigHandler::SigIgn) }.unwrap();
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raise(Signal::SIGINT).unwrap();
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assert_eq!(unsafe { signal(Signal::SIGINT, SigHandler::SigDfl) }.unwrap(), SigHandler::SigIgn);
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let handler = SigHandler::Handler(test_sigaction_handler);
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assert_eq!(unsafe { signal(Signal::SIGINT, handler) }.unwrap(), SigHandler::SigDfl);
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raise(Signal::SIGINT).unwrap();
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assert!(SIGNALED.load(Ordering::Relaxed));
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#[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
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assert_eq!(unsafe { signal(Signal::SIGINT, SigHandler::SigDfl) }.unwrap(), handler);
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// System V based OSes (e.g. illumos and Solaris) always resets the
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// disposition to SIG_DFL prior to calling the signal handler
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#[cfg(any(target_os = "illumos", target_os = "solaris"))]
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assert_eq!(unsafe { signal(Signal::SIGINT, SigHandler::SigDfl) }.unwrap(), SigHandler::SigDfl);
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// Restore default signal handler
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unsafe { signal(Signal::SIGINT, SigHandler::SigDfl) }.unwrap();
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}
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