allow a request to be processed in a job

Now we allow a request to be passed into a job queue,
and after the job finishes the request is passed into
a controller again. In order to achieve this we have
a requests queue in System, when we put a request
to the job this Request structure is preserved in the
queue and for a new request a new Request is added to
the queue.

while here:
- remove App::Lock()/Unlock(), use scoped locking
- fix: Plugin now has a Call method which takes ModelConnector
  and a logger (used in multithreaded environment)
- BaseThread has a main_model_connector pointer
  to the main (from the main thread) model connector
- the FastCGI structure fcgi_request moved from App to Request
- some methods for handling requests moved from App to Request
- small refactoring in main.cpp
- add Http class (a http client)

winixd/core/mounts.h

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2009-2018, Tomasz Sowa
+ * Copyright (c) 2009-2022, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -42,7 +42,6 @@
 #include <vector>
 #include "mount.h"
 #include "error.h"
-#include "dirs.h"
 #include "db/db.h"
 #include "request.h"
 #include "mountparser.h"
@@ -51,7 +50,7 @@
 
 namespace Winix
 {
-
+class Dirs;
 
 
 
@@ -115,7 +114,6 @@ public:
 
 	void SetDirs(Dirs * pdirs);
 	void SetDb(Db * pdb);
-	void SetCur(Cur * pcur);
 
 	// dir_id, mount_point
 	typedef std::map<long, Mount> MountTab;
@@ -126,7 +124,7 @@ public:
 	void ReadMounts(const std::wstring & mounts);
 	void ReadMounts();
 
-	Mount * CalcCurMount();
+	Mount * CalcCurMount(Request * request);
 	Mount * CalcMount(long dir_id);
 	
 	// current mount point
@@ -146,7 +144,6 @@ private:
 
 	Db   * db;
 	Dirs * dirs;
-	Cur  * cur;
 
 	bool skip_static;