platform_bionic/libc/private/ScopedSignalHandler.h
Chih-Hung Hsieh 770032ddfa Fix/suppress bionic google-explicit-constructor warnings
* Add explicit to conversion constructors/operators

Bug: 28341362
Test: make with WITH_TIDY=1 DEFAULT_GLOBAL_TIDY_CHECKS=-*,google-explicit-constructor
Change-Id: Id1ad0327c1b8c6f094bcbb3ae599bc1f716b3f2f
2019-01-02 11:04:05 -08:00

47 lines
1.5 KiB
C++

/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <signal.h>
class ScopedSignalHandler {
public:
ScopedSignalHandler(int signal_number, void (*handler)(int), int sa_flags = 0)
: signal_number_(signal_number) {
action_ = { .sa_flags = sa_flags, .sa_handler = handler };
sigaction64(signal_number_, &action_, &old_action_);
}
ScopedSignalHandler(int signal_number, void (*action)(int, siginfo_t*, void*),
int sa_flags = SA_SIGINFO)
: signal_number_(signal_number) {
action_ = { .sa_flags = sa_flags, .sa_sigaction = action };
sigaction64(signal_number_, &action_, &old_action_);
}
explicit ScopedSignalHandler(int signal_number) : signal_number_(signal_number) {
sigaction64(signal_number, nullptr, &old_action_);
}
~ScopedSignalHandler() {
sigaction64(signal_number_, &old_action_, nullptr);
}
struct sigaction64 action_;
struct sigaction64 old_action_;
const int signal_number_;
};