Function httpUpdate

cups/http.c:2975–3031

 */

http_status_t				/* O - HTTP status */
httpUpdate(http_t *http)		/* I - HTTP connection */
{
  http_status_t	status;			/* Request status */


  DEBUG_printf(("httpUpdate(http=%p), state=%s", (void *)http, httpStateString(http->state)));

 /*
  * Flush pending data, if any...
  */

  if (http->wused)
  {
    DEBUG_puts("2httpUpdate: flushing buffer...");

    if (httpFlushWrite(http) < 0)
      return (HTTP_STATUS_ERROR);
  }

 /*
  * If we haven't issued any commands, then there is nothing to "update"...
  */

  if (http->state == HTTP_STATE_WAITING)
    return (HTTP_STATUS_CONTINUE);

 /*
  * Grab all of the lines we can from the connection...
  */

  while (_httpUpdate(http, &status));

 /*
  * See if there was an error...
  */

  if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE)
  {
    DEBUG_printf(("1httpUpdate: Returning status %d...", http->status));
    return (http->status);
  }

  if (http->error)
  {
    DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error,
                  strerror(http->error)));
    http->status = HTTP_STATUS_ERROR;
    return (HTTP_STATUS_ERROR);
  }

 /*
  * Return the current status...
  */

  return (status);
}