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.cpp

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2009-2021, Tomasz Sowa
+ * Copyright (c) 2009-2022, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -37,6 +37,7 @@
 #include "log.h"
 #include "db/db.h"
 #include "cur.h"
+#include "dirs.h"
 
 
 
@@ -49,6 +50,7 @@ Mounts::Mounts()
 {
 	pmount = &empty_mount;
 	skip_static = false;
+	dirs = nullptr;
 }
 
 
@@ -99,7 +101,7 @@ void Mounts::CreateMounts()
 	CreateMountFs();
 	CreateMountPar();
 
-	plugin->Call((Session*)0, WINIX_ADD_MOUNTS);
+	plugin->Call(WINIX_ADD_MOUNTS);
 
 	empty_mount.param.resize(mount_par_tab.size());
 	empty_mount.ClearParams();
@@ -118,12 +120,6 @@ void Mounts::SetDb(Db * pdb)
 	db = pdb;
 }
 
-void Mounts::SetCur(Cur * pcur)
-{
-	cur = pcur;
-}
-
-
 
 int Mounts::AddMountType(const wchar_t * type)
 {
@@ -221,13 +217,11 @@ void Mounts::ReadMounts(const std::wstring & mounts)
 
 	mount_parser.Parse(mounts, mount_tab);
 
-	CalcCurMount();
-
 	// IMPROVE ME
 	// cur->mount is pointing to the empty mount (it is set in functions.cpp in CheckSpecialFile method)
 	// may would be better to call WINIX_FSTAB_CHANGED after the cur->mount is set?
 	// some plugins are using 'cur' object
-	plugin->Call((Session*)0, WINIX_FSTAB_CHANGED);
+	plugin->Call(WINIX_FSTAB_CHANGED);
 }
 
 
@@ -292,7 +286,7 @@ void Mounts::MountCmsForRoot()
 
 
 
-Mount * Mounts::CalcCurMount()
+Mount * Mounts::CalcCurMount(Request * request)
 {
 std::vector<Item*>::reverse_iterator i;
 
@@ -300,10 +294,10 @@ std::vector<Item*>::reverse_iterator i;
 
 	// when the program starts (when the dir_tab is empty() 
 	// we don't want to call MountCmsForRoot()
-	if( cur->request->dir_tab.empty() )
+	if( request->dir_tab.empty() )
 		return pmount;
 	
-	for(i = cur->request->dir_tab.rbegin() ; i!=cur->request->dir_tab.rend() ; ++i)
+	for(i = request->dir_tab.rbegin() ; i!=request->dir_tab.rend() ; ++i)
 	{
 		std::map<long, Mount>::iterator m = mount_tab.find( (*i)->id );