+ r_reread(rfd);
+ prfd->cur = 0;
+ return rfd;
+}
+
+/* r_flush:
+ flush current window to file if file is assocated with set
+ */
+static void r_flush(RSFD rfd, int mk)
+{
+ struct rset_private *info = rfd->rset->priv;
+
+ 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)
+ {
+ yaz_log(YLOG_FATAL|YLOG_ERRNO, "rstemp: mkstemp %s", template);
+ exit(1);
+ }
+ info->fname = nmem_strdup(rfd->rset->nmem, template);
+#else
+ char *s = (char*) tempnam(info->temp_path, "zrs");
+ info->fname= nmem_strdup(rfd->rset->nmem, s);
+
+ yaz_log(log_level, "creating tempfile %s", info->fname);
+ info->fd = open(info->fname, O_BINARY|O_RDWR|O_CREAT, 0666);
+ if (info->fd == -1)
+ {
+ yaz_log(YLOG_FATAL|YLOG_ERRNO, "rstemp: 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)
+ {
+ yaz_log(YLOG_FATAL|YLOG_ERRNO, "rstemp: lseek (1) %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)
+ yaz_log(YLOG_FATAL|YLOG_ERRNO, "rstemp: write %s", info->fname);
+ else
+ yaz_log(YLOG_FATAL, "rstemp: write of %ld but got %ld",
+ (long) count, (long) r);
+ exit(1);
+ }
+ info->dirty = 0;
+ }
+}
+
+static void r_close(RSFD rfd)
+{
+ struct rset_private *info = (struct rset_private *)rfd->rset->priv;
+ if (rfd_is_last(rfd))
+ {
+ r_flush(rfd, 0);
+ if (info->fname && info->fd != -1)
+ {
+ close(info->fd);
+ info->fd = -1;
+ }
+ }