| /* |
| * Copyright (c) 2001-2003 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. 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 lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| #ifndef __FS_H__ |
| #define __FS_H__ |
| |
| #include "lwip/opt.h" |
| |
| /** Set this to 1 and provide the functions: |
| * - "int fs_open_custom(struct fs_file *file, const char *name)" |
| * Called first for every opened file to allow opening files |
| * that are not included in fsdata(_custom).c |
| * - "void fs_close_custom(struct fs_file *file)" |
| * Called to free resources allocated by fs_open_custom(). |
| */ |
| #ifndef LWIP_HTTPD_CUSTOM_FILES |
| #define LWIP_HTTPD_CUSTOM_FILES 0 |
| #endif |
| |
| /** Set this to 1 to include an application state argument per file |
| * that is opened. This allows to keep a state per connection/file. |
| */ |
| #ifndef LWIP_HTTPD_FILE_STATE |
| #define LWIP_HTTPD_FILE_STATE 0 |
| #endif |
| |
| /** HTTPD_PRECALCULATED_CHECKSUM==1: include precompiled checksums for |
| * predefined (MSS-sized) chunks of the files to prevent having to calculate |
| * the checksums at runtime. */ |
| #ifndef HTTPD_PRECALCULATED_CHECKSUM |
| #define HTTPD_PRECALCULATED_CHECKSUM 0 |
| #endif |
| |
| #if HTTPD_PRECALCULATED_CHECKSUM |
| struct fsdata_chksum { |
| u32_t offset; |
| u16_t chksum; |
| u16_t len; |
| }; |
| #endif /* HTTPD_PRECALCULATED_CHECKSUM */ |
| |
| struct fs_file { |
| const char *data; |
| int len; |
| int index; |
| void *pextension; |
| #if HTTPD_PRECALCULATED_CHECKSUM |
| const struct fsdata_chksum *chksum; |
| u16_t chksum_count; |
| #endif /* HTTPD_PRECALCULATED_CHECKSUM */ |
| u8_t http_header_included; |
| #if LWIP_HTTPD_CUSTOM_FILES |
| u8_t is_custom_file; |
| #endif /* LWIP_HTTPD_CUSTOM_FILES */ |
| #if LWIP_HTTPD_FILE_STATE |
| void *state; |
| #endif /* LWIP_HTTPD_FILE_STATE */ |
| }; |
| |
| struct fs_file *fs_open(const char *name); |
| void fs_close(struct fs_file *file); |
| int fs_read(struct fs_file *file, char *buffer, int count); |
| int fs_bytes_left(struct fs_file *file); |
| |
| #if LWIP_HTTPD_FILE_STATE |
| /** This user-defined function is called when a file is opened. */ |
| void *fs_state_init(struct fs_file *file, const char *name); |
| /** This user-defined function is called when a file is closed. */ |
| void fs_state_free(struct fs_file *file, void *state); |
| #endif /* #if LWIP_HTTPD_FILE_STATE */ |
| |
| #endif /* __FS_H__ */ |