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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 "services/image_decoder/image_decoder_service.h" | |
6 | |
7 #include "base/macros.h" | |
8 #include "base/memory/ptr_util.h" | |
9 #include "base/threading/thread_task_runner_handle.h" | |
10 #include "base/time/time.h" | |
11 #include "mojo/public/cpp/bindings/strong_binding.h" | |
12 #include "services/image_decoder/image_decoder_impl.h" | |
13 #include "services/image_decoder/public/interfaces/image_decoder.mojom.h" | |
14 #include "services/service_manager/public/cpp/interface_registry.h" | |
15 #include "services/service_manager/public/cpp/service_context.h" | |
16 | |
17 namespace image_decoder { | |
18 | |
19 namespace { | |
20 | |
21 void OnConnectionLost(std::unique_ptr<service_manager::ServiceContextRef> ref) { | |
22 // No-op. This merely takes ownership of |ref| so it can be destroyed when | |
23 // this function is invoked. | |
24 } | |
25 | |
26 void OnImageDecoderRequest( | |
27 service_manager::ServiceContextRefFactory* ref_factory, | |
28 mojom::ImageDecoderRequest request) { | |
29 mojo::MakeStrongBinding( | |
30 base::MakeUnique<ImageDecoderImpl>(ref_factory->CreateRef()), | |
31 std::move(request)); | |
32 } | |
33 | |
34 } // namespace | |
35 | |
36 ImageDecoderService::ImageDecoderService() : weak_factory_(this) {} | |
37 | |
38 ImageDecoderService::~ImageDecoderService() = default; | |
39 | |
40 // static | |
41 std::unique_ptr<service_manager::Service> ImageDecoderService::Create() { | |
42 return base::MakeUnique<ImageDecoderService>(); | |
43 } | |
44 | |
45 void ImageDecoderService::OnStart() { | |
46 ref_factory_.reset(new service_manager::ServiceContextRefFactory( | |
47 base::Bind(&ImageDecoderService::MaybeRequestQuitDelayed, | |
48 base::Unretained(this)))); | |
49 } | |
50 | |
51 bool ImageDecoderService::OnConnect( | |
52 const service_manager::ServiceInfo& remote_info, | |
53 service_manager::InterfaceRegistry* registry) { | |
54 // Add a reference to the service and tie it to the lifetime of the | |
55 // InterfaceRegistry's connection. | |
56 std::unique_ptr<service_manager::ServiceContextRef> connection_ref = | |
57 ref_factory_->CreateRef(); | |
58 registry->AddConnectionLostClosure( | |
59 base::Bind(&OnConnectionLost, base::Passed(&connection_ref))); | |
60 registry->AddInterface( | |
61 base::Bind(&OnImageDecoderRequest, ref_factory_.get())); | |
62 return true; | |
63 } | |
64 | |
65 void ImageDecoderService::MaybeRequestQuitDelayed() { | |
66 base::ThreadTaskRunnerHandle::Get()->PostDelayedTask( | |
67 FROM_HERE, | |
68 base::Bind(&ImageDecoderService::MaybeRequestQuit, | |
69 weak_factory_.GetWeakPtr()), | |
70 base::TimeDelta::FromSeconds(5)); | |
71 } | |
72 | |
73 void ImageDecoderService::MaybeRequestQuit() { | |
74 DCHECK(ref_factory_); | |
75 if (ref_factory_->HasNoRefs()) | |
76 context()->RequestQuit(); | |
77 } | |
78 | |
79 } // namespace image_decoder | |
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