mirror of https://github.com/Icinga/icinga2.git
216 lines
6.7 KiB
C++
216 lines
6.7 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef APPLICATION_H
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#define APPLICATION_H
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#include "base/i2-base.hpp"
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#include "base/application.thpp"
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#include "base/threadpool.hpp"
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#include "base/utility.hpp"
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#include "base/logger.hpp"
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#include <ostream>
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namespace icinga
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{
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/**
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* Abstract base class for applications.
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*
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* @ingroup base
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*/
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class I2_BASE_API Application : public ObjectImpl<Application> {
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public:
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DECLARE_OBJECT(Application);
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static boost::signals2::signal<void (void)> OnReopenLogs;
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~Application(void);
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static void InitializeBase(void);
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static void UninitializeBase(void);
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static Application::Ptr GetInstance(void);
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static void Exit(int rc);
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int Run(void);
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/**
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* Starts the application.
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*
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* @returns The exit code of the application.
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*/
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virtual int Main(void) = 0;
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static void SetResourceLimits(void);
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static int GetArgC(void);
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static void SetArgC(int argc);
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static char **GetArgV(void);
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static void SetArgV(char **argv);
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static void InstallExceptionHandlers(void);
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static void RequestShutdown(void);
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static void RequestRestart(void);
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static void RequestReopenLogs(void);
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static bool IsShuttingDown(void);
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static void SetDebuggingSeverity(LogSeverity severity);
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static LogSeverity GetDebuggingSeverity(void);
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void UpdatePidFile(const String& filename, pid_t pid = Utility::GetPid());
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void ClosePidFile(bool unlink);
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static pid_t ReadPidFile(const String& filename);
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static String GetExePath(const String& argv0);
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static String GetPrefixDir(void);
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static void DeclarePrefixDir(const String& path);
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static String GetSysconfDir(void);
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static void DeclareSysconfDir(const String& path);
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static String GetZonesDir(void);
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static void DeclareZonesDir(const String& path);
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static String GetRunDir(void);
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static void DeclareRunDir(const String& path);
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static String GetLocalStateDir(void);
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static void DeclareLocalStateDir(const String& path);
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static String GetPkgDataDir(void);
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static void DeclarePkgDataDir(const String& path);
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static String GetIncludeConfDir(void);
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static void DeclareIncludeConfDir(const String& path);
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static String GetStatePath(void);
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static void DeclareStatePath(const String& path);
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static String GetModAttrPath(void);
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static void DeclareModAttrPath(const String& path);
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static String GetObjectsPath(void);
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static void DeclareObjectsPath(const String& path);
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static String GetVarsPath(void);
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static void DeclareVarsPath(const String& path);
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static String GetPidPath(void);
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static void DeclarePidPath(const String& path);
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static String GetRunAsUser(void);
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static void DeclareRunAsUser(const String& user);
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static String GetRunAsGroup(void);
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static void DeclareRunAsGroup(const String& group);
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static int GetRLimitFiles(void);
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static int GetDefaultRLimitFiles(void);
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static void DeclareRLimitFiles(int limit);
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static int GetRLimitProcesses(void);
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static int GetDefaultRLimitProcesses(void);
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static void DeclareRLimitProcesses(int limit);
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static int GetRLimitStack(void);
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static int GetDefaultRLimitStack(void);
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static void DeclareRLimitStack(int limit);
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static int GetConcurrency(void);
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static void DeclareConcurrency(int ncpus);
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static ThreadPool& GetTP(void);
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static String GetAppVersion(void);
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static String GetAppSpecVersion(void);
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static double GetStartTime(void);
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static void SetStartTime(double ts);
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static double GetMainTime(void);
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static void SetMainTime(double ts);
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static bool GetScriptDebuggerEnabled(void);
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static void SetScriptDebuggerEnabled(bool enabled);
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static double GetLastReloadFailed(void);
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static void SetLastReloadFailed(double ts);
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static void DisplayInfoMessage(std::ostream& os, bool skipVersion = false);
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protected:
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virtual void OnConfigLoaded(void) override;
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virtual void Stop(bool runtimeRemoved) override;
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void RunEventLoop(void);
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pid_t StartReloadProcess(void);
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virtual void OnShutdown(void);
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virtual void ValidateName(const String& value, const ValidationUtils& utils) override;
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private:
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static Application::Ptr m_Instance; /**< The application instance. */
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static bool m_ShuttingDown; /**< Whether the application is in the process of
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shutting down. */
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static bool m_RequestRestart; /**< A restart was requested through SIGHUP */
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static pid_t m_ReloadProcess; /**< The PID of a subprocess doing a reload,
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only valid when l_Restarting==true */
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static bool m_RequestReopenLogs; /**< Whether we should re-open log files. */
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static int m_ArgC; /**< The number of command-line arguments. */
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static char **m_ArgV; /**< Command-line arguments. */
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FILE *m_PidFile; /**< The PID file */
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static bool m_Debugging; /**< Whether debugging is enabled. */
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static LogSeverity m_DebuggingSeverity; /**< Whether debugging severity is set. */
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static double m_StartTime;
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static double m_MainTime;
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static bool m_ScriptDebuggerEnabled;
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static double m_LastReloadFailed;
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#ifndef _WIN32
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static void SigIntTermHandler(int signum);
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#else /* _WIN32 */
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static BOOL WINAPI CtrlHandler(DWORD type);
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static LONG WINAPI SEHUnhandledExceptionFilter(PEXCEPTION_POINTERS exi);
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#endif /* _WIN32 */
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static void DisplayBugMessage(std::ostream& os);
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static void SigAbrtHandler(int signum);
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static void SigUsr1Handler(int signum);
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static void ExceptionHandler(void);
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static String GetCrashReportFilename(void);
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static void AttachDebugger(const String& filename, bool interactive);
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};
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}
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#endif /* APPLICATION_H */
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