зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
3.1 KiB
C++
93 строки
3.1 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsHtml5StreamListener.h"
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#include "nsHtml5StreamParserReleaser.h"
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NS_IMPL_ADDREF(nsHtml5StreamListener)
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NS_IMPL_RELEASE(nsHtml5StreamListener)
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NS_INTERFACE_MAP_BEGIN(nsHtml5StreamListener)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIRequestObserver)
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NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
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NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
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NS_INTERFACE_MAP_ENTRY(nsIThreadRetargetableStreamListener)
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NS_INTERFACE_MAP_END
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nsHtml5StreamListener::nsHtml5StreamListener(nsHtml5StreamParser* aDelegate)
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: mDelegateMonitor("nsHtml5StreamListener mDelegateMonitor"),
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mDelegate(aDelegate) {
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MOZ_ASSERT(aDelegate, "Must have delegate");
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aDelegate->AddRef();
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}
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nsHtml5StreamListener::~nsHtml5StreamListener() { DropDelegateImpl(); }
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void nsHtml5StreamListener::DropDelegate() {
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MOZ_ASSERT(NS_IsMainThread(),
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"Must not call DropDelegate from non-main threads.");
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DropDelegateImpl();
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}
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void nsHtml5StreamListener::DropDelegateImpl() {
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mozilla::ReentrantMonitorAutoEnter autoEnter(mDelegateMonitor);
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if (mDelegate) {
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nsCOMPtr<nsIRunnable> releaser = new nsHtml5StreamParserReleaser(mDelegate);
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if (NS_FAILED(((nsHtml5StreamParser*)mDelegate)
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->DispatchToMain(releaser.forget()))) {
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NS_WARNING("Failed to dispatch releaser event.");
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}
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mDelegate = nullptr;
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}
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}
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nsHtml5StreamParser* nsHtml5StreamListener::GetDelegate() {
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MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
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// Since this can be called only on the main
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// thread and DropDelegate() can only be called on the main thread
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// it's OK that the monitor here doesn't protect the use of the
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// return value.
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return mDelegate;
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}
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NS_IMETHODIMP
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nsHtml5StreamListener::CheckListenerChain() {
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if (MOZ_UNLIKELY(!mDelegate)) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHtml5StreamListener::OnStartRequest(nsIRequest* aRequest) {
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mozilla::ReentrantMonitorAutoEnter autoEnter(mDelegateMonitor);
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if (MOZ_UNLIKELY(!mDelegate)) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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return ((nsHtml5StreamParser*)mDelegate)->OnStartRequest(aRequest);
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}
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NS_IMETHODIMP
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nsHtml5StreamListener::OnStopRequest(nsIRequest* aRequest, nsresult aStatus) {
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mozilla::ReentrantMonitorAutoEnter autoEnter(mDelegateMonitor);
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if (MOZ_UNLIKELY(!mDelegate)) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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return ((nsHtml5StreamParser*)mDelegate)->OnStopRequest(aRequest, aStatus);
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}
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NS_IMETHODIMP
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nsHtml5StreamListener::OnDataAvailable(nsIRequest* aRequest,
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nsIInputStream* aInStream,
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uint64_t aSourceOffset,
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uint32_t aLength) {
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mozilla::ReentrantMonitorAutoEnter autoEnter(mDelegateMonitor);
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if (MOZ_UNLIKELY(!mDelegate)) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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return ((nsHtml5StreamParser*)mDelegate)
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->OnDataAvailable(aRequest, aInStream, aSourceOffset, aLength);
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}
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