fences producer

2016-07-02 Packagecom.java1995;Importjava.util.List;/*** Producer * *@authorAdministrator **/ Public classProducerextendsThread {PrivateListlist; Private intMax; //Construction Method PublicProducer (String name,intMax, listlist) { Super(name); This. Max =Max; This. List =list; } Public voidrun () { while(true) { synchronized(list) { while(list.size () = =max) {System.out.println ("The Warehouse is full"); Try{list.wait ();

) warehouse, and then unlocked by unlock (). (04) in the main thread main, we will create a new 1 producer Mpro and create 1 new consumer MCUs. They produce/consume products separately from the warehouse. According to the number of production/consumption in Main, the final remaining product of the warehouse should be 50. The results of the operation are in line with our expectations! There are two problems with this model:(01) In reality, th

Java Classic question-----producer Consumer/*** Producer Consumer issues * Explanation: Wait Notify method * Difference between sleep and wait * line lock mechanism*/ Public classProducerconsumer { Public Static voidMain (string[] args) {syncstack ss=NewSyncstack (); Producer P=NewProducer (ss); Consumer C=NewConsumer (ss); NewThread (P). Start (); NewThread (c).

//5. Producer Consumer issues#include #include#include#include#defineMAX 50#defineBUFSIZETen //Size of warehouseintbuf[bufsize]={0}; int inch=0; int out=0; Sem_t Full,empty; void* Producer (void*Arg) { inti; for(i =1; ii) {/*Produce*/sem_wait (Full ); buf[inch++]=i; inch%=BUFSIZE; printf ("production of%d products \ n", i); Sem_post (empty); } pthread_exit ((void*)"Thread1 exit\n"); } void* Comsum

1#include 2#include 3#include 4#include 5#include 6 7 #defineNumof_producer 5//The Max Num of producer8 #defineNumof_consumer 10//The Max num of consumer9 #defineMaxnum 10//The Max num of productTenSem_t Empty_sem;//The goal of whether the num of product is null OneSem_t Full_sem;//The goal of whether the num of product is equal to Maxnum A -pthread_mutex_t Mutex;//The goal of whether someone use the buff - the intproducer_id =0; - intconsumer_id =0; - intNownumofproduce =0; - void*

1. Producer Consumer Modelis mainly for decouplingUsing queues to achieve the model of producer consumptionStack: Advanced post-Exit (first in last out abbreviation: FILO)Queue: FIFOImport queueFrom multiprocessing import queue to resolve producer consumption with queue this model queue is secureQ=queue (M)　　Q = Queue (num)Num: Maximum length of the queueQ.get ()

pthread_cond_signal to wake up another thread waiting on a condition variable, or call Pthread_cond_broadcast to wake up all the threads waiting on the condition variable.Ii. using producer-consumer models to illustrateAs the name implies, it can be seen that to achieve this model, first of all, there are two characters (producers, consumers), with two roles, of course, there must be an occasion for two access to the critical resources (an occasion),

Horse soldier Teacher's producer consumer model, I feel understand the producer consumer model, basically understand half multi-threading. Public classProducerconsumer { Public Static voidMain (string[] args) {syncstack ss=NewSyncstack (); Producer P=NewProducer (ss); Consumer C=NewConsumer (ss); NewThread (P). Start (); NewThread (c). Start (); }}classWotou {int

The same is the experimental archive. 。。The issue of producer consumers is still a backdrop.Enhancement (= "Resource Manager") encapsulates the resource and the operation of the resource, and the resource user is OK to manipulate the resource through the interface without having to consider the problem of process synchronization.Enhancement PackageEntity.producerconsumer; Public classmonition {Privatebuffer buffer; PublicMonition (intbuffersize) {Buf

Producers and consumers are the problems that we will often encounter, and today we have time to write the implementation of this scenario. The producer is the one object (usually a thread) that produces some kind of data, and the producer's data is put into a storehouse, the consumer extracts the data directly from the storehouse. The so-called consumer is the object of extracting data from the warehouse, usually another thread. Below is an example o

With Arrayblockingqueue, it is easy to implement both producer and consumer, and all consumer threads share resources arrayblockingqueue objects for thread safety. The producer thread searches the current directory and subdirectories and adds the corresponding file object to the queue , the consumer thread queries the keyword for each file object, and if it checks to the head, it stops the query.　　ImportJav

Implement the producer and consumer model (instance description) by using the Queue instance description In Python, a queue is the most common form of data exchange between threads. The Python Queue module has three queues and constructor functions: 1. The first-in-first-out Queue of the Python Queue module. Class Queue. Queue (maxsize) 2. LIFO is similar to heap, that is, first and then output. Class Queue. LifoQueue (maxsize) 3. The lower the priori

This article mainly introduced the Python condition variable's producer and the consumer operation, combined with the concrete instance form to analyze the python condition variable concept, the principle, and the thread operation related skill, the need friend can refer to the next This paper describes the producer and consumer actions of the Python condition variables. Share to everyone for your referenc

This is a creation in Article, where the information may have evolved or changed. Golang realize multi-producer and multi-consumer: package mainimport ( "fmt" "time")func consumer(cname string, ch chan int) { for i := range ch { fmt.Println("consumer--", cname, ":", i) } fmt.Println("ch closed.")}func producer(pname string, ch chan int) { for i := 0; i Operation Result: D:/Go/pv/pv

Python custom process pool instance analysis [producer and consumer model problems], python instance analysis This article analyzes 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 pool traverses files in the directory from multiprocessing import Process, Queue, Lockimport time, OS # C

) { + - } theSystem.out.println (Thread.CurrentThread (). GetName () + "consumed" + This. Name); *Flag =false; $ This. Notifyall ();Panax Notoginseng } - the } + A /* the * Producer + */ - classProducerImplementsRunnable $ { $ PrivateResource Res; - Producer (Resource res) { - the This. res =Res; - }Wuyi Public v

, will lock to consumers, consumers start spending, when no product can be consumed, consumers wait, The lock is given to the producer and the producer begins production. Define the total production cap max_produce and the maximum capacity per producer (upper limit) max_signle_produce and the maximum amount of consumption per consumer max_single_consume, in parti

;2.3 P, v operation650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/7F/63/wKiom1ccok_A1kosAAAoFPKITfc371.png "title=" capture. PNG "alt=" Wkiom1ccok_a1kosaaaofpkitfc371.png "/>Sem_wait (): Gets the resource (P action-1), which causes the value of semaphore to be reduced by 1, and if the value of semaphore is already 0 when calling Sem_wait (), the wait is suspended. If you do not want to suspend the wait, you can call Sem_trywait ().Sem_post (): Frees the resource (v operation + 1), ad

producer,producer data to the broker, so the initiator is the business system, and the code below can send the data directly. /**配置producer必要的参数*/Properties props = new Properties();必要的一些配置省略。。。/**选择用哪个类来进行序列化，就是我们自定义的消息类*/props.put("serializer.class", "org.kafka.message.UserInfo");ProducerConfig config=new ProducerConfig(props);/**构造测试数据*/ UserInfo userInfo =

Notes for multithreading: 1. This. Wait () and this. Sort y () must be used in pairs; 2. Be careful with sychronized. Be careful when locking or not locking. If you use sychronized, the efficiency may decrease and unexpected results may not be caused. 3. There is a big difference between wait and thread. Sleep:Wait is the method in the object class, and sleep is the method under the thread. Wait indicates that the current thread performs wait... Sleep controls the waiting time before exe