mutex object

Link: http://hi.baidu.com/reversefish/blog/item/7e2ddb1e4f11a11740341716.html   Control Methods for mutual exclusion of four processes or threads1. critical section: accesses public resources or code segments through multi-thread serialization,

Document directory Content directory Applicable scenarios of outputdebugstring:At the same time, multiple application processes (producers) can send debugging information. Only one debugging process (consumer, egdebugview, and vs2005) can be

In Linux, the thread read/write lock has a write-first read/write lock, which has the following features: 1) Multiple readers can read at the same time 2) The writer must be mutually exclusive (only one writer is allowed to write, nor can the reader

1. Create a mutex object Create a mutex object in project project1.dpr Program project1 Uses Windows, form, Frmmain in 'frmmain. pa' {mainform }; {$ R *. Res} VaR Happmutex: thandle; // declare the mutex variable Begin Happmutex: = createmutex (nil,

The popular process thread synchronization and mutex control mechanism is actually implemented by the four most primitive and basic methods:1. critical section: provides high-speed access to public resources or code by serializing multiple threads

WaitforsingleobjectThis function returns when the specified object is in the signal or wait for the end of time.DWORD waitforsingleobject (Handle hhandle,DWORD dwmilliseconds);Parameters:Hhandle: Specifies the handle of an object or

1) create a threadMsgThread: = TMsgThread. Create (False); // Create and execute a threadMsgThread: = TMsgThread. Create (True); // The thread is suspended after being created.Constructor Create (createsu0000ded: Boolean); The createsu0000ded

　[It168]The wince system is a multi-task operating system. Generally, multi-tasking is implemented through multithreading and multi-process mechanism. Therefore, to master the techniques and methods of multi-process and multi-thread, it is necessary

Thread Synchronization can be divided into user-mode thread synchronization and Kernel Object thread synchronization.The critical section is a user-mode thread synchronization. It can only be used for multi-thread synchronization in a

ArticleDirectory Content directory Translation: Win32 "outputdebugstring" Strong Win32 developers may Outputdebugstring () You are familiar with API functions. Program Talk to the debugger. It is

(1) create a threadMsgthread: = tmsgthread. Create (false); // create and execute a threadMsgthread: = tmsgthread. Create (true); // The thread is suspended after being created. Constructor create (createsu0000ded: Boolean); The createsu0000ded

Spin lock------------------------------------------------------Spin lock is a kind of lock designed to prevent multi-processor concurrency. itIn the kernel, it is widely used in interrupt processing and other parts (for a single processor, to

Features Mutex Key Section Performance Slow Block Cross-process availability Yes No Statement Handle hctx; Critical_section Cs; Initialization Hctx = createmutex (null, false, null );

I didn't mean to mess up your mood, but in this column we will discuss the topic of multi-threaded programming. As mentioned in the previous generic, writing exception-safe programs is very difficult, but compared with writing multi-threaded

Perhaps, this article will give you a comprehensive understanding of the operating system! Before reading this article, we recommend that you read "create four computers by yourself ". Directory: 1. What kind of States are involved in the process,

[Java concurrent programming practice] ----- basic thread concepts, java ----- I have been learning Java concurrency for more than a month. I feel that I will forget some things after I have learned it for a while. I have made some notes but not the

The previous generation example shows if you call a type of Dispose or Close method. If you decide to explicitly call one of these two methods, it is strongly recommended that they be placed in an exception-handling finally block. This ensures that

Compiler Error:Parameter 3 cannot be converted from "const char [8]" to "LPCWSTR" and changed to LPCWSTR typeChange method:Hmutex=createmutex (null,true,l "tickets")You just need to add a capital L to the third argument, which is preceded by the

Critical section (critical area)Only one thread is allowed to access the shared resource at any time. If more than one thread attempts to access the critical section at the same time, all other threads that attempt to access this critical section

We use the "PowerWord" found that in the "PowerWord" has been running the case, click on the "Kingsoft PowerWord" icon, then it will not run another "PowerWord", but will have "PowerWord" to activate, always can only run a "PowerWord" example.In our