Programmer Think

Reference materials: Bird brother's Linux private dishes: Basic Edition, Liu Chao's interesting talk about Linux operating system, UNIX/Linux system management technical manual, 4th Edition, in-depth understanding of Linux kernel, 3rd Edition, advanced programming in UNIX environment, 3rd Edition, Linux kernel source code scenario analys ...

1, Understanding of AbstractQueuedSynchronizer AbstractQueuedSynchronizer Abstract queue synchronizer is called AQS for short. It is the basic component to implement the synchronizer. juc the following Lock implementation and some concurrency tool classes are implemented through AQS. AQS will form all request threads into a CLH queue. When a ...

1. AQS The full name is AbstractQueuedSynchronizer, which is the framework for blocking locks and related synchronizer tools. It is characterized by the state attribute representing the state of the resource (exclusive and shared), and subclasses that define how to maintain this state and control how locks are acquired and released. 1. getState ...

1. Basic features of DelayQueue public class DelayQueue<E extends Delayed> extends AbstractQueue<E> implements BlockingQueue<E> DelayQueue delay queue has the characteristics of unbounded queue, blocking queue and priority queue. Let's look at the following separately: Unbounded queue: put the task object to be execute ...

Foreword: The code in this article is based on JDK1.8 ​ Thread Insecure List java.util.LinkedListjava.util.ArrayList ​ Thread-safe List java.util.VectorJava.util.Stack (a subclass of Vector that encapsulates Vectors and can only do a FIFO stack operation)Java.util.Collections.SynchronizedList (a static internal class in Collections)java ...

Four principles of thread synchronizationMinimum sharing of objects, reducing the need for synchronizationUse advanced concurrency components, such as TaskQueue, producer consumer queue, CountDownLatch, etcWhen you have to use the underlying synchronization primitive, only use non recursive mutexes and conditional variables. Use read-write lock ...

Absrtact: since JDK 1.5, the exchange class provided under the JUC package can be used to exchange information between two threads. This article is shared from Huawei cloud community< One line of Java code enables two players to exchange equipment [concurrent programming] >, author: JavaLib of Chen PI. 1 what is exchange Since JDK 1.5 ...

introduction In< (12) A thorough understanding of the product of JUC divide and conquer thought of concurrency -- an analysis of the principle of ForkJoin branch merger framework part I >In, we had a preliminary understanding of the use of ForkJoin branch merging framework, and also analyzed the membership of the framework and the princi ...

1. About design patterns Design pattern Some writing methods of the code (these writing methods are different from the conventional writing methods), so that the program written by the code is flexible and easy to maintain, but others take over and read the code is very painful.The code written with the concept of "design patter ...

1,unique_lock replaces lock_guard unique_lock Is a class template. In work, lock is generally used_ Guard (recommended); lock_guard replaces lock() and unlock() of mutex;unique_lock is better than lock_ The guard is much more flexible; The efficiency is a little poor, and the memory takes up a little more.In normal use, there is no d ...