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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef BLIMP_ENGINE_RENDERER_BLOB_CHANNEL_SENDER_PROXY_H_ | |
| 6 #define BLIMP_ENGINE_RENDERER_BLOB_CHANNEL_SENDER_PROXY_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <memory> | |
| 10 #include <string> | |
| 11 #include <unordered_map> | |
| 12 #include <vector> | |
| 13 | |
| 14 #include "base/containers/hash_tables.h" | |
| 15 #include "base/memory/weak_ptr.h" | |
| 16 #include "blimp/common/blimp_common_export.h" | |
| 17 #include "blimp/engine/mojo/blob_channel.mojom.h" | |
| 18 #include "blimp/net/blob_channel/blob_channel_sender.h" | |
| 19 | |
| 20 namespace blimp { | |
| 21 namespace engine { | |
| 22 | |
| 23 // Class for sending blobs (e.g. images) from the renderer to the browser | |
| 24 // process. | |
| 25 class BLIMP_COMMON_EXPORT BlobChannelSenderProxy : public BlobChannelSender { | |
| 26 public: | |
| 27 // Asynchronously request the set of cache keys from the browser process. | |
| 28 // Knowledge of the browser's cache allows the renderer to avoid re-encoding | |
| 29 // and re-transferring image assets that are already tracked by the | |
| 30 // browser-side cache. | |
| 31 // | |
| 32 // If |this| is used in the brief time before the response arrives, | |
| 33 // the object will continue to work, but false negatives will be returned | |
| 34 // for IsInEngineCache() and IsInClientCache(). | |
| 35 BlobChannelSenderProxy(); | |
| 36 | |
| 37 ~BlobChannelSenderProxy() override; | |
| 38 | |
| 39 static std::unique_ptr<BlobChannelSenderProxy> CreateForTest( | |
| 40 mojom::BlobChannelPtr blob_channel); | |
| 41 | |
| 42 // Returns true if the blob is known to exist within the Engine cache. | |
| 43 bool IsInEngineCache(const std::string& id) const; | |
| 44 | |
| 45 // Returns true if the blob has been delivered to the Client cache. | |
| 46 bool IsInClientCache(const std::string& id) const; | |
| 47 | |
| 48 // BlobChannelSender implementation. | |
| 49 std::vector<CacheStateEntry> GetCachedBlobIds() const override; | |
| 50 void PutBlob(const BlobId& id, BlobDataPtr data) override; | |
| 51 void DeliverBlob(const BlobId& id) override; | |
| 52 | |
| 53 private: | |
| 54 void OnGetCacheStateComplete( | |
| 55 const std::unordered_map<std::string, bool>& cache_state); | |
| 56 | |
| 57 // Testing constructor, used to supply a BlobChannel Mojo proxy directly. | |
| 58 explicit BlobChannelSenderProxy(mojom::BlobChannelPtr blob_channel); | |
| 59 | |
| 60 // BlobChannel Mojo IPC stub, used for delivering blobs to the browser | |
| 61 // process. | |
| 62 mojom::BlobChannelPtr blob_channel_; | |
| 63 | |
| 64 // Local copy of the cache state for the local and remote BlobChannel. | |
| 65 // Knowledge of the cache state enables callers to avoid unnecessary | |
| 66 // image encoding and transferral if the content is already in the system. | |
| 67 base::hash_map<std::string, bool> replication_state_; | |
| 68 | |
| 69 base::WeakPtrFactory<BlobChannelSenderProxy> weak_factory_; | |
| 70 | |
| 71 DISALLOW_COPY_AND_ASSIGN(BlobChannelSenderProxy); | |
| 72 }; | |
| 73 | |
| 74 } // namespace engine | |
| 75 } // namespace blimp | |
| 76 | |
| 77 #endif // BLIMP_ENGINE_RENDERER_BLOB_CHANNEL_SENDER_PROXY_H_ | |
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Chromium Code Reviews
Issue 2629743003:
Remove all blimp engine code (Closed)
