ACE_RW_Thread_Mutex Class Reference

Wrapper for readers/writer locks that exist within a process. More...

#include <RW_Thread_Mutex.h>

Inheritance diagram for ACE_RW_Thread_Mutex:

Collaboration diagram for ACE_RW_Thread_Mutex:

Public Member Functions
	ACE_RW_Thread_Mutex (const ACE_TCHAR *name=0, void *arg=0)
	~ACE_RW_Thread_Mutex (void)
	Default dtor. More...
int	tryacquire_write_upgrade (void)
void	dump (void) const
	Dump the state of an object. More...
Public Member Functions inherited from ACE_RW_Mutex
	ACE_RW_Mutex (int type=USYNC_THREAD, const ACE_TCHAR *name=0, void *arg=0)
	Initialize a readers/writer lock. More...
	~ACE_RW_Mutex (void)
	Implicitly destroy a readers/writer lock. More...
int	remove (void)
int	acquire_read (void)
	Acquire a read lock, but block if a writer hold the lock. More...
int	acquire_write (void)
int	tryacquire_read (void)
int	tryacquire_write (void)
	Conditionally acquire a write lock (i.e., won't block). More...
int	tryacquire_write_upgrade (void)
int	acquire (void)
int	tryacquire (void)
int	release (void)
	Unlock a readers/writer lock. More...
const ACE_rwlock_t &	lock (void) const
	Return the underlying lock. More...
void	dump (void) const
	Dump the state of an object. More...

Public Attributes
	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks. More...
Public Attributes inherited from ACE_RW_Mutex
	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks. More...

Additional Inherited Members
Protected Attributes inherited from ACE_RW_Mutex
ACE_rwlock_t	lock_
	Readers/writer lock. More...
bool	removed_

Detailed Description

Wrapper for readers/writer locks that exist within a process.

Constructor & Destructor Documentation

ACE_RW_Thread_Mutex::ACE_RW_Thread_Mutex	(	const ACE_TCHAR *	name = 0,
		void *	arg = 0
	)

ACE_RW_Thread_Mutex::~ACE_RW_Thread_Mutex ( void  )

inline

Default dtor.

Member Function Documentation

void ACE_RW_Thread_Mutex::dump

(

void

)

const

Dump the state of an object.

int ACE_RW_Thread_Mutex::tryacquire_write_upgrade ( void  )

inline

Conditionally upgrade a read lock to a write lock. This only works if there are no other readers present, in which case the method returns 0. Otherwise, the method returns -1 and sets errno to EBUSY. Note that the caller of this method must already possess this lock as a read lock (but this condition is not checked by the current implementation).

Member Data Documentation

ACE_RW_Thread_Mutex::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

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

• RW_Thread_Mutex.h
• RW_Thread_Mutex.cpp
• RW_Thread_Mutex.inl