1  /*
  2  * Copyright (c) 2013-2025, The PurpleI2P Project
  3  *
  4  * This file is part of Purple i2pd project and licensed under BSD3
  5  *
  6  * See full license text in LICENSE file at top of project tree
  7  */
  8  
  9  #ifndef DAEMON_H__
 10  #define DAEMON_H__
 11  
 12  #include <memory>
 13  #include <string>
 14  #include <string_view>
 15  #include <ostream>
 16  #include <sstream>
 17  
 18  namespace i2p
 19  {
 20  namespace util
 21  {
 22  	class Daemon_Singleton_Private;
 23  	class Daemon_Singleton
 24  	{
 25  	public:
 26  
 27  		virtual bool init (int argc, char* argv[], std::shared_ptr<std::ostream> logstream);
 28  		virtual bool init (int argc, char* argv[]);
 29  		virtual bool start ();
 30  		virtual bool stop ();
 31  		virtual void run () {};
 32  		
 33  		virtual int GetGracefulShutdownInterval () const { return 0; };
 34  		void setDataDir (std::string_view path);
 35  		
 36  	public:
 37  		
 38  		bool isDaemon;
 39  		bool running;
 40  
 41  	protected:
 42  
 43  		Daemon_Singleton ();
 44  		virtual ~Daemon_Singleton ();
 45  
 46  		bool IsService () const;
 47  
 48  		// d-pointer for httpServer, httpProxy, etc.
 49  		class Daemon_Singleton_Private;
 50  		Daemon_Singleton_Private &d;
 51  
 52  	private:
 53  
 54  		std::string DaemonDataDir;
 55  	};
 56  
 57  	void PrintMainWindowText (std::stringstream& s); // for GUI
 58  	
 59  #if defined(QT_GUI_LIB) // check if QT
 60  #define Daemon i2p::util::DaemonQT::Instance()
 61  	// dummy, invoked from RunQT
 62  	class DaemonQT: public i2p::util::Daemon_Singleton
 63  	{
 64  		public:
 65  
 66  			static DaemonQT& Instance()
 67  			{
 68  				static DaemonQT instance;
 69  				return instance;
 70  			}
 71  	};
 72  
 73  #elif defined(_WIN32)
 74  #define Daemon i2p::util::DaemonWin32::Instance()
 75  	class DaemonWin32 : public Daemon_Singleton
 76  	{
 77  		public:
 78  
 79  			static DaemonWin32& Instance()
 80  			{
 81  				static DaemonWin32 instance;
 82  				return instance;
 83  			}
 84  	
 85  			bool init(int argc, char* argv[]);
 86  			bool start();
 87  			bool stop();
 88  			void run ();
 89  
 90  			int GetGracefulShutdownInterval () const;
 91  
 92  		public:
 93  		
 94  			bool isGraceful;
 95  
 96  		private:
 97  
 98  			DaemonWin32 (): isGraceful(false) {}
 99  	};
100  #elif (defined(ANDROID) && !defined(ANDROID_BINARY))
101  #define Daemon i2p::util::DaemonAndroid::Instance()
102  	// dummy, invoked from android/jni/DaemonAndroid.*
103  	class DaemonAndroid: public i2p::util::Daemon_Singleton
104  	{
105  		public:
106  
107  			static DaemonAndroid& Instance()
108  			{
109  				static DaemonAndroid instance;
110  				return instance;
111  			}
112  	};
113  #else // Unix-like systems, including Linux
114  	class DaemonUnix : public Daemon_Singleton
115  	{
116  		public:
117  
118  			static DaemonUnix& Instance()
119  			{
120  				static DaemonUnix instance;
121  				return instance;
122  			}
123  
124  			bool start();
125  			bool stop();
126  			void run ();
127  
128  			int GetGracefulShutdownInterval () const { return gracefulShutdownInterval; };
129  			
130  		private:
131  
132  			std::string pidfile;
133  			int pidFH;
134  
135  		public:
136  
137  			int gracefulShutdownInterval; // in seconds
138  	};
139  #if !defined(__HAIKU__)
140  	#define Daemon i2p::util::DaemonUnix::Instance()
141  #else
142  	class DaemonHaiku: public DaemonUnix
143  	{
144  		public:
145  			
146  			static DaemonHaiku& Instance ()
147  			{
148  				static DaemonHaiku instance;
149  				return instance;
150  			}	
151  			
152  			bool start ();
153  			void run ();
154  	};	
155  #define Daemon i2p::util::DaemonHaiku::Instance()
156  #endif
157  	
158  #endif
159  }
160  }
161  
162  #endif // DAEMON_H__