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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // This file provides infrastructure for dispatching host resource call | 5 // This file provides infrastructure for dispatching host resource call |
6 // messages. Normal IPC message handlers can't take extra parameters or | 6 // messages. Normal IPC message handlers can't take extra parameters or |
7 // return values. We want to take a HostMessageContext as a parameter and | 7 // return values. We want to take a HostMessageContext as a parameter and |
8 // also return the int32_t return value to the caller. | 8 // also return the int32_t return value to the caller. |
9 | 9 |
10 #ifndef PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ | 10 #ifndef PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ |
11 #define PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ | 11 #define PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ |
12 | 12 |
13 #include "base/profiler/scoped_profile.h" | 13 #include "base/profiler/scoped_profile.h" |
14 #include "ipc/ipc_message_macros.h" | 14 #include "ipc/ipc_message_macros.h" |
15 #include "ppapi/c/pp_errors.h" | 15 #include "ppapi/c/pp_errors.h" |
16 | 16 |
17 namespace ppapi { | 17 namespace ppapi { |
18 namespace host { | 18 namespace host { |
19 | 19 |
20 struct HostMessageContext; | 20 struct HostMessageContext; |
21 | 21 |
22 template <class ObjT, class Method> | 22 template <class ObjT, class Method> |
23 inline int32_t DispatchResourceCall(ObjT* obj, Method method, | 23 inline int32_t DispatchResourceCall(ObjT* obj, Method method, |
24 HostMessageContext* context, | 24 HostMessageContext* context, |
25 Tuple<>& arg) { | 25 base::Tuple<>& arg) { |
26 return (obj->*method)(context); | 26 return (obj->*method)(context); |
27 } | 27 } |
28 | 28 |
29 template <class ObjT, class Method, class A> | 29 template <class ObjT, class Method, class A> |
30 inline int32_t DispatchResourceCall(ObjT* obj, Method method, | 30 inline int32_t DispatchResourceCall(ObjT* obj, Method method, |
31 HostMessageContext* context, | 31 HostMessageContext* context, |
32 Tuple<A>& arg) { | 32 base::Tuple<A>& arg) { |
33 return (obj->*method)(context, get<0>(arg)); | 33 return (obj->*method)(context, base::get<0>(arg)); |
34 } | 34 } |
35 | 35 |
36 template<class ObjT, class Method, class A, class B> | 36 template<class ObjT, class Method, class A, class B> |
37 inline int32_t DispatchResourceCall(ObjT* obj, Method method, | 37 inline int32_t DispatchResourceCall(ObjT* obj, Method method, |
38 HostMessageContext* context, | 38 HostMessageContext* context, |
39 Tuple<A, B>& arg) { | 39 base::Tuple<A, B>& arg) { |
40 return (obj->*method)(context, get<0>(arg), get<1>(arg)); | 40 return (obj->*method)(context, base::get<0>(arg), base::get<1>(arg)); |
41 } | 41 } |
42 | 42 |
43 template<class ObjT, class Method, class A, class B, class C> | 43 template<class ObjT, class Method, class A, class B, class C> |
44 inline int32_t DispatchResourceCall(ObjT* obj, Method method, | 44 inline int32_t DispatchResourceCall(ObjT* obj, Method method, |
45 HostMessageContext* context, | 45 HostMessageContext* context, |
46 Tuple<A, B, C>& arg) { | 46 base::Tuple<A, B, C>& arg) { |
47 return (obj->*method)(context, get<0>(arg), get<1>(arg), get<2>(arg)); | 47 return (obj->*method)(context, base::get<0>(arg), base::get<1>(arg), |
| 48 base::get<2>(arg)); |
48 } | 49 } |
49 | 50 |
50 template<class ObjT, class Method, class A, class B, class C, class D> | 51 template<class ObjT, class Method, class A, class B, class C, class D> |
51 inline int32_t DispatchResourceCall(ObjT* obj, Method method, | 52 inline int32_t DispatchResourceCall(ObjT* obj, Method method, |
52 HostMessageContext* context, | 53 HostMessageContext* context, |
53 Tuple<A, B, C, D>& arg) { | 54 base::Tuple<A, B, C, D>& arg) { |
54 return (obj->*method)(context, get<0>(arg), get<1>(arg), get<2>(arg), | 55 return (obj->*method)(context, base::get<0>(arg), base::get<1>(arg), |
55 get<3>(arg)); | 56 base::get<2>(arg), base::get<3>(arg)); |
56 } | 57 } |
57 | 58 |
58 template<class ObjT, class Method, class A, class B, class C, class D, class E> | 59 template<class ObjT, class Method, class A, class B, class C, class D, class E> |
59 inline int32_t DispatchResourceCall(ObjT* obj, Method method, | 60 inline int32_t DispatchResourceCall(ObjT* obj, Method method, |
60 HostMessageContext* context, | 61 HostMessageContext* context, |
61 Tuple<A, B, C, D, E>& arg) { | 62 base::Tuple<A, B, C, D, E>& arg) { |
62 return (obj->*method)(context, get<0>(arg), get<1>(arg), get<2>(arg), | 63 return (obj->*method)(context, base::get<0>(arg), base::get<1>(arg), |
63 get<3>(arg), get<4>(arg)); | 64 base::get<2>(arg), base::get<3>(arg), |
| 65 base::get<4>(arg)); |
64 } | 66 } |
65 | 67 |
66 // Note that this only works for message with 1 or more parameters. For | 68 // Note that this only works for message with 1 or more parameters. For |
67 // 0-parameter messages you need to use the _0 version below (since there are | 69 // 0-parameter messages you need to use the _0 version below (since there are |
68 // no params in the message). | 70 // no params in the message). |
69 #define PPAPI_DISPATCH_HOST_RESOURCE_CALL(msg_class, member_func) \ | 71 #define PPAPI_DISPATCH_HOST_RESOURCE_CALL(msg_class, member_func) \ |
70 case msg_class::ID: { \ | 72 case msg_class::ID: { \ |
71 TRACK_RUN_IN_THIS_SCOPED_REGION(member_func); \ | 73 TRACK_RUN_IN_THIS_SCOPED_REGION(member_func); \ |
72 msg_class::Schema::Param p; \ | 74 msg_class::Schema::Param p; \ |
73 if (msg_class::Read(&ipc_message__, &p)) { \ | 75 if (msg_class::Read(&ipc_message__, &p)) { \ |
74 return ppapi::host::DispatchResourceCall( \ | 76 return ppapi::host::DispatchResourceCall( \ |
75 this, \ | 77 this, \ |
76 &_IpcMessageHandlerClass::member_func, \ | 78 &_IpcMessageHandlerClass::member_func, \ |
77 context, p); \ | 79 context, p); \ |
78 } \ | 80 } \ |
79 return PP_ERROR_FAILED; \ | 81 return PP_ERROR_FAILED; \ |
80 } | 82 } |
81 | 83 |
82 #define PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(msg_class, member_func) \ | 84 #define PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(msg_class, member_func) \ |
83 case msg_class::ID: { \ | 85 case msg_class::ID: { \ |
84 TRACK_RUN_IN_THIS_SCOPED_REGION(member_func); \ | 86 TRACK_RUN_IN_THIS_SCOPED_REGION(member_func); \ |
85 return member_func(context); \ | 87 return member_func(context); \ |
86 } | 88 } |
87 | 89 |
88 } // namespace host | 90 } // namespace host |
89 } // namespace ppapi | 91 } // namespace ppapi |
90 | 92 |
91 #endif // PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ | 93 #endif // PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ |
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