blob: 97c9d7f1af8c7d2807a46a33248e88f5d894f2b3 [file] [log] [blame]
// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <signal.h>
#include <gtest/gtest_prod.h> // for FRIEND_TEST
namespace chromeos_update_engine {
// A class allowing graceful delayed exit.
class Terminator {
// Initializes the terminator and sets up signal handlers.
static void Init();
static void Init(int exit_status);
// Terminates the current process.
static void Exit();
// Set to true if the terminator should block termination requests in an
// attempt to block exiting.
static void set_exit_blocked(bool block) { exit_blocked_ = block ? 1 : 0; }
static bool exit_blocked() { return exit_blocked_ != 0; }
// Returns true if the system is trying to terminate the process, false
// otherwise. Returns true only if exit was blocked when the termination
// request arrived.
static bool exit_requested() { return exit_requested_ != 0; }
FRIEND_TEST(TerminatorTest, HandleSignalTest);
FRIEND_TEST(TerminatorDeathTest, ScopedTerminatorExitUnblockerExitTest);
// The signal handler.
static void HandleSignal(int signum);
static volatile sig_atomic_t exit_status_;
static volatile sig_atomic_t exit_blocked_;
static volatile sig_atomic_t exit_requested_;
class ScopedTerminatorExitUnblocker {
} // namespace chromeos_update_engine