pegasus/src/Pegasus/Common/Mutex.h - diff

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Diff for /pegasus/src/Pegasus/Common/Mutex.h between version 1.1 and 1.1.2.1

version 1.1, 2005/10/17 21:12:57

version 1.1.2.1, 2005/10/17 21:12:57

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//%2005////////////////////////////////////////////////////////////////////////

// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.

// IBM Corp.; EMC Corporation, The Open Group.

// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; VERITAS Software Corporation; The Open Group.

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to

// deal in the Software without restriction, including without limitation the

// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

// sell copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN

// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED

// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

//==============================================================================

// Author: Mike Day (mdday@us.ibm.com)

// Modified By: Markus Mueller

// Ramnath Ravindran (Ramnath.Ravindran@compaq.com)

// David Eger (dteger@us.ibm.com)

// Amit K Arora, IBM (amita@in.ibm.com) for PEP#101

// Sean Keenan, Hewlett-Packard Company (sean.keenan@hp.com)

// Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com)

// David Dillard, VERITAS Software Corp.

// (david.dillard@veritas.com)

// Aruran, IBM (ashanmug@in.ibm.com) for BUG# 3518

//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_Mutex_h

#define Pegasus_Mutex_h

#include <Pegasus/Common/Config.h>

#include <Pegasus/Common/Linkage.h>

#include <Pegasus/Common/IPCTypes.h>

PEGASUS_NAMESPACE_BEGIN

class PEGASUS_COMMON_LINKAGE Mutex

{

public:

Mutex();

Mutex(int type);

~Mutex();

// block until gaining the lock - throw a deadlock

// exception if process already holds the lock

// @exception Deadlock

// @exception WaitFailed

void lock(PEGASUS_THREAD_TYPE caller);

// try to gain the lock - lock succeeds immediately if the

// mutex is not already locked. throws an exception and returns

// immediately if the mutex is currently locked.

// @exception Deadlock

// @exception AlreadyLocked

// @exception WaitFailed

void try_lock(PEGASUS_THREAD_TYPE caller);

// wait for milliseconds and throw an exception then return if the wait

// expires without gaining the lock. Otherwise return without throwing an

// exception.

// @exception Deadlock

// @exception TimeOut

// @exception WaitFailed

void timed_lock( Uint32 milliseconds, PEGASUS_THREAD_TYPE caller);

// unlock the semaphore

// @exception Permission

void unlock();

inline PEGASUS_THREAD_TYPE get_owner() { return(_mutex.owner); }

private:

inline void _set_owner(PEGASUS_THREAD_TYPE owner) { _mutex.owner = owner; }

PEGASUS_MUTEX_HANDLE _mutex;

PEGASUS_MUTEX_HANDLE & _get_handle()

{

return _mutex;

}

// Hide the assignment operator to avoid implicit use of the default

// assignment operator. Do not use this method.

Mutex& operator=(const Mutex& original) {return *this;}

// Hide the copy constructor to avoid implicit use of the default

// copy constructor. Do not use this method.

Mutex(const Mutex& _mutex);

friend class Condition;

};

PEGASUS_NAMESPACE_END

#endif /* Pegasus_Mutex_h */

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