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| 1 // | |
| 2 //******************************************************************** | |
| 3 // Copyright (C) 2002, International Business Machines | |
| 4 // Corporation and others. All Rights Reserved. | |
| 5 //******************************************************************** | |
| 6 // | |
| 7 // File stringtest.cpp | |
| 8 // | |
| 9 | |
| 10 #include "threadtest.h" | |
| 11 #include "unicode/unistr.h" | |
| 12 #include "stdio.h" | |
| 13 | |
| 14 class StringThreadTest: public AbstractThreadTest { | |
| 15 public: | |
| 16 StringThreadTest(); | |
| 17 virtual ~StringThreadTest(); | |
| 18 virtual void check(); | |
| 19 virtual void runOnce(); | |
| 20 void makeStringCopies(int recursionCount); | |
| 21 | |
| 22 private: | |
| 23 UnicodeString *fCleanStrings; | |
| 24 UnicodeString *fSourceStrings; | |
| 25 }; | |
| 26 | |
| 27 StringThreadTest::StringThreadTest() { | |
| 28 // cleanStrings and sourceStrings are separately initialized to the same val
ues. | |
| 29 // cleanStrings are never touched after in any remotely unsafe way. | |
| 30 // sourceStrings are copied during the test, which will run their buffer's r
eference | |
| 31 // counts all over the place. | |
| 32 fCleanStrings = new UnicodeString[5]; | |
| 33 fSourceStrings = new UnicodeString[5]; | |
| 34 | |
| 35 fCleanStrings[0] = "When sorrows come, they come not single spies, but in b
atallions."; | |
| 36 fSourceStrings[0] = "When sorrows come, they come not single spies, but in b
atallions."; | |
| 37 fCleanStrings[1] = "Away, you scullion! You rampallion! You fustilarion! I'
ll tickle your catastrophe!"; | |
| 38 fSourceStrings[1] = "Away, you scullion! You rampallion! You fustilarion! I'
ll tickle your catastrophe!"; | |
| 39 fCleanStrings[2] = "hot"; | |
| 40 fSourceStrings[2] = "hot"; | |
| 41 fCleanStrings[3] = ""; | |
| 42 fSourceStrings[3] = ""; | |
| 43 fCleanStrings[4] = "Tomorrow, and tomorrow, and tomorrow,\n" | |
| 44 "Creeps in this petty pace from day to day\n" | |
| 45 "To the last syllable of recorded time;\n" | |
| 46 "And all our yesterdays have lighted fools \n" | |
| 47 "The way to dusty death. Out, out brief candle!\n" | |
| 48 "Life's but a walking shadow, a poor player\n" | |
| 49 "That struts and frets his hour upon the stage\n" | |
| 50 "And then is heard no more. It is a tale\n" | |
| 51 "Told by and idiot, full of sound and fury,\n" | |
| 52 "Signifying nothing.\n"; | |
| 53 fSourceStrings[4] = "Tomorrow, and tomorrow, and tomorrow,\n" | |
| 54 "Creeps in this petty pace from day to day\n" | |
| 55 "To the last syllable of recorded time;\n" | |
| 56 "And all our yesterdays have lighted fools \n" | |
| 57 "The way to dusty death. Out, out brief candle!\n" | |
| 58 "Life's but a walking shadow, a poor player\n" | |
| 59 "That struts and frets his hour upon the stage\n" | |
| 60 "And then is heard no more. It is a tale\n" | |
| 61 "Told by and idiot, full of sound and fury,\n" | |
| 62 "Signifying nothing.\n"; | |
| 63 }; | |
| 64 | |
| 65 | |
| 66 StringThreadTest::~StringThreadTest() { | |
| 67 delete [] fCleanStrings; | |
| 68 delete [] fSourceStrings; | |
| 69 } | |
| 70 | |
| 71 | |
| 72 void StringThreadTest::runOnce() { | |
| 73 makeStringCopies(25); | |
| 74 } | |
| 75 | |
| 76 void StringThreadTest::makeStringCopies(int recursionCount) { | |
| 77 UnicodeString firstGeneration[5]; | |
| 78 UnicodeString secondGeneration[5]; | |
| 79 UnicodeString thirdGeneration[5]; | |
| 80 UnicodeString fourthGeneration[5]; | |
| 81 | |
| 82 // Make four generations of copies of the source strings, in slightly varian
t ways. | |
| 83 // | |
| 84 int i; | |
| 85 for (i=0; i<5; i++) { | |
| 86 firstGeneration[i] = fSourceStrings[i]; | |
| 87 secondGeneration[i] = firstGeneration[i]; | |
| 88 thirdGeneration[i] = UnicodeString(secondGeneration[i]); | |
| 89 // fourthGeneration[i] = UnicodeString("Lay on, MacDuff, And damn'd be
him that first cries, \"Hold, enough!\""); | |
| 90 fourthGeneration[i] = UnicodeString(); | |
| 91 fourthGeneration[i] = thirdGeneration[i]; | |
| 92 } | |
| 93 | |
| 94 | |
| 95 // Recurse to make even more copies of the strings/ | |
| 96 // | |
| 97 if (recursionCount > 0) { | |
| 98 makeStringCopies(recursionCount-1); | |
| 99 } | |
| 100 | |
| 101 | |
| 102 // Verify that all four generations are equal. | |
| 103 for (i=0; i<5; i++) { | |
| 104 if (firstGeneration[i] != fSourceStrings[i] || | |
| 105 firstGeneration[i] != secondGeneration[i] || | |
| 106 firstGeneration[i] != thirdGeneration[i] || | |
| 107 firstGeneration[i] != fourthGeneration[i]) | |
| 108 { | |
| 109 fprintf(stderr, "Error, strings don't compare equal.\n"); | |
| 110 } | |
| 111 } | |
| 112 | |
| 113 }; | |
| 114 | |
| 115 | |
| 116 void StringThreadTest::check() { | |
| 117 // | |
| 118 // Check that the reference counts on the buffers for all of the source str
ings | |
| 119 // are one. The ref counts will have run way up while the test threads | |
| 120 // make numerous copies of the strings, but at the top of the loop all | |
| 121 // of the copies should be gone. | |
| 122 // | |
| 123 int i; | |
| 124 | |
| 125 for (i=0; i<5; i++) { | |
| 126 if (fSourceStrings[i].fFlags & UnicodeString::kRefCounted) { | |
| 127 const UChar *buf = fSourceStrings[i].getBuffer(); | |
| 128 uint32_t refCount = fSourceStrings[i].refCount(); | |
| 129 if (refCount != 1) { | |
| 130 fprintf(stderr, "\nFailure. SourceString Ref Count was %d, shou
ld be 1.\n", refCount); | |
| 131 } | |
| 132 } | |
| 133 } | |
| 134 }; | |
| 135 | |
| 136 | |
| 137 // | |
| 138 // Factory functoin for StringThreadTest. | |
| 139 // C function lets ThreadTest create StringTests without needing StringThrea
dTest header. | |
| 140 // | |
| 141 AbstractThreadTest *createStringTest() { | |
| 142 return new StringThreadTest(); | |
| 143 }; | |
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Chromium Code Reviews
Issue 1621843002:
ICU 56 update step 1 (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/icu.git@561