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/***************************************************************************
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 *             __________               __   ___.
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 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
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 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
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 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
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 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
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 *                     \/            \/     \/    \/            \/
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 * $Id: file.h 28752 2010-12-06 22:26:31Z kugel $
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 *
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 * Copyright (C) 2002 by Björn Stenberg
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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 * KIND, either express or implied.
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 *
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 ****************************************************************************/
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#ifndef _FILE_H_
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#define _FILE_H_
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#include <sys/types.h>
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#include "config.h"
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#include "gcc_extensions.h"
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#include <fcntl.h>
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#ifdef WIN32
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/* this has SEEK_SET et al */
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#include <stdio.h>
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#endif
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#undef MAX_PATH /* this avoids problems when building simulator */
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#define MAX_PATH 260
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#define MAX_OPEN_FILES 11
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typedef int (*open_func)(const char* pathname, int flags, ...);
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typedef ssize_t (*read_func)(int fd, void *buf, size_t count);
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typedef int (*creat_func)(const char *pathname, mode_t mode);
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typedef ssize_t (*write_func)(int fd, const void *buf, size_t count);
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typedef void (*qsort_func)(void *base, size_t nmemb,  size_t size,
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                           int(*_compar)(const void *, const void *));
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/*
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   The function declaration scheme is as follows.
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   - For plugins and codecs, no file access functions are declared since
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     in this case they are accessed via the rb API.
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   - For application build (target or sim), they are declared as macros
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     which expand to app_xxx. I.e. the functions that get declared after
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     the preprocessing are "app_open", "app_remove" etc. These functions
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     are implemented using the host functions "open", "remove" etc.
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   - For non-app simulator builds, they are declared as macros
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     which expand to sim_xxx. I.e. the functions that get declared after
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     the preprocessing are "sim_open", "sim_remove" etc. These functions
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     are implemented using the host functions "open", "remove" etc.
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   - For non-app target builds, they are declared as-is.
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*/
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#if !defined(PLUGIN) && !defined(CODEC)
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#if defined(APPLICATION)
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#   define FN_PREFIX       app_
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#elif defined(SIMULATOR)
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#   define FN_PREFIX       sim_
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#endif /* SIMULATOR */
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/*
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   Define to what the function names should expand
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   (alphabetically ordered for easier matching with declarations below)
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*/
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#ifdef FN_PREFIX
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#define close(x)       FN_PREFIX ## close(x)
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#define creat(x,m)     FN_PREFIX ## creat(x,m)
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#define fdprintf(fd, fmt, ...) FN_PREFIX ## fdprintf(fd, fmt, __VA_ARGS__)
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#define filesize(x)    FN_PREFIX ## filesize(x)
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#define fsync(x)       FN_PREFIX ## fsync(x)
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#define ftruncate(x,y) FN_PREFIX ## ftruncate(x,y)
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#define lseek(x,y,z)   FN_PREFIX ## lseek(x,y,z)
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#define open(x, ...)   FN_PREFIX ## open(x, __VA_ARGS__)
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#define read(x,y,z)    FN_PREFIX ## read(x,y,z)
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#define remove(x)      FN_PREFIX ## remove(x)
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#define rename(x,y)    FN_PREFIX ## rename(x,y)
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#define write(x,y,z)   FN_PREFIX ## write(x,y,z)
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#undef FN_PREFIX
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#endif /* FN_PREFIX */
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#if (CONFIG_PLATFORM & PLATFORM_NATIVE) && !defined(__PCTOOL__)
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/* posix compatibility function */
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static inline int creat(const char *pathname, mode_t mode)
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{
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    (void)mode;
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    return file_creat(pathname);
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}
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#define creat(path, mode) file_creat(path)
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#define open(x, y, ...)   file_open(x,y)
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extern int release_files(int volume);
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#endif /* CONFIG_PLATFORM & PLATFORM_NATIVE) && !__PCTOOL__ */
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/* Function declarations */
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extern int     close(int fd);
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extern int     creat(const char *pathname, mode_t mode);
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extern off_t   filesize(int fd);
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extern int     fdprintf (int fd, const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);
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extern int     fsync(int fd);
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extern int     ftruncate(int fd, off_t length);
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extern off_t   lseek(int fildes, off_t offset, int whence);
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extern int     open(const char* pathname, int flags, ...);
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extern ssize_t read(int fd, void *buf, size_t count);
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extern int     remove(const char* pathname);
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extern int     rename(const char* path, const char* newname);
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extern ssize_t write(int fd, const void *buf, size_t count);
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#endif /* !PLUGIN && !CODEC */
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#endif /* _FILE_H_ */