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58e84c8bf0
* Re-land "Support multiple shells in a single process. (#4932)" This reverts commit 723c7d01439da4261bc836075fb55651ce9e7f03.
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/assets/directory_asset_bundle.h"
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#include <utility>
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#include "flutter/fml/file.h"
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#include "flutter/fml/mapping.h"
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#include "lib/fxl/files/eintr_wrapper.h"
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namespace blink {
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DirectoryAssetBundle::DirectoryAssetBundle(fml::UniqueFD descriptor)
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: descriptor_(std::move(descriptor)) {
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if (!fml::IsDirectory(descriptor_)) {
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return;
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}
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is_valid_ = true;
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}
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DirectoryAssetBundle::~DirectoryAssetBundle() = default;
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// |blink::AssetResolver|
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bool DirectoryAssetBundle::IsValid() const {
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return is_valid_;
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}
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// |blink::AssetResolver|
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bool DirectoryAssetBundle::GetAsBuffer(const std::string& asset_name,
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std::vector<uint8_t>* data) const {
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if (data == nullptr) {
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return false;
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}
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if (!is_valid_) {
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FXL_DLOG(WARNING) << "Asset bundle was not valid.";
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return false;
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}
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fml::FileMapping mapping(
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fml::OpenFile(descriptor_, asset_name.c_str(), fml::OpenPermission::kRead,
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false /* directory */),
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false /* executable */);
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if (mapping.GetMapping() == nullptr) {
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return false;
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}
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data->resize(mapping.GetSize());
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memmove(data->data(), mapping.GetMapping(), mapping.GetSize());
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return true;
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}
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} // namespace blink
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