mdw@git.distorted.org.uk Git - disorder/blob - server/trackdb.h

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2005, 2006 Richard Kettlewell
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20
  21 #ifndef TRACKDB_H
  22 #define TRACKDB_H
  23
  24 struct ev_source;
  25
  26 extern const struct cache_type cache_files_type;
  27 extern unsigned long cache_files_hits, cache_files_misses;
  28 /* Cache entry type and tracking for regexp-based lookups */
  29
  30 void trackdb_init(int recover);
  31 #define TRACKDB_NO_RECOVER 0
  32 #define TRACKDB_NORMAL_RECOVER 1
  33 #define TRACKDB_FATAL_RECOVER 2
  34 void trackdb_deinit(void);
  35 /* close/close environment */
  36
  37 void trackdb_master(struct ev_source *ev);
  38 /* start deadlock manager */
  39
  40 void trackdb_open(void);
  41 void trackdb_close(void);
  42 /* open/close track databases */
  43
  44 char **trackdb_stats(int *nstatsp);
  45 /* return a list of database stats */
  46
  47 int trackdb_set(const char *track,
  48                 const char *name,
  49                 const char *value);
  50 /* set a pref (remove if value=0).  Return 0 t */
  51
  52 const char *trackdb_get(const char *track,
  53                         const char *name);
  54 /* get a pref */
  55
  56 struct kvp *trackdb_get_all(const char *track);
  57 /* get all prefs */
  58
  59 const char *trackdb_resolve(const char *track);
  60 /* resolve alias - returns a null pointer if not found */
  61
  62 int trackdb_isalias(const char *track);
  63 /* return true if TRACK is an alias */
  64
  65 int trackdb_exists(const char *track);
  66 /* test whether a track exists (perhaps an alias) */
  67
  68 const char *trackdb_random(int tries);
  69 /* Pick a random non-alias track, making at most TRIES attempts.  Returns a
  70  * null pointer on failure. */
  71
  72 char **trackdb_alltags(void);
  73 /* Return the list of all tags */
  74
  75 const char *trackdb_getpart(const char *track,
  76                             const char *context,
  77                             const char *part);
  78 /* get a track name part, like trackname_part(), but taking the database into
  79  * account. */
  80
  81 const char *trackdb_rawpath(const char *track);
  82 /* get the raw path name for TRACK (might be an alias); returns a null pointer
  83  * if not found. */
  84
  85 enum trackdb_listable {
  86   trackdb_files = 1,
  87   trackdb_directories = 2
  88 };
  89
  90 char **trackdb_list(const char *dir, int *np, enum trackdb_listable what,
  91                     const pcre *rec);
  92 /* Return the directories and/or files below DIR.  If DIR is a null pointer
  93  * then concatenate the listing of all collections.
  94  *
  95  * If REC is not a null pointer then only names where the basename matches the
  96  * regexp are returned.
  97  */
  98
  99 char **trackdb_search(char **wordlist, int nwordlist, int *ntracks);
 100 /* return a list of tracks containing all of the words given.  If you
 101  * ask for only stopwords you get no tracks. */
 102
 103 void trackdb_rescan(struct ev_source *ev);
 104 /* Start a rescan, if one is not running already */
 105
 106 int trackdb_rescan_cancel(void);
 107 /* interrupt any running rescan.  Return 1 if one was running, else 0. */
 108
 109 void trackdb_gc(void);
 110 /* tidy up old database log files */
 111
 112 void trackdb_set_global(const char *name,
 113                         const char *value,
 114                         const char *who);
 115 /* set a global pref (remove if value=0). */
 116
 117 const char *trackdb_get_global(const char *name);
 118 /* get a global pref */
 119
 120 #endif /* TRACKDB_H */
 121
 122 /*
 123 Local Variables:
 124 c-basic-offset:2
 125 comment-column:40
 126 fill-column:79
 127 indent-tabs-mode:nil
 128 End:
 129 */
 130 /* arch-tag:Y8z+2jDRros3Nz67LFBlzA */