1 // Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 |
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15 #include "serializedfunctioncall.h" |
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16 #include "remotefunctioncall.h" |
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17 |
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18 // ----------------------------------------------------------------------------- |
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19 // |
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20 // ----------------------------------------------------------------------------- |
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21 // |
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22 TInt SerializedFunctionCall::Write( TUint8* aDest, TInt& aDestIndex, const TInt aDestSize, |
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23 const TUint8* aSource, const TInt aSize, TInt& aSourceIndex, const TInt aOffset, TBool aVector ) |
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24 { |
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25 if ( aSourceIndex + aSize > aOffset ) |
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26 { |
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27 TInt32 offset(0); |
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28 TInt32 size( aSize ); |
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29 if ( aOffset - aSourceIndex > 0 ) |
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30 { |
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31 offset = aOffset - aSourceIndex; |
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32 size = aSize - offset; |
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33 } |
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34 |
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35 if ( aDestIndex + size >= aDestSize ) |
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36 { |
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37 size = aDestSize - aDestIndex; |
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38 } |
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39 |
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40 if ( aSource ) |
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41 { |
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42 if ( iDataCopier && aVector ) |
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43 { |
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44 iDataCopier->CopyVector( &aDest[aDestIndex], &aSource[offset], size ); |
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45 } |
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46 else if ( iDataCopier ) |
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47 { |
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48 iDataCopier->CopyData( &aDest[aDestIndex], &aSource[offset], size ); |
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49 } |
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50 else |
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51 { |
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52 RemoteFunctionCallData::CopyData( &aDest[aDestIndex], &aSource[offset], size ); |
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53 } |
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54 } |
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55 aSourceIndex += size; |
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56 aDestIndex += size; |
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57 } |
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58 else |
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59 { |
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60 aSourceIndex += aSize; |
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61 } |
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62 return aDestSize - aDestIndex; |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 TInt SerializedFunctionCall::WriteParam( const TUint8* aParam, const TInt aParamSize ) |
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70 { |
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71 ASSERT( aParam ); |
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72 |
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73 return Write( iWriteState.iBuffer, iWriteState.iDestIndex, iWriteState.iStreamMaxLength, |
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74 aParam, aParamSize, iWriteState.iSourceIndex, iWriteState.iOffset, 0 ); |
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75 } |
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76 |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 TInt SerializedFunctionCall::WriteVector( const TUint8* aParam, const TInt32 aDataTypeSize, const TInt aVectorSize, const TInt8 aDataTypeAlignment ) |
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82 { |
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83 ASSERT( aParam ); |
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84 iWriteState.iDestIndex = RemoteFunctionCallData::AlignIndex( iWriteState.iDestIndex, aDataTypeAlignment ); |
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85 return Write( iWriteState.iBuffer, iWriteState.iDestIndex, iWriteState.iStreamMaxLength, |
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86 aParam, aVectorSize*aDataTypeSize, iWriteState.iSourceIndex, iWriteState.iOffset, 1 ); |
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87 } |
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88 |
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89 // ----------------------------------------------------------------------------- |
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90 // |
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91 // ----------------------------------------------------------------------------- |
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92 // |
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93 TInt SerializedFunctionCall::ReadParam( TUint8* aParam, const TInt aParamSize ) |
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94 { |
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95 return Read( aParam, iReadState.iReadDestOffset, aParamSize, |
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96 iReadState.iReadBuffer, iReadState.iReadBufferIndex, iReadState.iReadBufferLength, 0 ); |
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97 } |
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98 |
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99 // ----------------------------------------------------------------------------- |
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100 // |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 TInt SerializedFunctionCall::ReadVectorParam( TUint8* aParam, |
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104 const TInt32 aDataTypeSize, const TInt aVectorSize, const TInt8 aDataTypeAlignment ) |
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105 { |
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106 iReadState.iReadBufferIndex = RemoteFunctionCallData::AlignIndex( iReadState.iReadBufferIndex, aDataTypeAlignment ); |
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107 return Read( aParam, iReadState.iReadDestOffset, aVectorSize*aDataTypeSize, |
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108 iReadState.iReadBuffer, iReadState.iReadBufferIndex, iReadState.iReadBufferLength, 1 ); |
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109 } |
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110 |
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111 // ----------------------------------------------------------------------------- |
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112 // |
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113 // ----------------------------------------------------------------------------- |
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114 // |
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115 TUint8* SerializedFunctionCall::ReadVectorPointer( |
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116 const TInt32 aDataTypeSize, const TInt aVectorSize, const TInt8 aDataTypeAlignment ) |
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117 { |
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118 iReadState.iReadBufferIndex = RemoteFunctionCallData::AlignIndex( iReadState.iReadBufferIndex, aDataTypeAlignment ); |
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119 TUint8* data = const_cast<TUint8*>(&iReadState.iReadBuffer[iReadState.iReadBufferIndex]); |
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120 iReadState.iReadBufferIndex += aVectorSize*aDataTypeSize; |
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121 iReadState.iReadDestOffset += 0; |
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122 return data; |
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123 } |
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124 |
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125 // ----------------------------------------------------------------------------- |
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126 // |
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127 // ----------------------------------------------------------------------------- |
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128 // |
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129 TInt SerializedFunctionCall::Read( TUint8* aDest, TInt& aDestIndex, const TInt aDestSize, |
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130 const TUint8* aSource, TInt& aSourceIndex, const TInt aSourceSize, TBool aVector ) |
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131 { |
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132 TInt ret(1); |
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133 TInt size = aDestSize - aDestIndex; |
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134 if ( aSourceIndex + size > aSourceSize ) |
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135 { |
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136 //Read buffer overflow |
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137 iError = EMoreData; |
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138 ret = 0; |
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139 size = aSourceSize - aSourceIndex; |
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140 } |
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141 |
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142 if ( iDataCopier && aVector ) |
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143 { |
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144 iDataCopier->CopyVector( &aDest[aDestIndex], &aSource[aSourceIndex], size ); |
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145 } |
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146 else if ( iDataCopier ) |
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147 { |
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148 iDataCopier->CopyData( &aDest[aDestIndex], &aSource[aSourceIndex], size ); |
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149 } |
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150 else |
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151 { |
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152 RemoteFunctionCallData::CopyData( &aDest[aDestIndex], &aSource[aSourceIndex], size ); |
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153 } |
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154 |
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155 aSourceIndex += size; |
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156 aDestIndex += size; |
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157 |
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158 if ( ret ) |
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159 { |
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160 aDestIndex = 0; |
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161 } |
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162 return ret; |
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163 } |
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164 |
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165 // ----------------------------------------------------------------------------- |
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166 // |
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167 // ----------------------------------------------------------------------------- |
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168 // |
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169 void SerializedFunctionCall::StartRead( const TUint8* aBuffer, const TInt aBufferLength ) |
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170 { |
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171 iReadState.iReadBuffer = aBuffer; |
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172 iReadState.iReadBufferIndex = 0; |
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173 iReadState.iReadBufferLength = aBufferLength; |
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174 iReadState.iParseState = EReadingApiUid; |
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175 iReadState.iReadDestOffset = 0; |
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176 iError = ESuccess; |
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177 } |
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178 |
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179 // ----------------------------------------------------------------------------- |
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180 // |
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181 // ----------------------------------------------------------------------------- |
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182 // |
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183 TInt SerializedFunctionCall::ReadHeaderFromBuffer( const TUint8* aBuffer, const TInt aBufferLength ) |
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184 { |
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185 iReadState.iParamsIndex = 0; |
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186 StartRead( aBuffer, aBufferLength ); |
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187 |
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188 if ( EReadingApiUid == iReadState.iParseState ) |
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189 { |
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190 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iApiUid, |
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191 sizeof(iRFC.HeaderData().iApiUid) ) ) |
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192 { |
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193 return 0; |
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194 } |
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195 iReadState.iParseState = EReadingOpCode; |
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196 } |
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197 |
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198 if ( EReadingOpCode == iReadState.iParseState ) |
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199 { |
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200 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iOpCode, |
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201 sizeof(iRFC.HeaderData().iOpCode) ) ) |
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202 { |
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203 return 0; |
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204 } |
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205 iReadState.iParseState = EReadingTransactionId; |
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206 } |
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207 |
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208 if ( iReadState.iParseState == EReadingTransactionId ) |
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209 { |
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210 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iTransactionId, |
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211 sizeof(iRFC.HeaderData().iTransactionId) ) ) |
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212 { |
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213 return 0; |
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214 } |
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215 iReadState.iParseState = EReadingParameterCount; |
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216 } |
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217 if ( iReadState.iParseState == EReadingParameterCount ) |
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218 { |
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219 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iParameterCount, |
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220 sizeof(iRFC.HeaderData().iParameterCount) ) ) |
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221 { |
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222 return 0; |
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223 } |
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224 iReadState.iParseState = EReadingProcessId; |
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225 } |
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226 if ( iReadState.iParseState == EReadingProcessId ) |
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227 { |
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228 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iProcessId, |
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229 sizeof(iRFC.HeaderData().iProcessId) ) ) |
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230 { |
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231 return 0; |
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232 } |
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233 iReadState.iParseState = EReadingThreadId; |
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234 } |
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235 if ( iReadState.iParseState == EReadingThreadId ) |
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236 { |
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237 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iThreadId, |
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238 sizeof(iRFC.HeaderData().iThreadId) ) ) |
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239 { |
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240 return 0; |
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241 } |
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242 iReadState.iParseState = EReadingOpType; |
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243 } |
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244 if ( iReadState.iParseState == EReadingOpType ) |
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245 { |
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246 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iOpType, |
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247 sizeof(iRFC.HeaderData().iOpType) ) ) |
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248 { |
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249 return 0; |
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250 } |
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251 iReadState.iParseState = EReadingReturnValue; |
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252 } |
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253 if ( iReadState.iParseState == EReadingReturnValue ) |
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254 { |
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255 if ( !ReadParam( (TUint8*)&iRFC.HeaderData().iReturnValue, |
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256 sizeof(iRFC.HeaderData().iReturnValue) ) ) |
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257 { |
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258 return 0; |
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259 } |
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260 iReadState.iParseState = EReadingParamDir; |
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261 } |
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262 |
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263 return 1; |
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264 } |
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265 |
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266 // ----------------------------------------------------------------------------- |
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267 // |
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268 // ----------------------------------------------------------------------------- |
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269 // |
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270 SER_EXPORT_C TInt SerializedFunctionCall::ParseBuffer( const TUint8* aBuffer, const TInt aBufferLength ) |
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271 { |
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272 StartRead( aBuffer, aBufferLength ); |
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273 if ( ReadHeaderFromBuffer( aBuffer, aBufferLength ) ) |
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274 { |
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275 for ( ;iReadState.iParamsIndex < iRFC.Header().iParameterCount; iReadState.iParamsIndex++ ) |
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276 { |
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277 RemoteFunctionCallData::TParam& param( iRFC.Parameters()[iReadState.iParamsIndex] ); |
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278 |
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279 ReadParam( (TUint8*)¶m.iDir, sizeof(param.iDir) ); |
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280 if ( ReadParam( (TUint8*)¶m.iType, sizeof(param.iType) ) ) |
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281 { |
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282 |
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283 if ( RemoteFunctionCallData::TParam::ESimple == param.iType ) |
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284 { |
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285 ReadParam( (TUint8*)¶m.iSimpleParam.iDataType, sizeof(param.iSimpleParam.iDataType) ); |
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286 ReadParam( (TUint8*)¶m.iSimpleParam.iDataTypeSize, sizeof(param.iSimpleParam.iDataTypeSize) ); |
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287 ReadParam( (TUint8*)¶m.iSimpleParam.iData, param.iSimpleParam.iDataTypeSize ); |
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288 } |
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289 else if ( RemoteFunctionCallData::TParam::EVector == param.iType ) |
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290 { |
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291 ReadParam( (TUint8*)¶m.iVectorParam.iDataType, sizeof(param.iVectorParam.iDataType) ); |
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292 ReadParam( (TUint8*)¶m.iVectorParam.iVectorLength, sizeof(param.iVectorParam.iVectorLength) ); |
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293 ReadParam( (TUint8*)¶m.iVectorParam.iCallerAddress, sizeof(param.iVectorParam.iCallerAddress) ); |
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294 ReadParam( (TUint8*)¶m.iVectorParam.iDataTypeSize, sizeof(param.iVectorParam.iDataTypeSize) ); |
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295 ReadParam( (TUint8*)¶m.iVectorParam.iDataTypeAlignment, sizeof(param.iVectorParam.iDataTypeAlignment) ); |
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296 |
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297 if ( !param.iVectorParam.iVectorLength ) |
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298 { |
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299 param.iVectorParam.iData = NULL; |
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300 param.iVectorParam.iCallerAddress = NULL; |
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301 } |
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302 else if ( (param.iDir & RemoteFunctionCallData::EIn) && ( RemoteFunctionCallData::EOpRequest == iRFC.Header().iOpType || RemoteFunctionCallData::EOpRequestWithReply == iRFC.Header().iOpType ) ) |
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303 { |
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304 param.iVectorParam.iData = ReadVectorPointer( param.iVectorParam.iDataTypeSize, param.iVectorParam.iVectorLength, param.iVectorParam.iDataTypeAlignment ); |
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305 } |
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306 else if ( (param.iDir & RemoteFunctionCallData::EOut) && iRFC.Header().iOpType == RemoteFunctionCallData::EOpReply ) |
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307 { |
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308 ReadVectorParam( (TUint8*)param.iVectorParam.iCallerAddress, |
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309 param.iVectorParam.iDataTypeSize, param.iVectorParam.iVectorLength, param.iVectorParam.iDataTypeAlignment ); |
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310 } |
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311 } |
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312 else |
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313 { |
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314 //Parse error |
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315 iError = EParseError; |
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316 return -1; |
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317 } |
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318 } |
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319 } |
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320 iReadState.iParseState = EReadingDone; |
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321 } |
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322 else |
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323 { |
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324 iError = EParseError; |
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325 return -1; |
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326 } |
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327 return iReadState.iReadBufferIndex; |
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328 } |
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329 |
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330 // ----------------------------------------------------------------------------- |
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331 // |
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332 // ----------------------------------------------------------------------------- |
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333 // |
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334 void SerializedFunctionCall::StartWrite( TUint8* aBuffer, const TInt aStreamMaxLength, TInt aOffset ) |
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335 { |
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336 iWriteState.iBuffer = aBuffer; |
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337 iWriteState.iDestIndex = 0; |
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338 iWriteState.iStreamMaxLength = aStreamMaxLength; |
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339 iWriteState.iSourceIndex = 0; |
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340 iWriteState.iOffset = aOffset; |
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341 iError = ESuccess; |
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342 } |
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343 |
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344 // ----------------------------------------------------------------------------- |
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345 // |
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346 // ----------------------------------------------------------------------------- |
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347 // |
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348 TInt SerializedFunctionCall::WriteHeaderToBuffer( TUint8* aBuffer, const TInt aStreamMaxLength, TInt aOffset ) |
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349 { |
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350 StartWrite( aBuffer, aStreamMaxLength, aOffset ); |
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351 if ( !WriteParam( (TUint8*)&iRFC.Header().iApiUid, |
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352 sizeof(iRFC.Header().iApiUid) ) ) |
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353 { |
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354 return iWriteState.iSourceIndex; |
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355 } |
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356 if ( !WriteParam( (TUint8*)&iRFC.Header().iOpCode, |
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357 sizeof(iRFC.Header().iOpCode) ) ) |
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358 { |
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359 return iWriteState.iSourceIndex; |
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360 } |
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361 if ( !WriteParam( (TUint8*)&iRFC.Header().iTransactionId, |
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362 sizeof(iRFC.Header().iTransactionId) ) ) |
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363 { |
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364 return iWriteState.iSourceIndex; |
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365 } |
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366 if ( !WriteParam( (TUint8*)&iRFC.Header().iParameterCount, |
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367 sizeof(iRFC.Header().iParameterCount) ) ) |
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368 { |
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369 return iWriteState.iSourceIndex; |
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370 } |
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371 if ( !WriteParam( (TUint8*)&iRFC.Header().iProcessId, |
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372 sizeof(iRFC.Header().iProcessId) ) ) |
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373 { |
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374 return iWriteState.iSourceIndex; |
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375 } |
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376 if ( !WriteParam( (TUint8*)&iRFC.Header().iThreadId, |
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377 sizeof(iRFC.Header().iThreadId) ) ) |
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378 { |
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379 return iWriteState.iSourceIndex; |
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380 } |
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381 if ( !WriteParam( (TUint8*)&iRFC.Header().iOpType, |
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382 sizeof(iRFC.Header().iOpType) ) ) |
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383 { |
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384 return iWriteState.iSourceIndex; |
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385 } |
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386 if ( !WriteParam( (TUint8*)&iRFC.Header().iReturnValue, |
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387 sizeof(iRFC.Header().iReturnValue) ) ) |
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388 { |
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389 return iWriteState.iSourceIndex; |
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390 } |
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391 return iWriteState.iSourceIndex; |
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392 } |
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393 |
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394 |
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395 // ----------------------------------------------------------------------------- |
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396 // |
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397 // ----------------------------------------------------------------------------- |
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398 // |
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399 SER_EXPORT_C TInt SerializedFunctionCall::WriteToBuffer( TUint8* aBuffer, const TInt aStreamMaxLength, TInt aOffset ) |
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400 { |
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401 WriteHeaderToBuffer( aBuffer, aStreamMaxLength, aOffset ); |
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402 for ( TInt i = 0; i < iRFC.Header().iParameterCount; i++ ) |
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403 { |
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404 const RemoteFunctionCallData::TParam& param( iRFC.Parameters()[i] ); |
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405 |
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406 if ( !WriteParam( (TUint8*)¶m.iDir, |
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407 sizeof(param.iDir) ) ) |
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408 { |
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409 break; |
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410 } |
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411 |
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412 if ( !WriteParam( (TUint8*)¶m.iType, |
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413 sizeof(param.iType) ) ) |
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414 { |
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415 break; |
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416 } |
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417 |
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418 if ( RemoteFunctionCallData::TParam::ESimple == param.iType ) |
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419 { |
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420 if ( !WriteParam( (TUint8*)¶m.iSimpleParam.iDataType, |
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421 sizeof(param.iSimpleParam.iDataType) ) ) |
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422 { |
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423 break; |
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424 } |
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425 if ( !WriteParam( (TUint8*)¶m.iSimpleParam.iDataTypeSize, |
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426 sizeof(param.iSimpleParam.iDataTypeSize) ) ) |
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427 { |
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428 break; |
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429 } |
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430 |
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431 if ( !WriteParam( (TUint8*)¶m.iSimpleParam.iData, param.iSimpleParam.iDataTypeSize ) ) |
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432 { |
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433 break; |
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434 } |
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435 } |
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436 else if ( RemoteFunctionCallData::TParam::EVector == param.iType ) |
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437 { |
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438 if ( !WriteParam( (TUint8*)¶m.iVectorParam.iDataType, sizeof(param.iVectorParam.iDataType) )) |
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439 { |
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440 break; |
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441 } |
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442 |
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443 if ( !WriteParam( (TUint8*)¶m.iVectorParam.iVectorLength, sizeof(param.iVectorParam.iVectorLength) )) |
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444 { |
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445 break; |
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446 } |
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447 |
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448 if ( !WriteParam( (TUint8*)¶m.iVectorParam.iCallerAddress, sizeof(param.iVectorParam.iCallerAddress) )) |
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449 { |
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450 break; |
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451 } |
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452 |
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453 if ( !WriteParam( (TUint8*)¶m.iVectorParam.iDataTypeSize, sizeof(param.iVectorParam.iDataTypeSize) )) |
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454 { |
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455 break; |
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456 } |
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457 |
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458 if ( !WriteParam( (TUint8*)¶m.iVectorParam.iDataTypeAlignment, sizeof(param.iVectorParam.iDataTypeAlignment) )) |
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459 { |
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460 break; |
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461 } |
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462 |
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463 if ( param.iVectorParam.iVectorLength && ( ( (param.iDir & RemoteFunctionCallData::EIn) && ( RemoteFunctionCallData::EOpRequestWithReply == iRFC.Header().iOpType || RemoteFunctionCallData::EOpRequest == iRFC.Header().iOpType ) ) || |
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464 ( (param.iDir & RemoteFunctionCallData::EOut) && iRFC.Header().iOpType == RemoteFunctionCallData::EOpReply ) ) ) |
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465 { |
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466 //Only serialise vector data if data is valid and the direction matches |
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467 if ( !WriteVector( param.iVectorParam.iData, param.iVectorParam.iDataTypeSize, param.iVectorParam.iVectorLength, param.iVectorParam.iDataTypeAlignment ) ) |
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468 { |
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469 break; |
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470 } |
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471 } |
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472 } |
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473 } |
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474 |
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475 return iWriteState.iDestIndex; |
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476 } |
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477 |
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478 // ----------------------------------------------------------------------------- |
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479 // |
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480 // ----------------------------------------------------------------------------- |
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481 // |
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482 SER_EXPORT_C void SerializedFunctionCall::SetDataCopier( MDataCopier* aDataCopier ) |
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483 { |
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484 iDataCopier = aDataCopier; |
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485 } |
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486 |
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487 // ----------------------------------------------------------------------------- |
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488 // |
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489 // ----------------------------------------------------------------------------- |
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490 // |
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491 SER_EXPORT_C SerializedFunctionCall::SerializedFunctionCall( RemoteFunctionCallData& aRFC, MDataCopier* aDataCopier ): |
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492 iRFC( aRFC ), |
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493 iDataCopier( aDataCopier ) |
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494 { |
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495 } |
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