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Viewing changes to callgrind/costs.c

  • Committer: Bazaar Package Importer
  • Author(s): Sebastian Dröge
  • Date: 2006-06-26 00:17:17 UTC
  • mto: This revision was merged to the branch mainline in revision 11.
  • Revision ID: james.westby@ubuntu.com-20060626001717-qi51nzty57cb12q6
Tags: upstream-3.2.0
Import upstream version 3.2.0

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callgrind/costs.c
 
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/*--------------------------------------------------------------------*/
 
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/*--- Callgrind                                                    ---*/
 
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/*---                                                   ct_costs.c ---*/
 
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/*--------------------------------------------------------------------*/
 
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/*
 
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   This file is part of Callgrind, a Valgrind tool for call tracing.
 
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   Copyright (C) 2002-2006, Josef Weidendorfer (Josef.Weidendorfer@gmx.de)
 
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   This program is free software; you can redistribute it and/or
 
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   modify it under the terms of the GNU General Public License as
 
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   published by the Free Software Foundation; either version 2 of the
 
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   License, or (at your option) any later version.
 
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   This program is distributed in the hope that it will be useful, but
 
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   WITHOUT ANY WARRANTY; without even the implied warranty of
 
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 
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   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 this program; if not, write to the Free Software
 
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   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 
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   02111-1307, USA.
 
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   The GNU General Public License is contained in the file COPYING.
 
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*/
 
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#include "global.h"
 
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#include <pub_tool_mallocfree.h>
 
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#define COSTCHUNK_SIZE 100000
 
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UInt CLG_(costarray_entries) = 0;
 
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UInt CLG_(costarray_chunks) = 0;
 
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static CostChunk* cost_chunk_base = 0;
 
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static CostChunk* cost_chunk_current = 0;
 
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ULong* CLG_(get_costarray)(Int size)
 
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{
 
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  ULong* ptr;
 
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  if (!cost_chunk_current ||
 
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      (cost_chunk_current->size - cost_chunk_current->used < size)) {
 
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    CostChunk* cc  = (CostChunk*) CLG_MALLOC(sizeof(CostChunk) +
 
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                                              COSTCHUNK_SIZE * sizeof(ULong));
 
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    cc->size = COSTCHUNK_SIZE;
 
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    cc->used = 0;
 
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    cc->next = 0;
 
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    if (cost_chunk_current)
 
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      cost_chunk_current->next = cc;
 
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    cost_chunk_current = cc;
 
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    if (!cost_chunk_base) cost_chunk_base = cc;
 
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    CLG_(costarray_chunks)++;
 
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  }
 
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  ptr = &(cost_chunk_current->data[cost_chunk_current->used]);
 
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  cost_chunk_current->used += size;
 
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  CLG_(costarray_entries) += size;
 
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  return ptr;
 
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}
 
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void CLG_(free_costarrays)()
 
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{
 
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  CostChunk* cc = cost_chunk_base, *cc_next;
 
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  while(cc) {
 
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    cc_next = cc->next;
 
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    VG_(free)(cc);
 
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    cc = cc_next;
 
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  }
 
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  cost_chunk_base = 0;
 
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  cost_chunk_current = 0;
 
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}