Optional interface for backends that expose stored records. More...

#include <ILogReader.hpp>

Inheritance diagram for logit::ILogReader:

Public Member Functions
virtual	~ILogReader ()=default

virtual std::vector< LogRecordSnapshot >	read_range (int64_t from_ms, int64_t to_ms, std::size_t limit=0) const =0
	Reads records in `[from_ms, to_ms)` ordered by timestamp.

virtual std::vector< LogRecordSnapshot >	read_recent (std::size_t limit, int64_t period_ms=0, LogReadOrder order=LogReadOrder::Ascending) const =0
	Reads the most recent records.

Detailed Description

Optional interface for backends that expose stored records.

Implementations should provide read_range for time-window queries and read_recent for "tail -n" style access. Both return owning snapshots so the caller does not depend on backend locking details.

Definition at line 71 of file ILogReader.hpp.

Constructor & Destructor Documentation

◆ ~ILogReader()

virtual logit::ILogReader::~ILogReader ( )

virtualdefault

Member Function Documentation

◆ read_range()

virtual std::vector< LogRecordSnapshot > logit::ILogReader::read_range	(	int64_t	from_ms,
		int64_t	to_ms,
		std::size_t	limit = 0 ) const

pure virtual

Reads records in [from_ms, to_ms) ordered by timestamp.

Parameters

from_ms	Inclusive start timestamp.
to_ms	Exclusive end timestamp.
limit	Maximum number of records (0 = unlimited).

Returns: Matching records in backend-defined order (usually ascending).

Implemented in logit::MdbxLogger, and logit::MemoryLogger.

◆ read_recent()

virtual std::vector< LogRecordSnapshot > logit::ILogReader::read_recent	(	std::size_t	limit,
		int64_t	period_ms = 0,
		LogReadOrder	order = LogReadOrder::Ascending ) const