mutex object

When we need to control access to shared resources, we can use a simple lock-up method to control. We can create a read / write program that shares a shared buffer and uses a mutex to control access to the buffer. 　The function pthread_mutex_init ()

To use a mutex object:#include #include #define ThreadCount 6HANDLE Ghmutex;dword WINAPI runthreadfunction (LPVOID lpparam); int main (void) {HANDLE athread[threadcount]; DWORD ThreadID; Create a mutex with no owner Ghmutex = CreateMutex (

# #占位#include #includeintTickets = -; HANDLE Hmutex;dword WINAPI FunProc1 (lpvoid param) { while(TRUE) {WaitForSingleObject (Hmutex, INFINITE); if(Tickets >0) {Std::cout"Thread1 Sell ticket:"Std::endl; } Else Break;

There have been two multi-threaded methods of synchronization before: CriticalSection (critical area) and mutex (mutex), these two synchronization methods are similar, but the scope is different; The CriticalSection (critical area) is similar to a

There is no problem with synchronizing threads when you are writing a multi-threaded program. What is thread synchronization?For example, if there is a variable in a company that records the salary of a person's T, there are two supervisors A and B (

Code: public class Syshashmao { Private static map map= Collections.synchronizedmap (New hashmap ()); public static void Main (string[] args) { Map.put ("11", "11"); Map.get ("11"); }}SOURCE interpretation: You can see that

How to create a thread object:The thread class is created directlyImport Threadingimport timedef countnum (n): # defines a function for a thread to run print ("Running on number:%s"%n) Time.sleep (3) if __ name__ = = ' __main__ ': t1 =

//Sets the dialog box iconsInlinevoidCmfc_core_1dlg::chsetdlgicons (HWND hwnd,intidi) {:: SendMessage (hwnd, Wm_seticon, Icon_big, (LPARAM) LoadIcon (hinstance):: Getwindowlongptr (hwnd, GW lp_hinstance), Makeintresource (IDI)); ::

First, what is a threadA thread is a control flow in a single order in a process. Also known as light weight process (lightweight processes). Computer Science terminology refers to the scheduling unit of a running program.A standard thread consists

When you are sharing objects in multi-threaded processing, multiple threads can modify the same object at the same time, possibly in an inconsistent state, and be aware of it when used. Example: Test.rb x = 010.times.map do |i| Thread.new do

Make a small summary:What is the key segment, the mutex, the event, and the semaphore, if we are to compare things in real life?The sense event is like a pause continuation key,WaitForSingleObject is pausedSetEvent is the continuation can be

The lock keyword can be used to ensure that a block of code is run, and the parameter supplied to the lock keyword must be a reference-type-based object used to define the scope of the lock. The lock keyword is generally preferable to using the lock

title: Child Thread LoopingTensecond, followed by the main thread loop -times, and then back to the child thread loopTentime, then back to the main thread and loop. -times, so cycle -times, try to write the code. [CPP]View Plaincopyprint?

Reprint Please specify source: http://blog.csdn.net/suool/article/details/38582521.Basic concepts and principlesMutexes can resolve mutually exclusive access to resources, but in some cases, mutual exclusion does not solve the problem, such as two

Concept distinction: java.util.Collection and java.util.Collections differences: 1, Java.util.Collection is a collection interface (a top-level interface of the collection Class). It provides a common interface method for basic operations on a

"The semaphore is synchronized with multi-threaded multitasking, and one thread completes an action by telling the other thread that the other thread is going to do some action (where everyone is blocking when they are semtake)." The mutex is used

One advantage of using multiple threads in an application is that each thread can execute asynchronously. For Windows applications, time-consuming tasks can be performed in the background, allowing application windows and controls to remain

When writing multithreaded programs, multiple threads accessing a shared resource at the same time can cause synchronization problems, and in this article we will cover data protection in c++11 multithreaded programming.Data Loss Let's start with a

Let's start with a simple code to understand the problem.Sync Problem We use a simple structural body Counter, which contains a value and a method to change this value: struct Counter { int value; void Increment () { ++value; } }

1, critical area: Through the serialization of multithreading to access public resources or a piece of code, fast, suitable for controlling data access. Only one thread is allowed to access the shared resource at any time, and if more than one