event_provider.h

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00001 /*
00002 **  ClanLib SDK
00003 **  Copyright (c) 1997-2011 The ClanLib Team
00004 **
00005 **  This software is provided 'as-is', without any express or implied
00006 **  warranty.  In no event will the authors be held liable for any damages
00007 **  arising from the use of this software.
00008 **
00009 **  Permission is granted to anyone to use this software for any purpose,
00010 **  including commercial applications, and to alter it and redistribute it
00011 **  freely, subject to the following restrictions:
00012 **
00013 **  1. The origin of this software must not be misrepresented; you must not
00014 **     claim that you wrote the original software. If you use this software
00015 **     in a product, an acknowledgment in the product documentation would be
00016 **     appreciated but is not required.
00017 **  2. Altered source versions must be plainly marked as such, and must not be
00018 **     misrepresented as being the original software.
00019 **  3. This notice may not be removed or altered from any source distribution.
00020 **
00021 **  Note: Some of the libraries ClanLib may link to may have additional
00022 **  requirements or restrictions.
00023 **
00024 **  File Author(s):
00025 **
00026 **    Magnus Norddahl
00027 */
00028 
00031 
00032 
00033 #pragma once
00034 
00035 
00036 #include "../api_core.h"
00037 
00041 class CL_API_CORE CL_EventProvider
00042 {
00045 
00046 public:
00047         virtual ~CL_EventProvider() { return; }
00048 
00049 
00053 
00054 public:
00055 #ifdef WIN32
00056         enum EventType
00057         {
00058                 type_native
00059         };
00060 #else
00061         enum EventType
00062         {
00063                 type_fd_read,
00064                 type_fd_write,
00065                 type_fd_exception
00066         };
00067 #endif
00068 
00070         virtual EventType get_event_type(int index) = 0;
00071 
00072 #ifdef WIN32
00073 
00074         virtual HANDLE get_event_handle(int index) = 0;
00075 #else
00076 
00077         virtual int get_event_handle(int index) = 0;
00078 #endif
00079 
00081         virtual int get_num_event_handles() = 0;
00082 
00083 
00087 
00088 public:
00090         virtual bool check_before_wait() { return false; }
00091 
00093         virtual bool check_after_wait(int index) { return true; }
00094 
00096         virtual bool set() { return false; }
00097 
00099         virtual bool reset() { return false; }
00100 
00101 
00105 
00106 private:
00108 };
00109 
00110