45 lines
1.3 KiB
Rust
45 lines
1.3 KiB
Rust
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Previously memory for alternate signal stack have been unmapped during
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// main thread exit while still being in use by signal handlers. This test
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// triggers this situation by sending signal from atexit handler.
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//
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// ignore-windows
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#![feature(libc)]
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extern crate libc;
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use libc::*;
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unsafe extern fn signal_handler(signum: c_int, _: *mut siginfo_t, _: *mut c_void) {
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assert_eq!(signum, SIGWINCH);
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}
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extern fn send_signal() {
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unsafe {
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raise(SIGWINCH);
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}
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}
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fn main() {
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unsafe {
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// Install signal hander that runs on alternate signal stack.
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let mut action: sigaction = std::mem::zeroed();
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action.sa_flags = SA_SIGINFO | SA_ONSTACK;
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action.sa_sigaction = signal_handler as sighandler_t;
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sigaction(SIGWINCH, &action, std::ptr::null_mut());
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// Send SIGWINCH on exit.
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atexit(send_signal);
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}
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}
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