common.h

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "k.h"

I handleOk(I handle) {
  if(handle > 0)
    return 1;
  if(handle == 0)
    fprintf(stderr, "Authentication error %d\n", handle);
  else if(handle == -1)
    fprintf(stderr, "Connection error %d\n", handle);
  else if(handle == -2)
    fprintf(stderr, "Time out error %d\n", handle);
  return 0;
}
// check result of remote call
// it can be either 0(network error) or K object
// if type of the object is -128(error) print error and release object.
// K objects with type -128 exist only when calling from standalone C API and
// not valid for shared objects
I isRemoteErr(K x) {
  if(!x) {
    fprintf(stderr, "Network error: %s\n", strerror(errno));
    return 1;
  } else if(-128 == xt) {
    fprintf(stderr, "Error message returned : %s\n", x->s);
    r0(x);
    return 1;
  }
  return 0;
}