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 // Copyright:   (c) 2007 Lukasz Michalski
7 // Licence:     wxWindows licence
8 ///////////////////////////////////////////////////////////////////////////////
9 
10 #ifndef _WX_UNIX_EVTLOOP_H_
11 #define _WX_UNIX_EVTLOOP_H_
12 
13 #if wxUSE_CONSOLE_EVENTLOOP
14 
15 // ----------------------------------------------------------------------------
16 // wxConsoleEventLoop
17 // ----------------------------------------------------------------------------
18 
19 class wxEventLoopSource;
20 class wxFDIODispatcher;
21 class wxWakeUpPipeMT;
22 
23 class WXDLLIMPEXP_BASE wxConsoleEventLoop
24 #ifdef __WXOSX__
25 : public wxCFEventLoop
26 #else
27 : public wxEventLoopManual
28 #endif
29 {
30 public:
31     // initialize the event loop, use IsOk() to check if we were successful
32     wxConsoleEventLoop();
33     virtual ~wxConsoleEventLoop();
34 
35     // implement base class pure virtuals
36     virtual bool Pending() const wxOVERRIDE;
37     virtual bool Dispatch() wxOVERRIDE;
38     virtual int DispatchTimeout(unsigned long timeout) wxOVERRIDE;
39     virtual void WakeUp() wxOVERRIDE;
IsOk()40     virtual bool IsOk() const wxOVERRIDE { return m_dispatcher != NULL; }
41 
42 protected:
43     virtual void OnNextIteration() wxOVERRIDE;
44     virtual void DoYieldFor(long eventsToProcess) wxOVERRIDE;
45 
46 private:
47     // pipe used for wake up messages: when a child thread wants to wake up
48     // the event loop in the main thread it writes to this pipe
49     wxWakeUpPipeMT *m_wakeupPipe;
50 
51     // the event loop source used to monitor this pipe
52     wxEventLoopSource* m_wakeupSource;
53 
54     // either wxSelectDispatcher or wxEpollDispatcher
55     wxFDIODispatcher *m_dispatcher;
56 
57     wxDECLARE_NO_COPY_CLASS(wxConsoleEventLoop);
58 };
59 
60 #endif // wxUSE_CONSOLE_EVENTLOOP
61 
62 #endif // _WX_UNIX_EVTLOOP_H_
63