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LSST Data Management Base Package
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lsst::log::LogMDCScope Class Reference

#include <Log.h>

Public Member Functions

 LogMDCScope (std::string const &key, std::string const &value)
 Constructor adds KEY/VALUE pair to current thread MDC.
 
 LogMDCScope (LogMDCScope const &)=delete
 
LogMDCScopeoperator= (LogMDCScope const &)=delete
 
 LogMDCScope (LogMDCScope &&other)
 
LogMDCScopeoperator= (LogMDCScope &&other)
 
 ~LogMDCScope ()
 Destructor restores old key value in MDC.
 

Detailed Description

Definition at line 807 of file Log.h.

Constructor & Destructor Documentation

◆ LogMDCScope() [1/3]

lsst::log::LogMDCScope::LogMDCScope ( std::string const & key,
std::string const & value )
inline

Constructor adds KEY/VALUE pair to current thread MDC.

Key should not be empty (not checked).

Definition at line 814 of file Log.h.

815 : _key(key)
816 {
817 _oldValue = Log::MDC(key, value);
818 }
static std::string MDC(std::string const &key, std::string const &value)
Places a KEY/VALUE pair in the Mapped Diagnostic Context (MDC) for the current thread.
Definition Log.cc:274

◆ LogMDCScope() [2/3]

lsst::log::LogMDCScope::LogMDCScope ( LogMDCScope const & )
delete

◆ LogMDCScope() [3/3]

lsst::log::LogMDCScope::LogMDCScope ( LogMDCScope && other)
inline

Definition at line 824 of file Log.h.

824 {
825 _key = other._key;
826 _oldValue = other._oldValue;
827 other._key.clear();
828 }

◆ ~LogMDCScope()

lsst::log::LogMDCScope::~LogMDCScope ( )
inline

Destructor restores old key value in MDC.

Definition at line 847 of file Log.h.

847 {
848 if (not _key.empty()) {
849 if (_oldValue.empty()) {
850 Log::MDCRemove(_key);
851 } else {
852 Log::MDC(_key, _oldValue);
853 }
854 }
855 }
static void MDCRemove(std::string const &key)
Remove the value associated with KEY within the MDC.
Definition Log.cc:288

Member Function Documentation

◆ operator=() [1/2]

LogMDCScope & lsst::log::LogMDCScope::operator= ( LogMDCScope && other)
inline

Definition at line 830 of file Log.h.

830 {
831 if (not _key.empty()) {
832 if (_oldValue.empty()) {
833 Log::MDCRemove(_key);
834 } else {
835 Log::MDC(_key, _oldValue);
836 }
837 }
838 _key = other._key;
839 _oldValue = other._oldValue;
840 other._key.clear();
841 return *this;
842 }

◆ operator=() [2/2]

LogMDCScope & lsst::log::LogMDCScope::operator= ( LogMDCScope const & )
delete

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