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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef SERVICES_TRACING_PUBLIC_CPP_TRACING_IMPL_H_ | 5 #ifndef SERVICES_TRACING_PUBLIC_CPP_TRACING_IMPL_H_ |
6 #define SERVICES_TRACING_PUBLIC_CPP_TRACING_IMPL_H_ | 6 #define SERVICES_TRACING_PUBLIC_CPP_TRACING_IMPL_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "services/shell/public/cpp/interface_factory.h" | 9 #include "services/shell/public/cpp/interface_factory.h" |
10 #include "services/tracing/public/cpp/trace_provider_impl.h" | 10 #include "services/tracing/public/cpp/trace_provider_impl.h" |
11 #include "services/tracing/public/interfaces/tracing.mojom.h" | 11 #include "services/tracing/public/interfaces/tracing.mojom.h" |
12 | 12 |
13 namespace shell { | 13 namespace shell { |
14 class Connection; | 14 class Connection; |
15 class Connector; | 15 class Connector; |
16 } | 16 } |
17 | 17 |
18 namespace mojo { | 18 namespace mojo { |
19 | 19 |
20 // Connects to mojo:tracing during your Application's Initialize() call once | 20 // Connects to mojo:tracing during your Service's OnStart() call once per |
21 // per process. | 21 // process. |
22 // | |
23 // We need to deal with multiple ways of packaging mojo applications | |
24 // together. We'll need to deal with packages that use the mojo.ContentHandler | |
25 // interface to bundle several Applciations into a single physical on disk | |
26 // mojo binary, and with those same services each in their own mojo binary. | |
27 // | |
28 // Have your bundle ContentHandler own a TracingImpl, and each Application own | |
29 // a TracingImpl. In bundles, the second TracingImpl will be a no-op. | |
30 class TracingImpl : public shell::InterfaceFactory<tracing::TraceProvider> { | 22 class TracingImpl : public shell::InterfaceFactory<tracing::TraceProvider> { |
31 public: | 23 public: |
32 TracingImpl(); | 24 TracingImpl(); |
33 ~TracingImpl() override; | 25 ~TracingImpl() override; |
34 | 26 |
35 // This connects to the tracing service and registers ourselves to provide | 27 // Connect to the Tracing service & provide tracing data on demand. |
36 // tracing data on demand. | |
37 void Initialize(shell::Connector* connector, const std::string& url); | 28 void Initialize(shell::Connector* connector, const std::string& url); |
38 | 29 |
39 private: | 30 private: |
40 // InterfaceFactory<tracing::TraceProvider> implementation. | 31 // InterfaceFactory<tracing::TraceProvider> implementation. |
41 void Create(shell::Connection* connection, | 32 void Create(shell::Connection* connection, |
42 InterfaceRequest<tracing::TraceProvider> request) override; | 33 tracing::TraceProviderRequest request) override; |
43 | 34 |
44 std::unique_ptr<shell::Connection> connection_; | 35 std::unique_ptr<shell::Connection> connection_; |
45 TraceProviderImpl provider_impl_; | 36 TraceProviderImpl provider_impl_; |
46 | 37 |
47 DISALLOW_COPY_AND_ASSIGN(TracingImpl); | 38 DISALLOW_COPY_AND_ASSIGN(TracingImpl); |
48 }; | 39 }; |
49 | 40 |
50 } // namespace mojo | 41 } // namespace mojo |
51 | 42 |
52 #endif // SERVICES_TRACING_PUBLIC_CPP_TRACING_IMPL_H_ | 43 #endif // SERVICES_TRACING_PUBLIC_CPP_TRACING_IMPL_H_ |
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