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1 // Copyright (c) 2007-2009 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\nkernsa\fastsem.cpp |
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15 // |
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16 // |
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17 |
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18 #define __INCLUDE_NTHREADBASE_DEFINES__ |
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19 |
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20 #include <nktest/nkutils.h> |
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21 |
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22 void CheckSemaphoreCount(NFastSemaphore* aS, TInt aExpected) |
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23 { |
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24 TInt w = 0; |
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25 TInt r; |
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26 do { |
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27 r = WaitWithTimeout(aS, KMinTimeout); |
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28 TEST_RESULT1(r==KErrNone || r==KErrTimedOut, "Invalid return code %d", r); |
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29 if (r == KErrNone) |
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30 ++w; |
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31 } while(r == KErrNone); |
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32 TEST_RESULT2(w==aExpected, "Signalled %d, Waited %d", aExpected, w); |
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33 } |
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34 |
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35 void FSTest1(TAny* a) |
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36 { |
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37 TInt n = (TInt)a; |
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38 NFastSemaphore s(0); |
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39 |
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40 TInt i; |
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41 for (i=0; i<n; ++i) NKern::FSSignal(&s); |
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42 CheckSemaphoreCount(&s, n); |
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43 NKern::FSSignalN(&s, n); |
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44 CheckSemaphoreCount(&s, n); |
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45 } |
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46 |
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47 #define DO_FS_TEST1(n,a) CreateThreadAndWaitForExit("FSTest1", &FSTest1, 12, (TAny*)(n), 0, -1, (a)) |
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48 |
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49 struct SFSTest2Info |
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50 { |
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51 NFastSemaphore iSem; |
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52 volatile TInt iBlockCount; |
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53 volatile TInt iSignals; |
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54 volatile TInt iWaits; |
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55 volatile TBool iStart; |
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56 volatile TBool iStop; |
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57 }; |
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58 |
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59 void FSTest2Signaller0(TAny* a) |
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60 { |
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61 SFSTest2Info& info = *(SFSTest2Info*)a; |
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62 while (!info.iStart) |
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63 { |
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64 } |
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65 // NThreadBase* t = info.iSem.iOwningThread; |
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66 while (!info.iStop) |
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67 { |
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68 ++info.iBlockCount; |
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69 __e32_atomic_add_ord32(&info.iSignals, 1); |
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70 NKern::FSSignal(&info.iSem); |
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71 } |
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72 TEST_PRINT1("Ran %d times", info.iBlockCount); |
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73 } |
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74 |
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75 #ifdef __SMP__ |
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76 class NKTest |
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77 { |
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78 public: |
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79 static TBool ThreadIsBlocked(NThreadBase* aT) |
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80 { return aT->iWaitState.ThreadIsBlocked(); } |
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81 }; |
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82 #endif |
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83 |
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84 void FSTest2Signaller(TAny* a) |
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85 { |
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86 SFSTest2Info& info = *(SFSTest2Info*)a; |
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87 while (!info.iStart) |
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88 { |
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89 } |
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90 NThreadBase* t = info.iSem.iOwningThread; |
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91 TInt count0=0; |
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92 TInt countneg=0; |
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93 TInt blocked=0; |
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94 TInt prev_block_count = info.iBlockCount; |
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95 TInt tries = 1; |
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96 TUint32 seed[2]; |
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97 seed[0] = NKern::CurrentCpu()+1; |
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98 seed[1] = 0; |
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99 while (!info.iStop) |
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100 { |
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101 TInt c = info.iSem.iCount; |
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102 if (c>=1) |
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103 continue; |
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104 if (--tries==0) |
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105 { |
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106 TInt bc; |
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107 do { |
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108 bc = info.iBlockCount; |
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109 } while (bc<=prev_block_count); |
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110 prev_block_count = bc; |
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111 tries = random(seed) & 127; |
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112 tries += 71; |
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113 } |
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114 TUint32 x = random(seed) & 63; |
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115 while (x) |
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116 --x; |
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117 c = info.iSem.iCount; |
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118 NKern::FSSignal(&info.iSem); |
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119 __e32_atomic_add_ord32(&info.iSignals, 1); |
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120 if (c==0) ++count0; |
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121 if (c<0) ++countneg; |
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122 #ifdef __SMP__ |
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123 if (NKTest::ThreadIsBlocked(t)) ++blocked; |
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124 #else |
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125 if (t->iNState == NThread::EWaitFastSemaphore) ++blocked; |
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126 #endif |
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127 } |
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128 TEST_PRINT1("Count =0 %d times", count0); |
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129 TEST_PRINT1("Count <0 %d times", countneg); |
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130 TEST_PRINT1("Blocked %d times", blocked); |
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131 } |
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132 |
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133 void FSTest2(TAny* a) |
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134 { |
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135 SFSTest2Info& info = *(SFSTest2Info*)a; |
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136 NFastSemaphore exitSem(0); |
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137 NKern::FSSetOwner(&info.iSem, 0); |
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138 info.iBlockCount = 0; |
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139 info.iWaits = 0; |
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140 info.iSignals = 0; |
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141 info.iStart = FALSE; |
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142 info.iStop = FALSE; |
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143 TInt cpu; |
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144 TInt threads = 0; |
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145 TInt this_cpu = NKern::CurrentCpu(); |
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146 for_each_cpu(cpu) |
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147 { |
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148 if (cpu==this_cpu) |
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149 CreateThreadSignalOnExit("FSTest2Sig0", &FSTest2Signaller0, 11, a, 0, KSmallTimeslice, &exitSem, cpu); |
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150 else |
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151 CreateThreadSignalOnExit("FSTest2Sig", &FSTest2Signaller, 12, a, 0, KSmallTimeslice, &exitSem, cpu); |
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152 ++threads; |
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153 } |
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154 |
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155 info.iStart = TRUE; |
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156 while(info.iWaits < 1048576) |
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157 { |
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158 NKern::FSWait(&info.iSem); |
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159 ++info.iWaits; |
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160 } |
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161 |
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162 info.iStop = TRUE; |
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163 while (threads--) |
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164 NKern::FSWait(&exitSem); |
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165 TEST_PRINT1("Leftover signals %d", info.iSignals-info.iWaits); |
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166 TInt r; |
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167 do { |
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168 r = WaitWithTimeout(&info.iSem, KMinTimeout); |
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169 TEST_RESULT1(r==KErrNone || r==KErrTimedOut, "Invalid return code %d", r); |
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170 if (r == KErrNone) |
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171 ++info.iWaits; |
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172 } while(r == KErrNone); |
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173 TEST_PRINT2("Signalled %d, Waited %d", info.iSignals, info.iWaits); |
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174 TEST_RESULT(info.iWaits==info.iSignals, "MISMATCH!"); |
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175 } |
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176 |
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177 void DoFsTest2() |
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178 { |
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179 SFSTest2Info info; |
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180 CreateThreadAndWaitForExit("FSTest2", &FSTest2, 12, (TAny*)&info, 0, KSmallTimeslice, 0); |
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181 } |
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182 |
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183 |
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184 void TestFastSemaphore() |
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185 { |
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186 TEST_PRINT("Testing Fast Semaphores..."); |
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187 |
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188 TInt cpu; |
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189 for_each_cpu(cpu) |
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190 { |
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191 DO_FS_TEST1(0,cpu); |
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192 DO_FS_TEST1(1,cpu); |
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193 DO_FS_TEST1(2,cpu); |
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194 DO_FS_TEST1(13,cpu); |
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195 } |
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196 |
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197 DoFsTest2(); |
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198 } |