option snippet

randomshit.c

typedef enum {
    create,
    update
} THREAD_STORE_OPTION;

void thread_store(THREAD_STORE_OPTION opt) {
    FILE *fptr;

    if (opt == create) {
        if(access("/dev/shm/linkup-varstore/thread_count", F_OK) != -1) { // if file doesn't exist
            if(system("mkdir /dev/shm/linkup-varstore") <= -1) {
                printf("possible system() error : %s (Error code %d)\n", strerror(errno), errno);
                errno = 0; // keeping errno fresh incase current function didn't call it
            }
        }
    }

    if (opt == update) {
        remove("/dev/shm/linkup-varstore/thread_count");
        if(system(appendcmd) <= -1) { //update file with new value
            printf("possible system() error : %s (Error code %d)\n", strerror(errno), errno);
            errno = 0; // keeping errno fresh incase current function didn't call it
        }

        fptr = fopen ("/dev/shm/linkup-varstore/thread_count", "r");
        while (!feof (fptr))
        {
            if(fscanf(fptr,"%d",&thread_count) == 0) {
                printf("possible fscaf error : %s (Error code %d)\n", strerror(errno), errno);
                errno = 0;
            }
        }
        fclose (fptr); 
    }
}