restructure build to separate the 3 main components into 3 subdirectories

libi2pd for core libs

libi2pd_client for i2pd client libs

daemon for i2pd daemon libs

daemon/Daemon.h

@@ -0,0 +1,107 @@
+#ifndef DAEMON_H__
+#define DAEMON_H__
+
+#include <memory>
+#include <string>
+
+namespace i2p
+{
+	namespace util
+	{
+		class Daemon_Singleton_Private;
+		class Daemon_Singleton
+		{
+		public:
+			virtual bool init(int argc, char* argv[]);
+			virtual bool start();
+			virtual bool stop();
+			virtual void run () {};
+
+			bool isDaemon;
+			bool running;
+
+		protected:
+			Daemon_Singleton();
+			virtual ~Daemon_Singleton();
+
+			bool IsService () const;
+
+			// d-pointer for httpServer, httpProxy, etc.
+			class Daemon_Singleton_Private;
+			Daemon_Singleton_Private &d;
+		};
+
+#if defined(QT_GUI_LIB) // check if QT
+#define Daemon i2p::util::DaemonQT::Instance()
+	// dummy, invoked from RunQT	
+    class DaemonQT: public i2p::util::Daemon_Singleton
+	{
+		public:
+
+			static DaemonQT& Instance()
+			{
+				static DaemonQT instance;
+				return instance;
+			}
+    };
+
+#elif defined(ANDROID)
+#define Daemon i2p::util::DaemonAndroid::Instance()
+	// dummy, invoked from android/jni/DaemonAndroid.*
+    class DaemonAndroid: public i2p::util::Daemon_Singleton
+	{
+		public:
+
+			static DaemonAndroid& Instance()
+			{
+				static DaemonAndroid instance;
+				return instance;
+			}
+    };
+
+#elif defined(_WIN32)
+#define Daemon i2p::util::DaemonWin32::Instance()
+		class DaemonWin32 : public Daemon_Singleton
+		{
+		public:
+			static DaemonWin32& Instance()
+			{
+				static DaemonWin32 instance;
+				return instance;
+			}
+
+			bool init(int argc, char* argv[]);
+			bool start();
+			bool stop();
+			void run ();
+		};
+#else
+#define Daemon i2p::util::DaemonLinux::Instance()
+        class DaemonLinux : public Daemon_Singleton
+		{
+			public:
+				static DaemonLinux& Instance()
+				{
+					static DaemonLinux instance;
+					return instance;
+				}
+
+				bool start();
+				bool stop();
+				void run ();
+
+			private:
+
+				std::string pidfile;
+                int pidFH;
+
+			public:
+
+				int gracefulShutdownInterval; // in seconds
+
+		};
+#endif
+	}
+}
+
+#endif // DAEMON_H__