1 files changed, 31 insertions, 0 deletions
diff --git a/src/log_tail.h b/src/log_tail.h
new file mode 100644
index 0000000..3131ff6
--- /dev/null
+++ b/src/log_tail.h
@@ -0,0 +1,31 @@
+#ifndef UMBRELLA_LOG_TAIL_H
+#define UMBRELLA_LOG_TAIL_H
+
+#include "umbrella.h"
+
+/*
+ * log_tail_init: open log files for all units that have them defined,
+ * seek to end, and register fds with epoll.
+ * Call once after units are loaded.
+ */
+void log_tail_init(void);
+
+/*
+ * log_tail_handle: called when a log fd becomes readable.
+ * Reads new lines, pushes to the unit's ring buffer, and broadcasts
+ * to all attached clients.
+ */
+void log_tail_handle(int fd);
+
+/*
+ * log_tail_cleanup: close all open log fds.
+ */
+void log_tail_cleanup(void);
+
+/*
+ * log_tail_fd_to_unit: find which unit owns a given log fd.
+ * Returns NULL if not found.
+ */
+Unit *log_tail_fd_to_unit(int fd);
+
+#endif /* UMBRELLA_LOG_TAIL_H */