worker.h
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1 /*
2  * Copyright (C) 2003-2005 Tommi Maekitalo
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 
29 
30 #ifndef TNT_WORKER_H
31 #define TNT_WORKER_H
32 
33 #include <string>
34 #include <cxxtools/thread.h>
35 #include <cxxtools/mutex.h>
36 #include <tnt/comploader.h>
37 #include <tntnetimpl.h>
38 #include <tnt/scope.h>
39 #include <tnt/threadcontext.h>
40 
42 
43 namespace tnt
44 {
45  class HttpRequest;
46  class HttpReply;
47 
48  class Worker : public cxxtools::DetachedThread, private ThreadContext
49  {
50  typedef std::set<Worker*> workers_type;
51 
52  static cxxtools::Mutex _mutex;
53  TntnetImpl& _application;
54  static Comploader _comploader;
55 
56  Scope _threadScope;
57  pthread_t _threadId;
58  const char* _state;
59  time_t _lastWaitTime;
60 
61  static workers_type _workers;
62 
63  bool processRequest(HttpRequest& request, std::iostream& socket, unsigned keepAliveCount);
64  void logRequest(const HttpRequest& request, const HttpReply& reply, unsigned httpReturn);
65  void healthCheck(time_t currentTime);
66 
67  // thread context methods
68  void touch(); // wake watchdog timer
69  Scope& getScope();
70 
71  public:
72  explicit Worker(TntnetImpl& app);
73 
74  virtual void run();
75 
76  void dispatch(HttpRequest& request, HttpReply& reply);
77 
78  static void timer();
79 
80  static workers_type::size_type getCountThreads();
81 
82  static Comploader& getComponentLoader()
83  { return _comploader; }
84  };
85 }
86 
87 #endif // TNT_WORKER_H
88