c# multi thread

threads for them. ------- 4) a thread is an independent scheduling unit of a processor. Multiple Threads can be executed concurrently. In a single-CPU computer system, each thread can use the CPU alternately. In a multi-CPU computer system, each thread can use different CPUs at the same time, if each CPU is a

This book mainly shares the author's experience in implementing multi-thread and network programming in the company's internal distributed service system, and introduces C ++Many of the design decisions in this book are made in this application scenario. This book does not elaborate on the Design of Distributed systems. It only lists the challenges of distributed

I recently read some C # code and found that many of them have not been used before. I can only check them online and sort them out. We often encounter the need to operate on a certain data at the same time, or perform read and write operations on a certain file. We often cannot process these operations well before, since the lock keyword is introduced in the C # language, the above problem is easy to solve

Release a C ++ multi-thread library for Linux written in my spare time. This library contains less than 1000 lines.Source codeIt encapsulates common pthreads functions (mutex, condition variable, thread), implements a simple thread pool, and compiles blockingqueue and countd

Just likeMyLogger ("who is? ") " " I ' m ZRH " " I ' m in thread: " , std::this_thread::get_id ()); MyLogger (1"+"2u " = " " 3 ");Multiple thread output shapes such as: 2016-04-16 10:54:54 who is? I ' M ZRH i ' m in thread:67362016-04-16 10:54:54 1 + 2 = 32016-04-16 10:54:54 who is? I ' M ZRH i ' m in thread:1

Theadpool: In multithreaded programming, if you don't want to create threads frequently, consider using a thread pool to do multithreaded programming. All you need to do is deliver the task to ThreadPool, and if there are idle threads in ThreadPool, ThreadPool will assign the task you delivered to an idle thread, and if there are no idle threads available in ThreadPool, ThreadPool will automatically create

C # has good support for multi-threaded programming. The following solutions are commonly used: 1. Lock (object) pairs to be synchronizedCodeBlock locking; 2. Monitor class 3. readerwriterlock class 4. mutex class 5. semaphore 6. Event This time I will mainly talk about lock and monitor. Some experience in multi-

C # Multithreading and controlling the number of threads for the For loop output efficiency.Although the output is irregular, the efficiency is obviously improved.Ideas:If you want to delete 1000 data, use a For loop only, then one output. So, 1000 pieces of data are divided into seed segments and 10 pieces of data per segment.int seed = Convert.ToInt32 (createcount.value)% 10 = = 0? Convert.ToInt32 (Createcount.value)/10:convert.toint32 (Createcount.

C # multi-thread usage 6-collaboration among threads Mutex, Mutex is mutually exclusive in the Process of thread collaboration, and the effect is similar to the thread lock. /// Note: 1. initiallyOwned indicates whether the mutex creation

C ++ boost library lock-free queue multi-thread parallel testing and compilation methods I read the source code about the unlock queue of the Boost library on the network, but there is no compilation method. After testing, the methods for compiling the boost library in ubuntu 14.04 are determined. Free-lock is an important technology for implementing high-perform

: When the host process finishes executing, but the foreground thread function is not completed, the thread will no longer depend on the process to continue execution until the code finishes executingprivate static void Multithreadlifecycle () {Parameterizedthreadstart task = (sleep) + = { int i = Convert.ToInt32 (sleep); try {for (var i = 0; i Description1, set whether the off-the-shelf is a

Multithreading refersProgramContains multiple execution streams, that is, a program can run multiple different threads to execute different tasks at the same time, that is to say, a single program is allowed to create multiple parallel threads to complete their respective tasks. CPU utilization can be improved. In a multi-threaded program, when a thread has to wait, the CPU can run other threads instead of

Here we will introduce the C # Lock keyword. It can define a piece of code as a critical section. A mutex can only be executed by one thread at a time, while other threads must wait. C # language is worth learning a lot. Here we mainly introduce the C # Lock keyword, including the locking of an object in the monit

)) { using(StreamWriter SW =NewStreamWriter (FS, Encoding.default)) { Try{SW. Write (ex); } Catch(Exception ex1) {writelog (EX1); } finally{SW. Close (); Fs. Close (); } } } } Else { using(FileStream fs =NewFileStream (LogURL, FileMode.CreateNew)) {

Recently, when the project was coming to an end, an incredible bug occurred. It took two hours to determine that the bug was caused by multithreading and encountered the issue of thread nesting. Thread nesting means that the Execution Code of thread A starts thread B, and the Execution Code of

); // more clearly observe whether the mutex lock for the Creation thread has been executedPrintf ("Main unlock \ n ");Pthread_mutex_unlock ( testlock ); Sleep (1 ); Pthread_join (test_thread, null );Pthread_mutex_destroy ( testlock );Return 0;} MakeGcc-d_reentrant-lpthread-O test. c Result:Main lockMain unlockThread test () Ii. Condition VariablesThe usage of pthread_cond_wait () is described below.A condi

C ++ implements a multi-thread synchronization mode of collaborative working program example, working program example Multi-threaded concurrent programs and collaborative programs are actually different concepts. Multi-thread conc

In ourProgramIn, there are often some time-consuming operations. To ensure the user experience, do not cause the interface to not respond, we generally use multi-threaded operations, so that time-consuming operations are completed in the background, after the process is completed, or a prompt is displayed. During running, the progress bar and other display elements on the interface will be refreshed from time to time. If necessary, the background

The first LINUX multi-thread C concurrent program to be copied must use the pthread. h header file ~ This is not complete. Remember to use-lpthread to link libpthread. A during compilation. The principle is very simple. Use sleep (1) to print once every second. The two threads print "hello" and "world! respectively! \ N "Although I slept for one second, the two p

C # web crawler-multi-thread processing enhanced edition, The last time I made a web crawler for my company's sister, it was not very delicate. I used it in this company project. So I made some changes and added the web site image collection and downloading functions, download images from the web page of the thread pro