зеркало из https://github.com/mozilla/gecko-dev.git
97 строки
2.8 KiB
C++
97 строки
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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 "mozilla/dom/cache/StreamControl.h"
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namespace mozilla {
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namespace dom {
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namespace cache {
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void StreamControl::AddReadStream(ReadStream::Controllable* aReadStream) {
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AssertOwningThread();
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MOZ_DIAGNOSTIC_ASSERT(aReadStream);
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MOZ_ASSERT(!mReadStreamList.Contains(aReadStream));
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mReadStreamList.AppendElement(aReadStream);
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}
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void StreamControl::ForgetReadStream(ReadStream::Controllable* aReadStream) {
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AssertOwningThread();
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MOZ_ALWAYS_TRUE(mReadStreamList.RemoveElement(aReadStream));
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}
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void StreamControl::NoteClosed(ReadStream::Controllable* aReadStream,
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const nsID& aId) {
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AssertOwningThread();
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ForgetReadStream(aReadStream);
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NoteClosedAfterForget(aId);
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}
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StreamControl::~StreamControl() {
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// owning thread only, but can't call virtual AssertOwningThread in destructor
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MOZ_DIAGNOSTIC_ASSERT(mReadStreamList.IsEmpty());
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}
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void StreamControl::CloseReadStreams(const nsID& aId) {
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AssertOwningThread();
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#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
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uint32_t closedCount = 0;
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#endif
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ReadStreamList::ForwardIterator iter(mReadStreamList);
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while (iter.HasMore()) {
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RefPtr<ReadStream::Controllable> stream = iter.GetNext();
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if (stream->MatchId(aId)) {
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stream->CloseStream();
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#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
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closedCount += 1;
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#endif
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}
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}
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MOZ_DIAGNOSTIC_ASSERT(closedCount > 0);
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}
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void StreamControl::CloseAllReadStreams() {
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AssertOwningThread();
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// A copy of mReadStreamList is necessary here for two reasons:
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// 1. mReadStreamList is modified in StreamControl::ForgetReadStream (called
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// transitively)
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// 2. the this pointer is deleted by CacheStreamControlParent::Shutdown
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// (called transitively)
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auto readStreamList = mReadStreamList.Clone();
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ReadStreamList::ForwardIterator iter(readStreamList);
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while (iter.HasMore()) {
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iter.GetNext()->CloseStream();
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}
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}
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void StreamControl::CloseAllReadStreamsWithoutReporting() {
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AssertOwningThread();
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ReadStreamList::ForwardIterator iter(mReadStreamList);
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while (iter.HasMore()) {
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RefPtr<ReadStream::Controllable> stream = iter.GetNext();
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// Note, we cannot trigger IPC traffic here. So use
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// CloseStreamWithoutReporting().
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stream->CloseStreamWithoutReporting();
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}
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}
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bool StreamControl::HasEverBeenRead() const {
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ReadStreamList::ForwardIterator iter(mReadStreamList);
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while (iter.HasMore()) {
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if (iter.GetNext()->HasEverBeenRead()) {
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return true;
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}
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}
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return false;
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}
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} // namespace cache
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} // namespace dom
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} // namespace mozilla
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