blob_bytes_provider.cc | Explore in Territory

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/platform/blob/blob_bytes_provider.h"

#include <utility>

#include "base/containers/span.h"
#include "base/memory/ptr_util.h"
#include "base/numerics/safe_conversions.h"
#include "base/task/thread_pool.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/renderer/platform/scheduler/public/main_thread.h"
#include "third_party/blink/renderer/platform/scheduler/public/post_cross_thread_task.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_copier_mojo.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_copier_std.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/blink/renderer/platform/wtf/wtf.h"

namespace blink {

namespace {

// Helper class that streams all the bytes from a vector of RawData RefPtrs to
// a mojo data pipe. Instances will delete themselves when all data has been
// written, or when the data pipe is disconnected.
class BlobBytesStreamer { … };

}  // namespace

constexpr size_t BlobBytesProvider::kMaxConsolidatedItemSizeInBytes;

BlobBytesProvider::BlobBytesProvider() { … }

BlobBytesProvider::~BlobBytesProvider() { … }

void BlobBytesProvider::AppendData(scoped_refptr<RawData> data) { … }

void BlobBytesProvider::AppendData(base::span<const char> data) { … }

// static
void BlobBytesProvider::Bind(
    std::unique_ptr<BlobBytesProvider> provider,
    mojo::PendingReceiver<mojom::blink::BytesProvider> receiver) { … }

void BlobBytesProvider::RequestAsReply(RequestAsReplyCallback callback) { … }

void BlobBytesProvider::RequestAsStream(
    mojo::ScopedDataPipeProducerHandle pipe) { … }

void BlobBytesProvider::RequestAsFile(uint64_t source_offset,
                                      uint64_t source_size,
                                      base::File file,
                                      uint64_t file_offset,
                                      RequestAsFileCallback callback) { … }

// This keeps the process alive while blobs are being transferred.
void BlobBytesProvider::IncreaseChildProcessRefCount() { … }

void BlobBytesProvider::DecreaseChildProcessRefCount() { … }

}  // namespace blink
chromium/third_party/blink/renderer/platform/blob/blob_bytes_provider.cc
