Compact use/set bytes used in search service.

[idzebra-moved-to-github.git] / index / zserver.c

diff --git a/index/zserver.c b/index/zserver.c
index f9f5823..b6b3d00 100644 (file)
--- a/index/zserver.c
+++ b/index/zserver.c
@@ -4,7 +4,26 @@
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: zserver.c,v $
- * Revision 1.32  1995-12-11 09:12:58  adam
+ * Revision 1.37  1996-05-14 06:16:48  adam
+ * Compact use/set bytes used in search service.
+ *
+ * Revision 1.36  1996/05/01 13:46:37  adam
+ * First work on multiple records in one file.
+ * New option, -offset, to the "unread" command in the filter module.
+ *
+ * Revision 1.35  1996/03/26  16:01:14  adam
+ * New setting lockPath: directory of various lock files.
+ *
+ * Revision 1.34  1996/03/20  09:36:46  adam
+ * Function dict_lookup_grep got extra parameter, init_pos, which marks
+ * from which position in pattern approximate pattern matching should occur.
+ * Approximate pattern matching is used in relevance=re-2.
+ *
+ * Revision 1.33  1996/01/17  14:57:56  adam
+ * Prototype changed for reader functions in extract/retrieve. File
+ *  is identified by 'void *' instead of 'int.
+ *
+ * Revision 1.32  1995/12/11  09:12:58  adam
  * The rec_get function returns NULL if record doesn't exist - will
  * happen in the server if the result set records have been deleted since
  * the creation of the set (i.e. the search).
@@ -160,6 +179,7 @@ static int register_lock (ZServerInfo *zi)
     zi->registerChange = lastChange;
     if (zi->records)
     {
+        zebTargetInfo_close (zi->zti, 0);
         dict_close (zi->wordDict);
         is_close (zi->wordIsam);
         rec_close (&zi->records);
@@ -172,6 +192,7 @@ static int register_lock (ZServerInfo *zi)
     if (!(zi->wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
                                   sizeof (struct it_key))))
         return -1;
+    zi->zti = zebTargetInfo_open (zi->records, 0);
     return 0;
 }
 
@@ -215,8 +236,9 @@ bend_initresult *bend_init (bend_initrequest *q)
             logf (LOG_FATAL, "Cannot open resource `%s'", sob->configname);
             exit (1);
         }
+        bf_lockDir (res_get (common_resource, "lockPath"));
+        data1_tabpath = res_get(common_resource, "profilePath");
     }
-    data1_tabpath = res_get(common_resource, "profilePath");
     server_info.sets = NULL;
     server_info.registerState = -1;  /* trigger open of registers! */
     server_info.registerChange = 0;
@@ -257,16 +279,28 @@ bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
     return &r;
 }
 
-static int record_ext_read (int fd, char *buf, size_t count)
+static int record_offset;
+
+static int record_ext_read (void *fh, char *buf, size_t count)
 {
-    return read (fd, buf, count);
+    return read (*((int*) fh), buf, count);
+}
+
+static off_t record_ext_seek (void *fh, off_t offset)
+{
+    return lseek (*((int*) fh), offset + record_offset, SEEK_SET);
 }
 
 static int record_int_pos;
 static char *record_int_buf;
 static int record_int_len;
 
-static int record_int_read (int fd, char *buf, size_t count)
+static off_t record_int_seek (void *fh, off_t offset)
+{
+    return (off_t) (record_int_pos = offset);
+}
+
+static int record_int_read (void *fh, char *buf, size_t count)
 {
     int l = record_int_len - record_int_pos;
     if (l <= 0)
@@ -285,6 +319,7 @@ static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
     Record rec;
     char *fname, *file_type;
     RecType rt;
+    int fd = -1;
     struct recRetrieveCtrl retrieveCtrl;
     char subType[128];
 
@@ -295,6 +330,7 @@ static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
         *output_format = VAL_SUTRS;
         *rec_bufp = msg;
         *rec_lenp = strlen (msg);
+        logf (LOG_DEBUG, "rec_get fail on sysno=%d", sysno);
         return 0;
     }
     file_type = rec->info[recInfo_fileType];
@@ -310,6 +346,7 @@ static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
     if (rec->size[recInfo_storeData] > 0)
     {
         retrieveCtrl.readf = record_int_read;
+        retrieveCtrl.seekf = record_int_seek;
         record_int_len = rec->size[recInfo_storeData];
         record_int_buf = rec->info[recInfo_storeData];
         record_int_pos = 0;
@@ -317,7 +354,7 @@ static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
     }
     else 
     {
-        if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
+        if ((fd = open (fname, O_RDONLY)) == -1)
         {
             char *msg = "Record doesn't exist\n";
             logf (LOG_WARN|LOG_ERRNO, "Retrieve: Open record file %s", fname);
@@ -327,7 +364,15 @@ static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
             rec_rm (&rec);
             return 0;     /* or 14: System error in presenting records */
         }
+
+        memcpy (&record_offset, rec->info[recInfo_offset],
+                sizeof(record_offset));
+
+        retrieveCtrl.fh = &fd;
         retrieveCtrl.readf = record_ext_read;
+        retrieveCtrl.seekf = record_ext_seek;
+
+        record_ext_seek (retrieveCtrl.fh, 0);
     }
     retrieveCtrl.subType = subType;
     retrieveCtrl.localno = sysno;
@@ -340,7 +385,8 @@ static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
     *output_format = retrieveCtrl.output_format;
     *rec_bufp = retrieveCtrl.rec_buf;
     *rec_lenp = retrieveCtrl.rec_len;
-    close (retrieveCtrl.fd);
+    if (fd != -1)
+        close (fd);
     rec_rm (&rec);
 
     return retrieveCtrl.diagnostic;