+ struct rset_temp_info *info = ((struct rset_temp_rfd*) rfd)->info;
+
+ if (!info->fname && mk)
+ {
+#if HAVE_MKSTEMP
+ char template[1024];
+
+ if (info->temp_path)
+ sprintf (template, "%s/zrsXXXXXX", info->temp_path);
+ else
+ sprintf (template, "zrsXXXXXX");
+
+ info->fd = mkstemp (template);
+
+ if (info->fd == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "mkstemp %s", template);
+ exit (1);
+ }
+ info->fname = (char *) xmalloc (strlen(template)+1);
+ strcpy (info->fname, template);
+#else
+ char *s = (char*) tempnam (info->temp_path, "zrs");
+ info->fname = (char *) xmalloc (strlen(s)+1);
+ strcpy (info->fname, s);
+
+ logf (LOG_DEBUG, "creating tempfile %s", info->fname);
+ info->fd = open (info->fname, O_BINARY|O_RDWR|O_CREAT, 0666);
+ if (info->fd == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "open %s", info->fname);
+ exit (1);
+ }
+#endif
+ }
+ if (info->fname && info->fd != -1 && info->dirty)
+ {
+ size_t count;
+ int r;
+
+ if (lseek (info->fd, info->pos_buf, SEEK_SET) == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "lseek %s", info->fname);
+ exit (1);
+ }
+ count = info->buf_size;
+ if (count > info->pos_end - info->pos_buf)
+ count = info->pos_end - info->pos_buf;
+ if ((r = write (info->fd, info->buf_mem, count)) < (int) count)
+ {
+ if (r == -1)
+ logf (LOG_FATAL|LOG_ERRNO, "read %s", info->fname);
+ else
+ logf (LOG_FATAL, "write of %ld but got %ld",
+ (long) count, (long) r);
+ exit (1);
+ }
+ info->dirty = 0;
+ }
+}
+
+static void r_close (RSFD rfd)
+{
+ struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
+ struct rset_temp_rfd **rfdp;
+
+ for (rfdp = &info->rfd_list; *rfdp; rfdp = &(*rfdp)->next)
+ if (*rfdp == rfd)
+ {
+ r_flush (*rfdp, 0);
+ xfree ((*rfdp)->buf);
+
+ *rfdp = (*rfdp)->next;
+ xfree (rfd);
+
+ if (!info->rfd_list && info->fname && info->fd != -1)
+ {
+ close (info->fd);
+ info->fd = -1;
+ }
+ return;
+ }
+ logf (LOG_FATAL, "r_close but no rfd match!");
+ assert (0);
+}
+
+static void r_delete (RSET ct)
+{
+ struct rset_temp_info *info = (struct rset_temp_info*) ct->buf;
+
+ if (info->fname)
+ unlink (info->fname);
+ 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);
+ xfree (info->fname);
+ }
+ if (info->temp_path)
+ xfree (info->temp_path);
+ rset_term_destroy (ct->rset_terms[0]);
+ xfree (ct->rset_terms);
+ xfree (info);
+}
+
+/* r_reread:
+ read from file to window if file is assocated with set -
+ indicated by fname
+ */
+static void r_reread (RSFD rfd)
+{
+ struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
+
+ if (info->fname)
+ {
+ size_t count;
+ int r;
+
+ info->pos_border = ((struct rset_temp_rfd *)rfd)->pos_cur +
+ info->buf_size;
+ if (info->pos_border > info->pos_end)
+ info->pos_border = info->pos_end;
+ count = info->pos_border - info->pos_buf;
+ if (count > 0)
+ {
+ if (lseek (info->fd, info->pos_buf, SEEK_SET) == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "lseek %s", info->fname);
+ exit (1);
+ }
+ if ((r = read (info->fd, info->buf_mem, count)) < (int) count)
+ {
+ if (r == -1)
+ logf (LOG_FATAL|LOG_ERRNO, "read %s", info->fname);
+ else
+ logf (LOG_FATAL, "read of %ld but got %ld",
+ (long) count, (long) r);
+ exit (1);
+ }
+ }
+ }
+ else
+ info->pos_border = info->pos_end;
+}
+
+static void r_rewind (RSFD rfd)
+{
+ struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
+
+ r_flush (rfd, 0);
+ ((struct rset_temp_rfd *)rfd)->pos_cur = 0;