Passing command line arguement to thread functions (C++)
/* Write object oriented program using C++ for passing command line arguement to thread functions and using command line arguement to determine number of threads to be created. Use multicore programming. */ /*Execution: oct@CCOMPL08-10:~$ g++ multicore1.cpp -lpthread oct@CCOMPL08-10:~$ ./a.out 5 5 */ #include<iostream> #include<pthread.h> #include<stdlib.h> using namespace std; void * display(void *param){ //Note the void* and parameter's void* cout<<"Thread created...\n"; cout<<(char*) param<<"\n"; } int main(int argc, char * argv[]) { pthread_t tid[5]; for(int i=0; i<atoi(argv[1]);i++){//C function atoi helps convert (char*) to int pthread_create(&tid[i], NULL, display, (void *) argv[2]); } for(int j=0; j<atoi(argv[1]);j++){ pthread_join(tid[j], NULL); //Here NULL is the return code which is given. } return 0; }