portevent.cpp

00001 /*
00002  * FreeModbus Libary: BARE Port
00003  * Copyright (C) 2006 Christian Walter <wolti@sil.at>
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Lesser General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2.1 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Lesser General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Lesser General Public
00016  * License along with this library; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  *
00019  * File: $Id: portevent.c,v 1.1 2006/08/22 21:35:13 wolti Exp $
00020  */
00021 
00022 /* ----------------------- Modbus includes ----------------------------------*/
00023 #include "mb.h"
00024 #include "mbport.h"
00025 
00026 /* ----------------------- Variables ----------------------------------------*/
00027 static eMBEventType eQueuedEvent;
00028 static BOOL         xEventInQueue;
00029 
00030 /* ----------------------- Start implementation -----------------------------*/
00031 BOOL
00032 xMBPortEventInit( void )
00033 {
00034     xEventInQueue = FALSE;
00035     return TRUE;
00036 }
00037 
00038 BOOL
00039 xMBPortEventPost( eMBEventType eEvent )
00040 {
00041     xEventInQueue = TRUE;
00042     eQueuedEvent = eEvent;
00043     return TRUE;
00044 }
00045 
00046 BOOL
00047 xMBPortEventGet( eMBEventType * eEvent )
00048 {
00049     BOOL    xEventHappened = FALSE;
00050 
00051     if( xEventInQueue )
00052     {
00053         *eEvent = eQueuedEvent;
00054         xEventInQueue = FALSE;
00055         xEventHappened = TRUE;
00056     }
00057     return xEventHappened;
00058 }