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catalogue Thread synchronization Synchronization method Synchronization block deadlock Lock lock Use form synchronize vs Lock Thread pool Thread synchronization Multiple threads operate on the same resource Concurrency: the same object is operated by multiple threads at the same time Thread synchronization is actually a waiting me ...

Future implementation analysis Or a little demo first @Test public void testFuture() throws ExecutionException, InterruptedException { FutureTask<String> test = new FutureTask<>(() -> { logMessage("I'm going to sleep"); TimeUnit.SECONDS.sleep(5); logMessage("I wake up"); ...

LockSupport is the basic thread blocking primitive used to create locks and other synchronization classes. park() and unpark() in LockSupport are used to block threads and unblock threads respectively 1. Three methods to make threads wait and wake up: 1. Use the wait() method in Object to make the thread wait, and use the notify() method in O ...

Multithreading advanced = JUC concurrent programming 1. What is JUC JUC is short for java.util.concurrent. To sum up in Chinese, JUC means java Concurrent Programming toolkit. The essence of concurrent programming is to make full use of CPU resources. 2. Threads and processes Process: it is a single sequential control process in program e ...

1, Why multithreading? else if(60<xy.x && xy.x<300 && 240<xy.y && xy.y<300)//Enter LCD detection { printf("enter LCD checking\n"); while(1) { lcd_show_color(RED); xy = get_ts_xy();//block else if(700<xy.x && xy.x<800 && 0<xy.y && xy.y<50)// ...

Thread foundation of concurrent programming 1. Understanding threads2. Creation and running of threads 2.1 inherit Thread class and override run method2.2 implement the Runable interface and rewrite the run method2.3 using FutureTask 3. Thread notification and waiting 3.1 wait() function Practical simple producers and consum ...

Function and principle of ThreadLocal We know that Java multithreading has security problems. The main reason is that multithreading accesses a shared data at the same time. Therefore, we have two main ideas to solve the multithreading problem: 1. Lock the shared data 2. Avoid multi-threaded operation of the same shared data Idea 1 is a com ...

C + + language level multi-threaded programming code can cross platform windows/linux/mac Introduction to C + + multithreading thread(Thread class) mutex(mutex ) condition_variable(Communication between threads, condition variables) Smart lock: lock_quard unique_lock atomic Atomic type based on CAS The atomic type of the operation is thread ...

For the array storage version, please refer to the following article: Express management console simple version - array storage Version (Java) For the List collection storage version, please refer to the following article: Express management console simple version - List collection storage Version (Java) For Map collection ...