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Current version: 2.3.2

ZThreads

A platform-independent, multi-threading and synchronization library for C++

RecursiveMutex Class Reference

#include <RecursiveMutex.h>

Inheritance diagram for RecursiveMutex:

List of all members.

Public Member Functions
	RecursiveMutex ()
	Create a new RecursiveMutex.
virtual	~RecursiveMutex ()
	Destroy this RecursiveMutex.
virtual void	acquire ()
virtual bool	tryAcquire (unsigned long timeout)
virtual void	release ()

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Detailed Description

Author:

Eric Crahen <http://www.code-foo.com>

Date:

<2003-07-16T17:51:33-0400>

Version:

2.2.1

A RecursiveMutex is a recursive, MUTual EXclusion Lockable object. It is recursive because it can be acquire()d and release()d more than once by the same thread, instead of causing a Deadlock_Exception.

See also:

Mutex

Guard

Scheduling

Threads competing to acquire() a Mutex are granted access in FIFO order.

Error Checking

A Mutex will throw an InvalidOp_Exception if an attempt to release() a Mutex is made from the context of a thread that does not currently own that Mutex.

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Member Function Documentation

virtual void acquire (   )  [virtual]

Acquire a RecursiveMutex, possibly blocking until the the current owner of the releases it or until an exception is thrown. Only one thread may acquire the RecursiveMutex at any given time. The same thread may acquire a RecursiveMutex multiple times. Exceptions: Interrupted_Exception  thrown when the calling thread is interrupted. A thread may be interrupted at any time, prematurely ending any wait. Postcondition: the calling thread successfully acquire ed RecursiveMutex only if no exception was thrown. See also: Lockable::acquire() Implements Lockable.

virtual void release (   )  [virtual]

Release exclusive access. No safety or state checks are performed. Precondition: This should not be called more times than the acquire() method was called. See also: Lockable::release() Implements Lockable.

virtual bool tryAcquire (  unsigned long  timeout  )  [virtual]

Acquire a RecursiveMutex, possibly blocking until the the current owner releases it, until an exception is thrown or until the given amount of time expires. Only one thread may acquire the RecursiveMutex at any given time. The same thread may acquire a RecursiveMutex multiple times. Parameters: timeout  maximum amount of time (milliseconds) this method could block Returns: true if the lock was acquired false if the lock was acquired Exceptions: Interrupted_Exception  thrown when the calling thread is interrupted. A thread may be interrupted at any time, prematurely ending any wait. Postcondition: the calling thread successfully acquired RecursiveMutex only if no exception was thrown. See also: Lockable::tryAcquire(unsigned long timeout) Implements Lockable.

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

• RecursiveMutex.h

ZThreads is Copyright © 2000-2005 by Eric Crahen, see the license for details.