/**
 * \addtogroup httpd
 * @{
 */

/**
 * \file
 * HTTP server header file.
 * \author Adam Dunkels <adam@dunkels.com>
 */

/*
 * Copyright (c) 2001, Adam Dunkels.
 * All rights reserved. 
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.  
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
 *
 * This file is part of the uIP TCP/IP stack.
 *
 * $Id: httpd.h,v 1.4.2.3 2003/10/06 22:56:44 adam Exp $
 *
 */

#ifndef __HTTPD_H__
#define __HTTPD_H__

typedef enum
{
	TRANSFER_START,
	TRANSFER_CONTINUE,
	TRANSFER_END
} STREAM_TRANSFER_STATE;

typedef enum
{
	NEXT_STREAM_DATA,
	STOP_STREAM_DATA
} STREAM_TRANSFER_STATUS;

typedef enum
{
	STREAM_UPGRADE_OK,
	STREAM_UPGRADE_ERR
} STREAM_UPGRADE_STATUS;

void httpd_appcall(void);

/* UIP_APPCALL: the name of the application function. This function
 must return void and take no arguments (i.e., C type "void
 appfunc(void)"). */
#ifndef UIP_APPCALL
#define UIP_APPCALL		httpd_appcall
#endif

struct httpd_state {
	unsigned long state;
	unsigned long count;
	u8_t *dataptr;
	unsigned long upload;
	unsigned long upload_total;
};

/* UIP_APPSTATE_SIZE: The size of the application-specific state
 stored in the uip_conn structure. */
#ifndef UIP_APPSTATE_SIZE
#define UIP_APPSTATE_SIZE (sizeof(struct httpd_state))
#endif

//#define FS_STATISTICS 1

extern struct httpd_state *hs;

extern STREAM_TRANSFER_STATUS (*handle_data_stream)(char *data_stream_ptr, unsigned int len, STREAM_TRANSFER_STATE state);
extern STREAM_UPGRADE_STATUS (*get_stream_upgrade_status)(void);

#endif /* __HTTPD_H__ */
