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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 /* As a special exception, if you link this library with other files,
  22    some of which are compiled with GCC, to produce an executable,
  23    this library does not by itself cause the resulting executable
  24    to be covered by the GNU General Public License.
  25    This exception does not however invalidate any other reasons why
  26    the executable file might be covered by the GNU General Public License.  */
  27
  28 #include <stdio.h>
  29 #include "rtltypes.h"
  30 #include "rts.h"
  31
  32 typedef char *(*fetch_names) (int number);
  33 extern fetch_names      __RTS_FETCH_NAMES__;
  34
  35 /*
  36  * function print_instance
  37  *
  38  */
  39
  40 static char *print_instance (ins)
  41      INSTANCE ins;
  42 {
  43   static char  buf[256];
  44   char *f;
  45
  46   if (!__RTS_FETCH_NAMES__)
  47     f = 0;
  48   else
  49     f = (*__RTS_FETCH_NAMES__) (ins.ptype);
  50   if (!f)
  51     sprintf (buf, "[%u;%u]", ins.ptype, ins.pcopy);
  52   else
  53     sprintf (buf, "[%s;%u]", f, ins.pcopy);
  54   return buf;
  55 }
  56
  57 /*
  58  * function __print_buffer
  59  *
  60  * parameters:
  61  *     buffer      buffer location
  62  *
  63  * returns:
  64  *     void
  65  *
  66  * exceptions:
  67  *     none
  68  *
  69  * abstract:
  70  *     Function is used for debugging purposes only to print a
  71  *     buffer queue
  72  */
  73
  74 void
  75 __print_buffer (buffer, name)
  76      Buffer_Queue   **buffer;
  77      char            *name;
  78 {
  79   Buffer_Queue      *bq;
  80   int                bsqcnt = 0, bwqcnt = 0;
  81   Buffer_Send_Queue *bsq;
  82   Buffer_Wait_Queue *bwq;
  83
  84   if (name)
  85     printf ("Buffer %s:\n", name);
  86   else
  87     printf ("Buffer at address H'%X:\n", buffer);
  88
  89   memcpy (&bq, buffer, sizeof (Buffer_Queue *));
  90   if (bq == 0)
  91     {
  92       printf ("EMPTY\n");
  93       return;
  94     }
  95
  96   bsq = bq->sendqueue;
  97   if (bsq != 0)
  98       printf ("Send Queue:\n");
  99   while (bsq)
 100     {
 101       printf (" %3d: ", ++bsqcnt);
 102       printf ("Process %s, ", print_instance (bsq->this));
 103       printf ("Priority %d", bsq->priority);
 104       if (bsq->is_delayed)
 105         printf (", Delayed");
 106       printf ("\n");
 107       bsq = bsq->forward;
 108     }
 109   bwq = bq->waitqueue;
 110   if (bwq != 0)
 111       printf ("Wait Queue:\n");
 112   while (bwq)
 113     {
 114       printf (" %3d: ", ++bwqcnt);
 115       printf ("Process %s, ", print_instance (bwq->this));
 116       if (bwq->is_sent)
 117         printf (", Send by %s", print_instance (bwq->who_sent));
 118       printf ("\n");
 119       bwq = bwq->forward;
 120     }
 121   if (bsqcnt == 0 && bwqcnt == 0)
 122     printf ("EMPTY\n");
 123 }