root/htags/cache.c(234.html)

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DEFINITIONS

This source file includes following definitions.
  1. cache_open
  2. cache_put
  3. cache_get
  4. cache_close

/*
 * Copyright (c) 2004, 2005 Tama Communications Corporation
 *
 * This file is part of GNU GLOBAL.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifdef HAVE_CONFIG_H #include <config.h> #endif #include <stdio.h> #ifdef HAVE_STRING_H #include <string.h> #else #include <strings.h> #endif #include <errno.h> #include "global.h" #include "assoc.h" #include "htags.h" #include "cache.h" static ASSOC *assoc[GTAGLIM]; /* * Cache file is used for duplicate object entry. * * If function 'func()' is defined more than once then the cache record * of GTAGS has (1) the frequency and the name of duplicate object entry file, * else it has (2) the tag definition. * It can be distinguished the first character of the cache record. * If it is a blank then it is the former else the latter. * * (1) The frequency and the id of duplicate object entry file (=fid). * +----------------------+ * |' '<fid>' '<frequency>| * +----------------------+ * The duplicate object entry file can be referred to as 'D/<fid>.html'. * * (2) The tag definition. * +---------------------------+ * |<line number>' '<file name>| * +---------------------------+ * The tag entry is referred to as 'S/<fid>.html#<line number>'. * The <fid> can be calculated by path2fid(<file name>). */
/* * cache_open: open cache file. */
void cache_open(void) { assoc[GTAGS] = assoc_open('d'); assoc[GRTAGS] = assoc_open('r'); assoc[GSYMS] = symbol ? assoc_open('y') : NULL; } /* * cache_put: put tag line. * * i) db db type * i) tag tag name * i) line tag line */
void cache_put(int db, const char *tag, const char *line) { if (db >= GTAGLIM) die("I don't know such tag file."); assoc_put(assoc[db], tag, line); } /* * cache_get: get tag line. * * i) db db type * i) tag tag name * r) tag line */
const char * cache_get(int db, const char *tag) { if (db >= GTAGLIM) die("I don't know such tag file."); return assoc_get(assoc[db], tag); } /* * cache_close: close cache file. */
void cache_close(void) { int i; for (i = GTAGS; i < GTAGLIM; i++) { if (assoc[i]) { assoc_close(assoc[i]); assoc[i] = NULL; } } }

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