Added README.

[idzebra-moved-to-github.git] / rset / rstemp.c

diff --git a/rset/rstemp.c b/rset/rstemp.c
index 8e3ff84..f43e5e2 100644 (file)
--- a/rset/rstemp.c
+++ b/rset/rstemp.c
@@ -1,10 +1,25 @@
 /*
- * Copyright (C) 1994-1995, Index Data I/S 
+ * Copyright (C) 1994-1997, Index Data I/S 
  * All rights reserved.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: rstemp.c,v $
- * Revision 1.19  1997-09-04 13:58:57  adam
+ * Revision 1.23  1997-12-18 10:54:25  adam
+ * New method result set method rs_hits that returns the number of
+ * hits in result-set (if known). The ranked result set returns real
+ * number of hits but only when not combined with other operands.
+ *
+ * Revision 1.22  1997/10/31 12:38:12  adam
+ * Bug fix: added missing xfree() call.
+ *
+ * Revision 1.21  1997/09/17 12:19:23  adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.20  1997/09/09 13:38:17  adam
+ * Partial port to WIN95/NT.
+ *
+ * Revision 1.19  1997/09/04 13:58:57  adam
  * Added O_BINARY for open calls.
  *
  * Revision 1.18  1996/10/29 13:54:52  adam
@@ -73,7 +88,12 @@
 
 #include <fcntl.h>
 #include <assert.h>
+#ifdef WINDOWS
+#include <io.h>
+#else
 #include <unistd.h>
+#endif
+#include <string.h>
 #include <sys/types.h>
 #include <stdio.h>
 
@@ -87,13 +107,11 @@ static void r_close (RSFD rfd);
 static void r_delete (RSET ct);
 static void r_rewind (RSFD rfd);
 static int r_count (RSET ct);
+static int r_hits (RSET ct, void *oi);
 static int r_read (RSFD rfd, void *buf);
 static int r_write (RSFD rfd, const void *buf);
 static int r_score (RSFD rfd, int *score);
 
-static int temppath_init = 0;
-static char *temppath_root = NULL;
-
 static const rset_control control = 
 {
     "temp",
@@ -103,6 +121,7 @@ static const rset_control control =
     r_delete,
     r_rewind,
     r_count,
+    r_hits,
     r_read,
     r_write,
     r_score
@@ -121,6 +140,8 @@ struct rset_temp_info {
     size_t  pos_buf;       /* position of first byte in window */
     size_t  pos_border;    /* position of last byte+1 in window */
     int     dirty;         /* window is dirty */
+    int     hits;          /* no of hits */
+    char   *temp_path;
 };
 
 struct rset_temp_rfd {
@@ -143,12 +164,15 @@ static void *r_create(const struct rset_control *sel, void *parms, int *flags)
     info->pos_end = 0;
     info->pos_buf = 0;
     info->dirty = 0;
-
-    if (!temppath_init)
+    info->hits = -1;
+    if (!temp_parms->temp_path)
+       info->temp_path = NULL;
+    else
     {
-        temppath_init = 1;
-        temppath_root = res_get (common_resource, "setTmpDir");
+       info->temp_path = xmalloc (strlen(temp_parms->temp_path)+1);
+       strcpy (info->temp_path, temp_parms->temp_path);
     }
+
     return info;
 }
 
@@ -185,7 +209,7 @@ static void r_flush (RSFD rfd, int mk)
 
     if (!info->fname && mk)
     {
-        char *s = (char*) tempnam (temppath_root, "zrs");
+        char *s = (char*) tempnam (info->temp_path, "zrs");
 
         info->fname = xmalloc (strlen(s)+1);
         strcpy (info->fname, s);
@@ -233,6 +257,7 @@ static void r_close (RSFD rfd)
         close (info->fd);
         info->fd = -1;
     }
+    xfree (rfd);
 }
 
 static void r_delete (RSET ct)
@@ -241,15 +266,17 @@ static void r_delete (RSET ct)
 
     if (info->fname)
         unlink (info->fname);        
-    free (info->buf_mem);
+    xfree (info->buf_mem);
     logf (LOG_DEBUG, "r_delete: set size %ld", (long) info->pos_end);
     if (info->fname)
     {
         logf (LOG_DEBUG, "r_delete: unlink %s", info->fname);
         unlink (info->fname);
-        free (info->fname);
+        xfree (info->fname);
     }
-    free (info);
+    if (info->temp_path)
+       xfree (info->temp_path);
+    xfree (info);
 }
 
 /* r_reread:
@@ -307,6 +334,13 @@ static int r_count (RSET ct)
     return info->pos_end / info->key_size;
 }
 
+static int r_hits (RSET ct, void *oi)
+{
+    struct rset_temp_info *info = ct->buf;
+
+    return info->hits;
+}
+
 static int r_read (RSFD rfd, void *buf)
 {
     struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;