Example of thread response keyboard key

Example 1: Keyboard input characters are queued and one thread is processed.

#include <iostream>#include<stdio.h>#include<pthread.h>using namespacestd;CharCH =0;p thread_t tid;void*thread_func (void*Arg) {         while(true) {ch=GetChar (); Sleep (1); }}intMain () {//pthread_t tid;        if(Pthread_create (&tid, NULL, THREAD_FUNC, NULL)! =0) {cout<<"Create thread error\n"; return-1; }         while(1)        {                if(ch=='P'|| ch=='P') {cout<<"Keboard: '"<<ch<<"': Print"<<Endl; CH=0; Continue; }Else if(ch=='Q'|| ch=='Q') {cout<<"Keboard: '"<<ch<<"': Exit"<<Endl;  Break; }        }        return 0;}

Output Result:

[email protected] thread]#./a.out
P
Keboard: ' P ': print
P
P
Op
Keboard: ' P ': print
Keboard: ' P ': print
Keboard: ' P ': print
Pppppq
Keboard: ' P ': print
Keboard: ' P ': print
Keboard: ' P ': print
Keboard: ' P ': print
Keboard: ' P ': print
Keboard: ' Q ': Exit

[email protected] thread]#./a.out
P
Keboard: ' P ': print
^c

Example 2: Examples of signals and threads together

#include <iostream>#include<stdio.h>#include<pthread.h>#include<signal.h>using namespacestd;CharCH =0;//SignalvoidHandle_sigint (int) {printf ("[Singal]: catched ctrl+c\n"); CH='Q';}//pthreadpthread_t tid;void*thread_func (void*Arg) {         while(true) {ch=GetChar (); Sleep (1); }}intMain () {//Signal        structsigaction Sig; Sig.sa_handler=Handle_sigint; Sigemptyset (&sig.sa_mask); Sig.sa_flags=0; Sigaction (SIGINT,&Sig, NULL); //pthread_t        if(Pthread_create (&tid, NULL, THREAD_FUNC, NULL)! =0) {cout<<"Create thread error\n"; return-1; }         while(1)        {                if(ch=='P'|| ch=='P') {cout<<"Keboard: '"<<ch<<"': Print"<<Endl; CH=0; Continue; }Else if(ch=='Q'|| ch=='Q') {cout<<"Keboard: '"<<ch<<"': Exit"<<Endl;  Break; }        }        return 0;}

Output Result:

[Email protected] thread]#./a.out
P
Keboard: ' P ': print
P
P
Keboard: ' P ': print
Keboard: ' P ': print
Q
Keboard: ' Q ': Exit

Example of thread response keyboard key