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potentially first version of SmartKeyRWLocker

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InsanusMokrassar
2025-03-23 11:16:45 +06:00
parent 4c9e435df8
commit 761070b9b7
7 changed files with 182 additions and 28 deletions
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43
coroutines/src/commonTest/kotlin/SmartKeyRWLockerTests.kt
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@@ -63,13 +63,54 @@ class SmartKeyRWLockerTests {
assertFails {
realWithTimeout(13.milliseconds) { locker.lockWrite() }
}
val readPermitsBeforeLock = locker.readSemaphore().freePermits
realWithTimeout(1.seconds) { locker.acquireRead() }
locker.releaseRead()
assertTrue { locker.readSemaphore().freePermits == Int.MAX_VALUE }
assertEquals(readPermitsBeforeLock, locker.readSemaphore().freePermits)
locker.releaseRead(it)
}
assertTrue { locker.readSemaphore().freePermits == Int.MAX_VALUE }
realWithTimeout(1.seconds) { locker.lockWrite() }
assertFails {
realWithTimeout(13.milliseconds) { locker.acquireRead() }
}
assertTrue { locker.unlockWrite() }
assertTrue { locker.readSemaphore().freePermits == Int.MAX_VALUE }
}
@Test
fun writesBlockingGlobalWrite() = runTest {
val locker = SmartKeyRWLocker<String>()
val testKeys = (0 until 100).map { "test$it" }
for (i in testKeys.indices) {
val it = testKeys[i]
locker.lockWrite(it)
val previous = testKeys.take(i)
val next = testKeys.drop(i + 1)
previous.forEach {
assertTrue { locker.writeMutexOrNull(it) ?.isLocked == true }
}
next.forEach {
assertTrue { locker.writeMutexOrNull(it) ?.isLocked != true }
}
}
for (i in testKeys.indices) {
val it = testKeys[i]
assertFails { realWithTimeout(13.milliseconds) { locker.lockWrite() } }
val readPermitsBeforeLock = locker.readSemaphore().freePermits
assertFails { realWithTimeout(13.milliseconds) { locker.acquireRead() } }
assertEquals(readPermitsBeforeLock, locker.readSemaphore().freePermits)
locker.unlockWrite(it)
}
assertTrue { locker.readSemaphore().freePermits == Int.MAX_VALUE }
realWithTimeout(1.seconds) { locker.lockWrite() }
assertFails {
realWithTimeout(13.milliseconds) { locker.acquireRead() }

16
coroutines/src/commonTest/kotlin/SmartRWLockerTests.kt
View File

@@ -6,7 +6,10 @@ import kotlinx.coroutines.sync.withLock
import kotlinx.coroutines.test.runTest
import kotlin.test.Test
import kotlin.test.assertEquals
import kotlin.test.assertFails
import kotlin.test.assertFalse
import kotlin.test.assertTrue
import kotlin.time.Duration.Companion.seconds
class SmartRWLockerTests {
@Test
@@ -148,4 +151,17 @@ class SmartRWLockerTests {
assertEquals(false, locker.writeMutex.isLocked)
}
}
@Test
fun exceptionOnLockingWillNotLockLocker() = runTest {
val locker = SmartRWLocker()
locker.acquireRead()
assertFails {
realWithTimeout(1.seconds) {
locker.lockWrite()
}
}
assertFalse { locker.writeMutex.isLocked }
}
}