/*** $Id: listenfd.c,v 1.6 2003/09/04 03:46:47 weiym Exp $**** listen.c: routines for listen fd.**** Copyright (C) 2003 Feynman Software.** Copyright (C) 2001 ~ 2002 Wei Yongming.**** Current maintainer: Wei Yongming.**** Create date: 2001/03/28*//*** This program is free software; you can redistribute it and/or modify** it under the terms of the GNU General Public License as published by** the Free Software Foundation; either version 2 of the License, or** (at your option) any later version.**** This program is distributed in the hope that it will be useful,** but WITHOUT ANY WARRANTY; without even the implied warranty of** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the** GNU General Public License for more details.**** You should have received a copy of the GNU General Public License** along with this program; if not, write to the Free Software** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*//*** TODO:*/ #include <stdio.h>#include <string.h>#include <sys/poll.h>#include "common.h"#include "minigui.h"#include "ourhdr.h"LISTEN_FD mg_listen_fds [MAX_NR_LISTEN_FD];static fd_set _wfdset, _efdset;fd_set mg_rfdset;fd_set* mg_wfdset = NULL;fd_set* mg_efdset = NULL;int mg_maxfd;/* Register/Unregister a listen fd to MiniGUI. * When there is a read event on this fd, MiniGUI * will post a MSG_FDEVENT message with wParam being equal to * MAKELONG (fd, type) to target window. *//* Return TRUE if all OK, and FALSE on error. */BOOL GUIAPI RegisterListenFD (int fd, int type, HWND hwnd, void* context){    int i = 0;    for (i = 0; i < MAX_NR_LISTEN_FD; i++) {        if (mg_listen_fds [i].fd == 0) {            mg_listen_fds [i].fd = fd;            mg_listen_fds [i].hwnd = hwnd;            mg_listen_fds [i].type = type;            mg_listen_fds [i].context = context;            switch (type) {            case POLLIN:                FD_SET (fd, &mg_rfdset);                break;            case POLLOUT:                if (mg_wfdset == NULL) {                    mg_wfdset = &_wfdset;                    FD_ZERO (mg_wfdset);                }                FD_SET (fd, mg_wfdset);                break;            case POLLERR:                if (mg_efdset == NULL) {                    mg_efdset = &_efdset;                    FD_ZERO (mg_efdset);                }                FD_SET (fd, mg_efdset);                break;            }            if (mg_maxfd < fd)                mg_maxfd = fd;            return TRUE;        }    }    return FALSE;}/* Return TRUE if all OK, and FALSE on error. */BOOL GUIAPI UnregisterListenFD (int fd){    int i = 0;    for (i = 0; i < MAX_NR_LISTEN_FD; i++) {        if (mg_listen_fds [i].fd == fd) {            mg_listen_fds [i].fd = 0;            switch (mg_listen_fds [i].type) {            case POLLIN:                FD_CLR (fd, &mg_rfdset);                break;            case POLLOUT:                if (mg_wfdset == NULL)                    return FALSE;                FD_CLR (fd, mg_wfdset);                break;            case POLLERR:                if (mg_efdset == NULL)                    return FALSE;                FD_CLR (fd, mg_efdset);                break;            }            return TRUE;        }    }    return FALSE;}