MSpinLock Class Reference

This reference page is linked to from the following overview topics: Threading and Maya, API Classes and plug-ins, Threading and Maya API, Overview of example plug-ins, Example C++ plug-in descriptions.

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Detailed Description

Methods for managing spin locks on threads created with MThreadPool and MThreadAsync.

Lightweight spin-lock class to be used with threads created by MThreadPool and MThreadAsync.

Examples:

threadTestWithLocksCmd.cpp.

#include <MSpinLock.h>

List of all members.

Public Member Functions
	MSpinLock ()
	Create new spin lock object.
	~MSpinLock ()
	Destructor.
void	lock ()
	Create a lock.
void	unlock ()
	Release the current lock.
bool	tryLock ()
	Attempt to lock the object. Search for all occurrences

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Constructor & Destructor Documentation

MSpinLock

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Create new spin lock object.

The object is created unlocked.

~MSpinLock

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Destructor.

Calling the desctructor on a locked spin lock object does not unlock the object. That must be done by calling unlock() before calling the destructor.

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Member Function Documentation

void lock

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Create a lock.

If the object is available it is locked immediately. If it is already locked by another thread, this function waits until the other thread has unlocked it, then creates the lock.

Examples:

threadTestWithLocksCmd.cpp.

bool tryLock

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Attempt to lock the object.

If the object is already locked by another thread, the function returns right away.

Returns:

• true lock was obtained
• false lock was not obtained