xpcom/proxy/src/nsProxyEventClass.cpp
author Zack Weinberg <zackw@panix.com>
Thu, 07 Apr 2011 18:04:40 -0700
changeset 68258 3a3109b0d39d91fe13098852c38e5c52031dec9b
parent 64576 1a89509e25e4256577f2fb729a8b922be533a9fb
permissions -rw-r--r--
Bug 266236 part 9: Move nsBoundingMetrics to its own header and prune inclusions of nsRenderingContext.h.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include "nsProxyEventPrivate.h"

#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"

#include "nsMemory.h"
#include "nsHashtable.h"

#include "xptcall.h"

// LIFETIME_CACHE will cache class for the entire cyle of the application.
#define LIFETIME_CACHE

static uint32 zero_methods_descriptor;


//////////////////////////////////////////////////////////////////////////////////////////////////
//  nsProxyEventClass
//////////////////////////////////////////////////////////////////////////////////////////////////

nsProxyEventClass::nsProxyEventClass(REFNSIID aIID, nsIInterfaceInfo* aInfo)
    : mIID(aIID),
      mInfo(aInfo),
      mDescriptors(NULL)
{
    uint16 methodCount;
    if(NS_SUCCEEDED(mInfo->GetMethodCount(&methodCount)))
    {
        if(methodCount)
        {
            int wordCount = (methodCount/32)+1;
            if(NULL != (mDescriptors = new uint32[wordCount]))
            {
                memset(mDescriptors, 0, wordCount * sizeof(uint32));
            }
        }
        else
        {
            mDescriptors = &zero_methods_descriptor;
        }
    }
}

nsProxyEventClass::~nsProxyEventClass()
{
    if (mDescriptors && mDescriptors != &zero_methods_descriptor)
        delete [] mDescriptors;
}