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SbRWMutex
Langue: en
Version: 319382 (ubuntu - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
Sommaire
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.
Referenced by SoDB::writelock().
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.
Referenced by SoDB::writeunlock().
int SbRWMutex::readLock (void) [inline]
This method blocks the calling thread until it gains read lock status on the SbRWMutex object.
Referenced by SoDB::readlock().
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.
Referenced by SoDB::readunlock().
Author
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