Method to implement the low -delayed primitive concurrent queue in the java class library
Low latency original concurrent queue is an important tool in the Java class library. It can use in high -compliance multi -threaded applications to achieve security data exchange between threads.This article will introduce how to achieve low -delayed primitive concurrent queues and provide corresponding Java code examples.
** 1. What is low delayed original concurrent queue?**
Low delayed original concurrent queue is a data structure with the characteristics of thread security and can share data efficiently between multiple threads.Its goal is to provide lower latency, that is, the data time from one thread to another thread is as short as possible to meet the real -time needs of high concurrent applications.
** 2. Steps to achieve low delayed original concurrent queue **
The following is a general step to achieve low delayed original parallel queue:
** Step 1: Define the capacity of the queue **
First, the capacity of the queue needs to be determined, that is, the number of elements that can be stored in the queue at the same time.
** Step 2: Define the data structure of the queue **
Secondly, the queue data structure needs to be defined, and data structures such as array or linked lists can be used to store elements.
** Step 3: The operation of the team to implement data **
When the data enters the team, it is necessary to consider thread security.You can use mechanisms such as locks or atomic operations to realize data security insertion.
** Step 4: The operation of the data to achieve data **
When realizing the operation of the data, it is also necessary to consider thread security.The locks or atomic operations can be removed to achieve the security removal of data.
** 3. Low latency of the Java code example of the original concurrent queue **
Below is a simple low -delayed primitive java code example:
import java.util.concurrent.atomic.AtomicInteger;
public class LowLatencyConcurrentQueue<T> {
private final int capacity;
private final Object[] queue;
private final AtomicInteger head;
private final AtomicInteger tail;
public LowLatencyConcurrentQueue(int capacity) {
this.capacity = capacity;
this.queue = new Object[capacity];
this.head = new AtomicInteger(0);
this.tail = new AtomicInteger(0);
}
public boolean enqueue(T item) {
int currentTail = tail.get();
int nextTail = (currentTail + 1) % capacity;
if (nextTail != head.get()) {
queue[currentTail] = item;
tail.set(nextTail);
return true;
}
return false;
}
public T dequeue() {
int currentHead = head.get();
if (currentHead != tail.get()) {
T item = (T) queue[currentHead];
queue[currentHead] = null;
head.set((currentHead + 1) % capacity);
return item;
}
return null;
}
}
The above code uses atomic operation to ensure thread security. It is used to store queue elements through a cycle array, and uses two pointers Head and TAIL to achieve the operation and team operations.When the Enqueue method is not over, the element is inserted into the tail of the queue and updated the TAIL pointer; the Dequeue method removes the head element and updates the head pointer when the queue is not empty.
**Summarize**
Low latency original concurrent queue is an important component in the Java class library, which is suitable for high -combined multi -threaded applications.This article introduces the implementation steps of the low -delayed original concurrent queue, and provides a simple Java code example.It is hoped that readers will have a deeper understanding of the low -delayed primitive concurrent queue through the introduction of this article.
