libchill/printbuffer.c

   1 /* Implement tasking-related runtime actions for CHILL.
   2    Copyright (C) 1992,1993 Free Software Foundation, Inc.
   3    Author: Wilfried Moser
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* As a special exception, if you link this library with other files,
  23    some of which are compiled with GCC, to produce an executable,
  24    this library does not by itself cause the resulting executable
  25    to be covered by the GNU General Public License.
  26    This exception does not however invalidate any other reasons why
  27    the executable file might be covered by the GNU General Public License.  */
  28
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include "rtltypes.h"
  32 #include "rts.h"
  33
  34 typedef char *(*fetch_names) (int number);
  35 extern fetch_names      __RTS_FETCH_NAMES__;
  36
  37 /*
  38  * function print_instance
  39  *
  40  */
  41
  42 static char *print_instance (ins)
  43      INSTANCE ins;
  44 {
  45   static char  buf[256];
  46   char *f;
  47
  48   if (!__RTS_FETCH_NAMES__)
  49     f = 0;
  50   else
  51     f = (*__RTS_FETCH_NAMES__) (ins.ptype);
  52   if (!f)
  53     sprintf (buf, "[%u;%u]", ins.ptype, ins.pcopy);
  54   else
  55     sprintf (buf, "[%s;%u]", f, ins.pcopy);
  56   return buf;
  57 }
  58
  59 /*
  60  * function __print_buffer
  61  *
  62  * parameters:
  63  *     buffer      buffer location
  64  *
  65  * returns:
  66  *     void
  67  *
  68  * exceptions:
  69  *     none
  70  *
  71  * abstract:
  72  *     Function is used for debugging purposes only to print a
  73  *     buffer queue
  74  */
  75
  76 void
  77 __print_buffer (buffer, name)
  78      Buffer_Queue   **buffer;
  79      char            *name;
  80 {
  81   Buffer_Queue      *bq;
  82   int                bsqcnt = 0, bwqcnt = 0;
  83   Buffer_Send_Queue *bsq;
  84   Buffer_Wait_Queue *bwq;
  85
  86   if (name)
  87     printf ("Buffer %s:\n", name);
  88   else
  89     printf ("Buffer at address H'%X:\n", buffer);
  90
  91   memcpy (&bq, buffer, sizeof (Buffer_Queue *));
  92   if (bq == 0)
  93     {
  94       printf ("EMPTY\n");
  95       return;
  96     }
  97
  98   bsq = bq->sendqueue;
  99   if (bsq != 0)
 100       printf ("Send Queue:\n");
 101   while (bsq)
 102     {
 103       printf (" %3d: ", ++bsqcnt);
 104       printf ("Process %s, ", print_instance (bsq->this));
 105       printf ("Priority %d", bsq->priority);
 106       if (bsq->is_delayed)
 107         printf (", Delayed");
 108       printf ("\n");
 109       bsq = bsq->forward;
 110     }
 111   bwq = bq->waitqueue;
 112   if (bwq != 0)
 113       printf ("Wait Queue:\n");
 114   while (bwq)
 115     {
 116       printf (" %3d: ", ++bwqcnt);
 117       printf ("Process %s, ", print_instance (bwq->this));
 118       if (bwq->is_sent)
 119         printf (", Send by %s", print_instance (bwq->who_sent));
 120       printf ("\n");
 121       bwq = bwq->forward;
 122     }
 123   if (bsqcnt == 0 && bwqcnt == 0)
 124     printf ("EMPTY\n");
 125 }