iceberg::ScopedLogger Class Reference

Bind a logger for the current thread until this object leaves scope. More...

#include <logger.h>

Public Member Functions
	ScopedLogger (std::shared_ptr< Logger > logger) noexcept
	ScopedLogger (const ScopedLogger &)=delete
ScopedLogger &	operator= (const ScopedLogger &)=delete
	ScopedLogger (ScopedLogger &&)=delete
ScopedLogger &	operator= (ScopedLogger &&)=delete

Detailed Description

Bind a logger for the current thread until this object leaves scope.

The default logging path on this thread – CurrentLogger(), Log(level, ...), and the LOG_* macros – routes to logger instead of the global default; explicit Log(logger, ...) is unaffected. Bindings nest and restore on exit, and nullptr masks any enclosing binding back to the global default. Lets an engine route Iceberg's own logs into a per catalog/session/query/task context with no call-site changes.

auto query_log = std::make_shared<MySink>();
iceberg::ScopedLogger bind(query_log);            // this thread, this scope
iceberg::Log(LogLevel::kInfo, "scan {}", id);     // -> query_log

Stack-only and same-thread (non-copyable, non-movable). For thread pools, capture on the submitting thread and re-bind on the worker:

auto captured = iceberg::GetCurrentLogger();
pool.submit([captured, work] { iceberg::ScopedLogger bind(captured); work(); });

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

• iceberg/logging/logger.h
• iceberg/logging/logger.cc