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Copy pathSignalCommon.cpp
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138 lines (111 loc) · 4.09 KB
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/*
* Copyright (c) 2018 Ambroz Bizjak
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <aipstack/event_loop/SignalCommon.h>
#if defined(__linux__)
#include <signal.h>
#endif
namespace AIpStack {
#if defined(__linux__)
#define AIPSTACK_FOR_ALL_SIGNALS(X) \
X(SignalType::Interrupt, SIGINT) \
X(SignalType::Terminate, SIGTERM) \
X(SignalType::Hangup, SIGHUP) \
X(SignalType::Quit, SIGQUIT) \
X(SignalType::User1, SIGUSR1) \
X(SignalType::User2, SIGUSR2) \
X(SignalType::Child, SIGCHLD) \
X(SignalType::Alarm, SIGALRM) \
X(SignalType::InputOutput, SIGIO) \
X(SignalType::WindowResize, SIGWINCH)
char const * nativeNameForSignalType(SignalType signal)
{
#define AIPSTACK_NATIVE_NAME_FOR_SIGNAL_TYPE_CASE(sig, signum) \
case sig: return #signum;
switch (signal) {
AIPSTACK_FOR_ALL_SIGNALS(AIPSTACK_NATIVE_NAME_FOR_SIGNAL_TYPE_CASE)
default: return "unknown";
}
#undef AIPSTACK_NATIVE_NAME_FOR_SIGNAL_TYPE_CASE
}
int signalTypeToSignum(SignalType signal)
{
#define AIPSTACK_SIGNAL_TYPE_TO_SIGNUM_CASE(sig, signum) \
case sig: return signum;
switch (signal) {
AIPSTACK_FOR_ALL_SIGNALS(AIPSTACK_SIGNAL_TYPE_TO_SIGNUM_CASE)
default: return -1;
}
#undef AIPSTACK_SIGNAL_TYPE_TO_SIGNUM_CASE
}
SignalType signumToSignalType(int signum)
{
#define AIPSTACK_SIGNUM_TO_SIGNAL_TYPE_CASE(sig, signum) \
case signum: return sig;
switch (signum) {
AIPSTACK_FOR_ALL_SIGNALS(AIPSTACK_SIGNUM_TO_SIGNAL_TYPE_CASE)
default: return SignalType::None;
}
#undef AIPSTACK_SIGNUM_TO_SIGNAL_TYPE_CASE
}
void addSignalsToSet(SignalType signals, ::sigset_t &set)
{
#define AIPSTACK_ADD_SIGNALS_TO_SET_SIGNAL(sig, signum) \
if ((signals & sig) != Enum0) { \
::sigaddset(&set, signum); \
}
AIPSTACK_FOR_ALL_SIGNALS(AIPSTACK_ADD_SIGNALS_TO_SET_SIGNAL)
#undef AIPSTACK_ADD_SIGNALS_TO_SET_SIGNAL
}
void initSigSetToSignals(::sigset_t &set, SignalType signals)
{
::sigemptyset(&set);
addSignalsToSet(signals, set);
}
SignalType getSignalsFromSigSet(::sigset_t const &set)
{
SignalType signals = SignalType::None;
#define AIPSTACK_GET_SIGNALS_FROM_SIGSET_SIGNAL(sig, signum) \
if (::sigismember(&set, signum)) { \
signals |= sig; \
}
AIPSTACK_FOR_ALL_SIGNALS(AIPSTACK_GET_SIGNALS_FROM_SIGSET_SIGNAL)
#undef AIPSTACK_GET_SIGNALS_FROM_SIGSET_SIGNAL
return signals;
}
#elif defined(_WIN32)
char const * nativeNameForSignalType(SignalType signal)
{
switch (signal) {
case SignalType::Interrupt:
return "CTRL_C_EVENT";
case SignalType::Break:
return "CTRL_BREAK_EVENT";
case SignalType::Hangup:
return "CTRL_CLOSE_EVENT";
default:
return "unknown";
}
}
#endif
}