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28 lines
1.1 KiB
28 lines
1.1 KiB
use std::convert::TryFrom;
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#[test]
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fn test_signalfd() {
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use nix::sys::signalfd::SignalFd;
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use nix::sys::signal::{self, raise, Signal, SigSet};
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// Grab the mutex for altering signals so we don't interfere with other tests.
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let _m = crate::SIGNAL_MTX.lock().expect("Mutex got poisoned by another test");
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// Block the SIGUSR1 signal from automatic processing for this thread
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let mut mask = SigSet::empty();
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mask.add(signal::SIGUSR1);
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mask.thread_block().unwrap();
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let mut fd = SignalFd::new(&mask).unwrap();
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// Send a SIGUSR1 signal to the current process. Note that this uses `raise` instead of `kill`
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// because `kill` with `getpid` isn't correct during multi-threaded execution like during a
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// cargo test session. Instead use `raise` which does the correct thing by default.
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raise(signal::SIGUSR1).expect("Error: raise(SIGUSR1) failed");
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// And now catch that same signal.
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let res = fd.read_signal().unwrap().unwrap();
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let signo = Signal::try_from(res.ssi_signo as i32).unwrap();
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assert_eq!(signo, signal::SIGUSR1);
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}
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