fixed: when signal comes winix properly exits

fixed:   when winix exits the session data were not properly destroyed (memory leak)
         we should set request.session pointer to each session when deleting sessions
         from session_container
         the session data were not properly destroyed when winix checked for 
         outdated sessions (and when it was removing them)
fixed:   performance (memcpy used too often)
         in some places there were reserve method used (on std::wstring/std::string objects)
         especially in AssignString() method and TextStream<> object
         if we add a new string we should check the new size
         and only call reserve() if the new size will be greater than existing one
         (plus some constant)
changed: fcgi objects moved to App class (from Request)
         now we use thread safe methods (e.g. FCGX_Accept_r)
added:   log_plugin_call option to the config
         default: false
         when true winix log when a plugin function is called
added:   winix parameter 'nostat' for not calculating statistics
         (useful when making performance tests)


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@680 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/app.h

@@ -18,6 +18,7 @@
 #include <pwd.h>
 #include <grp.h>
 #include <errno.h>
+#include <fcgiapp.h>
 
 #include "config.h"
 #include "system.h"
@@ -47,12 +48,14 @@ public:
 
 	App();
 
+	bool InitFCGI();
+	bool DropPrivileges();
 	bool Init();
 	void Start();
 	void Close();
-	bool DropPrivileges();
 	void LogUserGroups();
 	bool Demonize();
+	void WasStopSignal();
 
 	// configuration read from a config file
 	Config config;
@@ -120,12 +123,13 @@ private:
 	Compress compress;
 	HTMLFilter html_filter;
 	std::wstring clean_html, html_with_debug;
+	volatile bool was_stop_signal;
+	FCGX_Request fcgi_request;
+	int fcgi_socket;
 
-	bool CreateFCGISocket();
 	void ProcessRequestThrow();
 	void ProcessRequest();
 	bool BaseUrlRedirect();
-	void DeleteAllPluginsData();
 	void MakePage();
 	void Make();
 	void SaveSessionsIfNeeded(); // !! wywalic do managara sesji??