spinlock.cpp

Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. It is designed to be por

//%2006////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec Corporation; The Open Group.
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//==============================================================================
//
// Author: Konrad Rzeszutek, IBM Corp.
// Modified by:
//         Steve Hills ([e-mail])
//
//%/////////////////////////////////////////////////////////////////////////////

#include <Pegasus/Common/PegasusAssert.h>
#include <iostream>
#include <Pegasus/Common/SpinLock.h>
#include <Pegasus/Common/Thread.h>

PEGASUS_USING_PEGASUS;
PEGASUS_USING_STD;

static SpinLock _lock;

ThreadReturnType PEGASUS_THREAD_CDECL test_thread(void* parm)
{
    for (;;)
    {
	const size_t N = 1000000;

	for (size_t i = 0; i < N; i++)
	{
	    SpinLockLock(_lock);
	    SpinLockUnlock(_lock);
	}

	break;
    }

    return 0;
}

int main(int argc, char** argv)
{
    const size_t NUM_THREADS = 10;
    Thread* thread[NUM_THREADS];

    SpinLockCreate(_lock);

    for (size_t i = 0; i < NUM_THREADS; i++)
    {
	thread[i] = new Thread(test_thread, 0, false);
	thread[i]->run();
    }

    for (size_t i = 0; i < NUM_THREADS; i++)
    {
        thread[i]->join();
        delete thread[i];
    }

    cout << argv[0] << " +++++ passed all tests" << endl;

    return 0;
}