Gray::cThreadLockRW Class Reference

#include <cThreadLockRW.h>

Inheritance diagram for Gray::cThreadLockRW:

Public Member Functions
	cThreadLockRW ()
	~cThreadLockRW ()
void	IncReadLockCount ()
void	DecReadLockCount ()
Public Member Functions inherited from Gray::cThreadLockFast
	cThreadLockFast () noexcept
	cThreadLockFast (const cThreadLockFast &a) noexcept
	~cThreadLockFast () noexcept
bool	ClearThreadLockOwner (THREADID_t nTid)
void	Lock ()
bool	LockTry (TIMESYSD_t dwDelayMS=0)
void	Unlock ()
Public Member Functions inherited from Gray::cThreadLockBase
	cThreadLockBase () noexcept
bool	isLocked () const noexcept
THREADID_t	get_ThreadLockOwner () const
bool	isThreadLockedByCurrent () const noexcept

Public Attributes
cInterlockedInt	m_nReadLockCount
	How many readers (for orig m_nLockThreadID) More...
cInterlockedInt	m_nOtherReadLockCount
	How many outside (not on orig thread) readers. More...
bool	m_bLostOrder
	can't figure who is thread. More...

Friends
class	cThreadLockRWTests

Additional Inherited Members
Protected Member Functions inherited from Gray::cThreadLockBase
THREADID_t	__DECL_ALIGN (_SIZEOF_THREADID) m_nLockThreadID
	The thread that has the lock. cThreadId:k_NULL is not locked. More...
Protected Member Functions inherited from Gray::cLockableBase
	cLockableBase () noexcept
	~cLockableBase ()
LONG	get_LockCount () const
bool	isLocked () const
void	IncLockCount ()
LONG	DecLockCount ()
void	Lock ()
LONG	Unlock ()
Protected Member Functions inherited from Gray::cNonCopyable
	cNonCopyable () noexcept
	Force the use of Factory creation via protected constructor. More...
	~cNonCopyable () noexcept

Detailed Description

Todo:

cThreadLockRW cheap RW declaring thread locking mechanism. Recursive and upgradeable (i.e. i can start with read and upgrade to write permissions on the same thread) Only one thread may write lock something. multiple read locks may be released out of order, i.e first read locker releases with other readers = unknown read thread. similar to : Linux thread locking pthread_rwlock_wrlock()

RULES: FR = first thread reader. FW = first thread writer. (just like a normal thread lock) OR = other thread reader OW = other thread writer. if the first locker is write, FR=go, FW=go, OR=wait, OW=wait if the first locker is reader, FR=go, FW=go, OR=go, OW=wait.

Constructor & Destructor Documentation

cThreadLockRW()

Gray::cThreadLockRW::cThreadLockRW ( )

inline

~cThreadLockRW()

Gray::cThreadLockRW::~cThreadLockRW ( )

inline

Member Function Documentation

DecReadLockCount()

void Gray::cThreadLockRW::DecReadLockCount ( )

inline

IncReadLockCount()

void Gray::cThreadLockRW::IncReadLockCount ( )

inline

Friends And Related Function Documentation

cThreadLockRWTests

friend class cThreadLockRWTests

friend

Member Data Documentation

m_bLostOrder

bool Gray::cThreadLockRW::m_bLostOrder

can't figure who is thread.

m_nOtherReadLockCount

cInterlockedInt Gray::cThreadLockRW::m_nOtherReadLockCount

How many outside (not on orig thread) readers.

m_nReadLockCount

cInterlockedInt Gray::cThreadLockRW::m_nReadLockCount

How many readers (for orig m_nLockThreadID)

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

• c:/Dennis/Source/Gray/GrayCore/include/cThreadLockRW.h