logbuf.h File Reference

Fixed-RAM rotating log buffer with severity traps (DETWS_ENABLE_LOGBUF). More...

#include "ServerConfig.h"
#include <stddef.h>
#include <stdint.h>

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Detailed Description

Fixed-RAM rotating log buffer with severity traps (DETWS_ENABLE_LOGBUF).

Keeps the last DETWS_LOG_LINES log lines in a fixed ring (the oldest is pruned on overflow - no heap, bounded latency), each line stored as <L> message where L is the severity letter. Dump the ring oldest-first for a /logs endpoint, and register a trap callback that fires when a line is logged at or above a severity threshold (forward criticals as an SNMP trap / webhook). Pure and fully host-tested - no ESP32 dependency.

Author

Douglas Quigg (dstroy0)

Date

2026

Definition in file logbuf.h.