Shulou(Shulou.com)06/02 Report--

This article introduces the knowledge of "the usage of mutex and lock in C++". Many people will encounter this dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Mutex is used to help control concurrent access to resources in an exclusive way, where the resource may be an object or a combination of multiple objects. In order to gain exclusive access to resources, the corresponding thread must lock the mutex, which can prevent other threads from locking the mutex.

If the following two threads did not use mutex to synchronize, the output would be 112233.

Mutex g_mutex

Void print123 ()

{

G_mutex.lock ()

For (int I = 0; I < 3; iTunes +) {

This_thread::sleep_for (chrono::milliseconds)

Cout

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