C++ JSObject2WrappedJSMap::Find方法代码示例

本文整理汇总了C++中JSObject2WrappedJSMap::Find方法的典型用法代码示例。如果您正苦于以下问题：C++ JSObject2WrappedJSMap::Find方法的具体用法？C++ JSObject2WrappedJSMap::Find怎么用？C++ JSObject2WrappedJSMap::Find使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类JSObject2WrappedJSMap的用法示例。

在下文中一共展示了JSObject2WrappedJSMap::Find方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: rootJSObj

// static
nsresult
nsXPCWrappedJS::GetNewOrUsed(JS::HandleObject jsObj,
                             REFNSIID aIID,
                             nsXPCWrappedJS** wrapperResult)
{
    // Do a release-mode assert against accessing nsXPCWrappedJS off-main-thread.
    if (!MOZ_LIKELY(NS_IsMainThread()))
        MOZ_CRASH();

    AutoJSContext cx;
    XPCJSRuntime* rt = nsXPConnect::GetRuntimeInstance();
    JSObject2WrappedJSMap* map = rt->GetWrappedJSMap();
    if (!map) {
        MOZ_ASSERT(map,"bad map");
        return NS_ERROR_FAILURE;
    }

    nsRefPtr<nsXPCWrappedJSClass> clasp = nsXPCWrappedJSClass::GetNewOrUsed(cx, aIID);
    if (!clasp)
        return NS_ERROR_FAILURE;

    JS::RootedObject rootJSObj(cx, clasp->GetRootJSObject(cx, jsObj));
    if (!rootJSObj)
        return NS_ERROR_FAILURE;

    nsRefPtr<nsXPCWrappedJS> root = map->Find(rootJSObj);
    if (root) {
        nsRefPtr<nsXPCWrappedJS> wrapper = root->FindOrFindInherited(aIID);
        if (wrapper) {
            wrapper.forget(wrapperResult);
            return NS_OK;
        }
    } else if (rootJSObj != jsObj) {

        // Make a new root wrapper, because there is no existing
        // root wrapper, and the wrapper we are trying to make isn't
        // a root.
        nsRefPtr<nsXPCWrappedJSClass> rootClasp = nsXPCWrappedJSClass::GetNewOrUsed(cx, NS_GET_IID(nsISupports));
        if (!rootClasp)
            return NS_ERROR_FAILURE;

        root = new nsXPCWrappedJS(cx, rootJSObj, rootClasp, nullptr);
    }

    nsRefPtr<nsXPCWrappedJS> wrapper = new nsXPCWrappedJS(cx, jsObj, clasp, root);
    wrapper.forget(wrapperResult);
    return NS_OK;
}

开发者ID:abhishekvp，项目名称:gecko-dev，代码行数:49，代码来源:XPCWrappedJS.cpp

示例2: lock

// static
nsresult
nsXPCWrappedJS::GetNewOrUsed(XPCCallContext& ccx,
                             JSObject* aJSObj,
                             REFNSIID aIID,
                             nsISupports* aOuter,
                             nsXPCWrappedJS** wrapperResult)
{
    JSObject2WrappedJSMap* map;
    JSObject* rootJSObj;
    nsXPCWrappedJS* root = nsnull;
    nsXPCWrappedJS* wrapper = nsnull;
    nsXPCWrappedJSClass* clazz = nsnull;
    XPCJSRuntime* rt = ccx.GetRuntime();
    JSBool release_root = JS_FALSE;

    map = rt->GetWrappedJSMap();
    if (!map) {
        NS_ASSERTION(map,"bad map");
        return NS_ERROR_FAILURE;
    }

    nsXPCWrappedJSClass::GetNewOrUsed(ccx, aIID, &clazz);
    if (!clazz)
        return NS_ERROR_FAILURE;
    // from here on we need to return through 'return_wrapper'

    // always find the root JSObject
    rootJSObj = clazz->GetRootJSObject(ccx, aJSObj);
    if (!rootJSObj)
        goto return_wrapper;

    // look for the root wrapper, and if found, hold the map lock until
    // we've added our ref to prevent another thread from destroying it
    // under us
    {   // scoped lock
        XPCAutoLock lock(rt->GetMapLock());
        root = map->Find(rootJSObj);
        if (root) {
            if ((nsnull != (wrapper = root->Find(aIID))) ||
                (nsnull != (wrapper = root->FindInherited(aIID)))) {
                NS_ADDREF(wrapper);
                goto return_wrapper;
            }
        }
    }

    if (!root) {
        // build the root wrapper
        if (rootJSObj == aJSObj) {
            // the root will do double duty as the interface wrapper
            wrapper = root = new nsXPCWrappedJS(ccx, aJSObj, clazz, nsnull,
                                                aOuter);
            if (!root)
                goto return_wrapper;

            {   // scoped lock
#if DEBUG_xpc_leaks
                printf("Created nsXPCWrappedJS %p, JSObject is %p\n",
                       (void*)wrapper, (void*)aJSObj);
#endif
                XPCAutoLock lock(rt->GetMapLock());
                map->Add(root);
            }

            if (!CheckMainThreadOnly(root)) {
                XPCAutoLock lock(rt->GetMapLock());
                map->Remove(root);

                wrapper = NULL;
            }

            goto return_wrapper;
        } else {
            // just a root wrapper
            nsXPCWrappedJSClass* rootClazz = nsnull;
            nsXPCWrappedJSClass::GetNewOrUsed(ccx, NS_GET_IID(nsISupports),
                                              &rootClazz);
            if (!rootClazz)
                goto return_wrapper;

            root = new nsXPCWrappedJS(ccx, rootJSObj, rootClazz, nsnull, aOuter);
            NS_RELEASE(rootClazz);

            if (!root)
                goto return_wrapper;

            release_root = JS_TRUE;

            {   // scoped lock
#if DEBUG_xpc_leaks
                printf("Created nsXPCWrappedJS %p, JSObject is %p\n",
                       (void*)root, (void*)rootJSObj);
#endif
                XPCAutoLock lock(rt->GetMapLock());
                map->Add(root);
            }

            if (!CheckMainThreadOnly(root)) {
                XPCAutoLock lock(rt->GetMapLock());
//.........这里部分代码省略.........

开发者ID:krad-radio，项目名称:mozilla-krad，代码行数:101，代码来源:XPCWrappedJS.cpp

示例3: rootJSObj

// static
nsresult
nsXPCWrappedJS::GetNewOrUsed(JS::HandleObject jsObj,
                             REFNSIID aIID,
                             nsISupports* aOuter,
                             nsXPCWrappedJS** wrapperResult)
{
    // Do a release-mode assert against accessing nsXPCWrappedJS off-main-thread.
    if (!MOZ_LIKELY(NS_IsMainThread() || NS_IsCycleCollectorThread()))
        MOZ_CRASH();

    AutoJSContext cx;
    JSObject2WrappedJSMap* map;
    nsXPCWrappedJS* root = nullptr;
    nsXPCWrappedJS* wrapper = nullptr;
    nsXPCWrappedJSClass* clazz = nullptr;
    XPCJSRuntime* rt = nsXPConnect::GetRuntimeInstance();
    bool release_root = false;

    map = rt->GetWrappedJSMap();
    if (!map) {
        NS_ASSERTION(map,"bad map");
        return NS_ERROR_FAILURE;
    }

    nsXPCWrappedJSClass::GetNewOrUsed(cx, aIID, &clazz);
    if (!clazz)
        return NS_ERROR_FAILURE;
    // from here on we need to return through 'return_wrapper'

    // always find the root JSObject
    JS::RootedObject rootJSObj(cx, clazz->GetRootJSObject(cx, jsObj));
    if (!rootJSObj)
        goto return_wrapper;

    // look for the root wrapper, and if found, hold the map lock until
    // we've added our ref to prevent another thread from destroying it
    // under us
    {   // scoped lock
        XPCAutoLock lock(rt->GetMapLock());
        root = map->Find(rootJSObj);
        if (root) {
            if ((nullptr != (wrapper = root->Find(aIID))) ||
                (nullptr != (wrapper = root->FindInherited(aIID)))) {
                NS_ADDREF(wrapper);
                goto return_wrapper;
            }
        }
    }

    if (!root) {
        // build the root wrapper
        if (rootJSObj == jsObj) {
            // the root will do double duty as the interface wrapper
            wrapper = root = new nsXPCWrappedJS(cx, jsObj, clazz, nullptr,
                                                aOuter);
            if (!root)
                goto return_wrapper;

            {   // scoped lock
#if DEBUG_xpc_leaks
                printf("Created nsXPCWrappedJS %p, JSObject is %p\n",
                       (void*)wrapper, (void*)jsObj);
#endif
                XPCAutoLock lock(rt->GetMapLock());
                map->Add(cx, root);
            }

            if (!CheckMainThreadOnly(root)) {
                XPCAutoLock lock(rt->GetMapLock());
                map->Remove(root);

                wrapper = NULL;
            }

            goto return_wrapper;
        } else {
            // just a root wrapper
            nsXPCWrappedJSClass* rootClazz = nullptr;
            nsXPCWrappedJSClass::GetNewOrUsed(cx, NS_GET_IID(nsISupports),
                                              &rootClazz);
            if (!rootClazz)
                goto return_wrapper;

            root = new nsXPCWrappedJS(cx, rootJSObj, rootClazz, nullptr, aOuter);
            NS_RELEASE(rootClazz);

            if (!root)
                goto return_wrapper;

            release_root = true;

            {   // scoped lock
#if DEBUG_xpc_leaks
                printf("Created nsXPCWrappedJS %p, JSObject is %p\n",
                       (void*)root, (void*)rootJSObj);
#endif
                XPCAutoLock lock(rt->GetMapLock());
                map->Add(cx, root);
            }
//.........这里部分代码省略.........

开发者ID:hahajung，项目名称:mozilla-central，代码行数:101，代码来源:XPCWrappedJS.cpp

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