forked from len0rd/rockbox
af7aaae478
Only integer IDs are exposed from dircache with this. This way the cache is isolated from other modules. This is needed for my buflib gsoc project. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30038 a1c6a512-1295-4272-9138-f99709370657
100 lines
2.8 KiB
C
100 lines
2.8 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) 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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#include "config.h"
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#include "dir.h"
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#include "stdlib.h"
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#include "string.h"
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#include "debug.h"
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#include "file.h"
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#include "filefuncs.h"
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#ifndef __PCTOOL__
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#ifdef HAVE_MULTIVOLUME
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/* returns on which volume this is, and copies the reduced name
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(sortof a preprocessor for volume-decorated pathnames) */
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int strip_volume(const char* name, char* namecopy)
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{
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int volume = 0;
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const char *temp = name;
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while (*temp == '/') /* skip all leading slashes */
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++temp;
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if (*temp && !strncmp(temp, VOL_NAMES, VOL_ENUM_POS))
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{
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temp += VOL_ENUM_POS; /* behind special name */
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volume = atoi(temp); /* number is following */
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temp = strchr(temp, '/'); /* search for slash behind */
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if (temp != NULL)
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name = temp; /* use the part behind the volume */
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else
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name = "/"; /* else this must be the root dir */
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}
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strlcpy(namecopy, name, MAX_PATH);
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return volume;
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}
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#endif /* #ifdef HAVE_MULTIVOLUME */
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/* Test file existence, using dircache of possible */
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bool file_exists(const char *file)
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{
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int fd;
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#ifdef DEBUG
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if (!file || !*file)
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{
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DEBUGF("%s(%p): Invalid parameter!\n", __func__, file);
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return false;
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}
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#endif
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#ifdef HAVE_DIRCACHE
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if (dircache_is_enabled())
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return (dircache_get_entry_id(file) >= 0);
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#endif
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fd = open(file, O_RDONLY);
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if (fd < 0)
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return false;
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close(fd);
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return true;
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}
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bool dir_exists(const char *path)
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{
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DIR* d = opendir(path);
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if (!d)
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return false;
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closedir(d);
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return true;
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}
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#endif /* __PCTOOL__ */
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#if (CONFIG_PLATFORM & (PLATFORM_NATIVE|PLATFORM_SDL|PLATFORM_MAEMO|PLATFORM_PANDORA))
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struct dirinfo dir_get_info(DIR* parent, struct dirent *entry)
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{
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(void)parent;
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return entry->info;
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}
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#endif
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