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Re-land "Support multiple shells in a single process. (flutter#4932)" (…
…flutter#4998) * Re-land "Support multiple shells in a single process. (flutter#4932)" This reverts commit 723c7d0.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| // Copyright 2017 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "flutter/assets/asset_manager.h" | ||
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| #include "flutter/assets/directory_asset_bundle.h" | ||
| #include "flutter/assets/zip_asset_store.h" | ||
| #include "flutter/glue/trace_event.h" | ||
| #include "lib/fxl/files/path.h" | ||
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| #ifdef ERROR | ||
| #undef ERROR | ||
| #endif | ||
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| namespace blink { | ||
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| AssetManager::AssetManager() = default; | ||
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| AssetManager::~AssetManager() = default; | ||
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| void AssetManager::PushFront(std::unique_ptr<AssetResolver> resolver) { | ||
| if (resolver == nullptr || !resolver->IsValid()) { | ||
| return; | ||
| } | ||
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| resolvers_.push_front(std::move(resolver)); | ||
| } | ||
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| void AssetManager::PushBack(std::unique_ptr<AssetResolver> resolver) { | ||
| if (resolver == nullptr || !resolver->IsValid()) { | ||
| return; | ||
| } | ||
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| resolvers_.push_back(std::move(resolver)); | ||
| } | ||
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| // |blink::AssetResolver| | ||
| bool AssetManager::GetAsBuffer(const std::string& asset_name, | ||
| std::vector<uint8_t>* data) const { | ||
| if (asset_name.size() == 0) { | ||
| return false; | ||
| } | ||
| TRACE_EVENT0("flutter", "AssetManager::GetAsBuffer"); | ||
| for (const auto& resolver : resolvers_) { | ||
| if (resolver->GetAsBuffer(asset_name, data)) { | ||
| return true; | ||
| } | ||
| } | ||
| FXL_DLOG(ERROR) << "Could not find asset: " << asset_name; | ||
| return false; | ||
| } | ||
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| // |blink::AssetResolver| | ||
| bool AssetManager::IsValid() const { | ||
| return resolvers_.size() > 0; | ||
| } | ||
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| } // namespace blink |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| // Copyright 2017 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #ifndef FLUTTER_ASSETS_ASSET_MANAGER_H_ | ||
| #define FLUTTER_ASSETS_ASSET_MANAGER_H_ | ||
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| #include <deque> | ||
| #include <memory> | ||
| #include <string> | ||
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| #include "flutter/assets/asset_resolver.h" | ||
| #include "lib/fxl/files/unique_fd.h" | ||
| #include "lib/fxl/macros.h" | ||
| #include "lib/fxl/memory/ref_counted.h" | ||
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| namespace blink { | ||
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| class AssetManager final : public AssetResolver, | ||
| public fxl::RefCountedThreadSafe<AssetManager> { | ||
| public: | ||
| void PushFront(std::unique_ptr<AssetResolver> resolver); | ||
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| void PushBack(std::unique_ptr<AssetResolver> resolver); | ||
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| // |blink::AssetResolver| | ||
| bool IsValid() const override; | ||
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| // |blink::AssetResolver| | ||
| bool GetAsBuffer(const std::string& asset_name, | ||
| std::vector<uint8_t>* data) const override; | ||
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| private: | ||
| std::deque<std::unique_ptr<AssetResolver>> resolvers_; | ||
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| AssetManager(); | ||
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| ~AssetManager(); | ||
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| FXL_DISALLOW_COPY_AND_ASSIGN(AssetManager); | ||
| FRIEND_MAKE_REF_COUNTED(AssetManager); | ||
| FRIEND_REF_COUNTED_THREAD_SAFE(AssetManager); | ||
| }; | ||
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| } // namespace blink | ||
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| #endif // FLUTTER_ASSETS_ASSET_MANAGER_H_ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| // Copyright 2017 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
|
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| #ifndef FLUTTER_ASSETS_ASSET_RESOLVER_H_ | ||
| #define FLUTTER_ASSETS_ASSET_RESOLVER_H_ | ||
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| #include <string> | ||
| #include <vector> | ||
|
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| #include "lib/fxl/macros.h" | ||
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| namespace blink { | ||
|
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| class AssetResolver { | ||
| public: | ||
| AssetResolver() = default; | ||
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| virtual ~AssetResolver() = default; | ||
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| virtual bool IsValid() const = 0; | ||
|
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| virtual bool GetAsBuffer(const std::string& asset_name, | ||
| std::vector<uint8_t>* data) const = 0; | ||
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| private: | ||
| FXL_DISALLOW_COPY_AND_ASSIGN(AssetResolver); | ||
| }; | ||
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| } // namespace blink | ||
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| #endif // FLUTTER_ASSETS_ASSET_RESOLVER_H_ |
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