| OLD | NEW |
| (Empty) |
| 1 /* | |
| 2 * Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 3 * Use of this source code is governed by a BSD-style license that can be | |
| 4 * found in the LICENSE file. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include "ppapi/native_client/src/trusted/plugin/srpc_params.h" | |
| 9 | |
| 10 #include <stdlib.h> | |
| 11 | |
| 12 #include "native_client/src/shared/srpc/nacl_srpc.h" | |
| 13 | |
| 14 | |
| 15 namespace plugin { | |
| 16 | |
| 17 namespace { | |
| 18 | |
| 19 bool FillVec(NaClSrpcArg* vec[], const char* types) { | |
| 20 const size_t kLength = strlen(types); | |
| 21 if (kLength > NACL_SRPC_MAX_ARGS) { | |
| 22 return false; | |
| 23 } | |
| 24 // We use malloc/new here rather than new/delete, because the SRPC layer | |
| 25 // is written in C and hence will use malloc/free. | |
| 26 // This array will get deallocated by FreeArguments(). | |
| 27 if (kLength > 0) { | |
| 28 NaClSrpcArg* args = | |
| 29 reinterpret_cast<NaClSrpcArg*>(malloc(kLength * sizeof(*args))); | |
| 30 if (NULL == args) { | |
| 31 return false; | |
| 32 } | |
| 33 | |
| 34 memset(static_cast<void*>(args), 0, kLength * sizeof(*args)); | |
| 35 for (size_t i = 0; i < kLength; ++i) { | |
| 36 vec[i] = &args[i]; | |
| 37 args[i].tag = static_cast<NaClSrpcArgType>(types[i]); | |
| 38 } | |
| 39 } | |
| 40 vec[kLength] = NULL; | |
| 41 return true; | |
| 42 } | |
| 43 | |
| 44 void FreeSrpcArg(NaClSrpcArg* arg) { | |
| 45 switch (arg->tag) { | |
| 46 case NACL_SRPC_ARG_TYPE_CHAR_ARRAY: | |
| 47 free(arg->arrays.carr); | |
| 48 break; | |
| 49 case NACL_SRPC_ARG_TYPE_DOUBLE_ARRAY: | |
| 50 free(arg->arrays.darr); | |
| 51 break; | |
| 52 case NACL_SRPC_ARG_TYPE_HANDLE: | |
| 53 break; | |
| 54 case NACL_SRPC_ARG_TYPE_INT_ARRAY: | |
| 55 free(arg->arrays.iarr); | |
| 56 break; | |
| 57 case NACL_SRPC_ARG_TYPE_LONG_ARRAY: | |
| 58 free(arg->arrays.larr); | |
| 59 break; | |
| 60 case NACL_SRPC_ARG_TYPE_STRING: | |
| 61 // All strings that are passed in SrpcArg must be allocated using | |
| 62 // malloc! We cannot use browser's allocation API | |
| 63 // since some of SRPC arguments is handled outside of the plugin code. | |
| 64 free(arg->arrays.str); | |
| 65 break; | |
| 66 case NACL_SRPC_ARG_TYPE_VARIANT_ARRAY: | |
| 67 if (arg->arrays.varr) { | |
| 68 for (uint32_t i = 0; i < arg->u.count; i++) { | |
| 69 FreeSrpcArg(&arg->arrays.varr[i]); | |
| 70 } | |
| 71 } | |
| 72 break; | |
| 73 case NACL_SRPC_ARG_TYPE_OBJECT: | |
| 74 // This is a pointer to a scriptable object and should be released | |
| 75 // by the browser | |
| 76 break; | |
| 77 case NACL_SRPC_ARG_TYPE_BOOL: | |
| 78 case NACL_SRPC_ARG_TYPE_DOUBLE: | |
| 79 case NACL_SRPC_ARG_TYPE_INT: | |
| 80 case NACL_SRPC_ARG_TYPE_LONG: | |
| 81 case NACL_SRPC_ARG_TYPE_INVALID: | |
| 82 default: | |
| 83 break; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 void FreeArguments(NaClSrpcArg* vec[]) { | |
| 88 if (NULL == vec[0]) { | |
| 89 return; | |
| 90 } | |
| 91 for (NaClSrpcArg** argp = vec; *argp; ++argp) { | |
| 92 FreeSrpcArg(*argp); | |
| 93 } | |
| 94 // Free the vector containing the arguments themselves that was | |
| 95 // allocated with FillVec(). | |
| 96 free(vec[0]); | |
| 97 } | |
| 98 | |
| 99 } // namespace | |
| 100 | |
| 101 bool SrpcParams::Init(const char* in_types, const char* out_types) { | |
| 102 if (!FillVec(ins_, in_types)) { | |
| 103 return false; | |
| 104 } | |
| 105 if (!FillVec(outs_, out_types)) { | |
| 106 FreeArguments(ins_); | |
| 107 return false; | |
| 108 } | |
| 109 return true; | |
| 110 } | |
| 111 | |
| 112 void SrpcParams::FreeAll() { | |
| 113 FreeArguments(ins_); | |
| 114 FreeArguments(outs_); | |
| 115 memset(ins_, 0, sizeof(ins_)); | |
| 116 memset(outs_, 0, sizeof(outs_)); | |
| 117 } | |
| 118 | |
| 119 } // namespace plugin | |
| OLD | NEW |