producer names

condition::timedwait (int seconds) {//Gets the current time of the struct timespec abstime; Clock_gettime (Clock_realtime, abstime); The current time plus the number of seconds to wait, constituting an absolute time value abstime.tv_sec + = seconds; Return pthread_cond_timedwait (m_cond, m_mutex, abstime);} int Condition::lock () {return pthread_mutex_lock (m_mutex);} int Condition::trylock () {return pthread_mutex_trylock (m_mutex);} INT Condition::unlock () {return pthread_mutex_unlock

The rookie encounters the signal volume, rubs the spark (only then will have the spark if not ripe). So the Internet search information and see "UNIX Environment Advanced Programming" to achieve a few small examples, master do not spray! These are very well written:Title Source: http://www.it165.net/os/html/201312/7039.htmlSignal volume and usage: http://www.cnblogs.com/hjslovewcl/archive/2011/03/03/2314341.htmlThe distinction between mutexes and semaphore famous toilet theory: http://koti.mbnet

#-*-coding:utf-8-*-"""multi-threaded producer, consumers using queue queues"""ImportQueueImportThreadingImport TimeImportRandomqueue= Queue.queue (3)#Create a queue of 3 sizesclassProducer (Threading. Thread):"""producers, writing data to the queue""" def __init__(self, queue): Super (Producer, self).__init__()#calling the parent class constructorSelf.queue =QueuedefRun (self): whiletrue:my_rand_double=r

I. Purpose of the experimentImplement a C program that simulates solving a limited buffering problem where consumers and producers generate and consume random numbersTwo. Experimental content Buffer The metadata type is Buffer_item, an array of size 1000, processed by the ring queue Producer and Consumer Threads Producers continue to perform the following two operations: consume a random number and produce two random number

This article describes the Java multithreading solution to the problem of producer consumers. Share to everyone for your reference. The specific analysis is as follows: The title is this: Adopt Java Multithreading Technology, design and implement a program that conforms to the problem of producer and consumer. Operates on an object (the barrel) with a maximum capacity of 12 bullets. A

Use Win32API to synchronize producer and consumer threads Use win32 API to create a thread and create a semaphore for Thread Synchronization Create semaphores Syntax: HANDLE semophore;semophore = CreateSemaphore(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName); The following is a prototype of the CreateSemophore function: Handle winapi CreateSemaphore (_ In_opt _ LPSECURITY_ATTRIBUTES lpSemaphoreAttributes, // attribute _ In _ LONG lIn

This article mainly introduces the Python custom process pool, and analyzes the producer and consumer models implemented by Python using the custom process pool with examples, you can refer to the examples in this article to analyze the Python custom process pool. We will share this with you for your reference. The details are as follows: Code description: # Encoding = UTF-8 # author: walker # date: 2014-05-21 # function: the user-defined Process p

　　Reprint Please specify the Source: http://www.cnblogs.com/xiaodf/This example shows a simple implementation of the ROCKETMQ producer, which obtains input data by parsing a text file and sends the data to ROCKETMQ after Avro serialization.The program obtains the main parameter value through the Stdin.xml configuration file, the Stdin.xml file contents are as follows:　　The Producer sample program is as f

Producer and consumer model The producer and consumer modes are shown in. Blog purpose: Use graphs to speak. Sample Code: Package com. huan; public class ProduceConsumer {public static void main (String [] args) {Middleware middleware = new Middleware (); new Thread (new Producer (middleware )). start (); new Thread (new Consumer (middleware )). start () ;}} cl

Producer, consumer, fixed-length buffer, and thread can be interrupted externally Import java. util. arrays;Import java. util. date;Import java. util. Collections list;Import javax. Swing .*; Public class producerconsumer { Public static jframe inst; Public static void main (string [] ARGs ){ Bufferlock buffer = new bufferlock ();Controlcondition indexcontrol = new controlcondition (); (New indextimedialogthread (indexcontrol). Start ();(New

In the previous article, we used semaphores to achieve mutual exclusion between threads. This article uses the mutex synchronization mechanism of semaphores to implement a classic instance, that is, "producer and consumer ". 1. Briefly describe the problems of producers and consumers. There is a buffer and two threads: producer and consumer. The producer places t

Use Win32 API to synchronize producer and consumer threads. Use win32 API to create a thread and create a semaphore for Thread Synchronization Create semaphores Syntax: HANDLE semophore;semophore = CreateSemaphore(lpSemaphoreAttributes, lInitialCount, lMaximumCount, lpName); The following is a prototype of the CreateSemophore function: Handle winapi CreateSemaphore (_ In_opt _ LPSECURITY_ATTRIBUTES lpSemaphoreAttributes, // attribute _ In _ LONG l

Java: producer and consumer issues I remember the first time I made a java question, I saw "Writing producer and consumer problems" and thought it was related to the factory model. Now, I think it's a crash.Java producer and consumer issues are actually about multi-thread concurrent operations on the same resource buffer. When the resource buffer is full and the

Package Xiancheng;/*** Wait () Waits, release lock sleep does not release lock* @author User**/public class Lianxi20 {T producer production notice consumption F consumer consumption notice productionPrivate Boolean flag=true;Simulation of the production of goodsPrivate String picstring;ProductionPublic synchronized void Play (String picstring) {When flag is false, the producer stops working and enters the w

elements at the same time. You can view the elements in sequence from beginning to end. First, check whether key1 has elements. If yes, return,If no key is available, view key2, and so on. If all the queues with the specified key are empty, the blocking mode is enabled. During the blocking process, any list contains content and will be returned immediately. Because blpop can specify multiple keys, when a command is returned, it must indicate that the elements of the key are returned. The return

Package cn.test.hf.test3;Import java.util.concurrent.locks.Condition;Import Java.util.concurrent.locks.ReentrantLock;public class Factoryutils {Private Resource Resource;private int producerid = 1;Can be re-entered lockReentrantlock lock = new Reentrantlock ();Condition producerscondition = Lock.newcondition ();Condition customerlockcondition = Lock.newcondition ();Factoryutils () {Resource = new resource ();Resource.setid (0);Resource.setflag (TRUE);}/*** Production*/public void Producerresourc

RabbitMQ Basic IntroductionRABBITMQ's design philosophy is. Whenever there is a queue to receive messages. The message will be stored in the queue. Until subscribers are taken away. . If there is no message queue that can receive this message. The default is to discard this message.My function is to implement the remote implementation of the twoPublisher:Is the producer of message, publisher this clients produces some message.Consumer:Message consumer

The classic producer consumer problem simulation. This program simulates the simplest case-single buffering. In order to simulate the actual situation, the consume item and the produce item were added with the delay, and the different generation consumption rate could be simulated by modifying the delay. [Code] [/co/*** Single buffer consumer-producer problem.* by Xu (xusiwei1236@163.com).* */public class

Copy Code code as follows: Package condition; Import java.util.ArrayList;Import java.util.List;Import java.util.concurrent.locks.Condition;Import Java.util.concurrent.locks.Lock;Import Java.util.concurrent.locks.ReentrantLock; /*** Using lock and condition to realize producer consumer model* @author would**/public class Producerconsumerdemo {public static void Main (string[] args) {int producercount = 10;int consumercount = 15;Final Produce

Tags: User ase mode Cache code log SHM nbsp inf1.1 RequirementsDatabase 3 million user data, traverse get all users, various combinations associated, get to a new JSON, save to Redis.1.2 DifficultiesDatabase is much more, it is impossible to single-threaded query all the data to memory.1.3 SolutionsMulti-threaded reading, the producer gets 200 data each time, the consumer goes to consume. (This is mainly based on MySQL paging to get the next 200 data)