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Side by Side Diff: src/trusted/plugin/nacl_subprocess.h

Issue 7799028: Remove src/trusted/plugin (Closed) Base URL: svn://svn.chromium.org/native_client/trunk/src/native_client
Patch Set: fix gyp file for necessary -I Created 9 years, 3 months ago
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1 // Copyright (c) 2011 The Native Client 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 // Instances of NaCl modules spun up within the plugin as a subprocess.
6 // This may represent the "main" nacl module, or it may represent helpers
7 // that perform various tasks within the plugin, for example,
8 // a NaCl module for a compiler could be loaded to translate LLVM bitcode
9 // into native code.
10
11 #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_NACL_SUBPROCESS_H_
12 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_NACL_SUBPROCESS_H_
13
14 #include "native_client/src/include/nacl_string.h"
15 #include "native_client/src/trusted/plugin/service_runtime.h"
16 #include "native_client/src/trusted/plugin/srpc_client.h"
17
18 namespace plugin {
19
20 class Plugin;
21 class ServiceRuntime;
22
23 // Identifier for helper NaCl nexes. Should be non-negative for valid nexes.
24 typedef int32_t NaClSubprocessId;
25 const NaClSubprocessId kInvalidNaClSubprocessId = -1;
26 const NaClSubprocessId kMainSubprocessId = -2;
27
28 // A class representing an instance of a NaCl module, loaded by the plugin.
29 class NaClSubprocess {
30 public:
31 NaClSubprocess(NaClSubprocessId assigned_id,
32 ServiceRuntime* service_runtime,
33 SrpcClient* srpc_client)
34 : assigned_id_(assigned_id),
35 service_runtime_(service_runtime),
36 srpc_client_(srpc_client) {
37 }
38 virtual ~NaClSubprocess();
39
40 ServiceRuntime* service_runtime() const { return service_runtime_.get(); }
41 void set_service_runtime(ServiceRuntime* service_runtime) {
42 service_runtime_.reset(service_runtime);
43 }
44
45 // The socket used for communicating w/ the NaCl module.
46 SrpcClient* srpc_client() const { return srpc_client_.get(); }
47 void set_socket(SrpcClient* srpc_client) { srpc_client_.reset(srpc_client); }
48
49 // A basic description of the subprocess.
50 nacl::string description() const;
51
52 // A detailed description of the subprocess that may contain addresses.
53 // Only use for debugging, but do not expose this to untrusted webapps.
54 nacl::string detailed_description() const;
55
56 // Start up interfaces.
57 bool StartSrpcServices();
58 bool StartJSObjectProxy(Plugin* plugin, ErrorInfo* error_info);
59
60 // Interact.
61 bool HasMethod(uintptr_t method_id) const;
62 bool InitParams(uintptr_t method_id, SrpcParams* params) const;
63 bool Invoke(uintptr_t method_id, SrpcParams* params) const;
64
65 // Fully shut down the subprocess.
66 void Shutdown();
67
68 private:
69 NACL_DISALLOW_COPY_AND_ASSIGN(NaClSubprocess);
70
71 NaClSubprocessId assigned_id_;
72
73 // The service runtime representing the NaCl module instance.
74 nacl::scoped_ptr<ServiceRuntime> service_runtime_;
75
76 // Ownership of srpc_client taken from the service runtime.
77 nacl::scoped_ptr<SrpcClient> srpc_client_;
78 };
79
80 } // namespace plugin
81
82 #endif // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_NACL_SUBPROCESS_H_
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