main()
{
FILE *in;
int rtn,i;
in = fopen ("/Users/laurenceschenk/mini-src/mySrc/Coldipozzo/type_1_sort","r");
if (in == NULL) {
perror ("Unable to open type_1_sort\n");
exit (1);
}
rtn = shared_memory_attach();
clear_shm();
while (1)
{
rtn = fscanf(in,"%d\t%s\t%s\t%d",&etime,name,days,&action);
if (rtn == EOF) break;
printf ("Data read: name %s time %d days %s action %d\n",name,etime,days,action);
//write_to_shm();
rtn = get_name_index(name);
if (( rtn > -1) && (rtn < NUM_DEVICES))
{
write_to_shm(rtn);
} else {
printf ("**********FAILURE to find %s\n",name);
printf ("\n\n*****************program abort....\n");
shared_memory_detach();
exit(5);
}
}
fclose(in);
shared_memory_detach();
printf("shm_type_1:main written %d records\n",ptr);
exit(0);
}
void* thread_func(void* arg) {
int socket_desc = (int) arg, proc_id, flag = 0;
float left, right, result;
char operation, message[100];
Calculation msg = CALCULATION__INIT;
Result res = RESULT__INIT;
uint8_t calc_buf[1024],
result_buf[1024];
ssize_t len, result_len;
len = recv(socket_desc, calc_buf, 1024, 0);
deserialize_input(&msg, len, calc_buf, &left, &right, &operation, &proc_id);
add_to_online(proc_id);
while ((len = recv(socket_desc, calc_buf, 1024, 0))) {
deserialize_input(&msg, len, calc_buf, &left, &right, &operation,
&proc_id);
result = calculate(left, right, operation);
serialize_result(result_buf, &res, result, &result_len);
sprintf(message, "Client %d calculated %f %c %f = %f\n", proc_id, left,
operation, right, result);
write_to_shm(message);
send(socket_desc, result_buf, result_len, 0);
}
sprintf(message, "Client %d has disconnected\n", proc_id);
remove_from_online(proc_id);
notify(0, proc_id);
close(socket_desc);
active_connections--;
printf("Active connections are: %d\n", active_connections);
return NULL;
}
