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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/private/fdiohandler.h | |
3 | // Purpose: declares wxFDIOHandler class | |
4 | // Author: Vadim Zeitlin | |
5 | // Created: 2009-08-17 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org> | |
8 | // Licence: wxWindows licence | |
9 | /////////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | #ifndef _WX_PRIVATE_FDIOHANDLER_H_ | |
12 | #define _WX_PRIVATE_FDIOHANDLER_H_ | |
13 | ||
14 | // ---------------------------------------------------------------------------- | |
15 | // wxFDIOHandler: interface used to process events on file descriptors | |
16 | // ---------------------------------------------------------------------------- | |
17 | ||
18 | class wxFDIOHandler | |
19 | { | |
20 | public: | |
21 | wxFDIOHandler() { m_regmask = 0; } | |
22 | ||
23 | // called when descriptor is available for non-blocking read | |
24 | virtual void OnReadWaiting() = 0; | |
25 | ||
26 | // called when descriptor is available for non-blocking write | |
27 | virtual void OnWriteWaiting() = 0; | |
28 | ||
29 | // called when there is exception on descriptor | |
30 | virtual void OnExceptionWaiting() = 0; | |
31 | ||
32 | // called to check if the handler is still valid, only used by | |
33 | // wxSocketImplUnix currently | |
34 | virtual bool IsOk() const { return true; } | |
35 | ||
36 | ||
37 | // get/set the mask of events for which we're currently registered for: | |
38 | // it's a combination of wxFDIO_{INPUT,OUTPUT,EXCEPTION} | |
39 | int GetRegisteredEvents() const { return m_regmask; } | |
40 | void SetRegisteredEvent(int flag) { m_regmask |= flag; } | |
41 | void ClearRegisteredEvent(int flag) { m_regmask &= ~flag; } | |
42 | ||
43 | ||
44 | // virtual dtor for the base class | |
45 | virtual ~wxFDIOHandler() { } | |
46 | ||
47 | private: | |
48 | int m_regmask; | |
49 | ||
50 | wxDECLARE_NO_COPY_CLASS(wxFDIOHandler); | |
51 | }; | |
52 | ||
53 | #endif // _WX_PRIVATE_FDIOHANDLER_H_ | |
54 |