/* diskmodel (version 1.0) * Authors: John Bucy, Greg Ganger * Contributors: John Griffin, Jiri Schindler, Steve Schlosser * * Copyright (c) of Carnegie Mellon University, 2001-2008. * * This software is being provided by the copyright holders under the * following license. By obtaining, using and/or copying this * software, you agree that you have read, understood, and will comply * with the following terms and conditions: * * Permission to reproduce, use, and prepare derivative works of this * software is granted provided the copyright and "No Warranty" * statements are included with all reproductions and derivative works * and associated documentation. This software may also be * redistributed without charge provided that the copyright and "No * Warranty" statements are included in all redistributions. * * NO WARRANTY. THIS SOFTWARE IS FURNISHED ON AN "AS IS" BASIS. * CARNEGIE MELLON UNIVERSITY MAKES NO WARRANTIES OF ANY KIND, EITHER * EXPRESSED OR IMPLIED AS TO THE MATTER INCLUDING, BUT NOT LIMITED * TO: WARRANTY OF FITNESS FOR PURPOSE OR MERCHANTABILITY, EXCLUSIVITY * OF RESULTS OR RESULTS OBTAINED FROM USE OF THIS SOFTWARE. CARNEGIE * MELLON UNIVERSITY DOES NOT MAKE ANY WARRANTY OF ANY KIND WITH * RESPECT TO FREEDOM FROM PATENT, TRADEMARK, OR COPYRIGHT * INFRINGEMENT.  COPYRIGHT HOLDERS WILL BEAR NO LIABILITY FOR ANY USE * OF THIS SOFTWARE OR DOCUMENTATION.   */#include "dm_config.h"#include "dm.h"// the double time is going to be msecs to minimize old disksim code// breakageINLINE dm_time_t dm_time_dtoi(double t){  // milliseconds to picoseconds so multiply by 10^9  return (dm_time_t)(t * (double)(DM_TIME_MSEC));}INLINE double    dm_time_itod(dm_time_t t){  return (double)t / (double)(DM_TIME_MSEC);}// denominator of angles// #define DM_ANGLE_DENOM ((unsigned)-1)// convert angles between doubles and fixed-point representationINLINE double      dm_angle_itod(dm_angle_t a){  //  return (double)a / (double)(unsigned)-1;  return (double)a / (double)((long long)1 << 32);}INLINE dm_angle_t  dm_angle_dtoi(double a){  if(a > 1.0)     a -= (int)a;  //  return (dm_angle_t)(a * (double)(unsigned)-1);  return (dm_angle_t)(a * (double)((long long)1 << 32));}