+const struct rset_control *rset_kind_temp = &control;
+
+struct rset_temp_info {
+ int fd; /* file descriptor for temp file */
+ char *fname; /* name of temp file */
+ char *buf_mem; /* window buffer */
+ size_t buf_size; /* size of window */
+ size_t pos_end; /* last position in set */
+ 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 */
+ zint hits; /* no of hits */
+ char *temp_path;
+};
+
+struct rset_temp_rfd {
+ void *buf;
+ size_t pos_cur; /* current position in set */
+ /* FIXME - term pos or what ?? */
+ zint cur; /* number of the current hit */
+};
+
+RSET rstemp_create( NMEM nmem, const struct key_control *kcontrol,
+ int scope,
+ const char *temp_path)
+{
+ RSET rnew=rset_create_base(&control, nmem, kcontrol, scope);
+ struct rset_temp_info *info;
+
+ info = (struct rset_temp_info *) nmem_malloc(rnew->nmem, sizeof(*info));
+ info->fd = -1;
+ info->fname = NULL;
+ info->buf_size = 4096;
+ info->buf_mem = (char *) nmem_malloc (rnew->nmem, info->buf_size);
+ info->pos_end = 0;
+ info->pos_buf = 0;
+ info->dirty = 0;
+ info->hits = 0;
+
+ if (!temp_path)
+ info->temp_path = NULL;
+ else
+ info->temp_path = nmem_strdup(rnew->nmem,temp_path);
+ rnew->priv=info;
+ return rnew;
+} /* rstemp_create */
+
+static void r_delete (RSET ct)
+{
+ struct rset_temp_info *info = (struct rset_temp_info*) ct->priv;
+
+ 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);
+ }
+}
+
+
+static RSFD r_open (RSET ct, int flag)
+{
+ struct rset_temp_info *info = (struct rset_temp_info *) ct->priv;
+ RSFD rfd;
+ struct rset_temp_rfd *prfd;
+
+ if (info->fd == -1 && info->fname)
+ {
+ if (flag & RSETF_WRITE)
+ info->fd = open (info->fname, O_BINARY|O_RDWR|O_CREAT, 0666);
+ else
+ info->fd = open (info->fname, O_BINARY|O_RDONLY);
+ if (info->fd == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "open %s", info->fname);
+ exit (1);
+ }
+ }
+ rfd = rfd_create_base(ct);
+ if (!rfd->priv){
+ prfd= (struct rset_temp_rfd *) nmem_malloc(ct->nmem, sizeof(*prfd));
+ rfd->priv=(void *)prfd;
+ prfd->buf = nmem_malloc (ct->nmem,ct->keycontrol->key_size);
+ } else
+ prfd= rfd->priv;
+ r_flush (rfd, 0);
+ prfd->pos_cur = 0;
+ info->pos_buf = 0;
+ 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_temp_info *info = ((struct rset_temp_rfd*) rfd)->info; */
+ struct rset_temp_info *info = rfd->rset->priv;
+
+ if (!info->fname && mk)
+ {
+#if HAVE_MKSTEMP
+ char template[1024];