mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 15:24:46 -05:00
256 lines
4.7 KiB
JavaScript
256 lines
4.7 KiB
JavaScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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((window) => {
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const { sendSync, sendAsync } = window.__bootstrap.dispatchJson;
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const { build } = window.__bootstrap.build;
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function bindSignal(signo) {
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return sendSync("op_signal_bind", { signo });
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}
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function pollSignal(rid) {
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return sendAsync("op_signal_poll", { rid });
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}
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function unbindSignal(rid) {
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sendSync("op_signal_unbind", { rid });
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}
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// From `kill -l`
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const LinuxSignal = {
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1: "SIGHUP",
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2: "SIGINT",
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3: "SIGQUIT",
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4: "SIGILL",
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5: "SIGTRAP",
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6: "SIGABRT",
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7: "SIGBUS",
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8: "SIGFPE",
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9: "SIGKILL",
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10: "SIGUSR1",
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11: "SIGSEGV",
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12: "SIGUSR2",
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13: "SIGPIPE",
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14: "SIGALRM",
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15: "SIGTERM",
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16: "SIGSTKFLT",
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17: "SIGCHLD",
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18: "SIGCONT",
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19: "SIGSTOP",
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20: "SIGTSTP",
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21: "SIGTTIN",
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22: "SIGTTOU",
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23: "SIGURG",
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24: "SIGXCPU",
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25: "SIGXFSZ",
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26: "SIGVTALRM",
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27: "SIGPROF",
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28: "SIGWINCH",
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29: "SIGIO",
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30: "SIGPWR",
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31: "SIGSYS",
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SIGHUP: 1,
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SIGINT: 2,
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SIGQUIT: 3,
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SIGILL: 4,
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SIGTRAP: 5,
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SIGABRT: 6,
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SIGBUS: 7,
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SIGFPE: 8,
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SIGKILL: 9,
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SIGUSR1: 10,
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SIGSEGV: 11,
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SIGUSR2: 12,
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SIGPIPE: 13,
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SIGALRM: 14,
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SIGTERM: 15,
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SIGSTKFLT: 16,
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SIGCHLD: 17,
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SIGCONT: 18,
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SIGSTOP: 19,
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SIGTSTP: 20,
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SIGTTIN: 21,
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SIGTTOU: 22,
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SIGURG: 23,
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SIGXCPU: 24,
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SIGXFSZ: 25,
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SIGVTALRM: 26,
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SIGPROF: 27,
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SIGWINCH: 28,
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SIGIO: 29,
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SIGPWR: 30,
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SIGSYS: 31,
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};
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// From `kill -l`
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const MacOSSignal = {
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1: "SIGHUP",
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2: "SIGINT",
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3: "SIGQUIT",
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4: "SIGILL",
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5: "SIGTRAP",
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6: "SIGABRT",
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7: "SIGEMT",
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8: "SIGFPE",
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9: "SIGKILL",
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10: "SIGBUS",
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11: "SIGSEGV",
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12: "SIGSYS",
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13: "SIGPIPE",
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14: "SIGALRM",
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15: "SIGTERM",
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16: "SIGURG",
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17: "SIGSTOP",
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18: "SIGTSTP",
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19: "SIGCONT",
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20: "SIGCHLD",
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21: "SIGTTIN",
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22: "SIGTTOU",
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23: "SIGIO",
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24: "SIGXCPU",
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25: "SIGXFSZ",
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26: "SIGVTALRM",
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27: "SIGPROF",
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28: "SIGWINCH",
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29: "SIGINFO",
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30: "SIGUSR1",
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31: "SIGUSR2",
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SIGHUP: 1,
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SIGINT: 2,
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SIGQUIT: 3,
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SIGILL: 4,
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SIGTRAP: 5,
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SIGABRT: 6,
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SIGEMT: 7,
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SIGFPE: 8,
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SIGKILL: 9,
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SIGBUS: 10,
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SIGSEGV: 11,
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SIGSYS: 12,
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SIGPIPE: 13,
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SIGALRM: 14,
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SIGTERM: 15,
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SIGURG: 16,
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SIGSTOP: 17,
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SIGTSTP: 18,
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SIGCONT: 19,
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SIGCHLD: 20,
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SIGTTIN: 21,
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SIGTTOU: 22,
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SIGIO: 23,
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SIGXCPU: 24,
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SIGXFSZ: 25,
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SIGVTALRM: 26,
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SIGPROF: 27,
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SIGWINCH: 28,
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SIGINFO: 29,
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SIGUSR1: 30,
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SIGUSR2: 31,
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};
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const Signal = {};
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function setSignals() {
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if (build.os === "darwin") {
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Object.assign(Signal, MacOSSignal);
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} else {
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Object.assign(Signal, LinuxSignal);
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}
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}
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function signal(signo) {
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if (build.os === "windows") {
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throw new Error("not implemented!");
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}
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return new SignalStream(signo);
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}
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const signals = {
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alarm() {
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return signal(Signal.SIGALRM);
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},
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child() {
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return signal(Signal.SIGCHLD);
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},
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hungup() {
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return signal(Signal.SIGHUP);
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},
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interrupt() {
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return signal(Signal.SIGINT);
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},
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io() {
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return signal(Signal.SIGIO);
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},
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pipe() {
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return signal(Signal.SIGPIPE);
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},
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quit() {
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return signal(Signal.SIGQUIT);
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},
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terminate() {
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return signal(Signal.SIGTERM);
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},
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userDefined1() {
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return signal(Signal.SIGUSR1);
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},
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userDefined2() {
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return signal(Signal.SIGUSR2);
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},
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windowChange() {
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return signal(Signal.SIGWINCH);
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},
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};
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class SignalStream {
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#disposed = false;
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#pollingPromise = Promise.resolve(false);
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#rid = 0;
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constructor(signo) {
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this.#rid = bindSignal(signo).rid;
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this.#loop();
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}
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#pollSignal = async () => {
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const res = await pollSignal(this.#rid);
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return res.done;
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};
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#loop = async () => {
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do {
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this.#pollingPromise = this.#pollSignal();
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} while (!(await this.#pollingPromise) && !this.#disposed);
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};
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then(
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f,
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g,
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) {
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return this.#pollingPromise.then(() => {}).then(f, g);
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}
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async next() {
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return { done: await this.#pollingPromise, value: undefined };
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}
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[Symbol.asyncIterator]() {
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return this;
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}
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dispose() {
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if (this.#disposed) {
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throw new Error("The stream has already been disposed.");
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}
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this.#disposed = true;
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unbindSignal(this.#rid);
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}
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}
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window.__bootstrap.signals = {
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signal,
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signals,
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Signal,
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SignalStream,
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setSignals,
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};
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})(this);
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