7e14b935df
Also add two dircache function, one of which does what dircache_disable() did previously as this now also frees the dircache buffer. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30393 a1c6a512-1295-4272-9138-f99709370657
104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
/***************************************************************************
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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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* $Id$
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*
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* Copyright (C) 2005 by Miika Pekkarinen
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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 _DIRCACHE_H
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#define _DIRCACHE_H
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#include "config.h"
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#include "dir_uncached.h"
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#include <string.h> /* size_t */
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#ifdef HAVE_DIRCACHE
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#define DIRCACHE_RESERVE (1024*64)
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#define DIRCACHE_LIMIT (1024*1024*6)
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#define DIRCACHE_APPFLAG_TAGCACHE 0x0001
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#define DIRCACHE_APPFLAG_PLAYLIST 0x0002
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/* Internal structures. */
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struct travel_data {
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struct dircache_entry *first;
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struct dircache_entry *ce;
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struct dircache_entry *down_entry;
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#if (CONFIG_PLATFORM & PLATFORM_HOSTED)
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DIR_UNCACHED *dir, *newdir;
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struct dirent_uncached *entry;
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#else
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struct fat_dir *dir;
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struct fat_dir newdir;
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struct fat_direntry entry;
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#endif
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int pathpos;
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};
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struct dirent_cached {
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struct dirinfo info;
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char *d_name;
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long startcluster;
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};
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typedef struct {
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bool busy;
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struct dirent_cached theent; /* .attribute is set to -1 on init(opendir) */
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int internal_entry; /* the current entry in the directory */
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DIR_UNCACHED *regulardir;
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} DIR_CACHED;
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void dircache_init(void) INIT_ATTR;
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int dircache_load(void);
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int dircache_save(void);
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int dircache_build(int last_size);
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void* dircache_steal_buffer(size_t *size);
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bool dircache_is_enabled(void);
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bool dircache_is_initializing(void);
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void dircache_set_appflag(long mask);
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bool dircache_get_appflag(long mask);
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int dircache_get_entry_count(void);
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int dircache_get_cache_size(void);
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int dircache_get_reserve_used(void);
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int dircache_get_build_ticks(void);
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void dircache_disable(void);
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void dircache_suspend(void);
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bool dircache_resume(void);
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int dircache_get_entry_id(const char *filename);
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size_t dircache_copy_path(int index, char *buf, size_t size);
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/* the next two are internal for file.c */
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long _dircache_get_entry_startcluster(int id);
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struct dirinfo* _dircache_get_entry_dirinfo(int id);
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void dircache_bind(int fd, const char *path);
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void dircache_update_filesize(int fd, long newsize, long startcluster);
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void dircache_update_filetime(int fd);
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void dircache_mkdir(const char *path);
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void dircache_rmdir(const char *path);
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void dircache_remove(const char *name);
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void dircache_rename(const char *oldpath, const char *newpath);
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void dircache_add_file(const char *path, long startcluster);
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DIR_CACHED* opendir_cached(const char* name);
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struct dirent_cached* readdir_cached(DIR_CACHED* dir);
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int closedir_cached(DIR_CACHED *dir);
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int mkdir_cached(const char *name);
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int rmdir_cached(const char* name);
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#endif /* !HAVE_DIRCACHE */
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#endif
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