MThreadPool Class Reference

#include <MThreadPool.h>

Class Description

Methods for creating and managing a thread pool.

MThreadPool class. The thread pool is created with a number of threads equal to one less than the number of logical processors.

Static Public Member Functions
static MStatus	init ()
	Initialize thread pool creation. More...
static MStatus	newParallelRegion (MThreadCallbackFunc func, void *data)
	Creates a new parallel region. More...
static MStatus	createTask (MThreadFunc func, void *data, MThreadRootTask *root)
	Add a single task to the parallel region. More...
static MStatus	executeAndJoin (MThreadRootTask *root)
	Run all tasks in the present parallel region to completion. More...
static void	release ()
	Release decreases the reference count on the thread pool. More...
static const char *	className ()
	Returns the name of this class. More...

Member Function Documentation

OPENMAYA_MAJOR_NAMESPACE_OPEN MStatus init ( )

static

Initialize thread pool creation.

No threads are created by this call.

Returns

• MS::kSuccess The method was successful.
• MS::kInsufficientMemory Insufficient memory to complete this method

Examples:

MStatus newParallelRegion ( MThreadCallbackFunc  func, void *  data  )

static

Creates a new parallel region.

All tasks created by createTask() will be added to this region. init() must be called to create the thread pool before calling this function.

Parameters

[in]	func	pointer to function to be executed by threads
[in]	data	data for function

Returns

• MS::kSuccess The method was successful.
• MS::kFailure Thread pool does not exist

Examples:

MStatus createTask ( MThreadFunc  func, void *  data, MThreadRootTask *  root  )

static

Add a single task to the parallel region.

The parallel region must already have been created by calling newParallelRegion.

Parameters

[in]	func	pointer to function to be executed by threads
[in]	data	data for function
[in]	root	root task

Returns

• MS::kSuccess The method was successful.
• MS::kFailure Thread pool does not exist

Examples:

MStatus executeAndJoin ( MThreadRootTask *  root )

static

Run all tasks in the present parallel region to completion.

This function must be called from within a function invoked by the method newParallelRegion.

Parameters

[in]

root

task to execute

Returns

• MS::kSuccess The method was successful.
• MS::kFailure Thread pool does not exist

Examples:

void release ( )

static

Release decreases the reference count on the thread pool.

When the reference count reaches zero the thread pool is deleted.

Examples:

const char * className ( )

static

Returns the name of this class.

Returns

The name of this class.

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

• MThreadPool.h
• MThreadPool.cpp