2 * Copyright (C) 1994-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.27 1999-02-02 14:50:01 adam
8 * Updated WIN32 code specific sections. Changed header.
10 * Revision 1.26 1998/02/17 10:32:52 adam
11 * Fixed bug: binary files weren't opened with flag b on NT.
13 * Revision 1.25 1997/10/27 14:25:38 adam
16 * Revision 1.24 1997/09/18 08:59:16 adam
17 * Extra generic handle for the character mapping routines.
19 * Revision 1.23 1997/09/17 12:19:06 adam
20 * Zebra version corresponds to YAZ version 1.4.
21 * Changed Zebra server so that it doesn't depend on global common_resource.
23 * Revision 1.22 1997/09/09 13:37:52 adam
24 * Partial port to WIN95/NT.
26 * Revision 1.21 1996/10/29 13:56:13 adam
27 * Include of zebrautl.h instead of alexutil.h.
29 * Revision 1.20 1996/03/26 15:59:04 adam
30 * The directory of the shadow table file can be specified by the new
33 * Revision 1.19 1996/02/05 12:28:58 adam
34 * Removed a LOG_LOG message.
36 * Revision 1.18 1996/01/02 08:59:06 quinn
37 * Changed "commit" setting to "shadow".
39 * Revision 1.17 1995/12/11 09:03:51 adam
40 * New function: cf_unlink.
41 * New member of commit file head: state (0) deleted, (1) hash file.
43 * Revision 1.16 1995/12/08 16:21:13 adam
44 * Work on commit/update.
46 * Revision 1.15 1995/12/01 16:24:28 adam
47 * Commit files use separate meta file area.
49 * Revision 1.14 1995/12/01 11:37:21 adam
50 * Cached/commit files implemented as meta-files.
52 * Revision 1.13 1995/11/30 17:00:49 adam
53 * Several bug fixes. Commit system runs now.
55 * Revision 1.12 1995/11/30 08:33:10 adam
56 * Started work on commit facility.
58 * Revision 1.11 1995/09/04 12:33:21 adam
59 * Various cleanup. YAZ util used instead.
61 * Revision 1.10 1994/08/25 10:15:54 quinn
64 * Revision 1.9 1994/08/24 08:45:48 quinn
67 * Revision 1.8 1994/08/23 15:03:34 quinn
68 * *** empty log message ***
70 * Revision 1.7 1994/08/23 14:25:45 quinn
71 * Added O_CREAT because some geek wanted it. Sheesh.
73 * Revision 1.6 1994/08/23 14:21:38 quinn
76 * Revision 1.5 1994/08/18 08:10:08 quinn
79 * Revision 1.4 1994/08/17 14:27:32 quinn
82 * Revision 1.2 1994/08/17 14:09:32 quinn
83 * Compiles cleanly (still only dummy).
85 * Revision 1.1 1994/08/17 13:55:08 quinn
86 * New blocksystem. dummy only
100 #include <zebrautl.h>
104 struct BFiles_struct {
105 MFile_area commit_area;
106 MFile_area_struct *register_area;
110 BFiles bfs_create (const char *spec)
112 BFiles bfs = xmalloc (sizeof(*bfs));
113 bfs->commit_area = NULL;
114 bfs->register_area = mf_init("register", spec);
119 void bfs_destroy (BFiles bfs)
121 xfree (bfs->lockDir);
122 mf_destroy (bfs->commit_area);
123 mf_destroy (bfs->register_area);
127 static FILE *open_cache (BFiles bfs, const char *flags)
129 char cacheFilename[1024];
132 sprintf (cacheFilename, "%scache",
133 bfs->lockDir ? bfs->lockDir : "");
134 file = fopen (cacheFilename, flags);
138 static void unlink_cache (BFiles bfs)
140 char cacheFilename[1024];
142 sprintf (cacheFilename, "%scache",
143 bfs->lockDir ? bfs->lockDir : "");
144 unlink (cacheFilename);
147 void bf_lockDir (BFiles bfs, const char *lockDir)
151 xfree (bfs->lockDir);
154 len = strlen(lockDir);
155 bfs->lockDir = xmalloc (len+2);
156 strcpy (bfs->lockDir, lockDir);
158 if (len > 0 && bfs->lockDir[len-1] != '/')
159 strcpy (bfs->lockDir + len, "/");
162 void bf_cache (BFiles bfs, const char *spec)
166 if (!bfs->commit_area)
167 bfs->commit_area = mf_init ("shadow", spec);
170 bfs->commit_area = NULL;
173 int bf_close (BFile bf)
182 BFile bf_open (BFiles bfs, const char *name, int block_size, int wflag)
184 BFile tmp = xmalloc(sizeof(BFile_struct));
186 if (bfs->commit_area)
190 tmp->mf = mf_open (bfs->register_area, name, block_size, 0);
191 tmp->cf = cf_open (tmp->mf, bfs->commit_area, name, block_size,
197 outf = open_cache (bfs, "ab");
200 logf (LOG_FATAL|LOG_ERRNO, "open %scache",
201 bfs->lockDir ? bfs->lockDir : "");
204 fprintf (outf, "%s %d\n", name, block_size);
210 tmp->mf = mf_open(bfs->register_area, name, block_size, wflag);
215 logf (LOG_FATAL, "mf_open failed for %s", name);
222 int bf_read (BFile bf, int no, int offset, int num, void *buf)
226 if (bf->cf && (r=cf_read (bf->cf, no, offset, num, buf)) != -1)
228 return mf_read (bf->mf, no, offset, num, buf);
231 int bf_write (BFile bf, int no, int offset, int num, const void *buf)
234 return cf_write (bf->cf, no, offset, num, buf);
235 return mf_write (bf->mf, no, offset, num, buf);
238 int bf_commitExists (BFiles bfs)
242 inf = open_cache (bfs, "rb");
251 void bf_commitExec (BFiles bfs)
260 assert (bfs->commit_area);
261 if (!(inf = open_cache (bfs, "rb")))
263 logf (LOG_LOG, "No commit file");
266 while (fscanf (inf, "%s %d", path, &block_size) == 2)
268 mf = mf_open (bfs->register_area, path, block_size, 1);
269 cf = cf_open (mf, bfs->commit_area, path, block_size, 0, &first_time);
279 void bf_commitClean (BFiles bfs, const char *spec)
289 if (!bfs->commit_area)
291 bf_cache (bfs, spec);
295 if (!(inf = open_cache (bfs, "rb")))
297 while (fscanf (inf, "%s %d", path, &block_size) == 2)
299 mf = mf_open (bfs->register_area, path, block_size, 0);
300 cf = cf_open (mf, bfs->commit_area, path, block_size, 1, &firstTime);