idfactory.cpp

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

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#include <new>
#include "IDFactory.h"

PEGASUS_NAMESPACE_BEGIN

IDFactory::IDFactory(Uint32 firstID) : _firstID(firstID), _nextID(_firstID)
{
}

IDFactory::~IDFactory()
{
    PEGASUS_DEBUG_ASSERT(_magic);
}

Uint32 IDFactory::getID() const
{
    PEGASUS_DEBUG_ASSERT(_magic);

    IDFactory* self = (IDFactory*)this;

    Uint32 id;

    self->_mutex.lock();
    {
        if (_pool.isEmpty())
        {
            if (self->_nextID < _firstID)
                self->_nextID = _firstID;

            id = self->_nextID++;
        }
        else
        {
            id = _pool.top();
            self->_pool.pop();
        }
    }
    self->_mutex.unlock();

    return id;
}

void IDFactory::putID(Uint32 id)
{
    PEGASUS_DEBUG_ASSERT(_magic);
    PEGASUS_DEBUG_ASSERT(id >= _firstID);

    if (id < _firstID)
        return;

    _mutex.lock();
    {
        _pool.push(id);
    }
    _mutex.unlock();
}

PEGASUS_NAMESPACE_END