Demo/WizNET_DEMO_GCC_ARM7/HTTP_Serv.c

/*
	FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.

	This file is part of the FreeRTOS distribution.

	FreeRTOS is free software; you can redistribute it and/or modify it	under 
	the terms of the GNU General Public License (version 2) as published by the 
	Free Software Foundation and modified by the FreeRTOS exception.
	**NOTE** The exception to the GPL is included to allow you to distribute a
	combined work that includes FreeRTOS without being obliged to provide the 
	source code for proprietary components outside of the FreeRTOS kernel.  
	Alternative commercial license and support terms are also available upon 
	request.  See the licensing section of http://www.FreeRTOS.org for full 
	license details.

	FreeRTOS 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 FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
	Temple Place, Suite 330, Boston, MA  02111-1307  USA.


	***************************************************************************
	*                                                                         *
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	* See http://www.FreeRTOS.org/Documentation for details                   *
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	***************************************************************************

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	Please ensure to read the configuration and relevant port sections of the
	online documentation.

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*/


/* Standard includes. */
#include <stdlib.h>

/* Scheduler include files. */
#include "FreeRTOS.h"
#include "task.h"

/* Application includes. */
#include "tcp.h"

/* Misc constants. */
#define tcpPOLL_DELAY					( ( portTickType ) 12 / portTICK_RATE_MS )
#define tcpCONNECTION_DELAY				( ( portTickType ) 8 / portTICK_RATE_MS )
/*-----------------------------------------------------------*/

/*
 * This task initialises the hardware then processes one TCP connection at a
 * time.  When an HTTP client connects we just simply send a single page then
 * disconnect - reset the socket data and wait for the next connection.
 */
void vHTTPServerTask( void *pvParameters )
{
	/* Reset the network hardware. */
	vTCPHardReset();

	/* Loop, processing connections are they arrive. */
	for( ;; )
	{
		/* Initialise the TCP interface.

		The current minimal implementation does not check for buffer overflows
		in the WIZnet hardware, so simply resets all the buffers for each
		connection - and only processes one connection at a time. */
		if( lTCPSoftReset() )
		{	  
			/* Create the socket that is going to accept incoming connections. */
			if( lTCPCreateSocket() )
			{
				/* Wait for a connection. */
				vTCPListen();

				/* Process connections as they arrive.  This function will only
				return once the connection has been closed. */
				lProcessConnection();
			}
		}

		/* If we get here then the connection completed or failed.  Wait a 
		while then try or start again. */
		vTaskDelay( tcpCONNECTION_DELAY );		
	}
}