uspace/srv/fs/exfat/exfat_directory.h

   1 /*
   2  * Copyright (c) 2011 Oleg Romanenko
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /** @addtogroup fs
  30  * @{
  31  */
  32
  33 #ifndef EXFAT_EXFAT_DIRECTORY_H_
  34 #define EXFAT_EXFAT_DIRECTORY_H_
  35
  36 #include <stdint.h>
  37 #include "exfat.h"
  38 #include "exfat_fat.h"
  39 #include "exfat_dentry.h"
  40
  41 typedef struct {
  42         /* Directory data */
  43         exfat_bs_t *bs;
  44         exfat_node_t *nodep;
  45         service_id_t service_id;
  46         uint32_t blocks;
  47         uint32_t bnum;
  48         aoff64_t pos;
  49         block_t *b;
  50         bool last;
  51         bool fragmented;
  52         exfat_cluster_t firstc;
  53 } exfat_directory_t;
  54
  55
  56 extern void exfat_directory_init(exfat_directory_t *);
  57 extern errno_t exfat_directory_open(exfat_node_t *, exfat_directory_t *);
  58 extern errno_t exfat_directory_open_parent(exfat_directory_t *, service_id_t,
  59     exfat_cluster_t, bool);
  60 extern errno_t exfat_directory_close(exfat_directory_t *);
  61
  62 extern errno_t exfat_directory_next(exfat_directory_t *);
  63 extern errno_t exfat_directory_prev(exfat_directory_t *);
  64 extern errno_t exfat_directory_seek(exfat_directory_t *, aoff64_t);
  65 extern errno_t exfat_directory_get(exfat_directory_t *, exfat_dentry_t **);
  66 extern errno_t exfat_directory_find(exfat_directory_t *, exfat_dentry_clsf_t,
  67     exfat_dentry_t **);
  68 extern errno_t exfat_directory_find_continue(exfat_directory_t *,
  69     exfat_dentry_clsf_t, exfat_dentry_t **);
  70
  71 extern errno_t exfat_directory_read_file(exfat_directory_t *, char *, size_t,
  72     exfat_file_dentry_t *, exfat_stream_dentry_t *);
  73 extern errno_t exfat_directory_read_vollabel(exfat_directory_t *, char *, size_t);
  74 extern errno_t exfat_directory_sync_file(exfat_directory_t *, exfat_file_dentry_t *,
  75     exfat_stream_dentry_t *);
  76 extern errno_t exfat_directory_write_file(exfat_directory_t *, const char *);
  77 extern errno_t exfat_directory_erase_file(exfat_directory_t *, aoff64_t);
  78
  79
  80 extern errno_t exfat_directory_expand(exfat_directory_t *);
  81 extern errno_t exfat_directory_lookup_free(exfat_directory_t *, size_t);
  82 extern errno_t exfat_directory_print(exfat_directory_t *);
  83
  84
  85 #endif
  86
  87 /**
  88  * @}
  89  */