| 5 |
|
* http://creativecommons.org/publicdomain/zero/1.0/ |
| 6 |
|
*/ |
| 7 |
|
|
| 8 |
+ |
import static java.util.concurrent.TimeUnit.DAYS; |
| 9 |
|
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| 10 |
|
|
| 11 |
+ |
import java.util.ArrayList; |
| 12 |
+ |
import java.util.List; |
| 13 |
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import java.util.concurrent.CountDownLatch; |
| 14 |
+ |
import java.util.concurrent.TimeUnit; |
| 15 |
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import java.util.concurrent.locks.Lock; |
| 16 |
|
import java.util.concurrent.locks.StampedLock; |
| 17 |
+ |
import java.util.function.BiConsumer; |
| 18 |
+ |
import java.util.function.Consumer; |
| 19 |
+ |
import java.util.function.Function; |
| 20 |
|
|
| 21 |
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import junit.framework.Test; |
| 22 |
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import junit.framework.TestSuite; |
| 1058 |
|
assertThrows(IllegalMonitorStateException.class, actions); |
| 1059 |
|
} |
| 1060 |
|
|
| 1061 |
+ |
static long writeLockInterruptiblyUninterrupted(StampedLock sl) { |
| 1062 |
+ |
try { return sl.writeLockInterruptibly(); } |
| 1063 |
+ |
catch (InterruptedException ex) { throw new AssertionError(ex); } |
| 1064 |
+ |
} |
| 1065 |
+ |
|
| 1066 |
+ |
static long tryWriteLockUninterrupted(StampedLock sl, long time, TimeUnit unit) { |
| 1067 |
+ |
try { return sl.tryWriteLock(time, unit); } |
| 1068 |
+ |
catch (InterruptedException ex) { throw new AssertionError(ex); } |
| 1069 |
+ |
} |
| 1070 |
+ |
|
| 1071 |
+ |
/** |
| 1072 |
+ |
* Invalid write stamps result in IllegalMonitorStateException |
| 1073 |
+ |
*/ |
| 1074 |
+ |
public void testInvalidWriteStampsThrowIllegalMonitorStateException() { |
| 1075 |
+ |
List<Function<StampedLock, Long>> writeLockers = new ArrayList<>(); |
| 1076 |
+ |
writeLockers.add((sl) -> sl.writeLock()); |
| 1077 |
+ |
writeLockers.add((sl) -> writeLockInterruptiblyUninterrupted(sl)); |
| 1078 |
+ |
writeLockers.add((sl) -> tryWriteLockUninterrupted(sl, Long.MIN_VALUE, DAYS)); |
| 1079 |
+ |
writeLockers.add((sl) -> tryWriteLockUninterrupted(sl, 0, DAYS)); |
| 1080 |
+ |
|
| 1081 |
+ |
List<Consumer<StampedLock>> mutaters = new ArrayList<>(); |
| 1082 |
+ |
mutaters.add((sl) -> {}); |
| 1083 |
+ |
mutaters.add((sl) -> sl.readLock()); |
| 1084 |
+ |
for (Function<StampedLock, Long> writeLocker : writeLockers) |
| 1085 |
+ |
mutaters.add((sl) -> writeLocker.apply(sl)); |
| 1086 |
+ |
|
| 1087 |
+ |
List<BiConsumer<StampedLock, Long>> writeUnlockers = new ArrayList<>(); |
| 1088 |
+ |
writeUnlockers.add((sl, stamp) -> sl.unlockWrite(stamp)); |
| 1089 |
+ |
writeUnlockers.add((sl, stamp) -> assertTrue(sl.tryUnlockWrite())); |
| 1090 |
+ |
writeUnlockers.add((sl, stamp) -> sl.asWriteLock().unlock()); |
| 1091 |
+ |
writeUnlockers.add((sl, stamp) -> sl.unlock(stamp)); |
| 1092 |
+ |
|
| 1093 |
+ |
for (Function<StampedLock, Long> writeLocker : writeLockers) |
| 1094 |
+ |
for (BiConsumer<StampedLock, Long> writeUnlocker : writeUnlockers) |
| 1095 |
+ |
for (Consumer<StampedLock> mutater : mutaters) { |
| 1096 |
+ |
StampedLock sl = new StampedLock(); |
| 1097 |
+ |
long stamp = writeLocker.apply(sl); |
| 1098 |
+ |
assertTrue(stamp != 0L); |
| 1099 |
+ |
assertThrows(IllegalMonitorStateException.class, |
| 1100 |
+ |
() -> sl.unlockRead(stamp)); |
| 1101 |
+ |
writeUnlocker.accept(sl, stamp); |
| 1102 |
+ |
mutater.accept(sl); |
| 1103 |
+ |
assertThrows(IllegalMonitorStateException.class, |
| 1104 |
+ |
() -> sl.unlock(stamp), |
| 1105 |
+ |
() -> sl.unlockRead(stamp), |
| 1106 |
+ |
() -> sl.unlockWrite(stamp)); |
| 1107 |
+ |
} |
| 1108 |
+ |
} |
| 1109 |
+ |
|
| 1110 |
|
} |
