mm::RingLogSink< Mutex > Class Template Reference

Thread-safe spdlog sink that retains the most recent log entries in memory. More...

#include <ring_log_sink.h>

Inheritance diagram for mm::RingLogSink< Mutex >:

Collaboration diagram for mm::RingLogSink< Mutex >:

Public Member Functions
	RingLogSink (std::size_t capacity=100000)
	Constructs the sink with the given ring-buffer capacity.
std::vector< std::string >	entries ()
	Returns a snapshot of all currently buffered log lines.

Protected Member Functions
void	sink_it_ (const spdlog::details::log_msg &msg) override
void	flush_ () override

Detailed Description

template<typename Mutex>
class mm::RingLogSink< Mutex >

Thread-safe spdlog sink that retains the most recent log entries in memory.

Stores up to capacity formatted log lines in a ring buffer. Once full the oldest entry is discarded to make room for each new one. entries() returns a snapshot of all buffered lines in chronological order.

Intended use: install alongside the console sink so the HTTP API can serve the in-process log without touching the filesystem.

Template Parameters

Mutex

Mutex type forwarded to spdlog::sinks::base_sink (use std::mutex for multi-threaded sinks).

Constructor & Destructor Documentation

RingLogSink()

template<typename Mutex >

mm::RingLogSink< Mutex >::RingLogSink ( std::size_t  capacity = 100000 )

inlineexplicit

Constructs the sink with the given ring-buffer capacity.

Parameters

capacity

Maximum number of log lines to retain. Defaults to 10 000.

Member Function Documentation

entries()

template<typename Mutex >

std::vector< std::string > mm::RingLogSink< Mutex >::entries ( )

inline

Returns a snapshot of all currently buffered log lines.

Lines are in chronological order (oldest first). Trailing newlines are stripped so each element is a plain text string suitable for JSON embedding.

Not const because base_sink::mutex_ is not mutable.

Returns

Vector of formatted log lines.

flush_()

template<typename Mutex >

void mm::RingLogSink< Mutex >::flush_ ( )

inlineoverrideprotected

sink_it_()

template<typename Mutex >

void mm::RingLogSink< Mutex >::sink_it_ ( const spdlog::details::log_msg &  msg )

inlineoverrideprotected

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The documentation for this class was generated from the following file:

• apps/motion_master/ring_log_sink.h