118 строки
3.8 KiB
Plaintext
Executable File
118 строки
3.8 KiB
Plaintext
Executable File
#!/usr/bin/env /Library/Frameworks/Mono.framework/Commands/csharp -s
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// arguments are: <platform> <outputPath>
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using System.Diagnostics;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Threading;
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using System.Xml;
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static class NativeMethods {
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[DllImport ("__Internal", SetLastError = true)]
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static extern int kill (int pid, int signal);
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public static void Abort (this Process process)
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{
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var exitTimeout = TimeSpan.FromSeconds (60);
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var pid = process.Id;
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Console.WriteLine ($"kill ({pid}, 6);");
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var rv = kill (pid, 6 /* SIGABRT - this triggers a crash report */);
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if (rv != 0) {
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// This might randomly happen, because there's a race condition here: we waited for the process to exit,
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// the timeout occurred so we decided to kill the process, and *then* the process exited, before we got
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// around to kill it. In that case, the kill call would fail.
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Console.WriteLine ($"Failed to execute 'kill -6 {pid}'. errno = {Marshal.GetLastWin32Error ()} - process already exited?");
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return;
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}
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var watch = Stopwatch.StartNew ();
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while (watch.Elapsed < exitTimeout) {
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Console.WriteLine ($"kill ({pid}, 0);");
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rv = kill (pid, 0); // check if pid is still alive (valid)
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if (rv != 0) {
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// Nope it's not, so it must have terminated.
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return;
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}
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Thread.Sleep (50);
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}
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// Send SIGKILL - time to finish it off.
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Console.WriteLine ($"kill ({pid}, 9);");
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kill (pid, 9);
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}
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}
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var args = Environment.GetCommandLineArgs ();
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var initialArgumentCount = 3;
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if (args.Length <= initialArgumentCount + 1 /* 3 default arguments (executable + script + -s) */) {
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// first arg is "/Library/Frameworks/Mono.framework/Versions/4.8.0/lib/mono/4.5/csharp.exe"
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// second arg the script itself
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// third argument is -s
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// then comes the ones we care about
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Console.WriteLine ($"Need two arguments (the timeout + the command to launch), got {args.Length - initialArgumentCount} argument(s)");
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Environment.Exit (1);
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return;
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}
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var launchTimeout = TimeSpan.FromSeconds (10); // must launch within a few seconds.
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var argIndex = initialArgumentCount;
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var executionTimeout = TimeSpan.FromSeconds (int.Parse (args [argIndex++]));
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var commands = args.Skip (argIndex).ToArray ();
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var pid = Process.GetCurrentProcess ().Id;
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var maxLaunchAttempts = 10;
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var exitCode = -1;
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for (var attempt = 0; attempt < maxLaunchAttempts; attempt++) {
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var launchTimeoutFile = Path.GetFullPath ($"launch-timeout-sentinel-{pid}-{attempt}.txt");
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var launchTimedOut = new ManualResetEvent (false);
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var p = new Process ();
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var launchTimer = new Thread (() => {
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if (p.WaitForExit ((int) launchTimeout.TotalMilliseconds)) {
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Console.WriteLine ($"App finished before launch timeout triggered.");
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} else if (!File.Exists (launchTimeoutFile)) {
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Console.WriteLine ($"Launch timed out after {launchTimeout.TotalSeconds} seconds.");
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launchTimedOut.Set ();
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p.Abort ();
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}
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}) {
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IsBackground = true,
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};
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try {
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p.StartInfo.FileName = commands [0];
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p.StartInfo.Arguments = string.Join (" ", commands.Skip (1));
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p.StartInfo.UseShellExecute = false;
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p.StartInfo.EnvironmentVariables ["LAUNCH_SENTINEL_FILE"] = launchTimeoutFile;
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Console.WriteLine ($"Launching (attempt #{attempt + 1}):");
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Console.WriteLine ($" {p.StartInfo.FileName} {p.StartInfo.Arguments}");
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p.Start ();
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launchTimer.Start ();
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if (!p.WaitForExit ((int) executionTimeout.TotalMilliseconds)) {
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Console.WriteLine ($"Execution timed out after {executionTimeout.TotalSeconds} seconds.");
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p.Abort ();
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p.WaitForExit ();
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}
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launchTimer.Join ();
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exitCode = p.ExitCode;
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if (launchTimedOut.WaitOne (0)) {
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Console.WriteLine ($"Launching again since the launch timeout triggered.");
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continue;
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}
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Console.WriteLine ($"Execution completed with exit code {exitCode}");
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} finally {
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File.Delete (launchTimeoutFile);
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p.Dispose ();
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}
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break;
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}
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Environment.Exit (exitCode);
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