lwp/timer.h

   1 /*
   2 ****************************************************************************
   3 *        Copyright IBM Corporation 1988, 1989 - All Rights Reserved        *
   4 *                                                                          *
   5 * Permission to use, copy, modify, and distribute this software and its    *
   6 * documentation for any purpose and without fee is hereby granted,         *
   7 * provided that the above copyright notice appear in all copies and        *
   8 * that both that copyright notice and this permission notice appear in     *
   9 * supporting documentation, and that the name of IBM not be used in        *
  10 * advertising or publicity pertaining to distribution of the software      *
  11 * without specific, written prior permission.                              *
  12 *                                                                          *
  13 * IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL *
  14 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL IBM *
  15 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY      *
  16 * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER  *
  17 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING   *
  18 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.    *
  19 ****************************************************************************
  20 */
  21
  22 /*******************************************************************\
  23 *                                                                   *
  24 *       Information Technology Center                               *
  25 *       Carnegie-Mellon University                                  *
  26 *                                                                   *
  27 *                                                                   *
  28 \*******************************************************************/
  29
  30 struct TM_Elem {
  31     struct TM_Elem      *Next;          /* filled by package */
  32     struct TM_Elem      *Prev;          /* filled by package */
  33     struct timeval      TotalTime;      /* filled in by caller -- modified by package */
  34     struct timeval      TimeLeft;       /* filled by package */
  35     char                *BackPointer;   /* filled by caller, not interpreted by package */
  36 };
  37
  38 #ifndef _TIMER_IMPL_
  39 extern void Tm_Insert();
  40 #define TM_Remove(list, elem) lwp_remque(elem)
  41 extern int TM_Rescan();
  42 extern struct TM_Elem *TM_GetExpired();
  43 extern struct TM_Elem *TM_GetEarliest();
  44 #endif
  45
  46 int TM_Init(struct TM_Elem **list);
  47 int TM_Rescan(struct TM_Elem *tlist);
  48 struct TM_Elem *TM_GetExpired(struct TM_Elem *tlist);
  49 struct TM_Elem *TM_GetEarliest(struct TM_Elem *tlist);
  50
  51 typedef unsigned char bool; /* XXX - this is not the correct place */
  52
  53 bool TM_eql(struct timeval *, struct timeval *);
  54 int TM_Final(struct TM_Elem **);
  55 void TM_Insert(struct TM_Elem *, struct TM_Elem *);
  56
  57 #define FOR_ALL_ELTS(var, list, body)\
  58         {\
  59             struct TM_Elem *_LIST_, *var, *_NEXT_;\
  60             _LIST_ = (list);\
  61             for (var = _LIST_ -> Next; var != _LIST_; var = _NEXT_) {\
  62                 _NEXT_ = var -> Next;\
  63                 body\
  64             }\
  65         }
  66
  67 /* ---------------------- */
  68
  69 /*
  70  * FT - prototypes.
  71  * This is completly wrong place to place this.
  72  * But fasttime doesn't have any own prototypes.
  73  * (fasttime should be shot anyway)
  74  */
  75
  76 int FT_Init(int, int);
  77 int FT_GetTimeOfDay(struct timeval * tv, struct timezone * tz);
  78 int FT_AGetTimeOfDay(struct timeval *, struct timezone *);
  79 int TM_GetTimeOfDay(struct timeval * tv, struct timezone * tz);
  80 unsigned int FT_ApproxTime(void);