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Commit 3667ea0

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Add playground files for buffer overflows
1 parent 7b2db73 commit 3667ea0

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4 files changed

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-0
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4 files changed

+104
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package com.lukaslechner.coroutineusecasesonandroid.playground.flow.concurrency
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import kotlinx.coroutines.channels.BufferOverflow
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import kotlinx.coroutines.coroutineScope
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.flow.buffer
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import kotlinx.coroutines.flow.flow
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suspend fun main() = coroutineScope {
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val flow = flow {
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repeat(5) {
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val pancakeIndex = it + 1
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println("Emitter: Start Cooking Pancake $pancakeIndex")
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delay(100)
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println("Emitter: Pancake $pancakeIndex ready!")
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emit(pancakeIndex)
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}
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}.buffer(capacity = 1, onBufferOverflow = BufferOverflow.SUSPEND)
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flow.collect {
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println("Collector: Start eating pancake $it")
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delay(300)
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println("Collector: Finished eating pancake $it")
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}
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}
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package com.lukaslechner.coroutineusecasesonandroid.playground.flow.concurrency
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import kotlinx.coroutines.channels.BufferOverflow
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import kotlinx.coroutines.coroutineScope
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.flow.buffer
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import kotlinx.coroutines.flow.flow
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suspend fun main() = coroutineScope {
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val flow = flow {
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repeat(5) {
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val pancakeIndex = it + 1
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println("Emitter: Start Cooking Pancake $pancakeIndex")
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delay(100)
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println("Emitter: Pancake $pancakeIndex ready!")
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emit(pancakeIndex)
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}
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}.buffer(capacity = 1, onBufferOverflow = BufferOverflow.DROP_OLDEST)
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flow.collect {
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println("Collector: Start eating pancake $it")
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delay(300)
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println("Collector: Finished eating pancake $it")
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}
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}
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package com.lukaslechner.coroutineusecasesonandroid.playground.flow.concurrency
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import kotlinx.coroutines.channels.BufferOverflow
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import kotlinx.coroutines.coroutineScope
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.flow.buffer
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import kotlinx.coroutines.flow.flow
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suspend fun main() = coroutineScope {
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val flow = flow {
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repeat(5) {
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val pancakeIndex = it + 1
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println("Emitter: Start Cooking Pancake $pancakeIndex")
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delay(100)
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println("Emitter: Pancake $pancakeIndex ready!")
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emit(pancakeIndex)
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}
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}.buffer(capacity = 1, onBufferOverflow = BufferOverflow.DROP_LATEST)
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flow.collect {
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println("Collector: Start eating pancake $it")
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delay(300)
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println("Collector: Finished eating pancake $it")
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}
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}
Lines changed: 26 additions & 0 deletions
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package com.lukaslechner.coroutineusecasesonandroid.playground.flow.concurrency
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import kotlinx.coroutines.channels.Channel.Factory.UNLIMITED
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import kotlinx.coroutines.coroutineScope
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.flow.buffer
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import kotlinx.coroutines.flow.flow
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suspend fun main() = coroutineScope {
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val flow = flow {
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repeat(5) {
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val pancakeIndex = it + 1
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println("Emitter: Start Cooking Pancake $pancakeIndex")
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delay(100)
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println("Emitter: Pancake $pancakeIndex ready!")
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emit(pancakeIndex)
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}
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}.buffer(capacity = UNLIMITED)
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flow.collect {
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println("Collector: Start eating pancake $it")
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delay(300)
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println("Collector: Finished eating pancake $it")
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}
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}

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