http_serv.c

FREERTOS的3.2.4版,关键是这个包里面含有FreeRTOS的官方网站的镜像,内含FreeRTOS的完全文档和好多种CPU的移植成果.

/*
	FreeRTOS V3.2.4 - copyright (C) 2003-2005 Richard Barry.

	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 as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	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

	A special exception to the GPL can be applied should you wish to distribute
	a combined work that includes FreeRTOS, without being obliged to provide
	the source code for any proprietary components.  See the licensing section 
	of http://www.FreeRTOS.org for full details of how and when the exception
	can be applied.

	***************************************************************************
	See http://www.FreeRTOS.org for documentation, latest information, license 
	and contact details.  Please ensure to read the configuration and relevant 
	port sections of the online documentation.
	***************************************************************************
*/


/* 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 );		
	}
}