platform_bionic/tests/ScopedSignalHandler.h
Yabin Cui 634816055f support _POSIX_REALTIME_SIGNALS
Bug: 18489947
Change-Id: I2e834d68bc10ca5fc7ebde047b517a3074179475
2014-12-08 21:52:43 -08:00

52 lines
1.6 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.
*/
#ifndef _BIONIC_TESTS_SCOPED_SIGNAL_HANDLER_H
#define _BIONIC_TESTS_SCOPED_SIGNAL_HANDLER_H
#include <signal.h>
#include <string.h>
class ScopedSignalHandler {
public:
ScopedSignalHandler(int signal_number, void (*handler)(int), int sa_flags = 0)
: signal_number_(signal_number) {
memset(&action_, 0, sizeof(action_));
action_.sa_flags = sa_flags;
action_.sa_handler = handler;
sigaction(signal_number_, &action_, &old_action_);
}
ScopedSignalHandler(int signal_number, void (*action)(int, siginfo_t*, void*),
int sa_flags = SA_SIGINFO)
: signal_number_(signal_number) {
memset(&action_, 0, sizeof(action_));
action_.sa_flags = sa_flags;
action_.sa_sigaction = action;
sigaction(signal_number_, &action_, &old_action_);
}
~ScopedSignalHandler() {
sigaction(signal_number_, &old_action_, NULL);
}
private:
struct sigaction action_;
struct sigaction old_action_;
const int signal_number_;
};
#endif // _BIONIC_TESTS_SCOPED_SIGNAL_HANDLER_H