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added template wxScopedArray<> too
[wxWidgets.git] / include / wx / unix / evtloop.h
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: wx/unix/evtloop.h
3 // Purpose: declares wxEventLoop class
4 // Author: Lukasz Michalski (lm@zork.pl)
5 // Created: 2007-05-07
6 // RCS-ID: $Id$
7 // Copyright: (c) 2007 Lukasz Michalski
8 // Licence: wxWindows licence
9 ///////////////////////////////////////////////////////////////////////////////
10
11 #ifndef _WX_UNIX_EVTLOOP_H_
12 #define _WX_UNIX_EVTLOOP_H_
13
14 #if wxUSE_CONSOLE_EVENTLOOP
15
16 #include "wx/private/fdiodispatcher.h"
17 #include "wx/unix/pipe.h"
18
19 // ----------------------------------------------------------------------------
20 // wxEventLoop
21 // ----------------------------------------------------------------------------
22
23 class WXDLLIMPEXP_BASE wxConsoleEventLoop : public wxEventLoopManual
24 {
25 public:
26 // initialize the event loop, use IsOk() to check if we were successful
27 wxConsoleEventLoop();
28
29 // implement base class pure virtuals
30 virtual bool Pending() const;
31 virtual bool Dispatch();
32 virtual int DispatchTimeout(unsigned long timeout);
33 virtual void WakeUp();
34 virtual bool IsOk() const { return m_dispatcher != NULL; }
35
36 protected:
37 virtual void OnNextIteration();
38
39 private:
40 // pipe used for wake up messages: when a child thread wants to wake up
41 // the event loop in the main thread it writes to this pipe
42 class PipeIOHandler : public wxFDIOHandler
43 {
44 public:
45 // default ctor does nothing, call Create() to really initialize the
46 // object
47 PipeIOHandler() { }
48
49 bool Create();
50
51 // this method can be, and normally is, called from another thread
52 void WakeUp();
53
54 int GetReadFd() { return m_pipe[wxPipe::Read]; }
55
56 // implement wxFDIOHandler pure virtual methods
57 virtual void OnReadWaiting();
58 virtual void OnWriteWaiting() { }
59 virtual void OnExceptionWaiting() { }
60
61 private:
62 wxPipe m_pipe;
63 };
64
65 PipeIOHandler m_wakeupPipe;
66
67 // either wxSelectDispatcher or wxEpollDispatcher
68 wxFDIODispatcher *m_dispatcher;
69
70 DECLARE_NO_COPY_CLASS(wxConsoleEventLoop)
71 };
72
73 #endif // wxUSE_CONSOLE_EVENTLOOP
74
75 #endif // _WX_UNIX_EVTLOOP_H_