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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 #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_SRPC_LIB_H_ | |
6 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_SRPC_LIB_H_ | |
7 | |
8 // Routines to simplify SRPC invocations. | |
9 | |
10 #include <stdarg.h> | |
11 #include "native_client/src/include/nacl_macros.h" | |
12 #include "native_client/src/include/nacl_string.h" | |
13 #include "native_client/src/include/portability.h" | |
14 | |
15 namespace plugin { | |
16 | |
17 class BrowserInterface; | |
18 class NaClSubprocess; | |
19 class SrpcParams; | |
20 | |
21 // TODO(jvoung): See if anything can be shared between this and | |
22 // src/shared/srpc/invoke.c | |
23 | |
24 // This is just a namespace to collect methods for setting up and invoking | |
25 // SPRC methods against a NaClSubprocess. | |
26 class PnaclSrpcLib { | |
27 public: | |
28 // Invoke an Srpc Method on the NaCl subprocess |subprocess|. | |
29 // |out_params| must be allocated and cleaned up outside of this function, | |
30 // but it will be initialized by this function, and on success | |
31 // any out-params (if any) will be placed in |out_params|. | |
32 // Input types must be listed in |input_signature|, with the actual | |
33 // arguments passed in as var-args. | |
34 // Returns |true| on success. | |
35 static bool InvokeSrpcMethod(BrowserInterface* browser_interface, | |
36 const NaClSubprocess* subprocess, | |
37 const nacl::string& method_name, | |
38 const nacl::string& input_signature, | |
39 SrpcParams* out_params, | |
40 ...); | |
41 | |
42 private: | |
43 NACL_DISALLOW_COPY_AND_ASSIGN(PnaclSrpcLib); | |
44 | |
45 static bool SetupSrpcInvocation(BrowserInterface* browser_interface, | |
46 const NaClSubprocess* subprocess, | |
47 const nacl::string& method_name, | |
48 SrpcParams* params, | |
49 uintptr_t* kMethodIdent); | |
50 | |
51 static bool VInvokeSrpcMethod(BrowserInterface* browser_interface, | |
52 const NaClSubprocess* subprocess, | |
53 const nacl::string& method_name, | |
54 const nacl::string& signature, | |
55 SrpcParams* params, | |
56 va_list vl); | |
57 }; | |
58 | |
59 } // namespace plugin; | |
60 | |
61 #endif // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_SRPC_LIB_H_ | |
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