663 lines
13 KiB
C
663 lines
13 KiB
C
/* GNU CHILL compiler regression test file
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Copyright (C) 1992, 1993 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* As a special exception, if you link this library with other files,
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some of which are compiled with GCC, to produce an executable,
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this library does not by itself cause the resulting executable
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to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License. */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <setjmp.h>
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#include <signal.h>
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#include "rts.h"
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/* some allocation/reallocation functions */
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static void *
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xmalloc (size)
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int size;
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{
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void *tmp = malloc (size);
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if (!tmp)
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{
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fprintf (stderr, "Out of heap space.\n");
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exit (1);
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}
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return (tmp);
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}
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static void *
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xrealloc (ptr, size)
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void *ptr;
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int size;
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{
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void *tmp = realloc (ptr, size);
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if (!tmp)
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{
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fprintf (stderr, "Out of heap space.\n");
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exit (1);
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}
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return (tmp);
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}
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/* the necessary data */
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#define MAX_NUMBER 100
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typedef char UsedValues[MAX_NUMBER];
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#define MAX_COPIES 100
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#define MAX_PER_ITEM 20
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typedef struct TASKINGSTRUCTLIST
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{
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struct TASKINGSTRUCTLIST *forward;
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int num;
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TaskingStruct *data[MAX_PER_ITEM];
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char copies[MAX_COPIES];
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jmp_buf where;
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} TaskingStructList;
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static TaskingStructList *task_array[LAST_AND_UNUSED];
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static UsedValues used_values[LAST_AND_UNUSED];
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static short
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get_next_free_number (vals)
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UsedValues vals;
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{
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short i;
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for (i = 1; i < MAX_NUMBER; i++)
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{
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if (!vals[i])
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{
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vals[i] = 1;
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return (i);
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}
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}
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fprintf (stderr, "There are no more free numbers.\n");
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exit (1);
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}
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/* function search for the next available copy number */
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static short
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get_next_copy_number (p)
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TaskingStructList *p;
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{
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short i;
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for (i = 0; i < MAX_COPIES; i++)
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{
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if (!p->copies[i])
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{
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p->copies[i] = 1;
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return (i);
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}
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}
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fprintf (stderr, "No more copies available for \"%s\".\n",
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p->data[0]->name);
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exit (1);
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}
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/* function registers a tasking entry from a module and assign
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a value to the type */
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void
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__register_tasking (t)
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TaskingStruct *t;
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{
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TaskingStructList *p;
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/* check first if a value was provided and if it is in range */
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if (t->value_defined && *t->value >= MAX_NUMBER)
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{
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fprintf (stderr, "Value %d out of range.\n", *t->value);
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exit (1);
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}
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/* look for item defined */
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p = task_array[t->type];
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while (p)
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{
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if (!strcmp (p->data[0]->name, t->name))
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/* have found it */
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break;
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p = p->forward;
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}
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if (!p)
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{
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TaskingStructList *wrk = (TaskingStructList *)&task_array[t->type];
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/* this is a new one -- allocate space */
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p = xmalloc (sizeof (TaskingStructList));
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memset (p->copies, 0, sizeof (p->copies));
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p->forward = 0;
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p->num = 1;
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p->data[0] = t;
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/* queue it in */
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while (wrk->forward)
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wrk = wrk->forward;
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wrk->forward = p;
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}
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else
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{
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if (p->num >= MAX_PER_ITEM)
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{
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fprintf (stderr, "Too many registrations of \"%s\".\n", t->name);
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exit (1);
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}
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p->data[p->num++] = t;
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}
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}
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/* define all the entries for the runtime system. They will be
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needed by chillrt0.o */
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typedef char *(*fetch_names) ();
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typedef int (*fetch_numbers) ();
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static char tmp_for_fetch_name[100];
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char *
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__fetch_name (number)
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int number;
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{
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TaskingStructList *p = task_array[Process];
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while (p)
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{
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if (*(p->data[0]->value) == number)
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return (p->data[0]->name);
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p = p->forward;
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}
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sprintf (tmp_for_fetch_name, "%d", number);
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return (tmp_for_fetch_name);
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}
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fetch_names __RTS_FETCH_NAMES__ = __fetch_name;
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static int
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__fetch_number (name)
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char *name;
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{
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TaskingStructList *p = task_array[Process];
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while (p)
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{
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if (!strcmp (p->data[0]->name, name))
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return (*(p->data[0]->value));
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p = p->forward;
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}
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return (-1);
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}
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fetch_numbers __RTS_FETCH_NUMBERS__ = __fetch_number;
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/* here we go to check all registered items */
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static void
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__rts_init ()
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{
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int i;
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TaskingStructList *p;
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for (i = Process; i <= Event; i++)
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{
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p = task_array[i];
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while (p)
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{
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TaskingStruct *t = 0;
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int j;
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short val;
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for (j = 0; j < p->num; j++)
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{
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if (p->data[j]->value_defined)
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{
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if (t)
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{
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if (*(t->value) != *(p->data[j]->value))
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{
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fprintf (stderr, "Different values (%d & %d) for \"%s\".",
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*(t->value), *(p->data[j]->value), t->name);
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exit (1);
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}
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}
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else
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t = p->data[j];
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}
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}
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if (t)
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{
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val = *(t->value);
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if (used_values[t->type][val])
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{
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fprintf (stderr, "Value %d for \"%s\" is already used.\n",
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val, t->name);
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exit (1);
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}
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used_values[t->type][val] = 1;
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}
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else
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{
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/* we have to create a new value */
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val = get_next_free_number (used_values[p->data[0]->type]);
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}
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for (j = 0; j < p->num; j++)
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{
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p->data[j]->value_defined = 1;
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*(p->data[j]->value) = val;
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}
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p = p->forward;
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}
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}
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}
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EntryPoint __RTS_INIT__ = __rts_init;
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/* define the start process queue */
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typedef struct STARTENTRY
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{
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struct STARTENTRY *forward;
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INSTANCE whoami;
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EntryPoint entry;
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void *data;
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int datalen;
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} StartEntry;
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static StartEntry *start_queue = 0;
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static StartEntry *current_process = 0;
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/* the jump buffer for the main loop */
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static jmp_buf jump_buffer;
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static int jump_buffer_initialized = 0;
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/* look for entries in start_queue and start the process */
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static void
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__rts_main_loop ()
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{
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StartEntry *s;
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while (1)
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{
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if (setjmp (jump_buffer) == 0)
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{
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jump_buffer_initialized = 1;
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s = start_queue;
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while (s)
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{
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current_process = s;
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start_queue = s->forward;
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/* call the process */
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(*s->entry) (s->data);
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s = start_queue;
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}
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/* when queue empty we have finished */
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return;
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}
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else
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{
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/* stop executed */
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if (current_process->data)
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free (current_process->data);
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free (current_process);
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current_process = 0;
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}
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}
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}
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EntryPoint __RTS_MAIN_LOOP__ = __rts_main_loop;
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void
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__start_process (ptype, pcopy, arg_size, args, ins)
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short ptype;
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short pcopy;
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int arg_size;
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void *args;
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INSTANCE *ins;
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{
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TaskingStructList *p = task_array[Process];
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EntryPoint pc = 0;
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int i;
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short this_copy = pcopy;
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StartEntry *s, *wrk;
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/* search for the process */
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while (p)
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{
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if (*(p->data[0]->value) == ptype)
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break;
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p = p->forward;
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}
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if (!p)
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{
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fprintf (stderr, "Cannot find a process with type %d.\n", ptype);
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exit (1);
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}
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/* search for the entry point */
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for (i = 0; i < p->num; i++)
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{
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if (p->data[i]->entry)
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{
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pc = p->data[i]->entry;
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break;
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}
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}
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if (!pc)
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{
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fprintf (stderr, "Process \"%s\" doesn't have an entry point.\n",
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p->data[0]->name);
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exit (1);
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}
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/* check the copy */
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if (pcopy >= MAX_COPIES)
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{
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fprintf (stderr, "Copy number (%d) out of range.\n", pcopy);
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exit (1);
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}
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if (pcopy == -1)
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{
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/* search for a copy number */
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this_copy = get_next_copy_number (p);
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}
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else
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{
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if (p->copies[pcopy])
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{
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/* FIXME: should be exception 'startfail' */
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fprintf (stderr, "Copy number %d already in use for \"%s\".\n",
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pcopy, p->data[0]->name);
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exit (1);
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}
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p->copies[this_copy = pcopy] = 1;
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}
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/* ready to build start_queue entry */
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s = xmalloc (sizeof (StartEntry));
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s->forward = 0;
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s->whoami.pcopy = this_copy;
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s->whoami.ptype = ptype;
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s->entry = pc;
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s->datalen = arg_size;
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if (args)
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{
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s->data = xmalloc (arg_size);
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memcpy (s->data, args, arg_size);
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}
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else
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s->data = 0;
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/* queue that stuff in */
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wrk = (StartEntry *)&start_queue;
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while (wrk->forward)
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wrk = wrk->forward;
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wrk->forward = s;
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/* if we have a pointer to ins -- set it */
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if (ins)
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{
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ins->ptype = ptype;
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ins->pcopy = this_copy;
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}
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}
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void
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__stop_process ()
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{
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if (!jump_buffer_initialized)
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{
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fprintf (stderr, "STOP called before START.\n");
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exit (1);
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}
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longjmp (jump_buffer, 1);
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}
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/* function returns INSTANCE of current process */
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INSTANCE
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__whoami ()
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{
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INSTANCE whoami;
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if (current_process)
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whoami = current_process->whoami;
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else
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{
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whoami.ptype = 0;
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whoami.pcopy = 0;
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}
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return (whoami);
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}
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typedef struct
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{
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short *sc;
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int data_len;
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void *data;
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} SignalDescr;
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typedef struct SIGNALQUEUE
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{
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struct SIGNALQUEUE *forward;
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short sc;
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int data_len;
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void *data;
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INSTANCE to;
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INSTANCE from;
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} SignalQueue;
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/* define the signal queue */
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static SignalQueue *msg_queue = 0;
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/* send a signal */
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void
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__send_signal (s, to, prio, with_len, with)
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SignalDescr *s;
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INSTANCE to;
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int prio;
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int with_len;
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void *with;
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{
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SignalQueue *wrk = (SignalQueue *)&msg_queue;
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SignalQueue *p;
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TaskingStructList *t = task_array[Process];
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/* search for process is defined and running */
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while (t)
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{
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if (*(t->data[0]->value) == to.ptype)
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break;
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t = t->forward;
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}
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if (!t || !t->copies[to.pcopy])
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{
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fprintf (stderr, "Can't find instance [%d,%d].\n",
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to.ptype, to.pcopy);
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exit (1);
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}
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/* go to the end of the msg_queue */
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while (wrk->forward)
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wrk = wrk->forward;
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p = xmalloc (sizeof (SignalQueue));
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p->sc = *(s->sc);
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if (p->data_len = s->data_len)
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{
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p->data = xmalloc (s->data_len);
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memcpy (p->data, s->data, s->data_len);
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}
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else
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p->data = 0;
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p->to = to;
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p->from = __whoami ();
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p->forward = 0;
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wrk->forward = p;
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}
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void
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start_signal_timeout (i, s, j)
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int i;
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SignalDescr *s;
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int j;
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{
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__send_signal (s, __whoami (), 0, 0, 0);
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}
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/* receive a signal */
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int
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__wait_signal_timed (sig_got, nsigs, sigptr, datap,
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datalen, ins, else_branche,
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to, filename, lineno)
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short *sig_got;
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int nsigs;
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short *sigptr[];
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void *datap;
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int datalen;
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INSTANCE *ins;
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int else_branche;
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void *to;
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char *filename;
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int lineno;
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{
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INSTANCE me = __whoami ();
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SignalQueue *wrk, *p = msg_queue;
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int i;
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short sc;
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/* search for a signal to `me' */
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wrk = (SignalQueue *)&msg_queue;
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while (p)
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{
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if (p->to.ptype == me.ptype
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&& p->to.pcopy == me.pcopy)
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break;
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wrk = p;
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p = p->forward;
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}
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if (!p)
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{
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fprintf (stderr, "No signal for [%d,%d].\n",
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me.ptype, me.pcopy);
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exit (1);
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}
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/* queue the message out */
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wrk->forward = p->forward;
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/* now look for signal in list */
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for (i = 0; i < nsigs; i++)
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if (*(sigptr[i]) == p->sc)
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break;
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if (i >= nsigs && ! else_branche)
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/* signal not in list and no ELSE in code */
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__cause_exception ("signalfail", __FILE__, __LINE__);
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if (i >= nsigs)
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{
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/* signal not in list */
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sc = p->sc;
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if (ins)
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*ins = p->from;
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if (p->data)
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free (p->data);
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free (p);
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*sig_got = sc;
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return (0);
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}
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/* we have found a signal in the list */
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if (p->data_len)
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{
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if (datalen >= p->data_len
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&& datap)
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memcpy (datap, p->data, p->data_len);
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else
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__cause_exception ("spacefail", __FILE__, __LINE__);
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}
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sc = p->sc;
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if (ins)
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*ins = p->from;
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if (p->data)
|
||
free (p->data);
|
||
free (p);
|
||
*sig_got = sc;
|
||
return (0);
|
||
}
|
||
|
||
/* wait a certain amount of seconds */
|
||
int
|
||
__sleep_till (abstime, reltime, fname, lineno)
|
||
time_t abstime;
|
||
int reltime;
|
||
char *fname;
|
||
int lineno;
|
||
{
|
||
sleep (reltime);
|
||
return 0;
|
||
}
|
||
|
||
/* set up an alarm */
|
||
static int timeout_flag = 0;
|
||
|
||
static void alarm_handler ()
|
||
{
|
||
timeout_flag = 1;
|
||
}
|
||
|
||
int *
|
||
__define_timeout (howlong, filename, lineno)
|
||
unsigned long howlong; /* comes in millisecs */
|
||
char *filename;
|
||
int lineno;
|
||
{
|
||
unsigned int prev_alarm_value;
|
||
|
||
signal (SIGALRM, alarm_handler);
|
||
prev_alarm_value = alarm ((unsigned int)(howlong / 1000));
|
||
return &timeout_flag;
|
||
}
|
||
|
||
/* wait till timeout expires */
|
||
void
|
||
__wait_timeout (toid, filename, lineno)
|
||
volatile int *toid;
|
||
char *filename;
|
||
int lineno;
|
||
{
|
||
while (! *toid) ;
|
||
*toid = 0;
|
||
}
|