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-rw-r--r--src/lib/log-throttle.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/lib/log-throttle.h b/src/lib/log-throttle.h
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+++ b/src/lib/log-throttle.h
@@ -0,0 +1,32 @@
+#ifndef LOG_THROTTLE_H
+#define LOG_THROTTLE_H
+
+struct log_throttle_settings {
+ /* Start throttling after we reach this many log events/interval. */
+ unsigned int throttle_at_max_per_interval;
+ /* Throttling continues until there's only this many or below
+ log events/interval. */
+ unsigned int unthrottle_at_max_per_interval;
+ /* Interval unit in milliseconds. The throttled-callback is also called
+ at this interval. Default (0) is 1000 milliseconds. */
+ unsigned int interval_msecs;
+};
+
+typedef void
+log_throttle_callback_t(unsigned int new_events_count, void *context);
+
+struct log_throttle *
+log_throttle_init(const struct log_throttle_settings *set,
+ log_throttle_callback_t *callback, void *context);
+#define log_throttle_init(set, callback, context) \
+ log_throttle_init(set - \
+ CALLBACK_TYPECHECK(callback, void (*)(unsigned int, typeof(context))), \
+ (log_throttle_callback_t *)callback, context)
+void log_throttle_deinit(struct log_throttle **throttle);
+
+/* Increase event count. Returns TRUE if the event should be logged,
+ FALSE if it's throttled. ioloop_timeval is used to determine the current
+ time. */
+bool log_throttle_accept(struct log_throttle *throttle);
+
+#endif