| /* |
| * Copyright 2016-2017 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // This file was automatically generated from coroutines-guide.md by Knit tool. Do not edit. |
| package kotlinx.coroutines.experimental.guide.channel10 |
| |
| import kotlinx.coroutines.experimental.* |
| import kotlinx.coroutines.experimental.channels.* |
| |
| fun main(args: Array<String>) = runBlocking<Unit> { |
| val tickerChannel = ticker(delay = 100, initialDelay = 0) // create ticker channel |
| var nextElement = withTimeoutOrNull(1) { tickerChannel.receive() } |
| println("Initial element is available immediately: $nextElement") // Initial delay hasn't passed yet |
| |
| nextElement = withTimeoutOrNull(50) { tickerChannel.receive() } // All subsequent elements has 100ms delay |
| println("Next element is not ready in 50 ms: $nextElement") |
| |
| nextElement = withTimeoutOrNull(60) { tickerChannel.receive() } |
| println("Next element is ready in 100 ms: $nextElement") |
| |
| // Emulate large consumption delays |
| println("Consumer pauses for 150ms") |
| delay(150) |
| // Next element is available immediately |
| nextElement = withTimeoutOrNull(1) { tickerChannel.receive() } |
| println("Next element is available immediately after large consumer delay: $nextElement") |
| // Note that the pause between `receive` calls is taken into account and next element arrives faster |
| nextElement = withTimeoutOrNull(60) { tickerChannel.receive() } |
| println("Next element is ready in 50ms after consumer pause in 150ms: $nextElement") |
| |
| tickerChannel.cancel() // indicate that no more elements are needed |
| } |