DBTableWalker::Worker Class Reference

Inheritance diagram for DBTableWalker::Worker:

Collaboration diagram for DBTableWalker::Worker:

Public Member Functions
	Worker (Walker *walker, int db_partition_id, const DBRequestKey *key)
virtual bool	Run ()
	Code to execute in a task. Returns true if task is completed. Return false to reschedule the task. More...
std::string	Description () const
	Gives a description of the task. More...
Public Member Functions inherited from Task
	Task (int task_id, int task_data_id)
	Creates a new task with the given values of task code ID and task data ID. More...
	Task (int task_id)
	Creates a new task with the given value of task code ID and wildcard for task data ID. More...
virtual	~Task ()
	Destroys a task. More...
virtual void	OnTaskCancel ()
	Called on task exit, if it is marked for cancellation. If the user wants to do any cleanup on task cancellation, then he/she can overload this function. More...
State	state () const
	Returns a state value of a task. More...
int	task_code_id () const
	Returns the code ID of this task. More...
int	task_data_id () const
	Returns the data ID of this task. More...
uint64_t	seqno () const
	Returns the sequence number of this task. More...
bool	task_cancelled () const
	Returns true if the task has been canceled. More...
uint64_t	enqueue_time () const
	Returns the time when the task was enqueued for execution. More...
uint64_t	schedule_time () const
	Returns the time when the task execution was started. More...
uint32_t	execute_delay () const
	Returns the threshold for the task execution duration. More...
uint32_t	schedule_delay () const
	Returns the time threshold for time difference between moments when the task was started and when it was enqueue. More...

Private Attributes
DBTableWalker::Walker *	walker_
std::unique_ptr< DBRequestKey >	walk_ctx_
const DBRequestKey *	key_start_
DBTablePartition *	tbl_partition_

Additional Inherited Members
Public Types inherited from Task
enum	State { INIT , WAIT , RUN }
	Task states. More...
enum	TbbState { TBB_INIT , TBB_ENQUEUED , TBB_EXEC , TBB_DONE }
	Describes states of a task according to TBB library. More...
Static Public Member Functions inherited from Task
static Task *	Running ()
	Returns a pointer to the current task the code is executing under. More...
Static Public Attributes inherited from Task
static const int	kTaskInstanceAny = -1
	Specifies value for wildcard (any or *) task data ID. More...

Detailed Description

Definition at line 64 of file db_table_walker.cc.

Constructor & Destructor Documentation

Worker()

DBTableWalker::Worker::Worker ( Walker *  walker, int  db_partition_id, const DBRequestKey *  key  )

inline

Definition at line 66 of file db_table_walker.cc.

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Member Function Documentation

Description()

std::string DBTableWalker::Worker::Description ( ) const

inlinevirtual

Gives a description of the task.

Implements Task.

Definition at line 74 of file db_table_walker.cc.

Run()

bool DBTableWalker::Worker::Run ( )

virtual

Code to execute in a task. Returns true if task is completed. Return false to reschedule the task.

Implements Task.

Definition at line 109 of file db_table_walker.cc.

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Member Data Documentation

key_start_

const DBRequestKey* DBTableWalker::Worker::key_start_

private

Definition at line 83 of file db_table_walker.cc.

tbl_partition_

DBTablePartition* DBTableWalker::Worker::tbl_partition_

private

Definition at line 86 of file db_table_walker.cc.

walk_ctx_

std::unique_ptr<DBRequestKey> DBTableWalker::Worker::walk_ctx_

private

Definition at line 80 of file db_table_walker.cc.

walker_

DBTableWalker::Walker* DBTableWalker::Worker::walker_

private

Definition at line 77 of file db_table_walker.cc.

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

• db_table_walker.cc