C++ (Cpp) XPCPerThreadData::IsValidの例

コード例 #1

ファイル: xpcthreadcontext.cpp プロジェクト: nioman/weaponry

// static
XPCPerThreadData*
XPCPerThreadData::GetDataImpl(JSContext *cx)
{
    XPCPerThreadData* data;

    if(!gLock)
    {
        gLock = PR_NewLock();
        if(!gLock)
            return nsnull;
    }

    if(gTLSIndex == BAD_TLS_INDEX)
    {
        nsAutoLock lock(gLock);
        // check again now that we have the lock...
        if(gTLSIndex == BAD_TLS_INDEX)
        {
            if(PR_FAILURE ==
               PR_NewThreadPrivateIndex(&gTLSIndex, xpc_ThreadDataDtorCB))
            {
                NS_ERROR("PR_NewThreadPrivateIndex failed!");
                gTLSIndex = BAD_TLS_INDEX;
                return nsnull;
            }
        }
    }

    data = (XPCPerThreadData*) PR_GetThreadPrivate(gTLSIndex);
    if(!data)
    {
        data = new XPCPerThreadData();
        if(!data || !data->IsValid())
        {
            NS_ERROR("new XPCPerThreadData() failed!");
            if(data)
                delete data;
            return nsnull;
        }
        if(PR_FAILURE == PR_SetThreadPrivate(gTLSIndex, data))
        {
            NS_ERROR("PR_SetThreadPrivate failed!");
            delete data;
            return nsnull;
        }
    }

    if(cx && !sMainJSThread && NS_IsMainThread())
    {
        sMainJSThread = cx->thread;

        sMainThreadData = data;

        sMainThreadData->mThread = PR_GetCurrentThread();
    }

    return data;
}