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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 PPAPI_PROXY_HOST_DISPATCHER_H_ | 5 #ifndef PPAPI_PROXY_HOST_DISPATCHER_H_ |
6 #define PPAPI_PROXY_HOST_DISPATCHER_H_ | 6 #define PPAPI_PROXY_HOST_DISPATCHER_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 #include <vector> | 10 #include <vector> |
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25 namespace IPC { | 25 namespace IPC { |
26 class SyncChannel; | 26 class SyncChannel; |
27 } | 27 } |
28 | 28 |
29 namespace ppapi { | 29 namespace ppapi { |
30 | 30 |
31 struct Preferences; | 31 struct Preferences; |
32 | 32 |
33 namespace proxy { | 33 namespace proxy { |
34 | 34 |
35 class InterfaceProxy; | |
36 class VarSerialization; | 35 class VarSerialization; |
37 | 36 |
38 class PPAPI_PROXY_EXPORT HostDispatcher : public Dispatcher { | 37 class PPAPI_PROXY_EXPORT HostDispatcher : public Dispatcher { |
39 public: | 38 public: |
40 // Constructor for the renderer side. | 39 // Constructor for the renderer side. |
41 // | 40 // |
42 // You must call InitHostWithChannel after the constructor. | 41 // You must call InitHostWithChannel after the constructor. |
43 HostDispatcher(base::ProcessHandle host_process_handle, | 42 HostDispatcher(base::ProcessHandle host_process_handle, |
44 PP_Module module, | 43 PP_Module module, |
45 GetInterfaceFunc local_get_interface); | 44 GetInterfaceFunc local_get_interface); |
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73 virtual bool Send(IPC::Message* msg); | 72 virtual bool Send(IPC::Message* msg); |
74 | 73 |
75 // IPC::Channel::Listener. | 74 // IPC::Channel::Listener. |
76 virtual bool OnMessageReceived(const IPC::Message& msg); | 75 virtual bool OnMessageReceived(const IPC::Message& msg); |
77 virtual void OnChannelError(); | 76 virtual void OnChannelError(); |
78 | 77 |
79 // Proxied version of calling GetInterface on the plugin. This will check | 78 // Proxied version of calling GetInterface on the plugin. This will check |
80 // if the plugin supports the given interface (with caching) and returns the | 79 // if the plugin supports the given interface (with caching) and returns the |
81 // pointer to the proxied interface if it is supported. Returns NULL if the | 80 // pointer to the proxied interface if it is supported. Returns NULL if the |
82 // given interface isn't supported by the plugin or the proxy. | 81 // given interface isn't supported by the plugin or the proxy. |
83 const void* GetProxiedInterface(const std::string& proxied_interface); | 82 const void* GetProxiedInterface(const std::string& iface_name); |
84 | |
85 // Returns the proxy object associated with the given interface ID, creating | |
86 // it if necessary. This is used in cases where a proxy needs to access code | |
87 // in the proxy for another interface. It's assumed that the interface always | |
88 // exists, so this is only used for browser proxies. | |
89 // | |
90 // Will return NULL if an interface isn't supported. | |
91 InterfaceProxy* GetOrCreatePPBInterfaceProxy(InterfaceID id); | |
92 | 83 |
93 // See the value below. Call this when processing a scripting message from | 84 // See the value below. Call this when processing a scripting message from |
94 // the plugin that can be reentered. | 85 // the plugin that can be reentered. This is set to false at the beginning |
| 86 // of processing of each message from the plugin. |
95 void set_allow_plugin_reentrancy() { | 87 void set_allow_plugin_reentrancy() { |
96 allow_plugin_reentrancy_ = true; | 88 allow_plugin_reentrancy_ = true; |
97 } | 89 } |
98 | 90 |
99 // Returns the proxy interface for talking to the implementation. | 91 // Returns the proxy interface for talking to the implementation. |
100 const PPB_Proxy_Private* ppb_proxy() const { return ppb_proxy_; } | 92 const PPB_Proxy_Private* ppb_proxy() const { return ppb_proxy_; } |
101 | 93 |
| 94 protected: |
| 95 // Overridden from Dispatcher. |
| 96 virtual void OnInvalidMessageReceived(); |
| 97 |
102 private: | 98 private: |
103 friend class HostDispatcherTest; | |
104 | |
105 // Makes an instance of the given PPB interface proxy, storing it in the | |
106 // target_proxies_ array. An proxy for this interface must not exist yet. | |
107 InterfaceProxy* CreatePPBInterfaceProxy(const InterfaceProxy::Info* info); | |
108 | |
109 PP_Module pp_module_; | 99 PP_Module pp_module_; |
110 | 100 |
111 typedef std::map<std::string, bool> PluginIFSupportedMap; | |
112 // Maps interface name to whether that interface is supported. If an interface | 101 // Maps interface name to whether that interface is supported. If an interface |
113 // name is not in the map, that implies that we haven't queried for it yet. | 102 // name is not in the map, that implies that we haven't queried for it yet. |
114 std::map<std::string, bool> plugin_if_supported_; | 103 typedef base::hash_map<std::string, bool> PluginSupportedMap; |
115 | 104 PluginSupportedMap plugin_supported_; |
116 // All target proxies currently created. These are ones that receive | |
117 // messages. They are created on demand when we receive messages. | |
118 scoped_ptr<InterfaceProxy> target_proxies_[INTERFACE_ID_COUNT]; | |
119 | |
120 // Function proxies created for "new-style" FunctionGroups. | |
121 // TODO(brettw) this is in progress. It should be merged with the target | |
122 // proxies so there is one list to consult. | |
123 scoped_ptr<FunctionGroupBase> function_proxies_[INTERFACE_ID_COUNT]; | |
124 | 105 |
125 // Guaranteed non-NULL. | 106 // Guaranteed non-NULL. |
126 const PPB_Proxy_Private* ppb_proxy_; | 107 const PPB_Proxy_Private* ppb_proxy_; |
127 | 108 |
128 // Set to true when the plugin is in a state that it can be reentered by a | 109 // Set to true when the plugin is in a state that it can be reentered by a |
129 // sync message from the host. We allow reentrancy only when we're processing | 110 // sync message from the host. We allow reentrancy only when we're processing |
130 // a sync message from the renderer that is a scripting command. When the | 111 // a sync message from the renderer that is a scripting command. When the |
131 // plugin is in this state, it needs to accept reentrancy since scripting may | 112 // plugin is in this state, it needs to accept reentrancy since scripting may |
132 // ultimately call back into the plugin. | 113 // ultimately call back into the plugin. |
133 bool allow_plugin_reentrancy_; | 114 bool allow_plugin_reentrancy_; |
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149 private: | 130 private: |
150 HostDispatcher* dispatcher_; | 131 HostDispatcher* dispatcher_; |
151 | 132 |
152 DISALLOW_COPY_AND_ASSIGN(ScopedModuleReference); | 133 DISALLOW_COPY_AND_ASSIGN(ScopedModuleReference); |
153 }; | 134 }; |
154 | 135 |
155 } // namespace proxy | 136 } // namespace proxy |
156 } // namespace ppapi | 137 } // namespace ppapi |
157 | 138 |
158 #endif // PPAPI_PROXY_HOST_DISPATCHER_H_ | 139 #endif // PPAPI_PROXY_HOST_DISPATCHER_H_ |
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