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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/task/sequence_manager/delayed_task_handle_delegate.h"
#include "base/features.h"
#include "base/task/sequence_manager/task_queue_impl.h"
namespace base::sequence_manager::internal {
DelayedTaskHandleDelegate::DelayedTaskHandleDelegate(TaskQueueImpl* outer)
: outer_(outer) {}
DelayedTaskHandleDelegate::~DelayedTaskHandleDelegate() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!IsValid());
}
WeakPtr<DelayedTaskHandleDelegate> DelayedTaskHandleDelegate::AsWeakPtr() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return weak_ptr_factory_.GetWeakPtr();
}
bool DelayedTaskHandleDelegate::IsValid() const {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return weak_ptr_factory_.HasWeakPtrs();
}
void DelayedTaskHandleDelegate::CancelTask() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (!IsValid()) {
return;
}
if (features::IsReducePPMsEnabled()) {
weak_ptr_factory_.InvalidateWeakPtrsAndDoom();
} else {
weak_ptr_factory_.InvalidateWeakPtrs();
}
// If the task is still inside the heap, then it can be removed directly.
if (heap_handle_.IsValid()) {
outer_->RemoveCancelableTask(heap_handle_);
}
}
void DelayedTaskHandleDelegate::SetHeapHandle(HeapHandle heap_handle) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(heap_handle.IsValid());
heap_handle_ = heap_handle;
}
void DelayedTaskHandleDelegate::ClearHeapHandle() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
heap_handle_ = HeapHandle();
}
HeapHandle DelayedTaskHandleDelegate::GetHeapHandle() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return heap_handle_;
}
void DelayedTaskHandleDelegate::WillRunTask() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(IsValid());
// The task must be removed from the heap before running it.
DCHECK(!heap_handle_.IsValid());
if (features::IsReducePPMsEnabled()) {
weak_ptr_factory_.InvalidateWeakPtrsAndDoom();
} else {
weak_ptr_factory_.InvalidateWeakPtrs();
}
}
} // namespace base::sequence_manager::internal
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