nes-proj/platform/avr-raven/apps/raven-webserver/httpd-fs.c

138 lines
4.4 KiB
C

/*
* Copyright (c) 2001, Swedish Institute of Computer Science.
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
* $Id: httpd-fs.c,v 1.4 2009/07/24 15:41:52 dak664 Exp $
*/
#include "contiki-net.h"
#include "httpd.h"
#include "httpd-fs.h"
#include "httpd-fsdata.h"
#include "httpd-fsdata.c"
#if HTTPD_FS_STATISTICS==2
u16_t httpd_filecount[HTTPD_FS_NUMFILES];
#endif /* HTTPD_FS_STATISTICS */
/*-----------------------------------------------------------------------------------*/
void *
httpd_fs_get_root()
{
return (void *)HTTPD_FS_ROOT;
}
/*-----------------------------------------------------------------------------------*/
u16_t
httpd_fs_get_size()
{
return HTTPD_FS_SIZE;
}
/*-----------------------------------------------------------------------------------*/
u16_t
httpd_fs_open(const char *name, struct httpd_fs_file *file)
{
#if HTTPD_FS_STATISTICS
u16_t i = 0;
#endif /* HTTPD_FS_STATISTICS */
struct httpd_fsdata_file_noconst *f,fram;
for(f = (struct httpd_fsdata_file_noconst *)HTTPD_FS_ROOT;
f != NULL;
f = (struct httpd_fsdata_file_noconst *)fram.next) {
/*Get the linked list entry into ram from wherever it is */
httpd_memcpy(&fram,f,sizeof(fram));
/*Compare name passed in RAM with name in whatever flash the file is in */
if(httpd_fs_strcmp((char *)name, fram.name) == 0) {
if (file) {
file->data = fram.data;
file->len = fram.len;
#if HTTPD_FS_STATISTICS==1 //increment count in linked list field if it is in RAM
f->count++;
}
return f->count;
}
++i
#elif HTTPD_FS_STATISTICS==2 //increment count in RAM array when linked list is in flash
++httpd_filecount[i];
}
return httpd_filecount[i];
}
++i;
#else //no file statistics
}
return 1;
}
#endif /*HTTPD_FS_STATISTICS*/
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
void
httpd_fs_init(void)
{
#if HTTPD_FS_STATISTICS && 0 //count will already be zero at boot
u16_t i;
for(i = 0; i < HTTPD_FS_NUMFILES; i++) {
count[i] = 0;
}
#endif /* HTTPD_FS_STATISTICS */
}
/*-----------------------------------------------------------------------------------*/
#if HTTPD_FS_STATISTICS && 0 //Not needed, httpd_fs_open returns count
u16_t
httpd_fs_count(char *name)
{
struct httpd_fsdata_file_noconst *f,fram;
u16_t i;
i = 0;
for(f = (struct httpd_fsdata_file_noconst *)HTTPD_FS_ROOT;
f != NULL;
f = (struct httpd_fsdata_file_noconst *)fram.next) {
httpd_memcpy(&fram,f,sizeof(fram));
if(httpd_strcmp(name, fram.name) == 0) {
#if HTTPD_FS_STATISTICS==1
return f->count;
#elif HTTPD_FS_STATISTICS==2
return count[i];
#endif
}
++i;
}
return 0;
}
#endif /* HTTPD_FS_STATISTICS */
/*-----------------------------------------------------------------------------------*/