mutex object

  Although multithreading can bring us benefits, there are also many problems to solve. For example, for a dedicated system resource such as a disk drive, because the thread can execute any code segment of the process and the thread runs

Process Is an executable Program By private virtual address space, Code Data and other operating system resources (such as files, pipelines, and synchronization objects created by processes. An application can have one or more processes. A process

1.1 Thread Synchronization Overview Without the ability to synchronize objects and operating systems to monitor special events, threads may be forced to use technologies with side effects to synchronize themselves with special events. Without

I. multi-threaded Architecture The main thread creates all the windows required by the program and includes all the window processes to process all the messages in these windows. Other threads only perform background processing, except for

In Windows, the program prevents multiple common methods:1) Use the findwindow API function.You can query the window title (or/and Class Name) to determine whether the program is running. If it is found, it indicates that the program is running, and

Address: http://www.cnblogs.com/zhangronghua/archive/2006/11/17/564085.html Idea: You can have a variable to indicate whether the program has been started! 1. Use the Registry... When the program is started for the first time, a node (custom name)

Wait for timer kernel eventCreateWaitableTimer (Psecurity_attributes PSA,BOOL Fmanualreset,Pctstr pszname);The process can get its own handle to the existing waiting timer associated with the process.HANDLE Openwaitabletimer (DWORD

Turn from: C + + uses the thread class for multithreaded programmingA thread class for multithreaded operations is introduced in C++11, and the following is a simple demonstration of how to use it, and if multithreading is synchronized.

Support for multi-threaded synchronization and mutex operations in Windows environments consists of four main ways: critical section (CriticalSection), mutex (mutex), Semaphore (Semaphore), event object. The following are descriptions of these four

There are two ways to terminate a thread in Linux, one is to return from a thread function by calling return, and the second is to call a function#includeVoidpthread_exit (void *retavl);Note: First, if the main thread is returned from the main

The event object in the kernel object of the system is commonly used when synchronizing between processes and threads, discovering that it has two departure functions, one is setevent, and the other is a pulseevent,The difference between the two

On the forum, a netizen asked me about the mutex volume. I made some modifications,CodeAs follows: Int main () {handle hmutex = createmutex (null, false, null); waitforsingleobject (hmutex, infinite); waitforsingleobject (hmutex, infinite ); printf

1. There is a problem with the mutex: mutexes are the necessary tools for threaded threads, but they are not omnipotent. For example, what happens if a thread is waiting for a condition in the shared data to appear? It can repeatedly lock and unlock

Document directory 1. Basic concepts of the thread, the basic state of the thread, and the relationship between states. 2. Differences between threads and processes 3. Thread Synchronization and mutex 4. Causes of deadlocks and how to avoid

Control Methods for mutual exclusion of four processes or threads1. critical section: accesses public resources or code segments through multi-thread serialization, which is fast and suitable for controlling data access.2. mutex: designed to

Introduction The two basic problems of inter-thread communication are mutual exclusion and synchronization. Thread Synchronization is a type of constraint between threads. The execution of one thread depends on messages of another thread. When

This article mainly describes the thread synchronization method in C. There are a lot of online information about the basic concepts of threads. Thread Synchronization is inevitable in multi-threaded applications. In. in the Net Framework, thread

Private manualresetevent _ isserverclosed = new manualresetevent (false ); Private void startthreads (){// Generate four ABCD threadsFor (INT I = 0; I {System. Threading. thread t = new thread (New threadstart (receivedata ));T. Start ();}} //

First mutex objectCreatemutex (,,)The first parameter is the security level, and null is the default value.The second parameter is the owner, and false indicates that there is no owner.The third parameter is a mutex object, and null is anonymous (if

Several methods to achieve mutually exclusive program runningMethods for implementing mutually exclusive program running1. Implementation under VC Visual c ++ is the most important and powerful programming tool for Win32 programming. To cite a name,