#include <mdl.h>

Public Types
enum	enum_wait_status { EMPTY = 0, GRANTED, VICTIM, TIMEOUT, KILLED }

Public Member Functions
	MDL_wait ()
	~MDL_wait ()
bool	set_status (enum_wait_status result_arg)
enum_wait_status	get_status ()
void	reset_status ()
enum_wait_status	timed_wait (MDL_context_owner owner, struct timespec abs_timeout, bool signal_timeout, const PSI_stage_info *wait_state_name)

Detailed Description

A reliable way to wait on an MDL lock.

Definition at line 687 of file mdl.h.

Constructor & Destructor Documentation

MDL_wait::MDL_wait ( )

Construct an empty wait slot.

Definition at line 1215 of file mdl.cc.

MDL_wait::~MDL_wait ( )

Destroy system resources.

Definition at line 1225 of file mdl.cc.

MDL_wait::enum_wait_status MDL_wait::get_status ( )

Query the current value of the wait slot.

Definition at line 1254 of file mdl.cc.

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void MDL_wait::reset_status ( )

Clear the current value of the wait slot.

Definition at line 1266 of file mdl.cc.

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bool MDL_wait::set_status ( enum_wait_status status_arg )

Set the status unless it's already set. Return FALSE if set, TRUE otherwise.

Definition at line 1237 of file mdl.cc.

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MDL_wait::enum_wait_status MDL_wait::timed_wait	(	MDL_context_owner *	owner,
		struct timespec *	abs_timeout,
		bool	set_status_on_timeout,
		const PSI_stage_info *	wait_state_name
	)

Wait for the status to be assigned to this wait slot.

Parameters

owner	MDL context owner.
abs_timeout	Absolute time after which waiting should stop.
set_status_on_timeout	TRUE - If in case of timeout waiting context should close the wait slot by sending TIMEOUT to itself. FALSE - Otherwise.
wait_state_name	Thread state name to be set for duration of wait.

Definition at line 1289 of file mdl.cc.

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