remoting/host/shutdown_watchdog.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "remoting/host/shutdown_watchdog.h"
   6
   7 #include <stdlib.h>  // For _exit() on Windows.
   8
   9 #include "base/logging.h"
  10
  11 #if defined(OS_POSIX)
  12 #include <unistd.h>
  13 #endif  // defined(OS_POSIX)
  14
  15 namespace remoting {
  16
  17 ShutdownWatchdog::ShutdownWatchdog(const base::TimeDelta& duration)
  18     : base::Watchdog(duration, "Shutdown watchdog", true) {
  19 }
  20
  21 void ShutdownWatchdog::SetExitCode(int exit_code) {
  22   base::AutoLock lock(lock_);
  23   exit_code_ = exit_code;
  24 }
  25
  26 void ShutdownWatchdog::Alarm() {
  27   // Holding a lock while calling _exit() might not be a safe thing to do, so
  28   // make a local copy.
  29   int exit_code;
  30   {
  31     base::AutoLock lock(lock_);
  32     exit_code = exit_code_;
  33   }
  34
  35   LOG(ERROR) << "Shutdown watchdog triggered, exiting with code " << exit_code;
  36   _exit(exit_code);
  37 }
  38
  39 }  // namespace remoting