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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 #include "blimp/net/blob_channel/blob_channel_receiver.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/macros.h" | |
| 9 #include "base/memory/ptr_util.h" | |
| 10 #include "blimp/common/blob_cache/blob_cache.h" | |
| 11 #include "blimp/common/blob_cache/id_util.h" | |
| 12 | |
| 13 namespace blimp { | |
| 14 namespace { | |
| 15 | |
| 16 // Takes incoming blobs from |delegate_| stores them in |cache_|, and provides | |
| 17 // callers a getter interface for accessing blobs from |cache_|. | |
| 18 class BLIMP_NET_EXPORT BlobChannelReceiverImpl : public BlobChannelReceiver { | |
| 19 public: | |
| 20 BlobChannelReceiverImpl(std::unique_ptr<BlobCache> cache, | |
| 21 std::unique_ptr<Delegate> delegate); | |
| 22 ~BlobChannelReceiverImpl() override; | |
| 23 | |
| 24 // BlobChannelReceiver implementation. | |
| 25 BlobDataPtr Get(const BlobId& id) override; | |
| 26 void OnBlobReceived(const BlobId& id, BlobDataPtr data) override; | |
| 27 | |
| 28 private: | |
| 29 std::unique_ptr<BlobCache> cache_; | |
| 30 std::unique_ptr<Delegate> delegate_; | |
| 31 | |
| 32 // Guards against concurrent access to |cache_|. | |
| 33 base::Lock cache_lock_; | |
| 34 | |
| 35 DISALLOW_COPY_AND_ASSIGN(BlobChannelReceiverImpl); | |
| 36 }; | |
| 37 | |
| 38 } // namespace | |
| 39 | |
| 40 // static | |
| 41 std::unique_ptr<BlobChannelReceiver> BlobChannelReceiver::Create( | |
| 42 std::unique_ptr<BlobCache> cache, | |
| 43 std::unique_ptr<Delegate> delegate) { | |
| 44 return base::WrapUnique( | |
| 45 new BlobChannelReceiverImpl(std::move(cache), std::move(delegate))); | |
| 46 } | |
| 47 | |
| 48 BlobChannelReceiverImpl::BlobChannelReceiverImpl( | |
| 49 std::unique_ptr<BlobCache> cache, | |
| 50 std::unique_ptr<Delegate> delegate) | |
| 51 : cache_(std::move(cache)), delegate_(std::move(delegate)) { | |
| 52 DCHECK(cache_); | |
| 53 | |
| 54 delegate_->SetReceiver(this); | |
| 55 } | |
| 56 | |
| 57 BlobChannelReceiverImpl::~BlobChannelReceiverImpl() {} | |
| 58 | |
| 59 BlobDataPtr BlobChannelReceiverImpl::Get(const BlobId& id) { | |
| 60 DVLOG(2) << "Get blob: " << BlobIdToString(id); | |
| 61 | |
| 62 base::AutoLock lock(cache_lock_); | |
| 63 return cache_->Get(id); | |
| 64 } | |
| 65 | |
| 66 void BlobChannelReceiverImpl::OnBlobReceived(const BlobId& id, | |
| 67 BlobDataPtr data) { | |
| 68 DVLOG(2) << "Blob received: " << BlobIdToString(id) | |
| 69 << ", size: " << data->data.size(); | |
| 70 | |
| 71 base::AutoLock lock(cache_lock_); | |
| 72 cache_->Put(id, data); | |
| 73 } | |
| 74 | |
| 75 } // namespace blimp | |
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