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/*--------------------------------------------------------------------*/
/*--- Callgrind ---*/
/*--- ct_costs.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Callgrind, a Valgrind tool for call tracing.
Copyright (C) 2002-2017, Josef Weidendorfer (Josef.Weidendorfer@gmx.de)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
The GNU General Public License is contained in the file COPYING.
*/
#include "global.h"
#include "pub_tool_mallocfree.h"
#define COSTCHUNK_SIZE 100000
UInt CLG_(costarray_entries) = 0;
UInt CLG_(costarray_chunks) = 0;
static CostChunk* cost_chunk_base = 0;
static CostChunk* cost_chunk_current = 0;
ULong* CLG_(get_costarray)(Int size)
{
ULong* ptr;
if (!cost_chunk_current ||
(cost_chunk_current->size - cost_chunk_current->used < size)) {
CostChunk* cc = (CostChunk*) CLG_MALLOC("cl.costs.gc.1",
sizeof(CostChunk) +
COSTCHUNK_SIZE * sizeof(ULong));
CLG_ASSERT(size < COSTCHUNK_SIZE);
cc->size = COSTCHUNK_SIZE;
cc->used = 0;
cc->next = 0;
if (cost_chunk_current)
cost_chunk_current->next = cc;
cost_chunk_current = cc;
if (!cost_chunk_base) cost_chunk_base = cc;
CLG_(costarray_chunks)++;
}
ptr = &(cost_chunk_current->data[cost_chunk_current->used]);
cost_chunk_current->used += size;
CLG_(costarray_entries) += size;
return ptr;
}
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