mirror of
https://github.com/ioacademy-jikim/debugging
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71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*--------------------------------------------------------------------*/
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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) 2002-2015, 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("cl.costs.gc.1",
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sizeof(CostChunk) +
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COSTCHUNK_SIZE * sizeof(ULong));
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CLG_ASSERT(size < COSTCHUNK_SIZE);
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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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