Class that acquires, renews, and releases a synchronization token local to the process. More...

#include <Local_Tokens.h>

Inheritance diagram for ACE_Local_Mutex:

Collaboration diagram for ACE_Local_Mutex:

Public Member Functions
	ACE_Local_Mutex (const ACE_TCHAR *token_name=0, int ignore_deadlock=0, int debug=0)
	~ACE_Local_Mutex (void)
	Destructor.
void	dump (void) const
	Dump the state of the class.
virtual ACE_Token_Proxy *	clone (void) const
	Return deep copy.
Protected Member Functions
virtual ACE_Tokens *	create_token (const ACE_TCHAR *name)
	Return a new ACE_Local_Mutex.

Detailed Description

Class that acquires, renews, and releases a synchronization token local to the process.

This class is a more general-purpose synchronization mechanism than SunOS 5.x mutexes. For example, it implements "recursive mutex" semantics, where a thread that owns the token can reacquire it without deadlocking. In addition, threads that are blocked awaiting the token are serviced in strict FIFO order as other threads release the token (SunOS 5.x mutexes don't strictly enforce an acquisition order). Lastly, ACE_Local_Mutex performs deadlock detection on acquire calls. The interfaces for acquire, tryacquire, renew, release, etc. are defined in ACE_Token_Proxy. The semantics for ACE_Local_Mutex are that of a mutex.