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/*----------------------------------------------------------------------
UnixSignalService: At present, this defines a SIGUSR2 handler and
sets the shutdown flag when that signal has been raised.
This service is instantiated at job startup.
----------------------------------------------------------------------*/
#include <iostream>
#include <cstdlib>
#include "FWCore/ServiceRegistry/interface/ServiceMaker.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/UnixSignalHandlers.h"
#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
namespace edm {
namespace service {
class UnixSignalService {
public:
explicit UnixSignalService(ParameterSet const& ps);
~UnixSignalService();
static void fillDescriptions(ConfigurationDescriptions& descriptions);
private:
bool enableSigInt_;
}; // class UnixSignalService
} // end of namespace service
} // end of namespace edm
namespace edm {
namespace service {
UnixSignalService::UnixSignalService(ParameterSet const& pset)
: enableSigInt_(pset.getUntrackedParameter<bool>("EnableCtrlC")) {
installCustomHandler(SIGUSR2, ep_sigusr2);
if (enableSigInt_)
installCustomHandler(SIGINT, ep_sigusr2);
}
UnixSignalService::~UnixSignalService() {}
void UnixSignalService::fillDescriptions(ConfigurationDescriptions& descriptions) {
ParameterSetDescription desc;
desc.addUntracked<bool>("EnableCtrlC", true)
->setComment(
"If 'true', you can stop a cmsRun job gracefully by sending it a '<control> c' keyboard interrupt (i.e. "
"SIGINT).");
descriptions.add("UnixSignalService", desc);
descriptions.setComment(
"This service sets up unix signal handlers for the unix signal SIGUSR2 and optionally SIGINT"
" so that when cmsRun is sent a signal the application will stop processing and shut down gracefully.");
}
} // end of namespace service
} // end of namespace edm
using edm::service::UnixSignalService;
typedef edm::serviceregistry::ParameterSetMaker<UnixSignalService> UnixSignalMaker;
DEFINE_FWK_SERVICE_MAKER(UnixSignalService, UnixSignalMaker);
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