Programming

#include "training.h"
#include <mqueue.h> // for posix mqs

int main(int argc,char *argv[])
{

    
    int opt,flag;
    mqd_t msq; // msg q type
    flag=O_RDWR|O_CREAT;

    while((opt =getopt(argc,argv,"e")) != -1)
    {
        switch(opt)
        {
            case 'e':
                flag|=O_EXCL;
                break;
        }
    }
    // option indicator should be one less than what is passed
    if(optind != argc -1)
    {
        fprintf(stderr,"usag: msqcr -e <name>\n");
        return 1;
    }
    msq =mq_open(argv[optind],flag,0666,NULL);
    mq_close(msq);


}

gcc myprog.c -o myprog -lrt

gcc mqcreate.c -L/opt/imq/lib -lmqcrt