icinga2/lib/base/application.h

134 lines
4.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef APPLICATION_H
#define APPLICATION_H
#include "base/i2-base.h"
#include "base/threadpool.h"
#include "base/dynamicobject.h"
namespace icinga {
class Component;
/**
* Abstract base class for applications.
*
* @ingroup base
*/
class I2_BASE_API Application : public DynamicObject {
public:
DECLARE_PTR_TYPEDEFS(Application);
~Application(void);
static Application::Ptr GetInstance(void);
int Run(void);
/**
* Starts the application.
*
* @returns The exit code of the application.
*/
virtual int Main(void) = 0;
static int GetArgC(void);
static void SetArgC(int argc);
static char **GetArgV(void);
static void SetArgV(char **argv);
static void InstallExceptionHandlers(void);
static void RequestShutdown(void);
static void RequestRestart(void);
static void SetDebugging(bool debug);
static bool IsDebugging(void);
void UpdatePidFile(const String& filename);
void ClosePidFile(void);
static String GetExePath(const String& argv0);
static String GetPrefixDir(void);
static void SetPrefixDir(const String& path);
static String GetLocalStateDir(void);
static void SetLocalStateDir(const String& path);
static String GetPkgLibDir(void);
static void SetPkgLibDir(const String& path);
static String GetPkgDataDir(void);
static void SetPkgDataDir(const String& path);
static String GetStatePath(void);
static void SetStatePath(const String& path);
static String GetPidPath(void);
static void SetPidPath(const String& path);
static String GetApplicationType(void);
static void SetApplicationType(const String& type);
static ThreadPool& GetTP(void);
protected:
virtual void OnConfigLoaded(void);
virtual void Stop(void);
void RunEventLoop(void) const;
virtual void OnShutdown(void) = 0;
private:
static Application *m_Instance; /**< The application instance. */
static bool m_ShuttingDown; /**< Whether the application is in the process of
shutting down. */
static bool m_Restarting;
static int m_ArgC; /**< The number of command-line arguments. */
static char **m_ArgV; /**< Command-line arguments. */
FILE *m_PidFile; /**< The PID file */
static bool m_Debugging; /**< Whether debugging is enabled. */
#ifndef _WIN32
static void SigIntHandler(int signum);
#else /* _WIN32 */
static BOOL WINAPI CtrlHandler(DWORD type);
static LONG WINAPI SEHUnhandledExceptionFilter(PEXCEPTION_POINTERS exi);
#endif /* _WIN32 */
static void DisplayBugMessage(void);
static void SigAbrtHandler(int signum);
static void ExceptionHandler(void);
static void TimeWatchThreadProc(void);
static void NewTxTimerHandler(void);
static void ShutdownTimerHandler(void);
};
}
#endif /* APPLICATION_H */