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 "rtltypes.h"
  31 #include "rts.h"
  32
  33 typedef char *(*fetch_names) (int number);
  34 extern fetch_names      __RTS_FETCH_NAMES__;
  35
  36 /*
  37  * function print_instance
  38  *
  39  */
  40
  41 static char *print_instance (ins)
  42      INSTANCE ins;
  43 {
  44   static char  buf[256];
  45   char *f;
  46
  47   if (!__RTS_FETCH_NAMES__)
  48     f = 0;
  49   else
  50     f = (*__RTS_FETCH_NAMES__) (ins.ptype);
  51   if (!f)
  52     sprintf (buf, "[%u;%u]", ins.ptype, ins.pcopy);
  53   else
  54     sprintf (buf, "[%s;%u]", f, ins.pcopy);
  55   return buf;
  56 }
  57
  58 /*
  59  * function __print_buffer
  60  *
  61  * parameters:
  62  *     buffer      buffer location
  63  *
  64  * returns:
  65  *     void
  66  *
  67  * exceptions:
  68  *     none
  69  *
  70  * abstract:
  71  *     Function is used for debugging purposes only to print a
  72  *     buffer queue
  73  */
  74
  75 void
  76 __print_buffer (buffer, name)
  77      Buffer_Queue   **buffer;
  78      char            *name;
  79 {
  80   Buffer_Queue      *bq;
  81   int                bsqcnt = 0, bwqcnt = 0;
  82   Buffer_Send_Queue *bsq;
  83   Buffer_Wait_Queue *bwq;
  84
  85   if (name)
  86     printf ("Buffer %s:\n", name);
  87   else
  88     printf ("Buffer at address H'%X:\n", buffer);
  89
  90   memcpy (&bq, buffer, sizeof (Buffer_Queue *));
  91   if (bq == 0)
  92     {
  93       printf ("EMPTY\n");
  94       return;
  95     }
  96
  97   bsq = bq->sendqueue;
  98   if (bsq != 0)
  99       printf ("Send Queue:\n");
 100   while (bsq)
 101     {
 102       printf (" %3d: ", ++bsqcnt);
 103       printf ("Process %s, ", print_instance (bsq->this));
 104       printf ("Priority %d", bsq->priority);
 105       if (bsq->is_delayed)
 106         printf (", Delayed");
 107       printf ("\n");
 108       bsq = bsq->forward;
 109     }
 110   bwq = bq->waitqueue;
 111   if (bwq != 0)
 112       printf ("Wait Queue:\n");
 113   while (bwq)
 114     {
 115       printf (" %3d: ", ++bwqcnt);
 116       printf ("Process %s, ", print_instance (bwq->this));
 117       if (bwq->is_sent)
 118         printf (", Send by %s", print_instance (bwq->who_sent));
 119       printf ("\n");
 120       bwq = bwq->forward;
 121     }
 122   if (bsqcnt == 0 && bwqcnt == 0)
 123     printf ("EMPTY\n");
 124 }