/*
- * Copyright (C) 1994, Index Data I/S
+ * Copyright (C) 1994-1999, Index Data
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: bfile.c,v $
- * Revision 1.13 1995-11-30 17:00:49 adam
+ * Revision 1.27 1999-02-02 14:50:01 adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.26 1998/02/17 10:32:52 adam
+ * Fixed bug: binary files weren't opened with flag b on NT.
+ *
+ * Revision 1.25 1997/10/27 14:25:38 adam
+ * Fixed memory leaks.
+ *
+ * Revision 1.24 1997/09/18 08:59:16 adam
+ * Extra generic handle for the character mapping routines.
+ *
+ * Revision 1.23 1997/09/17 12:19:06 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.22 1997/09/09 13:37:52 adam
+ * Partial port to WIN95/NT.
+ *
+ * Revision 1.21 1996/10/29 13:56:13 adam
+ * Include of zebrautl.h instead of alexutil.h.
+ *
+ * Revision 1.20 1996/03/26 15:59:04 adam
+ * The directory of the shadow table file can be specified by the new
+ * bf_lockDir call.
+ *
+ * Revision 1.19 1996/02/05 12:28:58 adam
+ * Removed a LOG_LOG message.
+ *
+ * Revision 1.18 1996/01/02 08:59:06 quinn
+ * Changed "commit" setting to "shadow".
+ *
+ * Revision 1.17 1995/12/11 09:03:51 adam
+ * New function: cf_unlink.
+ * New member of commit file head: state (0) deleted, (1) hash file.
+ *
+ * Revision 1.16 1995/12/08 16:21:13 adam
+ * Work on commit/update.
+ *
+ * Revision 1.15 1995/12/01 16:24:28 adam
+ * Commit files use separate meta file area.
+ *
+ * Revision 1.14 1995/12/01 11:37:21 adam
+ * Cached/commit files implemented as meta-files.
+ *
+ * Revision 1.13 1995/11/30 17:00:49 adam
* Several bug fixes. Commit system runs now.
*
* Revision 1.12 1995/11/30 08:33:10 adam
*/
#include <stdio.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <unistd.h>
#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#ifdef WIN32
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
-#include <alexutil.h>
+#include <zebrautl.h>
#include <bfile.h>
#include "cfile.h"
-static const char *cache_name = NULL;
+struct BFiles_struct {
+ MFile_area commit_area;
+ MFile_area_struct *register_area;
+ char *lockDir;
+};
+
+BFiles bfs_create (const char *spec)
+{
+ BFiles bfs = xmalloc (sizeof(*bfs));
+ bfs->commit_area = NULL;
+ bfs->register_area = mf_init("register", spec);
+ bfs->lockDir = NULL;
+ return bfs;
+}
+
+void bfs_destroy (BFiles bfs)
+{
+ xfree (bfs->lockDir);
+ mf_destroy (bfs->commit_area);
+ mf_destroy (bfs->register_area);
+ xfree (bfs);
+}
+
+static FILE *open_cache (BFiles bfs, const char *flags)
+{
+ char cacheFilename[1024];
+ FILE *file;
+
+ sprintf (cacheFilename, "%scache",
+ bfs->lockDir ? bfs->lockDir : "");
+ file = fopen (cacheFilename, flags);
+ return file;
+}
+
+static void unlink_cache (BFiles bfs)
+{
+ char cacheFilename[1024];
+
+ sprintf (cacheFilename, "%scache",
+ bfs->lockDir ? bfs->lockDir : "");
+ unlink (cacheFilename);
+}
+
+void bf_lockDir (BFiles bfs, const char *lockDir)
+{
+ size_t len;
+
+ xfree (bfs->lockDir);
+ if (lockDir == NULL)
+ lockDir = "";
+ len = strlen(lockDir);
+ bfs->lockDir = xmalloc (len+2);
+ strcpy (bfs->lockDir, lockDir);
+
+ if (len > 0 && bfs->lockDir[len-1] != '/')
+ strcpy (bfs->lockDir + len, "/");
+}
-void bf_cache (const char *name)
+void bf_cache (BFiles bfs, const char *spec)
{
- cache_name = name;
+ if (spec)
+ {
+ if (!bfs->commit_area)
+ bfs->commit_area = mf_init ("shadow", spec);
+ }
+ else
+ bfs->commit_area = NULL;
}
int bf_close (BFile bf)
return 0;
}
-BFile bf_open (const char *name, int block_size, int wflag)
+BFile bf_open (BFiles bfs, const char *name, int block_size, int wflag)
{
BFile tmp = xmalloc(sizeof(BFile_struct));
- if (cache_name)
+ if (bfs->commit_area)
{
- FILE *outf;
int first_time;
- logf (LOG_LOG, "cf,mf_open %s, cache_name=%s", name, cache_name);
- tmp->mf = mf_open(0, name, block_size, 0);
- tmp->cf = cf_open(tmp->mf, cache_name, name, block_size, wflag,
- &first_time);
-
+ tmp->mf = mf_open (bfs->register_area, name, block_size, 0);
+ tmp->cf = cf_open (tmp->mf, bfs->commit_area, name, block_size,
+ wflag, &first_time);
if (first_time)
{
- outf = fopen (cache_name, "a");
+ FILE *outf;
+
+ outf = open_cache (bfs, "ab");
+ if (!outf)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "open %scache",
+ bfs->lockDir ? bfs->lockDir : "");
+ exit (1);
+ }
fprintf (outf, "%s %d\n", name, block_size);
fclose (outf);
}
}
else
{
- tmp->mf = mf_open(0, name, block_size, wflag);
+ tmp->mf = mf_open(bfs->register_area, name, block_size, wflag);
tmp->cf = NULL;
}
if (!tmp->mf)
return mf_write (bf->mf, no, offset, num, buf);
}
-void bf_commit (const char *name)
+int bf_commitExists (BFiles bfs)
+{
+ FILE *inf;
+
+ inf = open_cache (bfs, "rb");
+ if (inf)
+ {
+ fclose (inf);
+ return 1;
+ }
+ return 0;
+}
+
+void bf_commitExec (BFiles bfs)
{
FILE *inf;
int block_size;
CFile cf;
int first_time;
- if (!(inf = fopen (name, "r")))
+ assert (bfs->commit_area);
+ if (!(inf = open_cache (bfs, "rb")))
{
- logf (LOG_FATAL|LOG_ERRNO, "cannot open commit %s", name);
- exit (1);
+ logf (LOG_LOG, "No commit file");
+ return ;
}
while (fscanf (inf, "%s %d", path, &block_size) == 2)
{
- mf = mf_open(0, path, block_size, 1);
- cf = cf_open(mf, name, path, block_size, 0, &first_time);
+ mf = mf_open (bfs->register_area, path, block_size, 1);
+ cf = cf_open (mf, bfs->commit_area, path, block_size, 0, &first_time);
cf_commit (cf);
}
fclose (inf);
}
+
+void bf_commitClean (BFiles bfs, const char *spec)
+{
+ FILE *inf;
+ int block_size;
+ char path[256];
+ MFile mf;
+ CFile cf;
+ int mustDisable = 0;
+ int firstTime;
+
+ if (!bfs->commit_area)
+ {
+ bf_cache (bfs, spec);
+ mustDisable = 1;
+ }
+
+ if (!(inf = open_cache (bfs, "rb")))
+ return ;
+ while (fscanf (inf, "%s %d", path, &block_size) == 2)
+ {
+ mf = mf_open (bfs->register_area, path, block_size, 0);
+ cf = cf_open (mf, bfs->commit_area, path, block_size, 1, &firstTime);
+ cf_unlink (cf);
+ cf_close (cf);
+ mf_close (mf);
+ }
+ fclose (inf);
+ unlink_cache (bfs);
+ if (mustDisable)
+ bf_cache (bfs, 0);
+}
projects / idzebra-moved-to-github.git / blobdiff