+/*
+ * innduct
+ * tailing reliable realtime streaming feeder for inn
+ * defer.c - handling of defer and backlog files
+ *
+ * Copyright Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * and contributors; see LICENCE.txt.
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#include "innduct.h"
+
/*---------- defer and backlog files ----------*/
-static void open_defer(void) {
+/*
+ * Backlog files are also processed by innduct. We find the oldest
+ * backlog file which is at least a certain amount old, and feed it
+ * back into our processing. When every article in it has been read
+ * and processed, we unlink it and look for another backlog file.
+ *
+ * If we don't have a backlog file that we're reading, we close the
+ * defer file that we're writing and make it into a backlog file at
+ * the first convenient opportunity.
+ */
+
+void open_defer(void) {
struct stat stab;
if (defer) return;
syscrash("could not seek to new end of defer file %s", path_defer);
}
-static void close_defer(void) {
+void close_defer(void) {
if (!defer)
return;
time_t now= xtime();
- char *backlog= xasprintf("%s_backlog_%lu.%lu", feedfile,
+ char *backlog= masprintf("%s_backlog_%lu.%lu", feedfile,
(unsigned long)now,
(unsigned long)stab.st_ino);
if (link(path_defer, backlog))
search_backlog_file();
}
-static void search_backlog_file(void) {
+void search_backlog_file(void) {
/* returns non-0 iff there are any backlog files */
glob_t gl;
globfree(&gl);
return;
}
-