man SbRWMutex (Fonctions bibliothèques) -

NAME

SbRWMutex -

SYNOPSIS



#include <Inventor/threads/SbRWMutex.h>

Detailed Description

The SbRWMutex is a mutex that i sused to grant both read and write access to the data it protects. Multiple threads can have read locks on the data at once, but only one write-lock can be given out and not while a thread has a read lock on the data.

The policy on granting read locks to threads when a thread is waiting for the write lock is something that should be configurable at construction time but which isn't at the moment.

Public Types

enum Precedence { READ_PRECEDENCE, WRITE_PRECEDENCE }

Public Member Functions

SbRWMutex (Precedence policy)

~SbRWMutex (void)

int writeLock (void)

SbBool tryWriteLock (void)

int writeUnlock (void)

int readLock (void)

int tryReadLock (void)

int readUnlock (void)

Constructor & Destructor Documentation

SbRWMutex::SbRWMutex (Precedence policy) [inline]

Constructor.

SbRWMutex::~SbRWMutex (void) [inline]

Destructor.

Member Function Documentation

int SbRWMutex::writeLock (void) [inline]

This method blocks the calling thread until it gains write lock status on the SbRWMutex object.

SbBool SbRWMutex::tryWriteLock (void) [inline]

This method tries to gain write lock status on the SbRWMutex. TRUE is returned if it was successful, FALSE otherwise. This is a non-blocking operation.

int SbRWMutex::writeUnlock (void) [inline]

This method is used for unlocking the calling thread's write lock.

int SbRWMutex::readLock (void) [inline]

This method blocks the calling thread until it gains read lock status on the SbRWMutex object.

SbBool SbRWMutex::tryReadLock (void) [inline]

This method tries to gain read lock status on the SbRWMutex. TRUE is returned if it was successful, FALSE otherwise. This is a non-blocking operation.

int SbRWMutex::readUnlock (void) [inline]

This method is used for unlocking the calling thread's read lock.

Author

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