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