/usr/include/Ice/Service.h is in libzeroc-ice35-dev 3.5.1-6.4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// Copyright (c) 2003-2013 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICE_SERVICE_H
#define ICE_SERVICE_H
#include <IceUtil/Config.h>
#include <Ice/Ice.h>
#ifdef _WIN32
# include <winsvc.h>
#endif
namespace Ice
{
class ICE_API Service
{
public:
Service();
virtual ~Service();
//
// Shutdown the service. The default implementation invokes shutdown()
// on the communicator.
//
virtual bool shutdown();
//
// Notify the service about a signal interrupt. The default
// implementation invokes shutdown().
//
virtual void interrupt();
//
// The primary entry point for services. This function examines
// the given argument vector for reserved options and takes the
// appropriate action. The reserved options are shown below.
//
// Win32:
//
// --service NAME
//
// Unix:
//
// --daemon [--nochdir] [--noclose]
//
// If --service or --daemon are specified, the program runs as
// a service, otherwise the program runs as a regular foreground
// process. Any service-specific (and Ice-specific) options
// are stripped from argv (just as for Ice::initialize()).
//
// The return value is an exit status code: EXIT_FAILURE or
// EXIT_SUCCESS.
//
int main(int&, char*[], const InitializationData& = InitializationData());
int main(int, char* const [], const Ice::InitializationData& = Ice::InitializationData());
#ifdef _WIN32
int main(int&, wchar_t*[], const InitializationData& = InitializationData());
#endif
int main(StringSeq&, const InitializationData& = InitializationData());
//
// Returns the communicator created by the service.
//
Ice::CommunicatorPtr communicator() const;
//
// Returns the Service singleton.
//
static Service* instance();
//
// Indicates whether the program is running as a Win32 service or
// Unix daemon.
//
bool service() const;
//
// Returns the program name. If the program is running as a Win32
// service, the return value is the service name. Otherwise the
// return value is the executable name (i.e., argv[0]).
//
std::string name() const;
//
// Returns true if the operating system supports running the
// program as a Win32 service or Unix daemon.
//
bool checkSystem() const;
//
// Alternative entry point for services that use their own
// command-line options. Instead of invoking main(), the
// program processes its command-line options and invokes
// run(). To run as a Win32 service or Unix daemon, the
// program must first invoke configureService() or
// configureDaemon(), respectively.
//
// The return value is an exit status code: EXIT_FAILURE or
// EXIT_SUCCESS.
//
#ifdef _WIN32
int run(int&, wchar_t*[], const InitializationData& = InitializationData());
#endif
int run(int&, char*[], const InitializationData& = InitializationData());
#ifdef _WIN32
//
// Configures the program to run as a Win32 service with the
// given name.
//
void configureService(const std::string&);
static void setModuleHandle(HMODULE);
#else
//
// Configures the program to run as a Unix daemon. The first
// argument indicates whether the daemon should change its
// working directory to the root directory. The second
// argument indicates whether extraneous file descriptors are
// closed. If the value of the last argument is not an empty
// string, the daemon writes its process ID to the given
// filename.
//
void configureDaemon(bool, bool, const std::string&);
#endif
//
// Invoked by the CtrlCHandler.
//
virtual void handleInterrupt(int);
protected:
//
// Prepare a service for execution, including the creation and
// activation of object adapters and servants.
//
virtual bool start(int, char*[], int&) = 0;
//
// Blocks until the service shuts down. The default implementation
// invokes waitForShutdown() on the communicator.
//
virtual void waitForShutdown();
//
// Clean up resources after shutting down.
//
virtual bool stop();
//
// Initialize a communicator.
//
virtual Ice::CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&);
//
// Log a system error, which includes a description of the
// current system error code.
//
virtual void syserror(const std::string&);
//
// Log an error.
//
virtual void error(const std::string&);
//
// Log a warning.
//
virtual void warning(const std::string&);
//
// Log trace information.
//
virtual void trace(const std::string&);
//
// Log a literal message.
//
virtual void print(const std::string&);
//
// Enable the CtrlCHandler to invoke interrupt() when a signal occurs.
//
void enableInterrupt();
//
// Ignore signals.
//
void disableInterrupt();
//
// Log Helpers
//
typedef LoggerOutput<Service, Service*, &Service::syserror> ServiceSysError;
typedef LoggerOutput<Service, Service*, &Service::error> ServiceError;
typedef LoggerOutput<Service, Service*, &Service::warning> ServiceWarning;
typedef LoggerOutput<Service, Service*, &Service::trace> ServiceTrace;
typedef LoggerOutput<Service, Service*, &Service::print> ServicePrint;
private:
Ice::LoggerPtr _logger;
Ice::CommunicatorPtr _communicator;
bool _nohup;
bool _service;
std::string _name;
static Service* _instance;
#ifdef _WIN32
int runService(int, char*[], const InitializationData&);
void terminateService(DWORD);
bool waitForServiceState(SC_HANDLE, DWORD, SERVICE_STATUS&);
void showServiceStatus(const std::string&, SERVICE_STATUS&);
SERVICE_STATUS_HANDLE _statusHandle;
std::vector<std::string> _serviceArgs;
InitializationData _initData;
public:
void serviceMain(int, wchar_t*[]);
void control(int);
#else
int runDaemon(int, char*[], const InitializationData&);
bool _changeDirectory;
bool _closeFiles;
std::string _pidFile;
#endif
};
} // End of namespace Ice
#endif
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