ChillDev Commons Concurrent: The lock mechanism and synchronization primitive inquiry in the Java class library
ChillDev Commons Concurrent: The lock mechanism and synchronization primitive inquiry in the Java class library
preface:
In Java development, multi -threaded programming is a common challenge.Treatment of shared resources and concurrency access between threads may cause various problems, such as competitive conditions, dead locks and data inconsistent data.To solve these problems, the Java class library provides many lock mechanisms and synchronous primitives.One of the powerful and widely used libraries is ChillDev Commons Concurrent.This article will explore the lock mechanism and synchronization primitive in ChillDev Commons Concurrent to help developers better understand these concepts and provide specific Java code examples.
Introduction
ChillDev Commons Concurrent is an open source Java class library, which aims to provide powerful and easy -to -use multi -threaded programming tools.It is based on the Java packet, and provides higher -level abstraction and tools to simplify concurrent programming tasks.This library has a wide range of functions, including locking mechanisms, synchronous primitives, and settings of the security of the contains and threads.In this article, we will focus on the lock mechanism and sync of ChillDev Commons Concurrent.
Second, the lock mechanism in ChillDev Commons Concurrent
1. ReunrantLock: ReentrantLock:
Re -incoming lock is an exclusive lock that allows the same thread to obtain the same lock multiple times.This allows threads to lock and unlock operations on the same resource to avoid the occurrence of dead locks.Below is an example of using a re -entered lock:
import com.chilldev.commons.concurrent.ReentrantLock;
ReentrantLock lock = new ReentrantLock();
public void performTask() {
lock.lock();
try {
// Execution requires synchronous operations
} finally {
lock.unlock();
}
}
2. Readwritelock:
Reading and writing locks are a lock that divides the interviews of shared resources into two types: reading and writing.Reading locks are shared and can be held by multiple threads at the same time, while writing locks are exclusive, and can only be held by one thread.This mechanism can improve concurrency performance in the scene where more writing.The following is an example of using read and writing locks:
import com.chilldev.commons.concurrent.ReadWriteLock;
ReadWriteLock rwLock = new ReadWriteLock();
public void readResource() {
rwLock.readLock().lock();
try {
// Read sharing resources
} finally {
rwLock.readLock().unlock();
}
}
public void writeResource() {
rwLock.writeLock().lock();
try {
// Modify sharing resources
} finally {
rwLock.writeLock().unlock();
}
}
Third, synchronous primitives in ChillDev Commons Concurrent
1. Synchronous blocking queue (synchronizedBlockingQueue):
Synchronous blocking queue is a thread security queue implementation, which supports synchronous insertion and removal operations.The insertion operation will be blocked when the queue is full, until there is space available, and the removal operation will be blocked when the queue is empty until there is elements.The following is an example of using the synchronous blocking queue:
import com.chilldev.commons.concurrent.SynchronizedBlockingQueue;
SynchronizedBlockingQueue<String> queue = new SynchronizedBlockingQueue<>();
public void producer() throws InterruptedException {
queue.put("item");
}
public void consumer() throws InterruptedException {
String item = queue.take();
}
2. Synchronous counter (synchronizedCounter):
Synchronous counter is a thread -safe counter implementation that can be used for counting operations in multi -threaded environments.It provides an increased and reduced operation of atomic.The following is an example of using synchronous counter:
import com.chilldev.commons.concurrent.SynchronizedCounter;
SynchronizedCounter counter = new SynchronizedCounter();
public void increment() {
counter.increment();
}
public int getCount() {
return counter.getCount();
}
in conclusion:
ChillDev Commons Concurrent is a powerful and easy -to -use Java class library that provides many lock mechanisms and synchronous primitives to help developers handle concurrent access and resource sharing in multi -threaded programming.This article introduces some important lock mechanisms and synchronous primitives in ChillDev Commons Concurrent, and provides corresponding Java code examples.Using these advanced abstraction and tools, developers can more easily write safe and efficient multi -threaded code to improve the performance and scalability of applications.
