+ 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);
+ }
+ }
+ 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;
+
+ r_flush (rfd, 0);
+ if (info->fname && info->fd != -1)
+ {
+ close (info->fd);
+ info->fd = -1;
+ }
+ xfree (rfd);
+}
+
+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 = info->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);
+ info->pos_cur = 0;
+ info->pos_buf = 0;
+ r_reread (rfd);
+}
+
+static int r_count (RSET ct)
+{
+ struct rset_temp_info *info = (struct rset_temp_info *) ct->buf;
+
+ return info->pos_end / info->key_size;
+}
+
+static int r_read (RSFD rfd, void *buf, int *term_index)
+{
+ struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
+
+ size_t nc = info->pos_cur + info->key_size;
+
+ if (nc > info->pos_border)
+ {
+ if (nc > info->pos_end)
+ return 0;
+ r_flush (rfd, 0);
+ info->pos_buf = info->pos_cur;
+ r_reread (rfd);
+ }
+ memcpy (buf, info->buf_mem + (info->pos_cur - info->pos_buf),
+ info->key_size);
+ info->pos_cur = nc;
+ *term_index = 0;
+ return 1;
+}
+
+static int r_write (RSFD rfd, const void *buf)
+{
+ struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;