Function prune_log

lightningd/log.c:230–259

}

static size_t prune_log(struct log_book *log)
{
	size_t skipped = 0, deleted = 0, count = 0, dst = 0, max, tail;

	/* Never delete the last 10% (and definitely not last one!). */
	tail = log->num_entries / 10 + 1;
	max = log->num_entries - tail;

	for (count = 0; count < max; count++) {
		struct log_entry *i = &log->log[count];

		if (pseudorand(1000) > delete_threshold(i->level)) {
			i->skipped += skipped;
			skipped = 0;
			/* Move down if necesary. */
			log->log[dst++] = *i;
			continue;
		}

		skipped += delete_entry(log, i);
		deleted++;
	}

	/* Any skipped at tail go on the next entry */
	log->log[count].skipped += skipped;

	/* Move down the last 10% */
	memmove(log->log + dst, log->log + count, tail * sizeof(*log->log));
	return deleted;
}

static void destroy_log_book(struct log_book *log)
{