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56 lines
1.4 KiB
56 lines
1.4 KiB
// |
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// Copyright (C) 2012 The Android Open Source Project |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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#include "update_engine/common/terminator.h" |
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#include <cstdlib> |
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namespace chromeos_update_engine { |
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volatile sig_atomic_t Terminator::exit_status_ = 1; // default exit status |
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volatile sig_atomic_t Terminator::exit_blocked_ = 0; |
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volatile sig_atomic_t Terminator::exit_requested_ = 0; |
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void Terminator::Init() { |
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exit_blocked_ = 0; |
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exit_requested_ = 0; |
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signal(SIGTERM, HandleSignal); |
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} |
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void Terminator::Init(int exit_status) { |
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exit_status_ = exit_status; |
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Init(); |
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} |
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void Terminator::Exit() { |
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exit(exit_status_); |
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} |
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void Terminator::HandleSignal(int signum) { |
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if (exit_blocked_ == 0) { |
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Exit(); |
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} |
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exit_requested_ = 1; |
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} |
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ScopedTerminatorExitUnblocker::~ScopedTerminatorExitUnblocker() { |
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Terminator::set_exit_blocked(false); |
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if (Terminator::exit_requested()) { |
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Terminator::Exit(); |
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} |
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} |
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} // namespace chromeos_update_engine
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