Programmer Think

In Alibaba java development manual, it is pointed out that thread resources must be provided through thread pool, and it is not allowed to create threads displayed in the application. On the one hand, the creation of threads is more standardized, which can reasonably control the number of threads; On the other hand, the detail management of thr ...

preface    if you find it useful, remember to give the blogger a praise, comment and collection. It's not easy to write with one button.    and it's said that people who praise won't have too bad luck every day. If it's really white whoring, you're welcome to come often!!! 20 minutes to familiarize you with Redisson ...

1, Abnormal 1.1 concept of abnormality Exception: it is an abnormal condition that occurs during the execution of the program, which will eventually lead to the abnormal stop of the JVM. In object-oriented programming languages such as java, the exception itself is a class. Generating an exception is to create an exception object and thr ...

Reasons for safety problems in multithreading: When multiple statements are operating on the same thread to share data, one thread only executes part of multiple statements, but not yet   After execution, another thread participates in the execution. The error that caused the shared data.   resolvent:   For state ...

python multithreaded programming (Part 2) Link to previous article: python multithreading (Part 1) preface I saw it at station b Multithreaded video , please share your notes as follows. 1, Introduction to threads 1.1 another form of multitasking In python, multithreading can also be used to implement multitasking 1.2 why multith ...

Usage rule summary Local multiple asynchronous tasks use: queue group or enter Multiple asynchronous tasks on the network use: enter Multiple asynchronous tasks in the network depend on each other and need to be executed synchronously: semaphore Thread safety lock: semaphore Types of multithreading reference resources https://www.jianshu.co ...

I'm Chen PI. I'm an ITer of Internet Coding. I search "Chen Pi's JavaLib" on wechat. I can read the latest article at the first time and reply to [data], so I can get my carefully sorted technical data, e-books, interview data of front-line large factories and excellent resume template. background If you want to do some extra pr ...

brief introduction A thread controller for resource control under multithreading. Much like lock synchronization, the difference between lock synchronization and lock synchronization is that a lock locks a resource, and only one thread can operate the resource at the same time. Semaphore locks a batch of resources. At the same time, only a ...

1, Thread pool creation If you need to use multithreading in your project, be sure to create a thread pool first. Because the thread pool can achieve thread reuse and save the overhead of repeated creation and destruction. Improve performance. Just like the database connection pool used in normal projects. First, let's look at the method of c ...

There are two kinds of thread termination in Posix: normal termination and abnormal termination. Thread actively calls pthread_exit() or return from the thread function will make the thread exit normally, which is a predictable exit method; Abnormal termination means that a thread exits under the intervention of other threads or due to its own ...