1 /* 2 * Copyright 2012 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "Test.h" 9 #include "TestClassDef.h" 10 #include "SkThread.h" 11 #include "SkThreadUtils.h" 12 #include "SkTypes.h" 13 14 struct AddInfo { 15 int32_t valueToAdd; 16 int timesToAdd; 17 unsigned int processorAffinity; 18 }; 19 20 static int32_t base = 0; 21 22 static AddInfo gAdds[] = { 23 { 3, 100, 23 }, 24 { 2, 200, 2 }, 25 { 7, 150, 17 }, 26 }; 27 28 static void addABunchOfTimes(void* data) { 29 AddInfo* addInfo = static_cast<AddInfo*>(data); 30 for (int i = 0; i < addInfo->timesToAdd; i++) { 31 sk_atomic_add(&base, addInfo->valueToAdd); 32 } 33 } 34 35 DEF_TEST(Atomic, reporter) { 36 int32_t total = base; 37 SkThread* threads[SK_ARRAY_COUNT(gAdds)]; 38 for (size_t i = 0; i < SK_ARRAY_COUNT(gAdds); i++) { 39 total += gAdds[i].valueToAdd * gAdds[i].timesToAdd; 40 } 41 // Start the threads 42 for (size_t i = 0; i < SK_ARRAY_COUNT(gAdds); i++) { 43 threads[i] = new SkThread(addABunchOfTimes, &gAdds[i]); 44 threads[i]->setProcessorAffinity(gAdds[i].processorAffinity); 45 threads[i]->start(); 46 } 47 48 // Now end the threads 49 for (size_t i = 0; i < SK_ARRAY_COUNT(gAdds); i++) { 50 threads[i]->join(); 51 delete threads[i]; 52 } 53 REPORTER_ASSERT(reporter, total == base); 54 // Ensure that the returned value from sk_atomic_add is correct. 55 int32_t valueToModify = 3; 56 const int32_t originalValue = valueToModify; 57 REPORTER_ASSERT(reporter, originalValue == sk_atomic_add(&valueToModify, 7)); 58 } 59
