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https://git.meli.delivery/meli/meli
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Send timer ID as si_value to SIGALRM handler
Associate each alarm signal with the timer of its origin.
This commit is contained in:
Manos Pitsidianakis
parent
a365a846b8
commit
5e912db461
13
Cargo.lock
generated
13
Cargo.lock
generated
@ -746,7 +746,8 @@ dependencies = [
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"crossbeam 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"melib 0.4.1",
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"nix 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"signal-hook 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
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"signal-hook 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
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"signal-hook-registry 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"ui 0.4.1",
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"xdg 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -1523,16 +1524,16 @@ dependencies = [
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[[package]]
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name = "signal-hook"
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version = "0.1.10"
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version = "0.1.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
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"signal-hook-registry 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"signal-hook-registry 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "signal-hook-registry"
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version = "1.1.1"
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version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"arc-swap 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -2299,8 +2300,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum serde_derive 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)" = "46a3223d0c9ba936b61c0d2e3e559e3217dbfb8d65d06d26e8b3c25de38bae3e"
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"checksum serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)" = "5a23aa71d4a4d43fdbfaac00eff68ba8a06a51759a89ac3304323e800c4dd40d"
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"checksum serde_urlencoded 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9ec5d77e2d4c73717816afac02670d5c4f534ea95ed430442cad02e7a6e32c97"
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"checksum signal-hook 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4f61c4d59f3aaa9f61bba6450a9b80ba48362fd7d651689e7a10c453b1f6dc68"
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"checksum signal-hook-registry 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1797d48f38f91643908bb14e35e79928f9f4b3cefb2420a564dde0991b4358dc"
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"checksum signal-hook 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "7a9c17dd3ba2d36023a5c9472ecddeda07e27fd0b05436e8c1e0c8f178185652"
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"checksum signal-hook-registry 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "94f478ede9f64724c5d173d7bb56099ec3e2d9fc2774aac65d34b8b890405f41"
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"checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
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"checksum smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
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"checksum smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44e59e0c9fa00817912ae6e4e6e3c4fe04455e75699d06eedc7d85917ed8e8f4"
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@ -11,7 +11,8 @@ path = "src/bin.rs"
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[dependencies]
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xdg = "2.1.0"
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crossbeam = "0.7.2"
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signal-hook = "0.1.10"
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signal-hook = "0.1.12"
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signal-hook-registry = "1.2.0"
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nix = "*"
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melib = { path = "melib", version = "*" }
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ui = { path = "ui", version = "*" }
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30
src/bin.rs
30
src/bin.rs
@ -42,12 +42,23 @@ use ui::*;
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use nix;
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use std::os::raw::c_int;
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use xdg;
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fn notify(
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signals: &[c_int],
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sender: crossbeam::channel::Sender<ThreadEvent>,
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) -> std::result::Result<crossbeam::channel::Receiver<c_int>, std::io::Error> {
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let alarm_sender = sender.clone();
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let alarm_handler = move |info: &nix::libc::siginfo_t| {
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let value = unsafe { info.si_value().sival_ptr as u8 };
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alarm_sender
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.send(ThreadEvent::UIEvent(UIEvent::Timer(value)))
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.unwrap();
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};
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unsafe {
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signal_hook_registry::register_sigaction(signal_hook::SIGALRM, alarm_handler)?;
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}
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let (s, r) = crossbeam::channel::bounded(100);
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let signals = signal_hook::iterator::Signals::new(signals)?;
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std::thread::spawn(move || {
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@ -218,22 +229,21 @@ fn run_app() -> Result<()> {
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std::env::set_var("MELI_CONFIG", config_location);
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}
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/* Create the application State. */
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let mut state = State::new()?;
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let receiver = state.receiver();
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let sender = state.sender();
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/* Create a channel to communicate with other threads. The main process is the sole receiver.
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* */
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let (sender, receiver) = crossbeam::channel::bounded(32 * ::std::mem::size_of::<ThreadEvent>());
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/* Catch SIGWINCH to handle terminal resizing */
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let signals = &[
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signal_hook::SIGALRM,
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/* Catch SIGWINCH to handle terminal resizing */
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signal_hook::SIGWINCH,
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/* Catch SIGCHLD to handle embed applications status change */
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signal_hook::SIGCHLD,
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];
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let signal_recvr = notify(signals, sender)?;
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let signal_recvr = notify(signals, sender.clone())?;
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/* Create the application State. */
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let mut state = State::new(sender, receiver.clone())?;
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let window = Box::new(Tabbed::new(vec![
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Box::new(listing::Listing::new(&state.context.accounts)),
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@ -388,10 +398,6 @@ fn run_app() -> Result<()> {
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state.redraw();
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}
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},
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signal_hook::SIGALRM => {
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state.rcv_event(UIEvent::Timer);
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state.redraw();
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},
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other => {
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debug!("got other signal: {:?}", other);
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}
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@ -191,9 +191,12 @@ pub mod timer {
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use libc::sigevent;
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use libc::{itimerspec, timespec};
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use nix::sys::signal::{SigEvent, SigevNotify};
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use std::cell::RefCell;
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use std::convert::TryInto;
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use std::time::Duration;
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thread_local!(static TIMER_IDS: RefCell<u8> = RefCell::new(0));
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#[allow(non_camel_case_types)]
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pub type timer_t = libc::intptr_t;
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@ -215,6 +218,7 @@ pub mod timer {
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timer_id: timer_t,
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interval: Duration,
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value: Duration,
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pub si_value: u8,
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}
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impl Drop for PosixTimer {
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@ -255,6 +259,35 @@ pub mod timer {
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}
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}
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pub fn set_value(&mut self, value: Duration) {
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let spec = itimerspec {
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it_interval: timespec {
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tv_sec: self.interval.as_secs().try_into().unwrap_or(0),
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tv_nsec: self.interval.subsec_nanos().try_into().unwrap_or(0),
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},
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it_value: timespec {
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tv_sec: value.as_secs().try_into().unwrap_or(0),
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tv_nsec: value.subsec_nanos().try_into().unwrap_or(0),
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},
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};
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let ret =
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unsafe { timer_settime(self.timer_id, 0, &spec as *const _, std::ptr::null_mut()) };
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if ret != 0 {
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match ret {
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libc::EFAULT => {
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panic!(
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"EFAULT: new_value, old_value, or curr_value is not a valid pointer."
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);
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}
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libc::EINVAL => {
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panic!("EINVAL: timerid is invalid.");
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}
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_ => {}
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}
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}
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self.value = value;
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}
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pub fn set_interval(&mut self, interval: Duration) {
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let spec = itimerspec {
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it_interval: timespec {
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@ -320,9 +353,15 @@ pub mod timer {
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) -> Result<PosixTimer> {
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let mut timer_id = Default::default();
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let mut si_value = 0;
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TIMER_IDS.with(|t| {
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si_value = *t.borrow_mut();
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*t.borrow_mut() += 1;
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});
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let sigev_notify = SigevNotify::SigevSignal {
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signal,
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si_value: 0,
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si_value: si_value as isize,
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};
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let event = SigEvent::new(sigev_notify);
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@ -382,6 +421,7 @@ pub mod timer {
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timer_id,
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interval,
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value,
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si_value,
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})
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}
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}
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@ -32,7 +32,7 @@ use super::*;
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use crate::plugins::PluginManager;
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use melib::backends::{FolderHash, NotifyFn};
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use crossbeam::channel::{bounded, unbounded, Receiver, Sender};
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use crossbeam::channel::{unbounded, Receiver, Sender};
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use fnv::FnvHashMap;
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use std::env;
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use std::io::Write;
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@ -199,11 +199,7 @@ impl Drop for State {
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}
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impl State {
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pub fn new() -> Result<Self> {
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/* Create a channel to communicate with other threads. The main process is the sole receiver.
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* */
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let (sender, receiver) = bounded(32 * ::std::mem::size_of::<ThreadEvent>());
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pub fn new(sender: Sender<ThreadEvent>, receiver: Receiver<ThreadEvent>) -> Result<Self> {
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/*
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* Create async channel to block the input-thread if we need to fork and stop it from reading
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* stdin, see get_events() for details
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@ -106,6 +106,7 @@ pub enum UIEvent {
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EnvelopeUpdate(EnvelopeHash),
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EnvelopeRename(EnvelopeHash, EnvelopeHash), // old_hash, new_hash
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EnvelopeRemove(EnvelopeHash),
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Timer(u8),
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}
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impl From<RefreshEvent> for UIEvent {
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