edelib 2.0.0

edelib/Listener.h

00001 /*
00002  * $Id: Listener.h 2839 2009-09-28 11:36:20Z karijes $
00003  *
00004  * Descriptor monitoring functions
00005  * Copyright (c) 2008 edelib authors
00006  *
00007  * This library is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2 of the License, or (at your option) any later version.
00011  *
00012  * This library is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public License
00018  * along with this library. If not, see <http://www.gnu.org/licenses/>.
00019  */
00020 
00021 #ifndef __EDELIB_LISTENER_H__
00022 #define __EDELIB_LISTENER_H__
00023 
00024 #include "edelib-global.h"
00025 
00026 EDELIB_NS_BEGIN
00027 
00028 enum {
00029         LISTENER_READ   = 1, 
00030         LISTENER_WRITE  = 4, 
00031         LISTENER_EXCEPT = 8  
00032 };
00033 
00051 EDELIB_API void listener_add_fd(int fd, int when, void(*cb)(int, void*), void* arg = 0);
00052 
00056 EDELIB_API inline void listener_add_fd(int fd, void(*cb)(int, void*), void* arg = 0) {
00057         listener_add_fd(fd, LISTENER_READ, cb, arg);
00058 }
00059 
00066 EDELIB_API void listener_remove_fd(int fd, int when);
00067 
00071 EDELIB_API inline void listener_remove_fd(int fd) { 
00072         listener_remove_fd(fd, LISTENER_READ); 
00073 }
00074 
00087 EDELIB_API double listener_wait(double t);
00088 
00092 EDELIB_API inline int listener_wait(void) { 
00093         // FLTK uses 1e20 for forever so I'm using it too
00094         return (int)listener_wait(1e20); 
00095 }
00096 
00097 EDELIB_NS_END
00098 #endif