tarch::multicore::MultiReadSingleWriteSemaphore Class Reference

Read/write Semaphore. More...

#include <MultiReadSingleWriteSemaphore.h>

Public Types
using	Lock = tarch::multicore::MultiReadSingleWriteLock

Public Member Functions
	MultiReadSingleWriteSemaphore (bool highPriorityToWrites=true)
	Argument is ignored in TBB version.
	~MultiReadSingleWriteSemaphore ()=default

Private Member Functions
void	enterCriticalReadSection ()
	Delegate to TBB.
void	enterCriticalWriteSection ()
void	leaveCriticalReadSection ()
	Tells the semaphore that it is about to leave.
void	leaveCriticalWriteSection ()
	MultiReadSingleWriteSemaphore (const MultiReadSingleWriteSemaphore &)=delete
	You may not copy a semaphore.
MultiReadSingleWriteSemaphore &	operator= (const MultiReadSingleWriteSemaphore &)
	You may not copy a semaphore.

Private Attributes
::oneapi::tbb::spin_rw_mutex	_mutex

Friends
class	tarch::multicore::MultiReadSingleWriteLock

Detailed Description

Read/write Semaphore.

TBB-specific implementation of this class. There's a generic implementation of tarch::multicore::MultiReadSingleWriteSemaphore in the parent folder. However, TBB already offers exactly this feature (as opposed to other multithreading runtimes), so it makes no sense not to use this bespoke implementation contributed by Intel.

Definition at line 31 of file MultiReadSingleWriteSemaphore.h.

Member Typedef Documentation

Lock

using tarch::multicore::MultiReadSingleWriteSemaphore::Lock = tarch::multicore::MultiReadSingleWriteLock

Definition at line 70 of file MultiReadSingleWriteSemaphore.h.

Constructor & Destructor Documentation

MultiReadSingleWriteSemaphore() [1/2]

tarch::multicore::MultiReadSingleWriteSemaphore::MultiReadSingleWriteSemaphore ( const MultiReadSingleWriteSemaphore & )

privatedelete

You may not copy a semaphore.

MultiReadSingleWriteSemaphore() [2/2]

tarch::multicore::MultiReadSingleWriteSemaphore::MultiReadSingleWriteSemaphore

(

bool

highPriorityToWrites = true

)

Argument is ignored in TBB version.

~MultiReadSingleWriteSemaphore()

tarch::multicore::MultiReadSingleWriteSemaphore::~MultiReadSingleWriteSemaphore ( )

default

Member Function Documentation

enterCriticalReadSection()

void tarch::multicore::MultiReadSingleWriteSemaphore::enterCriticalReadSection ( )

private

Delegate to TBB.

Basically, this is a renaming of TBB's function calls to make it compatible with our manual implementation that we have to use for OpenMP and native C++.

enterCriticalWriteSection()

void tarch::multicore::MultiReadSingleWriteSemaphore::enterCriticalWriteSection ( )

private

leaveCriticalReadSection()

void tarch::multicore::MultiReadSingleWriteSemaphore::leaveCriticalReadSection ( )

private

Tells the semaphore that it is about to leave.

leaveCriticalWriteSection()

void tarch::multicore::MultiReadSingleWriteSemaphore::leaveCriticalWriteSection ( )

private

operator=()

MultiReadSingleWriteSemaphore & tarch::multicore::MultiReadSingleWriteSemaphore::operator= ( const MultiReadSingleWriteSemaphore & )

private

You may not copy a semaphore.

Definition at line 61 of file MultiReadSingleWriteSemaphore.h.

Friends And Related Symbol Documentation

tarch::multicore::MultiReadSingleWriteLock

friend class tarch::multicore::MultiReadSingleWriteLock

friend

Definition at line 33 of file MultiReadSingleWriteSemaphore.h.

Field Documentation

_mutex

::oneapi::tbb::spin_rw_mutex tarch::multicore::MultiReadSingleWriteSemaphore::_mutex

private

Definition at line 35 of file MultiReadSingleWriteSemaphore.h.

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

• src/tarch/multicore/tbb/MultiReadSingleWriteSemaphore.h