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Catch a thread's exception in the caller thread in Python

...hat_raises(do_raise): for i in range(3): print(i) time.sleep(0.1) if do_raise: raise Exception() for i in range(3): print(i) time.sleep(0.1) with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: futures = [] futures.append...
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How to use WinForms progress bar?

... { // Wait 100 milliseconds. Thread.Sleep(100); // Report progress. backgroundWorker1.ReportProgress(i); } } private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e) ...
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background function in Python

...ntil the thread closes. (example import threading, time; wait=lambda: time.sleep(2); t=threading.Thread(target=wait); t.start(); print('end')). I was hoping "background" implied detached as well. – ThorSummoner Nov 29 '16 at 0:49 ...
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Thread pooling in C++11

...e some kind of concurrent data structure, and each thread would presumably sleep on some kind of condition variable, which would be notified when there's work to do. Upon receiving the notification, one or several of the threads wake up, recover a task from the concurrent data structure, process it,...
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DaffyMenu 扩展:弹出菜单扩展,为组件添加弹出式菜单功能 · App Inventor 2 中文网

...界面 应用示例 功能展示 函数 事件 属性 使用示例 基础菜单设置 处理菜单点击事件 为多个组件设置菜单 菜单样式自定义 菜单状态管理 ...
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What's the difference between Invoke() and BeginInvoke()

...readStart)delegate() { myTextBox.Text = "bing"; Thread.Sleep(TimeSpan.FromSeconds(3)); }); MessageBox.Show("done"); } If use BeginInvoke, MessageBox pops simultaneous to the text update. If use Invoke, MessageBox pops after the 3 second sleep. Hence, showing the effect of...
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How can you diff two pipelines in Bash?

... this with e.g.: comm -23 <(seq 100 | sort) <(seq 10 20 && sleep 5 && seq 20 30 | sort) If this is an issue, you could try sd (stream diff), which doesn't require sorting (like comm does) nor process substitution like the above examples, is orders or magnitude faster than g...
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Windows x64编程中寄存器的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...下使用 /homeparams 选项来编译代码。 上面的 EditTextFile() 函数结果如下: void EditTextFile(HWND hEdit, LPCTSTR szFileName) { 000000013F6A15C0 48 89 54 24 10 mov qword ptr [rsp+10h],rdx // 第 2 个参数回写 000000013F6A15C5 48 89 4C 24 08 mov...
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内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...

...现状 目前大部分服务端程序使用glibc提供的malloc/free系列函数,而glibc使用的ptmalloc2在性能上远远弱后于google的tcmalloc和facebook的jemalloc。 而且后两者只需要使用LD_PRELOAD环境变量启动程序即可,甚至并不需要重新编译。 glibc ptmall...
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Is there a Java equivalent to C#'s 'yield' keyword?

...ng"); } }) { System.out.println(" Consuming " + item); Thread.sleep(200); } Or you can use lambda notation to cut down on boilerplate: for (Integer item : new Producer<Integer>(/* queueSize = */ 5, producer -> { for (int i = 0; i < 20; i++) { System.out.printl...