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// **********************************************************************
//
// Copyright (c) 2003
// ZeroC, Inc.
// Billerica, MA, USA
//
// All Rights Reserved.
//
// Ice is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation.
//
// **********************************************************************
#include <Ice/Application.h>
using namespace std;
using namespace Ice;
const char* Application::_appName = 0;
CommunicatorPtr Application::_communicator;
bool Application::_interrupted = false;
#ifndef _WIN32
const int Application::signals[] = { SIGHUP, SIGINT, SIGTERM };
sigset_t Application::signalSet;
#endif
Ice::Application::Application()
{
#ifndef _WIN32
sigemptyset(&signalSet);
for (unsigned i = 0; i < sizeof(signals) / sizeof(*signals); ++i)
{
sigaddset(&signalSet, signals[i]);
}
#endif
}
Ice::Application::~Application()
{
}
int
Ice::Application::main(int argc, char* argv[], const char* configFile)
{
if(_communicator)
{
cerr << argv[0] << ": only one instance of the Application class can be used" << endl;
return EXIT_FAILURE;
}
Application::_interrupted = false;
_appName = argv[0];
int status;
try
{
if(configFile)
{
PropertiesPtr properties = createProperties(argc, argv);
properties->load(configFile);
_communicator = initializeWithProperties(argc, argv, properties);
}
else
{
_communicator = initialize(argc, argv);
}
status = run(argc, argv);
}
catch(const Exception& ex)
{
cerr << _appName << ": " << ex << endl;
status = EXIT_FAILURE;
}
catch(const std::exception& ex)
{
cerr << _appName << ": std::exception: " << ex.what() << endl;
status = EXIT_FAILURE;
}
catch(const std::string& msg)
{
cerr << _appName << ": " << msg << endl;
status = EXIT_FAILURE;
}
catch(const char * msg)
{
cerr << _appName << ": " << msg << endl;
status = EXIT_FAILURE;
}
catch(...)
{
cerr << _appName << ": unknown exception" << endl;
status = EXIT_FAILURE;
}
if(_communicator)
{
try
{
_communicator->destroy();
}
catch(const Exception& ex)
{
cerr << _appName << ": " << ex << endl;
status = EXIT_FAILURE;
}
catch(const std::exception& ex)
{
cerr << _appName << ": std::exception: " << ex.what() << endl;
status = EXIT_FAILURE;
}
catch(const std::string& msg)
{
cerr << _appName << ": " << msg << endl;
status = EXIT_FAILURE;
}
catch(const char * msg)
{
cerr << _appName << ": " << msg << endl;
status = EXIT_FAILURE;
}
catch(...)
{
cerr << _appName << ": unknown exception" << endl;
status = EXIT_FAILURE;
}
_communicator = 0;
}
return status;
}
const char*
Ice::Application::appName()
{
return _appName;
}
CommunicatorPtr
Ice::Application::communicator()
{
return _communicator;
}
#ifdef _WIN32
BOOL WINAPI
Ice::interruptHandler(DWORD)
{
Application::_interrupted = true;
//
// Don't use Application::communicator(), this is not signal-safe.
//
assert(Application::_communicator);
Application::_communicator->signalShutdown();
return TRUE;
}
enum InterruptDisposition { Shutdown, Ignore, Default };
static InterruptDisposition currentDisposition = Default;
void
Ice::Application::shutdownOnInterrupt()
{
SetConsoleCtrlHandler(NULL, FALSE);
SetConsoleCtrlHandler(interruptHandler, TRUE);
currentDisposition = Shutdown;
}
void
Ice::Application::ignoreInterrupt()
{
SetConsoleCtrlHandler(interruptHandler, FALSE);
SetConsoleCtrlHandler(NULL, TRUE);
currentDisposition = Ignore;
}
void
Ice::Application::defaultInterrupt()
{
SetConsoleCtrlHandler(interruptHandler, FALSE);
SetConsoleCtrlHandler(NULL, FALSE);
currentDisposition = Default;
}
void
Ice::Application::holdInterrupt()
{
//
// With Windows, we can't block signals and
// remember them the way we can with UNIX,
// so "holding" an interrupt is the same as
// ignoring it.
//
SetConsoleCtrlHandler(interruptHandler, FALSE);
SetConsoleCtrlHandler(NULL, TRUE);
}
void
Ice::Application::releaseInterrupt()
{
//
// Restore current signal disposition.
//
switch(currentDisposition)
{
case Shutdown:
{
shutdownOnInterrupt();
break;
}
case Ignore:
{
ignoreInterrupt();
break;
}
case Default:
{
defaultInterrupt();
break;
}
default:
{
assert(false);
break;
}
}
}
#else
void
Ice::interruptHandler(int)
{
Application::_interrupted = true;
//
// Don't use Application::communicator(), this is not signal-safe.
//
assert(Application::_communicator);
Application::_communicator->signalShutdown();
}
void
Ice::Application::shutdownOnInterrupt()
{
struct sigaction action;
memset(&action, 0, sizeof(action));
action.sa_handler = interruptHandler;
action.sa_mask = signalSet;
action.sa_flags = SA_RESTART;
for (unsigned i = 0; i < sizeof(signals) / sizeof(*signals); ++i)
{
sigaction(signals[i], &action, 0);
}
}
void
Ice::Application::ignoreInterrupt()
{
struct sigaction action;
memset(&action, 0, sizeof(action));
action.sa_handler = SIG_IGN;
action.sa_mask = signalSet;
action.sa_flags = SA_RESTART;
for (unsigned i = 0; i < sizeof(signals) / sizeof(*signals); ++i)
{
sigaction(signals[i], &action, 0);
}
}
void
Ice::Application::defaultInterrupt()
{
struct sigaction action;
memset(&action, 0, sizeof(action));
action.sa_handler = SIG_DFL;
action.sa_mask = signalSet;
action.sa_flags = SA_RESTART;
for (unsigned i = 0; i < sizeof(signals) / sizeof(*signals); ++i)
{
sigaction(signals[i], &action, 0);
}
}
void
Ice::Application::holdInterrupt()
{
sigprocmask(SIG_BLOCK, &signalSet, 0);
}
void
Ice::Application::releaseInterrupt()
{
sigprocmask(SIG_UNBLOCK, &signalSet, 0);
}
#endif
bool
Ice::Application::interrupted()
{
return Application::_interrupted;
}
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