99 lines
2.2 KiB
C++
99 lines
2.2 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <algorithm>
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#include "webrtc/base/taskparent.h"
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#include "webrtc/base/common.h"
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#include "webrtc/base/task.h"
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#include "webrtc/base/taskrunner.h"
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namespace rtc {
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TaskParent::TaskParent(Task* derived_instance, TaskParent *parent)
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: parent_(parent) {
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ASSERT(derived_instance != NULL);
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ASSERT(parent != NULL);
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runner_ = parent->GetRunner();
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parent_->AddChild(derived_instance);
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Initialize();
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}
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TaskParent::TaskParent(TaskRunner *derived_instance)
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: parent_(NULL),
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runner_(derived_instance) {
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ASSERT(derived_instance != NULL);
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Initialize();
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}
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TaskParent::~TaskParent() = default;
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// Does common initialization of member variables
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void TaskParent::Initialize() {
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children_.reset(new ChildSet());
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child_error_ = false;
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}
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void TaskParent::AddChild(Task *child) {
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children_->insert(child);
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}
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#if !defined(NDEBUG)
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bool TaskParent::IsChildTask(Task *task) {
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ASSERT(task != NULL);
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return task->parent_ == this && children_->find(task) != children_->end();
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}
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#endif
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bool TaskParent::AllChildrenDone() {
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for (ChildSet::iterator it = children_->begin();
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it != children_->end();
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++it) {
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if (!(*it)->IsDone())
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return false;
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}
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return true;
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}
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bool TaskParent::AnyChildError() {
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return child_error_;
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}
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void TaskParent::AbortAllChildren() {
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if (children_->size() > 0) {
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#if !defined(NDEBUG)
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runner_->IncrementAbortCount();
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#endif
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ChildSet copy = *children_;
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for (ChildSet::iterator it = copy.begin(); it != copy.end(); ++it) {
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(*it)->Abort(true); // Note we do not wake
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}
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#if !defined(NDEBUG)
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runner_->DecrementAbortCount();
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#endif
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}
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}
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void TaskParent::OnStopped(Task *task) {
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AbortAllChildren();
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parent_->OnChildStopped(task);
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}
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void TaskParent::OnChildStopped(Task *child) {
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if (child->HasError())
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child_error_ = true;
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children_->erase(child);
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}
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} // namespace rtc
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