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1 // Copyright (c) 2008-2009 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 the License "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 // e32test\system\t_atomic.h |
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15 // |
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16 // |
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17 |
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18 #include <e32atomics.h> |
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19 |
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20 #ifdef __VC32__ |
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21 #pragma warning( disable : 4244 ) /* conversion to shorter type - possible loss of data */ |
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22 #endif |
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23 |
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24 const TInt KMaxThreads = 8; |
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25 |
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26 #ifdef __KERNEL_MODE__ |
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27 #include <kernel/kernel.h> |
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28 #undef DEBUGPRINT |
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29 #define DEBUGPRINT Kern::Printf |
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30 #else |
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31 extern void UPrintf(const char*, ...); |
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32 #undef DEBUGPRINT |
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33 #define DEBUGPRINT UPrintf |
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34 #endif |
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35 |
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36 #undef __INT64_ALIGNED__ |
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37 #if (defined(__GNUC__) && (__GNUC__ >= 3)) || defined(__EABI__) |
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38 #define __INT64_ALIGNED__ |
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39 #endif |
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40 |
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41 #ifdef __INT64_ALIGNED__ |
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42 typedef TUint64 TUint64A; |
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43 typedef TInt64 TInt64A; |
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44 #else |
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45 |
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46 class TUint64A |
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47 { |
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48 public: |
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49 inline const TUint64* operator&() const |
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50 { return ((const TUint64*)((T_UintPtr(this)+7)&~7)); } |
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51 inline TUint64* operator&() |
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52 { return ((TUint64*)((T_UintPtr(this)+7)&~7)); } |
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53 private: |
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54 TUint64 i_Data[2]; |
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55 }; |
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56 |
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57 class TInt64A |
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58 { |
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59 public: |
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60 inline const TInt64* operator&() const |
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61 { return ((const TInt64*)((T_UintPtr(this)+7)&~7)); } |
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62 inline TInt64* operator&() |
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63 { return ((TInt64*)((T_UintPtr(this)+7)&~7)); } |
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64 private: |
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65 TUint64 i_Data[2]; |
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66 }; |
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67 |
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68 #endif |
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69 |
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70 struct TDGBase |
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71 { |
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72 TInt Execute(); |
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73 void Dump(const char*); |
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74 |
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75 TUint64 i0; |
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76 TUint64 i1; |
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77 TUint64 i2; |
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78 TUint64 i3; |
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79 TInt iIndex; |
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80 }; |
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81 |
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82 struct TAtomicAction |
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83 { |
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84 TUint64 i0; // first parameter to operation |
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85 TUint64 i1; // second parameter to operation |
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86 TUint64 i2; // third parameter to operation |
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87 TInt iIndex; // index of atomic function |
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88 TInt iThread; // thread identifier |
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89 }; |
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90 |
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91 struct TPerThread |
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92 { |
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93 TUint64 iDiff; // accumulated difference |
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94 TUint64 iXor; // accumulated XOR |
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95 TUint64 iFailCount; // failure count for CAS operations |
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96 TUint64 iCount; // iteration count |
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97 }; |
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98 |
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99 extern "C" TInt DoAtomicAction(TAny* aPtr, TPerThread* aT, TAtomicAction& aA); |
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100 |
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101 enum TMemoryOrder |
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102 { |
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103 EOrderRelaxed=0, |
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104 EOrderAcquire=1, |
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105 EOrderRelease=2, |
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106 EOrderOrdered=3, |
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107 }; |
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108 |
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109 enum TAtomicFunc |
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110 { |
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111 EAtomicFuncLOAD=0, |
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112 EAtomicFuncSTORE=1, |
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113 EAtomicFuncSWP=2, |
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114 EAtomicFuncADD=3, |
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115 EAtomicFuncAND=4, |
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116 EAtomicFuncIOR=5, |
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117 EAtomicFuncXOR=6, |
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118 EAtomicFuncAXO=7, |
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119 EAtomicFuncTAU=8, |
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120 EAtomicFuncTAS=9, |
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121 EAtomicFuncCAS=10, |
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122 EAtomicFuncN |
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123 }; |
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124 |
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125 enum TFuncType |
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126 { |
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127 EFuncTypeInvalid=0, |
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128 EFuncTypeLoad=1, |
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129 EFuncTypeRmw1=2, |
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130 EFuncTypeRmw2=3, |
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131 EFuncTypeRmw3=4, |
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132 EFuncTypeCas=5, |
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133 }; |
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134 |
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135 #define FUNCS_PER_SIZE (TUint(EAtomicFuncN)*4) |
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136 #define TOTAL_FUNCS (FUNCS_PER_SIZE*4) |
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137 #define INDEXES_PER_SIZE (16*4) |
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138 #define TOTAL_INDEXES (INDEXES_PER_SIZE*4) |
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139 |
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140 #define FUNCATTR(func,size,ord,type) ((TUint(func)<<24)|(TUint(size)<<16)|(TUint(ord)<<8)|(TUint(type))) |
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141 #define ATTR_TO_TYPE(attr) ((attr)&0xff) |
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142 #define ATTR_TO_ORD(attr) (((attr)>>8)&0xff) |
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143 #define ATTR_TO_SIZE(attr) (((attr)>>16)&0xff) |
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144 #define ATTR_TO_FUNC(attr) (((attr)>>24)&0xff) |
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145 #define FUNCATTR2(func,size,type) \ |
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146 FUNCATTR(func,size,EOrderRelaxed,type), FUNCATTR(func,size,EOrderAcquire,type), FUNCATTR(func,size,EOrderRelease,type), FUNCATTR(func,size,EOrderOrdered,type) |
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147 #define FUNCATTR2A(func,size,type) \ |
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148 0, FUNCATTR(func,size,EOrderAcquire,type), 0, 0 |
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149 #define FUNCATTR2B(func,size,type) \ |
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150 0, 0, FUNCATTR(func,size,EOrderRelease,type), FUNCATTR(func,size,EOrderOrdered,type) |
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151 #define FUNCATTR3(size) \ |
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152 FUNCATTR2A(EAtomicFuncLOAD,size,EFuncTypeLoad), \ |
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153 FUNCATTR2B(EAtomicFuncSTORE,size,EFuncTypeRmw1), \ |
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154 FUNCATTR2(EAtomicFuncSWP,size,EFuncTypeRmw1), \ |
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155 FUNCATTR2(EAtomicFuncADD,size,EFuncTypeRmw1), \ |
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156 FUNCATTR2(EAtomicFuncAND,size,EFuncTypeRmw1), \ |
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157 FUNCATTR2(EAtomicFuncIOR,size,EFuncTypeRmw1), \ |
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158 FUNCATTR2(EAtomicFuncXOR,size,EFuncTypeRmw1), \ |
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159 FUNCATTR2(EAtomicFuncAXO,size,EFuncTypeRmw2), \ |
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160 FUNCATTR2(EAtomicFuncTAU,size,EFuncTypeRmw3), \ |
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161 FUNCATTR2(EAtomicFuncTAS,size,EFuncTypeRmw3), \ |
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162 FUNCATTR2(EAtomicFuncCAS,size,EFuncTypeCas), \ |
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163 0, 0, 0, 0, \ |
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164 0, 0, 0, 0, \ |
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165 0, 0, 0, 0, \ |
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166 0, 0, 0, 0, \ |
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167 0, 0, 0, 0 |
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168 |
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169 |
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170 #define __DO_STRINGIFY__(x) #x |
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171 #define __STRINGIFY__(x) __DO_STRINGIFY__(x) |
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172 #define __concat3__(a,b,c) a##b##c |
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173 #define __concat5__(a,b,c,d,e) a##b##c##d##e |
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174 #define FUNCNAME(func,size,ord) __STRINGIFY__(__concat3__(func,size,ord)) |
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175 #define ATOMICFUNC(func,size,ord) __concat5__(__e32_atomic_,func,_,ord,size) |
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176 #define CONTROLFUNC(func,size,ord) __concat3__(__nonatomic_,func,size) |
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177 #define FUNCNAME2(func,size) FUNCNAME(func,size,rlx), FUNCNAME(func,size,acq), FUNCNAME(func,size,rel), FUNCNAME(func,size,ord) |
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178 #define FUNCNAME3(size) \ |
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179 FUNCNAME2(load,size), \ |
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180 FUNCNAME2(store,size), \ |
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181 FUNCNAME2(swp,size), \ |
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182 FUNCNAME2(add,size), \ |
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183 FUNCNAME2(and,size), \ |
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184 FUNCNAME2(ior,size), \ |
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185 FUNCNAME2(xor,size), \ |
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186 FUNCNAME2(axo,size), \ |
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187 FUNCNAME2(tau,size), \ |
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188 FUNCNAME2(tas,size), \ |
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189 FUNCNAME2(cas,size), \ |
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190 "", "", "", "", \ |
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191 "", "", "", "", \ |
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192 "", "", "", "", \ |
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193 "", "", "", "", \ |
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194 "", "", "", "" |
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195 |
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196 |
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197 #define ATOMICFUNC2(func,size) (PFV)&ATOMICFUNC(func,size,rlx), (PFV)&ATOMICFUNC(func,size,acq), (PFV)&ATOMICFUNC(func,size,rel), (PFV)&ATOMICFUNC(func,size,ord) |
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198 #define ATOMICFUNC2A(func,size) 0, (PFV)&ATOMICFUNC(func,size,acq), 0, 0 |
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199 #define ATOMICFUNC2B(func,size) 0, 0, (PFV)&ATOMICFUNC(func,size,rel), (PFV)&ATOMICFUNC(func,size,ord) |
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200 #define ATOMICFUNC3(size) \ |
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201 ATOMICFUNC2A(load,size), \ |
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202 ATOMICFUNC2B(store,size), \ |
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203 ATOMICFUNC2(swp,size), \ |
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204 ATOMICFUNC2(add,size), \ |
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205 ATOMICFUNC2(and,size), \ |
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206 ATOMICFUNC2(ior,size), \ |
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207 ATOMICFUNC2(xor,size), \ |
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208 ATOMICFUNC2(axo,size), \ |
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209 ATOMICFUNC2(tau,size), \ |
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210 ATOMICFUNC2(tas,size), \ |
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211 ATOMICFUNC2(cas,size), \ |
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212 0, 0, 0, 0, \ |
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213 0, 0, 0, 0, \ |
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214 0, 0, 0, 0, \ |
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215 0, 0, 0, 0, \ |
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216 0, 0, 0, 0 |
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217 |
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218 |
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219 #define CONTROLFUNC2(func,size) (PFV)&CONTROLFUNC(func,size,rlx), (PFV)&CONTROLFUNC(func,size,acq), (PFV)&CONTROLFUNC(func,size,rel), (PFV)&CONTROLFUNC(func,size,ord) |
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220 #define CONTROLFUNC2A(func,size) 0, (PFV)&CONTROLFUNC(func,size,acq), 0, 0 |
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221 #define CONTROLFUNC2B(func,size) 0, 0, (PFV)&CONTROLFUNC(func,size,rel), (PFV)&CONTROLFUNC(func,size,ord) |
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222 #define CONTROLFUNC3(size) \ |
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223 CONTROLFUNC2A(load,size), \ |
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224 CONTROLFUNC2B(store,size), \ |
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225 CONTROLFUNC2(swp,size), \ |
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226 CONTROLFUNC2(add,size), \ |
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227 CONTROLFUNC2(and,size), \ |
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228 CONTROLFUNC2(ior,size), \ |
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229 CONTROLFUNC2(xor,size), \ |
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230 CONTROLFUNC2(axo,size), \ |
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231 CONTROLFUNC2(tau,size), \ |
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232 CONTROLFUNC2(tas,size), \ |
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233 CONTROLFUNC2(cas,size), \ |
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234 0, 0, 0, 0, \ |
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235 0, 0, 0, 0, \ |
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236 0, 0, 0, 0, \ |
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237 0, 0, 0, 0, \ |
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238 0, 0, 0, 0 |
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239 |
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240 |
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241 #ifdef __INCLUDE_FUNC_NAMES__ |
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242 extern "C" const char* FuncName[] = |
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243 { |
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244 FUNCNAME3(8), |
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245 FUNCNAME3(16), |
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246 FUNCNAME3(32), |
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247 FUNCNAME3(64) |
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248 }; |
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249 #endif |
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250 |
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251 typedef void (*PFV)(); |
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252 |
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253 #ifdef __INCLUDE_ATOMIC_FUNCTIONS__ |
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254 extern "C" const PFV AtomicFuncPtr[] = |
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255 { |
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256 ATOMICFUNC3(8), |
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257 ATOMICFUNC3(16), |
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258 ATOMICFUNC3(32), |
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259 ATOMICFUNC3(64) |
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260 }; |
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261 #endif |
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262 |
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263 #ifdef __INCLUDE_CONTROL_FUNCTIONS__ |
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264 extern "C" { |
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265 |
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266 // Simulated versions of atomic functions without the atomicity |
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267 extern TUint8 __nonatomic_load8(const volatile TAny* a); |
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268 extern TUint8 __nonatomic_store8(volatile TAny* a, TUint8 v); |
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269 extern TUint8 __nonatomic_swp8(volatile TAny* a, TUint8 v); |
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270 extern TBool __nonatomic_cas8(volatile TAny* a, TUint8* q, TUint8 v); |
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271 extern TUint8 __nonatomic_add8(volatile TAny* a, TUint8 v); |
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272 extern TUint8 __nonatomic_and8(volatile TAny* a, TUint8 v); |
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273 extern TUint8 __nonatomic_ior8(volatile TAny* a, TUint8 v); |
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274 extern TUint8 __nonatomic_xor8(volatile TAny* a, TUint8 v); |
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275 extern TUint8 __nonatomic_axo8(volatile TAny* a, TUint8 u, TUint8 v); |
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276 extern TUint8 __nonatomic_tau8(volatile TAny* a, TUint8 t, TUint8 u, TUint8 v); |
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277 extern TInt8 __nonatomic_tas8(volatile TAny* a, TInt8 t, TInt8 u, TInt8 v); |
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278 |
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279 extern TUint16 __nonatomic_load16(const volatile TAny* a); |
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280 extern TUint16 __nonatomic_store16(volatile TAny* a, TUint16 v); |
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281 extern TUint16 __nonatomic_swp16(volatile TAny* a, TUint16 v); |
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282 extern TBool __nonatomic_cas16(volatile TAny* a, TUint16* q, TUint16 v); |
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283 extern TUint16 __nonatomic_add16(volatile TAny* a, TUint16 v); |
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284 extern TUint16 __nonatomic_and16(volatile TAny* a, TUint16 v); |
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285 extern TUint16 __nonatomic_ior16(volatile TAny* a, TUint16 v); |
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286 extern TUint16 __nonatomic_xor16(volatile TAny* a, TUint16 v); |
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287 extern TUint16 __nonatomic_axo16(volatile TAny* a, TUint16 u, TUint16 v); |
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288 extern TUint16 __nonatomic_tau16(volatile TAny* a, TUint16 t, TUint16 u, TUint16 v); |
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289 extern TInt16 __nonatomic_tas16(volatile TAny* a, TInt16 t, TInt16 u, TInt16 v); |
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290 |
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291 extern TUint32 __nonatomic_load32(const volatile TAny* a); |
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292 extern TUint32 __nonatomic_store32(volatile TAny* a, TUint32 v); |
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293 extern TUint32 __nonatomic_swp32(volatile TAny* a, TUint32 v); |
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294 extern TBool __nonatomic_cas32(volatile TAny* a, TUint32* q, TUint32 v); |
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295 extern TUint32 __nonatomic_add32(volatile TAny* a, TUint32 v); |
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296 extern TUint32 __nonatomic_and32(volatile TAny* a, TUint32 v); |
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297 extern TUint32 __nonatomic_ior32(volatile TAny* a, TUint32 v); |
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298 extern TUint32 __nonatomic_xor32(volatile TAny* a, TUint32 v); |
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299 extern TUint32 __nonatomic_axo32(volatile TAny* a, TUint32 u, TUint32 v); |
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300 extern TUint32 __nonatomic_tau32(volatile TAny* a, TUint32 t, TUint32 u, TUint32 v); |
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301 extern TInt32 __nonatomic_tas32(volatile TAny* a, TInt32 t, TInt32 u, TInt32 v); |
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302 |
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303 extern TUint64 __nonatomic_load64(const volatile TAny* a); |
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304 extern TUint64 __nonatomic_store64(volatile TAny* a, TUint64 v); |
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305 extern TUint64 __nonatomic_swp64(volatile TAny* a, TUint64 v); |
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306 extern TBool __nonatomic_cas64(volatile TAny* a, TUint64* q, TUint64 v); |
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307 extern TUint64 __nonatomic_add64(volatile TAny* a, TUint64 v); |
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308 extern TUint64 __nonatomic_and64(volatile TAny* a, TUint64 v); |
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309 extern TUint64 __nonatomic_ior64(volatile TAny* a, TUint64 v); |
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310 extern TUint64 __nonatomic_xor64(volatile TAny* a, TUint64 v); |
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311 extern TUint64 __nonatomic_axo64(volatile TAny* a, TUint64 u, TUint64 v); |
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312 extern TUint64 __nonatomic_tau64(volatile TAny* a, TUint64 t, TUint64 u, TUint64 v); |
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313 extern TInt64 __nonatomic_tas64(volatile TAny* a, TInt64 t, TInt64 u, TInt64 v); |
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314 |
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315 } // extern "C" |
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316 |
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317 |
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318 extern "C" const PFV ControlFuncPtr[] = |
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319 { |
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320 CONTROLFUNC3(8), |
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321 CONTROLFUNC3(16), |
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322 CONTROLFUNC3(32), |
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323 CONTROLFUNC3(64) |
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324 }; |
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325 #endif |
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326 |
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327 #ifdef __INCLUDE_FUNCTION_ATTRIBUTES__ |
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328 extern "C" const TUint FuncAttr[] = |
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329 { |
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330 FUNCATTR3(1), |
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331 FUNCATTR3(2), |
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332 FUNCATTR3(4), |
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333 FUNCATTR3(8) |
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334 }; |
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335 #endif |
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336 |
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337 template<class T> |
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338 struct TLoadFn // load |
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339 { |
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340 typedef T (*F)(const volatile TAny*); |
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341 }; |
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342 |
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343 template<class T> |
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344 struct TRmw1Fn // store, swp, add, and, ior, xor |
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345 { |
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346 typedef T (*F)(volatile TAny*, T); |
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347 }; |
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348 |
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349 template<class T> |
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350 struct TRmw2Fn // axo |
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351 { |
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352 typedef T (*F)(volatile TAny*, T, T); |
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353 }; |
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354 |
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355 template<class T> |
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356 struct TRmw3Fn // tau, tas |
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357 { |
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358 typedef T (*F)(volatile TAny*, T, T, T); |
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359 }; |
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360 |
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361 template<class T> |
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362 struct TCasFn // cas |
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363 { |
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364 typedef TBool (*F)(volatile TAny*, T*, T); |
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365 }; |
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366 |
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367 class TEnclosed |
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368 { |
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369 public: |
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370 TEnclosed(TInt aSize); |
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371 TAny* Ptr(); |
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372 TInt Next(); |
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373 void Init(); |
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374 TInt Verify(); |
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375 TInt Offset() const {return iOffset;} |
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376 private: |
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377 TUint64* iData; |
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378 TUint64* iBackup; |
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379 TUint64 i_Data[17]; |
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380 TInt iOffset; |
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381 TInt iSize; |
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382 }; |
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383 |
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384 template<class T> |
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385 class Transform |
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386 { |
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387 public: |
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388 inline static T A(); |
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389 inline static T B(); |
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390 static T F(T aOrig); // return Ax+B mod M (M=2^n, n=number of bits in T) |
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391 static T Pow(T aBase, TUint64 aExp); // return aBase^aExp mod M |
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392 static T PowerSum(T aBase, TUint64 aExp); // return 1 + T + T^2 + ... + T^(aExp-1) mod M |
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393 static T F_iter(T aOrig, TUint64 aCount); // return result of applying F iterated aCount times to aOrig |
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394 }; |
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395 |
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396 TEMPLATE_SPECIALIZATION inline TUint8 Transform<TUint8>::A() |
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397 { return 19; } |
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398 TEMPLATE_SPECIALIZATION inline TUint8 Transform<TUint8>::B() |
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399 { return 29; } |
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400 |
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401 TEMPLATE_SPECIALIZATION inline TUint16 Transform<TUint16>::A() |
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402 { return 487; } |
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403 TEMPLATE_SPECIALIZATION inline TUint16 Transform<TUint16>::B() |
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404 { return 12983; } |
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405 |
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406 TEMPLATE_SPECIALIZATION inline TUint32 Transform<TUint32>::A() |
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407 { return 29943829; } |
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408 TEMPLATE_SPECIALIZATION inline TUint32 Transform<TUint32>::B() |
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409 { return 104729; } |
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410 |
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411 TEMPLATE_SPECIALIZATION inline TUint64 Transform<TUint64>::A() |
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412 { return UI64LIT(2862933555777941757); } |
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413 TEMPLATE_SPECIALIZATION inline TUint64 Transform<TUint64>::B() |
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414 { return UI64LIT(104917093); } |
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415 |
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416 template<class T> |
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417 T Transform<T>::F(T aOrig) |
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418 { |
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419 return (T)(aOrig * Transform<T>::A() + Transform<T>::B()); |
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420 } |
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421 |
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422 template<class T> |
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423 T Transform<T>::Pow(T aBase, TUint64 aExp) |
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424 { |
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425 T result(1); |
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426 T multiplier(aBase); |
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427 while (aExp) |
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428 { |
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429 if (aExp&1) |
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430 result *= multiplier; |
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431 aExp >>= 1; |
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432 if (aExp) |
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433 multiplier *= multiplier; |
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434 } |
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435 return (T)result; |
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436 } |
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437 |
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438 template<class T> |
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439 T Transform<T>::PowerSum(T aBase, TUint64 aExp) |
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440 { |
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441 T result(0); |
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442 T multiplier(aBase); |
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443 T inter(1); |
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444 while (aExp) |
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445 { |
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446 if (aExp&1) |
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447 { |
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448 result *= multiplier; |
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449 result += inter; |
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450 } |
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451 aExp >>= 1; |
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452 if (aExp) |
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453 { |
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454 inter *= (multiplier + 1); |
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455 multiplier *= multiplier; |
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456 } |
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457 } |
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458 return (T)result; |
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459 } |
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460 |
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461 template<class T> |
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462 T Transform<T>::F_iter(T aOrig, TUint64 aCount) |
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463 { |
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464 return (T)(Pow(A(),aCount)*aOrig + PowerSum(A(),aCount)*B()); |
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465 } |
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466 |
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467 |
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468 |
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469 #ifdef __EPOC32__ |
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470 _LIT(KAtomicTestLddName,"D_ATOMIC"); |
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471 |
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472 class RTestAtomic : public RBusLogicalChannel |
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473 { |
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474 public: |
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475 enum TControl |
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476 { |
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477 ETDGExecuteK=0, |
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478 EInitialise=1, |
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479 ERetrieve=2, |
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480 ESetCurrentThreadTimeslice=3, |
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481 ESwitchExecTables=4, |
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482 EGetKernelMemoryAddress=5, |
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483 EMaxControl |
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484 }; |
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485 |
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486 #ifndef __KERNEL_MODE__ |
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487 public: |
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488 inline TInt Open() |
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489 { return DoCreate(KAtomicTestLddName,TVersion(),KNullUnit,NULL,NULL); } |
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490 public: |
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491 inline TInt TDGExecuteK(TDGBase& a) |
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492 { return DoControl(ETDGExecuteK, &a); } |
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493 inline TInt Initialise(TUint64 aValue) |
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494 { return DoControl(EInitialise, &aValue); } |
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495 inline TUint64 Retrieve() |
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496 { TUint64 x; DoControl(ERetrieve, &x); return x; } |
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497 inline TInt SetCurrentThreadTimeslice(TInt aTimeslice) |
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498 { return DoControl(ESetCurrentThreadTimeslice, (TAny*)aTimeslice); } |
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499 inline TInt SwitchExecTables(TInt aThread) |
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500 { return DoControl(ESwitchExecTables, (TAny*)aThread); } |
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501 inline TAny* KernelMemoryAddress() |
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502 { return (TAny*)DoControl(EGetKernelMemoryAddress); } |
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503 |
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504 static TInt GetThreadInfo(TPerThread& aInfo); |
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505 static TInt SetThreadInfo(const TPerThread& aInfo); |
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506 static TInt AtomicAction(TAtomicAction& aAction); |
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507 static TInt RestoreExecTable(); |
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508 #endif |
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509 }; |
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510 #endif |
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511 |
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512 |