115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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// $XConsortium: Destructable.C /main/8 1996/10/04 12:48:45 cde-hal $
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#ifndef NATIVE_EXCEPTIONS
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#include "Exceptions.hh"
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void *Destructable::g_stack_start;
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unsigned short Destructable::g_size;
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#ifdef C_API
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NEW_AND_DELETE_BODIES_SIMPLE(Destructable)
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#endif
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#ifdef DEBUG
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#ifdef NOPE
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struct Init
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{
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Init() {}
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};
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static Init I;
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#endif
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#endif
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// /////////////////////////////////////////////////////////////////
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// in_stack - return true if ptr is in stack memory
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// /////////////////////////////////////////////////////////////////
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int
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Destructable::in_stack()
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{
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char stack_end;
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PRINTF (("In_stack : %p -- %p | %p ",
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g_stack_start, &stack_end, this));
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if (((void *) this > &stack_end && (void *) this < g_stack_start) ||
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((void *) this < &stack_end && (void *) this > g_stack_start))
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{
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PRINTF (("(stack)\n"));
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return (1);
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}
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else
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{
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PRINTF (("(heap)\n"));
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return (0);
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}
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}
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// /////////////////////////////////////////////////////////////////
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// in_stack_set_size - return 1 if in the stack, set size as well
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// /////////////////////////////////////////////////////////////////
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int
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Destructable::in_stack_set_size()
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{
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char stack_end;
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PRINTF (("In_stack_size : %p -- %p | %p ",
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g_stack_start, &stack_end, this));
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// Handle stack grows down case.
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if ((void *) this > (void *) &stack_end &&
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(void *) this < (void *) g_stack_start)
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{
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PRINTF (("(stack)\n"));
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// Size unknown, also used to indicate stack grows down.
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Destructable::g_size = 0;
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return (1);
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}
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// Handle stack grows up case.
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else if ((void *) this > (void *) g_stack_start &&
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(void *) this < (void *) &stack_end)
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{
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// stack_end is just past this, so size is space between them.
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Destructable::g_size = (unsigned long) &stack_end - (unsigned long) this;
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#ifdef foobar
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g_size -=
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#endif
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PRINTF (("(stack)\n"));
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PRINTF ((" obj start = %p, end = %p, size = %d\n",
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this, &stack_end, g_size));
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return (1);
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}
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else
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{
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PRINTF (("(heap)\n"));
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return (0);
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}
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}
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#endif /* NATIVE_EXCEPTIONS */
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