ACE  6.1.8
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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:
Inheritance graph
Collaboration diagram for ACE_RW_Thread_Mutex:
Collaboration graph

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

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

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  )

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


Declare the dynamic allocation hooks.

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