asynchronous

APM, EAP and TPL on Socket Programming

由 我们两清 提交于 2021-02-04 10:57:42
问题 I found Difference between […]Async and Begin[…] .net asynchronous APIs question but this answer confused me a little bit. Talking about these patterns, Stephen said: Most *Async methods (with corresponding *Completed events) are using the Event-Based Asynchronous Pattern. The older (but still perfectly valid) Begin* and End* is a pattern called the Asynchronous Programming Model. The Socket class is an exception to this rule; its *Async methods do not have any corresponding events; it's

How to verify log4j2 is logging asynchronously via LMAX disruptor?

由 蓝咒 提交于 2021-02-04 10:45:42
问题 I am developing an Eclipse RCP application and have gone to some pains to get log4j2 to work within the app. All seems to work fine now, and as a finishing touch I wanted to make all loggers asynchronously. I've managed to get the LMAX Disruptor on the classpath, and think I've solved the issue of providing sun.misc as well. Set the VM argument -DLog4jContextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector in the run config and set up log4j2.xml file correctly as well.

How to verify log4j2 is logging asynchronously via LMAX disruptor?

由 别说谁变了你拦得住时间么 提交于 2021-02-04 10:45:10
问题 I am developing an Eclipse RCP application and have gone to some pains to get log4j2 to work within the app. All seems to work fine now, and as a finishing touch I wanted to make all loggers asynchronously. I've managed to get the LMAX Disruptor on the classpath, and think I've solved the issue of providing sun.misc as well. Set the VM argument -DLog4jContextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector in the run config and set up log4j2.xml file correctly as well.

C++ boost asynchronous timer to run in parallel with program

由 匆匆过客 提交于 2021-02-04 06:28:48
问题 Note: This is for C++98 I am trying to develop a simple timer/counter that runs in the background of my main program. I haven't used asynchronous timers before, and I have been trying to follow the boost tutorials on how to do this, but they still seem to block my main function. I've slightly modified Timer.3 from the boost website to experiment. Essentially, with the program below what I want to do is: Run main Execute testRun() which counts to 5 At the same time testRun() is counting, print

Running async functions on Google Apps Script

由 别等时光非礼了梦想. 提交于 2021-02-04 05:18:51
问题 I am attempting to run WebAssembly on the new V8 Google Apps Script runtime, and it appears to be supported, however it seems that async functions are terminated after they return a Promise. let wasm= new Uint8Array([/* snip */]).buffer function add(a,b) { return((async()=>{ console.log("running function...") results=await WebAssembly.instantiate(wasm) return results.instance.exports.add(a,b) })()); } function test(){ add(2,3).then(console.log).catch(console.error) } when I run test "running

Running async functions on Google Apps Script

由 孤者浪人 提交于 2021-02-04 05:05:35
问题 I am attempting to run WebAssembly on the new V8 Google Apps Script runtime, and it appears to be supported, however it seems that async functions are terminated after they return a Promise. let wasm= new Uint8Array([/* snip */]).buffer function add(a,b) { return((async()=>{ console.log("running function...") results=await WebAssembly.instantiate(wasm) return results.instance.exports.add(a,b) })()); } function test(){ add(2,3).then(console.log).catch(console.error) } when I run test "running

Running async functions on Google Apps Script

由 落爺英雄遲暮 提交于 2021-02-04 05:04:20
问题 I am attempting to run WebAssembly on the new V8 Google Apps Script runtime, and it appears to be supported, however it seems that async functions are terminated after they return a Promise. let wasm= new Uint8Array([/* snip */]).buffer function add(a,b) { return((async()=>{ console.log("running function...") results=await WebAssembly.instantiate(wasm) return results.instance.exports.add(a,b) })()); } function test(){ add(2,3).then(console.log).catch(console.error) } when I run test "running

ConfigureAwait(true) not returning on the context it was awaited on

由 ╄→尐↘猪︶ㄣ 提交于 2021-02-02 09:46:45
问题 Sample : static void Main(string[] args) { int counter = 0; var t = new System.Timers.Timer(); t.Interval = 3000; t.Elapsed += async (sender, e) => { Debug.WriteLine("Before await - Thread : {0} , Counter : {1}", Thread.CurrentThread.ManagedThreadId, counter); await Task.Delay(1000).ConfigureAwait(true); Debug.WriteLine("Ater await Thread : {0}, Counter : {1} ", Thread.CurrentThread.ManagedThreadId, counter); counter++; if (counter == 2) { Debug.WriteLine("Stop"); t.Stop(); } }; t.Start();

linux线程基本编程

由 你离开我真会死。 提交于 2021-02-01 04:02:30
索引： 1.创建线程pthread_create 2.等待线程结束pthread_join 3.分离线程pthread_detach 4.创建线程键pthread_key_create 5.删除线程键pthread_key_delete 6.设置线程数据pthread_setspecific 7.获取线程数据pthread_getspecific 8.获取线程标示符pthread_self 9.比较线程pthread_equal 10.一次执行pthread_once 11.出让执行权sched_yield 12.修改优先级pthread_setschedparam 13.获取优先级pthread_getschedparam 14.发送信号pthread_kill 15.设置线程掩码pthread_sigmask 16.终止线程pthread_exit 17.退出线程pthread_cancel 18.允许/禁止退出线程pthread_setcancelstate 19.设置退出类型pthread_setcanceltype 20.创建退出点pthread_testcancel 21.压入善后处理函数 22.弹出善后处理函数 -------------------------------------------------------------------------------

Flutter firestore getting data receiver: null error

由 半腔热情 提交于 2021-01-29 19:56:30
问题 I searched a lot but couldn't find a solution. I need your help. In my database model, I have a method like this to get the data: Future<Map<String,dynamic>> getSystemSettings() async { var response = await _firestore.collection("system").doc("settings").get(); return response.data(); } Later, I want to use the data in the form of Map <String, dynamic> from the class I want to get the data from by calling the method as follows. getValues() { database.getSystemSettings().then((value) { print(
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