phish thread

from: http://kb.cnblogs.com/page/42531/In multi-threaded programs, there are often two situations:One scenario: In an application, a thread spends most of its time waiting for an event to occur before it can respondThis is generally solved by using threadpool (thread pool);Another scenario: The line accesses tile is dormant, but is periodically awakenedThis is usually solved by using a timer (timer);The Thr

What is thread-safe and non-thread safe?Thread safety is the case that there is no data inconsistency in a multithreaded environment, and there is a risk of inconsistent data for non-thread safety.Thread safety controls the read and write of resources to ensure data consistency, in other words, increases the overhead o

Life cycle: Threads also have a life cycle, and there are different states, transitions between states.New state, ready state, running state, blocking state, dead state.Someone puts the blocking state, the wait state, and the timing wait state together called the blocking state .The state of the thread object is stored in the inner class of the thread class:Note: The Thread.state class is actually an enumer

This chapter describes the lifecycle of a thread pool. In the "Java multi-thread series-" basic articles "01 Basic Concepts", we have introduced five States of threads: new state, ready state, running state, and blocking state, death status. The thread pool also has five States. However, the thread pool is different fr

Tags: style color using strong OS ArtWhen you try to update a win form from a separate thread, you get the following error message:"Cross-thread operation not Valid:control ' progressBar1 ' accessed from a thread other than the thread it was created On. "This article describes how to handle this error:Problem:reproduce

Thread priority preemption experiment [RT-thread Study Notes 3], rt-Thread Study Notes At the same time, the thread is in the ready state and runs first with a higher priority. When a high-priority task is ready, the low-priority task gives way to the CPU, so that the high-priority task is executed first. Create two ta

Create a Windows application and use multiple threads to scan a computer in a CIDR block. Obtain the DNS domain name based on the IP address of the computer. If the computer is not online, a prompt is returned. The initial interface is required. After you enter the IP address range, click scan to automatically display the DNS information of each IP address in listboxstatus. The specific requirements are as follows: (1) Verify the selected IP address range. If it is not a valid IP address, a pro

Synchronization: The concept of object locks. If multiple threads share an object, the operating system generates a lock for each object with one word, and the lock and object one by one correspond. If a thread wants to manipulate an object, it must get the lock on the object.Lock: Synchronous Statement or synchronization method (a synchronous statement is used here). Resolves an interaction thread with tim

Java foreground thread and background thread Last blog in the Main () method, after creating and starting four new threads, the code in the main () method completes, at which point the method ends and the main thread ends. The results of the program can be seen, although the main thread ended, but the entire Java prog

Introduction to asynchronous Task programming, Thread multi-Thread programming, and task multi-Thread programming When I was a beginner, I searched online. I saw many articles with titles related to replacing thread with tasks. I always thought that Task and thread are the s

[Csharp]Thread tr = null;Delegate void Methinvoker ();Private void btSeInfo_Click (object sender, EventArgs e){Tr = new Thread (new ThreadStart (SeleInfo ));Tr. IsBackground = true;// Tr. SetApartmentState (ApartmentState. STA );Tr. Start ();Thread tr1 = new Thread (new ThreadStart (StartThreadCaiji ));Tr1.Start ();}Pr

Python MultithreadingMultithreading is similar to executing several different programs at the same time, multithreaded operation has the following advantages: Threads can be used to place tasks that occupy a long period of time in the background to be processed. User interface can be more attractive, such as the user clicked a button to trigger the processing of certain events, you can pop up a progress bar to show the progress of processing The program may run faster Thread

1. Introduction to Thread Priority The range of thread priorities in Java is 1~10, and the default priority is 5. High priority threads take precedence over low priority threads. There are two kinds of threads in Java: The user thread and the daemon thread. They can be distinguished by the Isdaemon () method: If retu

Some problems often occur when you operate interface controls or components in multiple threads. When we operate controls in multiple threads, we generally use the followingCode. Delegate void msgdel (string Str); protected void msgevent (string Str) {If (txtcontent. invokerequired) {txtcontent. begininvoke (New msgdel (msgevent), STR); return;} txtcontent. TEXT = STR ;} However, during the debug operation, I still encounter problems such as "cross-thread