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Side by Side Diff: services/shell/public/cpp/service_context_ref.h

Issue 2131493002: ShellConnection -> ServiceContext (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@st
Patch Set: . Created 4 years, 5 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 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 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_SHELL_PUBLIC_CPP_SHELL_CONNECTION_REF_H_ 5 #ifndef SERVICES_SHELL_PUBLIC_CPP_SERVICE_CONTEXT_REF_H_
6 #define SERVICES_SHELL_PUBLIC_CPP_SHELL_CONNECTION_REF_H_ 6 #define SERVICES_SHELL_PUBLIC_CPP_SERVICE_CONTEXT_REF_H_
7 7
8 #include <memory> 8 #include <memory>
9 9
10 #include "base/callback.h" 10 #include "base/callback.h"
11 #include "base/macros.h" 11 #include "base/macros.h"
12 #include "base/memory/weak_ptr.h" 12 #include "base/memory/weak_ptr.h"
13 13
14 namespace shell { 14 namespace shell {
15 15
16 class ShellConnectionRefImpl; 16 class ServiceContextRefImpl;
17 17
18 // An interface implementation can keep this object as a member variable to 18 // An interface implementation can keep this object as a member variable to
19 // hold a reference to the ShellConnection, keeping it alive as long as the 19 // hold a reference to the ServiceContext, keeping it alive as long as the
20 // bound implementation exists. 20 // bound implementation exists.
21 // 21 //
22 // This class is safe to use on any thread and instances may be passed to other 22 // This class is safe to use on any thread and instances may be passed to other
23 // threads. However, each instance should only be used on one thread at a time, 23 // threads. However, each instance should only be used on one thread at a time,
24 // otherwise there'll be races between the AddRef resulting from cloning and 24 // otherwise there'll be races between the AddRef resulting from cloning and
25 // destruction. 25 // destruction.
26 class ShellConnectionRef { 26 class ServiceContextRef {
27 public: 27 public:
28 virtual ~ShellConnectionRef() {} 28 virtual ~ServiceContextRef() {}
29 29
30 virtual std::unique_ptr<ShellConnectionRef> Clone() = 0; 30 virtual std::unique_ptr<ServiceContextRef> Clone() = 0;
31 }; 31 };
32 32
33 class ShellConnectionRefFactory { 33 class ServiceContextRefFactory {
34 public: 34 public:
35 // |quit_closure| is called whenever the last ref is destroyed. 35 // |quit_closure| is called whenever the last ref is destroyed.
36 explicit ShellConnectionRefFactory(const base::Closure& quit_closure); 36 explicit ServiceContextRefFactory(const base::Closure& quit_closure);
37 ~ShellConnectionRefFactory(); 37 ~ServiceContextRefFactory();
38 38
39 std::unique_ptr<ShellConnectionRef> CreateRef(); 39 std::unique_ptr<ServiceContextRef> CreateRef();
40 40
41 bool HasNoRefs() const { return !ref_count_; } 41 bool HasNoRefs() const { return !ref_count_; }
42 42
43 private: 43 private:
44 friend ShellConnectionRefImpl; 44 friend ServiceContextRefImpl;
45 45
46 // Called from ShellConnectionRefImpl. 46 // Called from ServiceContextRefImpl.
47 void AddRef(); 47 void AddRef();
48 void Release(); 48 void Release();
49 49
50 const base::Closure quit_closure_; 50 const base::Closure quit_closure_;
51 int ref_count_ = 0; 51 int ref_count_ = 0;
52 base::WeakPtrFactory<ShellConnectionRefFactory> weak_factory_; 52 base::WeakPtrFactory<ServiceContextRefFactory> weak_factory_;
53 53
54 DISALLOW_COPY_AND_ASSIGN(ShellConnectionRefFactory); 54 DISALLOW_COPY_AND_ASSIGN(ServiceContextRefFactory);
55 }; 55 };
56 56
57 } // namespace shell 57 } // namespace shell
58 58
59 #endif // SERVICES_SHELL_PUBLIC_CPP_SHELL_CONNECTION_REF_H_ 59 #endif // SERVICES_SHELL_PUBLIC_CPP_SERVICE_CONTEXT_REF_H_
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