mirror of
https://github.com/denoland/deno.git
synced 2024-11-29 16:30:56 -05:00
524 lines
12 KiB
Rust
524 lines
12 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use deno_core::error::type_error;
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use deno_core::error::AnyError;
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use deno_core::op;
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use deno_core::AsyncRefCell;
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use deno_core::CancelFuture;
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use deno_core::CancelHandle;
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use deno_core::Extension;
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use deno_core::OpState;
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use deno_core::RcRef;
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use deno_core::Resource;
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use deno_core::ResourceId;
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use std::borrow::Cow;
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use std::cell::RefCell;
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use std::rc::Rc;
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#[cfg(unix)]
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use tokio::signal::unix::{signal, Signal, SignalKind};
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#[cfg(windows)]
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use tokio::signal::windows::{ctrl_break, ctrl_c, CtrlBreak, CtrlC};
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pub fn init() -> Extension {
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Extension::builder()
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.ops(vec![
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op_signal_bind::decl(),
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op_signal_unbind::decl(),
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op_signal_poll::decl(),
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])
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.build()
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}
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#[cfg(unix)]
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/// The resource for signal stream.
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/// The second element is the waker of polling future.
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struct SignalStreamResource {
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signal: AsyncRefCell<Signal>,
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cancel: CancelHandle,
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}
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#[cfg(unix)]
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impl Resource for SignalStreamResource {
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fn name(&self) -> Cow<str> {
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"signal".into()
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}
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fn close(self: Rc<Self>) {
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self.cancel.cancel();
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}
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}
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// TODO: CtrlClose could be mapped to SIGHUP but that needs a
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// tokio::windows::signal::CtrlClose type, or something from a different crate
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#[cfg(windows)]
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enum WindowsSignal {
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Sigint(CtrlC),
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Sigbreak(CtrlBreak),
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}
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#[cfg(windows)]
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impl From<CtrlC> for WindowsSignal {
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fn from(ctrl_c: CtrlC) -> Self {
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WindowsSignal::Sigint(ctrl_c)
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}
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}
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#[cfg(windows)]
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impl From<CtrlBreak> for WindowsSignal {
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fn from(ctrl_break: CtrlBreak) -> Self {
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WindowsSignal::Sigbreak(ctrl_break)
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}
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}
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#[cfg(windows)]
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impl WindowsSignal {
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pub async fn recv(&mut self) -> Option<()> {
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match self {
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WindowsSignal::Sigint(ctrl_c) => ctrl_c.recv().await,
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WindowsSignal::Sigbreak(ctrl_break) => ctrl_break.recv().await,
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}
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}
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}
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#[cfg(windows)]
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struct SignalStreamResource {
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signal: AsyncRefCell<WindowsSignal>,
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cancel: CancelHandle,
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}
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#[cfg(windows)]
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impl Resource for SignalStreamResource {
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fn name(&self) -> Cow<str> {
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"signal".into()
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}
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fn close(self: Rc<Self>) {
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self.cancel.cancel();
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}
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}
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#[cfg(target_os = "freebsd")]
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pub fn signal_str_to_int(s: &str) -> Result<libc::c_int, AnyError> {
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match s {
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"SIGHUP" => Ok(1),
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"SIGINT" => Ok(2),
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"SIGQUIT" => Ok(3),
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"SIGILL" => Ok(4),
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"SIGTRAP" => Ok(5),
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"SIGABRT" => Ok(6),
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"SIGEMT" => Ok(7),
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"SIGFPE" => Ok(8),
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"SIGKILL" => Ok(9),
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"SIGBUS" => Ok(10),
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"SIGSEGV" => Ok(11),
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"SIGSYS" => Ok(12),
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"SIGPIPE" => Ok(13),
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"SIGALRM" => Ok(14),
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"SIGTERM" => Ok(15),
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"SIGURG" => Ok(16),
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"SIGSTOP" => Ok(17),
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"SIGTSTP" => Ok(18),
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"SIGCONT" => Ok(19),
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"SIGCHLD" => Ok(20),
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"SIGTTIN" => Ok(21),
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"SIGTTOU" => Ok(22),
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"SIGIO" => Ok(23),
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"SIGXCPU" => Ok(24),
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"SIGXFSZ" => Ok(25),
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"SIGVTALRM" => Ok(26),
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"SIGPROF" => Ok(27),
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"SIGWINCH" => Ok(28),
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"SIGINFO" => Ok(29),
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"SIGUSR1" => Ok(30),
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"SIGUSR2" => Ok(31),
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"SIGTHR" => Ok(32),
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"SIGLIBRT" => Ok(33),
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_ => Err(type_error(format!("Invalid signal : {}", s))),
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}
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}
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#[cfg(target_os = "freebsd")]
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pub fn signal_int_to_str(s: libc::c_int) -> Result<&'static str, AnyError> {
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match s {
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1 => Ok("SIGHUP"),
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2 => Ok("SIGINT"),
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3 => Ok("SIGQUIT"),
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4 => Ok("SIGILL"),
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5 => Ok("SIGTRAP"),
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6 => Ok("SIGABRT"),
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7 => Ok("SIGEMT"),
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8 => Ok("SIGFPE"),
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9 => Ok("SIGKILL"),
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10 => Ok("SIGBUS"),
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11 => Ok("SIGSEGV"),
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12 => Ok("SIGSYS"),
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13 => Ok("SIGPIPE"),
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14 => Ok("SIGALRM"),
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15 => Ok("SIGTERM"),
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16 => Ok("SIGURG"),
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17 => Ok("SIGSTOP"),
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18 => Ok("SIGTSTP"),
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19 => Ok("SIGCONT"),
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20 => Ok("SIGCHLD"),
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21 => Ok("SIGTTIN"),
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22 => Ok("SIGTTOU"),
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23 => Ok("SIGIO"),
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24 => Ok("SIGXCPU"),
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25 => Ok("SIGXFSZ"),
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26 => Ok("SIGVTALRM"),
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27 => Ok("SIGPROF"),
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28 => Ok("SIGWINCH"),
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29 => Ok("SIGINFO"),
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30 => Ok("SIGUSR1"),
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31 => Ok("SIGUSR2"),
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32 => Ok("SIGTHR"),
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33 => Ok("SIGLIBRT"),
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_ => Err(type_error(format!("Invalid signal : {}", s))),
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}
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}
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#[cfg(any(target_os = "android", target_os = "linux"))]
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pub fn signal_str_to_int(s: &str) -> Result<libc::c_int, AnyError> {
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match s {
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"SIGHUP" => Ok(1),
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"SIGINT" => Ok(2),
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"SIGQUIT" => Ok(3),
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"SIGILL" => Ok(4),
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"SIGTRAP" => Ok(5),
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"SIGABRT" => Ok(6),
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"SIGBUS" => Ok(7),
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"SIGFPE" => Ok(8),
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"SIGKILL" => Ok(9),
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"SIGUSR1" => Ok(10),
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"SIGSEGV" => Ok(11),
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"SIGUSR2" => Ok(12),
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"SIGPIPE" => Ok(13),
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"SIGALRM" => Ok(14),
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"SIGTERM" => Ok(15),
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"SIGSTKFLT" => Ok(16),
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"SIGCHLD" => Ok(17),
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"SIGCONT" => Ok(18),
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"SIGSTOP" => Ok(19),
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"SIGTSTP" => Ok(20),
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"SIGTTIN" => Ok(21),
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"SIGTTOU" => Ok(22),
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"SIGURG" => Ok(23),
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"SIGXCPU" => Ok(24),
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"SIGXFSZ" => Ok(25),
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"SIGVTALRM" => Ok(26),
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"SIGPROF" => Ok(27),
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"SIGWINCH" => Ok(28),
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"SIGIO" => Ok(29),
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"SIGPWR" => Ok(30),
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"SIGSYS" => Ok(31),
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_ => Err(type_error(format!("Invalid signal : {}", s))),
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}
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}
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#[cfg(any(target_os = "android", target_os = "linux"))]
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pub fn signal_int_to_str(s: libc::c_int) -> Result<&'static str, AnyError> {
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match s {
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1 => Ok("SIGHUP"),
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2 => Ok("SIGINT"),
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3 => Ok("SIGQUIT"),
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4 => Ok("SIGILL"),
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5 => Ok("SIGTRAP"),
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6 => Ok("SIGABRT"),
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7 => Ok("SIGBUS"),
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8 => Ok("SIGFPE"),
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9 => Ok("SIGKILL"),
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10 => Ok("SIGUSR1"),
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11 => Ok("SIGSEGV"),
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12 => Ok("SIGUSR2"),
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13 => Ok("SIGPIPE"),
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14 => Ok("SIGALRM"),
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15 => Ok("SIGTERM"),
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16 => Ok("SIGSTKFLT"),
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17 => Ok("SIGCHLD"),
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18 => Ok("SIGCONT"),
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19 => Ok("SIGSTOP"),
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20 => Ok("SIGTSTP"),
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21 => Ok("SIGTTIN"),
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22 => Ok("SIGTTOU"),
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23 => Ok("SIGURG"),
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24 => Ok("SIGXCPU"),
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25 => Ok("SIGXFSZ"),
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26 => Ok("SIGVTALRM"),
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27 => Ok("SIGPROF"),
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28 => Ok("SIGWINCH"),
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29 => Ok("SIGIO"),
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30 => Ok("SIGPWR"),
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31 => Ok("SIGSYS"),
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_ => Err(type_error(format!("Invalid signal : {}", s))),
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}
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}
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#[cfg(target_os = "macos")]
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pub fn signal_str_to_int(s: &str) -> Result<libc::c_int, AnyError> {
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match s {
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"SIGHUP" => Ok(1),
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"SIGINT" => Ok(2),
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"SIGQUIT" => Ok(3),
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"SIGILL" => Ok(4),
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"SIGTRAP" => Ok(5),
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"SIGABRT" => Ok(6),
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"SIGEMT" => Ok(7),
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"SIGFPE" => Ok(8),
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"SIGKILL" => Ok(9),
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"SIGBUS" => Ok(10),
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"SIGSEGV" => Ok(11),
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"SIGSYS" => Ok(12),
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"SIGPIPE" => Ok(13),
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"SIGALRM" => Ok(14),
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"SIGTERM" => Ok(15),
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"SIGURG" => Ok(16),
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"SIGSTOP" => Ok(17),
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"SIGTSTP" => Ok(18),
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"SIGCONT" => Ok(19),
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"SIGCHLD" => Ok(20),
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"SIGTTIN" => Ok(21),
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"SIGTTOU" => Ok(22),
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"SIGIO" => Ok(23),
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"SIGXCPU" => Ok(24),
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"SIGXFSZ" => Ok(25),
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"SIGVTALRM" => Ok(26),
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"SIGPROF" => Ok(27),
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"SIGWINCH" => Ok(28),
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"SIGINFO" => Ok(29),
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"SIGUSR1" => Ok(30),
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"SIGUSR2" => Ok(31),
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_ => Err(type_error(format!("Invalid signal: {}", s))),
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}
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}
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#[cfg(target_os = "macos")]
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pub fn signal_int_to_str(s: libc::c_int) -> Result<&'static str, AnyError> {
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match s {
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1 => Ok("SIGHUP"),
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2 => Ok("SIGINT"),
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3 => Ok("SIGQUIT"),
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4 => Ok("SIGILL"),
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5 => Ok("SIGTRAP"),
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6 => Ok("SIGABRT"),
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7 => Ok("SIGEMT"),
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8 => Ok("SIGFPE"),
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9 => Ok("SIGKILL"),
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10 => Ok("SIGBUS"),
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11 => Ok("SIGSEGV"),
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12 => Ok("SIGSYS"),
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13 => Ok("SIGPIPE"),
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14 => Ok("SIGALRM"),
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15 => Ok("SIGTERM"),
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16 => Ok("SIGURG"),
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17 => Ok("SIGSTOP"),
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18 => Ok("SIGTSTP"),
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19 => Ok("SIGCONT"),
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20 => Ok("SIGCHLD"),
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21 => Ok("SIGTTIN"),
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22 => Ok("SIGTTOU"),
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23 => Ok("SIGIO"),
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24 => Ok("SIGXCPU"),
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25 => Ok("SIGXFSZ"),
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26 => Ok("SIGVTALRM"),
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27 => Ok("SIGPROF"),
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28 => Ok("SIGWINCH"),
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29 => Ok("SIGINFO"),
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30 => Ok("SIGUSR1"),
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31 => Ok("SIGUSR2"),
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_ => Err(type_error(format!("Invalid signal: {}", s))),
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}
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}
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#[cfg(any(target_os = "solaris", target_os = "illumos"))]
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pub fn signal_str_to_int(s: &str) -> Result<libc::c_int, AnyError> {
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match s {
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"SIGHUP" => Ok(1),
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"SIGINT" => Ok(2),
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"SIGQUIT" => Ok(3),
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"SIGILL" => Ok(4),
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"SIGTRAP" => Ok(5),
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"SIGIOT" => Ok(6),
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"SIGABRT" => Ok(6),
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"SIGEMT" => Ok(7),
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"SIGFPE" => Ok(8),
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"SIGKILL" => Ok(9),
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"SIGBUS" => Ok(10),
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"SIGSEGV" => Ok(11),
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"SIGSYS" => Ok(12),
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"SIGPIPE" => Ok(13),
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"SIGALRM" => Ok(14),
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"SIGTERM" => Ok(15),
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"SIGUSR1" => Ok(16),
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"SIGUSR2" => Ok(17),
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"SIGCLD" => Ok(18),
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"SIGCHLD" => Ok(18),
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"SIGPWR" => Ok(19),
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"SIGWINCH" => Ok(20),
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"SIGURG" => Ok(21),
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"SIGPOLL" => Ok(22),
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"SIGIO" => Ok(22),
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"SIGSTOP" => Ok(23),
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"SIGTSTP" => Ok(24),
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"SIGCONT" => Ok(25),
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"SIGTTIN" => Ok(26),
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"SIGTTOU" => Ok(27),
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"SIGVTALRM" => Ok(28),
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"SIGPROF" => Ok(29),
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"SIGXCPU" => Ok(30),
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"SIGXFSZ" => Ok(31),
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"SIGWAITING" => Ok(32),
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"SIGLWP" => Ok(33),
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"SIGFREEZE" => Ok(34),
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"SIGTHAW" => Ok(35),
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"SIGCANCEL" => Ok(36),
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"SIGLOST" => Ok(37),
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"SIGXRES" => Ok(38),
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"SIGJVM1" => Ok(39),
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"SIGJVM2" => Ok(40),
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_ => Err(type_error(format!("Invalid signal : {}", s))),
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}
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}
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#[cfg(any(target_os = "solaris", target_os = "illumos"))]
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pub fn signal_int_to_str(s: libc::c_int) -> Result<&'static str, AnyError> {
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match s {
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1 => Ok("SIGHUP"),
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2 => Ok("SIGINT"),
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3 => Ok("SIGQUIT"),
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4 => Ok("SIGILL"),
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5 => Ok("SIGTRAP"),
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6 => Ok("SIGABRT"),
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7 => Ok("SIGEMT"),
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8 => Ok("SIGFPE"),
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9 => Ok("SIGKILL"),
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10 => Ok("SIGBUS"),
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11 => Ok("SIGSEGV"),
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12 => Ok("SIGSYS"),
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13 => Ok("SIGPIPE"),
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14 => Ok("SIGALRM"),
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15 => Ok("SIGTERM"),
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16 => Ok("SIGUSR1"),
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17 => Ok("SIGUSR2"),
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18 => Ok("SIGCHLD"),
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19 => Ok("SIGPWR"),
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20 => Ok("SIGWINCH"),
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21 => Ok("SIGURG"),
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22 => Ok("SIGPOLL"),
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23 => Ok("SIGSTOP"),
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24 => Ok("SIGTSTP"),
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25 => Ok("SIGCONT"),
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26 => Ok("SIGTTIN"),
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27 => Ok("SIGTTOU"),
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28 => Ok("SIGVTALRM"),
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29 => Ok("SIGPROF"),
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30 => Ok("SIGXCPU"),
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31 => Ok("SIGXFSZ"),
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32 => Ok("SIGWAITING"),
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33 => Ok("SIGLWP"),
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34 => Ok("SIGFREEZE"),
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35 => Ok("SIGTHAW"),
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36 => Ok("SIGCANCEL"),
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37 => Ok("SIGLOST"),
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38 => Ok("SIGXRES"),
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39 => Ok("SIGJVM1"),
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40 => Ok("SIGJVM2"),
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_ => Err(type_error(format!("Invalid signal : {}", s))),
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}
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}
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#[cfg(target_os = "windows")]
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pub fn signal_str_to_int(s: &str) -> Result<libc::c_int, AnyError> {
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match s {
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"SIGINT" => Ok(2),
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"SIGBREAK" => Ok(21),
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_ => Err(type_error(
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"Windows only supports ctrl-c (SIGINT) and ctrl-break (SIGBREAK).",
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)),
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}
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}
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#[cfg(target_os = "windows")]
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pub fn signal_int_to_str(s: libc::c_int) -> Result<&'static str, AnyError> {
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match s {
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2 => Ok("SIGINT"),
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21 => Ok("SIGBREAK"),
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_ => Err(type_error(
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"Windows only supports ctrl-c (SIGINT) and ctrl-break (SIGBREAK).",
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)),
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}
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}
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#[cfg(unix)]
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#[op]
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fn op_signal_bind(
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state: &mut OpState,
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sig: String,
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) -> Result<ResourceId, AnyError> {
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let signo = signal_str_to_int(&sig)?;
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if signal_hook_registry::FORBIDDEN.contains(&signo) {
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return Err(type_error(format!(
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"Binding to signal '{}' is not allowed",
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sig
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)));
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}
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let resource = SignalStreamResource {
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signal: AsyncRefCell::new(signal(SignalKind::from_raw(signo))?),
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cancel: Default::default(),
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};
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let rid = state.resource_table.add(resource);
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Ok(rid)
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}
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#[cfg(windows)]
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#[op]
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fn op_signal_bind(
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state: &mut OpState,
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sig: String,
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) -> Result<ResourceId, AnyError> {
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let signo = signal_str_to_int(&sig)?;
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let resource = SignalStreamResource {
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signal: AsyncRefCell::new(match signo {
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// SIGINT
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2 => ctrl_c()
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.expect("There was an issue creating ctrl+c event stream.")
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.into(),
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// SIGBREAK
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21 => ctrl_break()
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.expect("There was an issue creating ctrl+break event stream.")
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.into(),
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_ => unimplemented!(),
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}),
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cancel: Default::default(),
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};
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let rid = state.resource_table.add(resource);
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Ok(rid)
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}
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#[op]
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async fn op_signal_poll(
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state: Rc<RefCell<OpState>>,
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rid: ResourceId,
|
|
) -> Result<bool, AnyError> {
|
|
let resource = state
|
|
.borrow_mut()
|
|
.resource_table
|
|
.get::<SignalStreamResource>(rid)?;
|
|
|
|
let cancel = RcRef::map(&resource, |r| &r.cancel);
|
|
let mut signal = RcRef::map(&resource, |r| &r.signal).borrow_mut().await;
|
|
|
|
match signal.recv().or_cancel(cancel).await {
|
|
Ok(result) => Ok(result.is_none()),
|
|
Err(_) => Ok(true),
|
|
}
|
|
}
|
|
|
|
#[op]
|
|
pub fn op_signal_unbind(
|
|
state: &mut OpState,
|
|
rid: ResourceId,
|
|
) -> Result<(), AnyError> {
|
|
state.resource_table.close(rid)?;
|
|
Ok(())
|
|
}
|