weidendo | a17f2a3 | 2006-03-20 10:27:30 +0000 | [diff] [blame] | 1 | /*--------------------------------------------------------------------*/ |
| 2 | /*--- Callgrind ---*/ |
| 3 | /*--- ct_costs.c ---*/ |
| 4 | /*--------------------------------------------------------------------*/ |
| 5 | |
| 6 | /* |
| 7 | This file is part of Callgrind, a Valgrind tool for call tracing. |
| 8 | |
sewardj | 4d474d0 | 2008-02-11 11:34:59 +0000 | [diff] [blame] | 9 | Copyright (C) 2002-2008, Josef Weidendorfer (Josef.Weidendorfer@gmx.de) |
weidendo | a17f2a3 | 2006-03-20 10:27:30 +0000 | [diff] [blame] | 10 | |
| 11 | This program is free software; you can redistribute it and/or |
| 12 | modify it under the terms of the GNU General Public License as |
| 13 | published by the Free Software Foundation; either version 2 of the |
| 14 | License, or (at your option) any later version. |
| 15 | |
| 16 | This program is distributed in the hope that it will be useful, but |
| 17 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 19 | General Public License for more details. |
| 20 | |
| 21 | You should have received a copy of the GNU General Public License |
| 22 | along with this program; if not, write to the Free Software |
| 23 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 24 | 02111-1307, USA. |
| 25 | |
| 26 | The GNU General Public License is contained in the file COPYING. |
| 27 | */ |
| 28 | |
| 29 | #include "global.h" |
| 30 | |
| 31 | #include <pub_tool_mallocfree.h> |
| 32 | |
| 33 | #define COSTCHUNK_SIZE 100000 |
| 34 | |
| 35 | UInt CLG_(costarray_entries) = 0; |
| 36 | UInt CLG_(costarray_chunks) = 0; |
| 37 | static CostChunk* cost_chunk_base = 0; |
| 38 | static CostChunk* cost_chunk_current = 0; |
| 39 | |
| 40 | ULong* CLG_(get_costarray)(Int size) |
| 41 | { |
| 42 | ULong* ptr; |
| 43 | |
| 44 | if (!cost_chunk_current || |
| 45 | (cost_chunk_current->size - cost_chunk_current->used < size)) { |
| 46 | CostChunk* cc = (CostChunk*) CLG_MALLOC(sizeof(CostChunk) + |
| 47 | COSTCHUNK_SIZE * sizeof(ULong)); |
| 48 | cc->size = COSTCHUNK_SIZE; |
| 49 | cc->used = 0; |
| 50 | cc->next = 0; |
| 51 | |
| 52 | if (cost_chunk_current) |
| 53 | cost_chunk_current->next = cc; |
| 54 | cost_chunk_current = cc; |
| 55 | |
| 56 | if (!cost_chunk_base) cost_chunk_base = cc; |
| 57 | |
| 58 | CLG_(costarray_chunks)++; |
| 59 | } |
| 60 | |
| 61 | ptr = &(cost_chunk_current->data[cost_chunk_current->used]); |
| 62 | cost_chunk_current->used += size; |
| 63 | |
| 64 | CLG_(costarray_entries) += size; |
| 65 | |
| 66 | return ptr; |
| 67 | } |
| 68 | |
| 69 | void CLG_(free_costarrays)() |
| 70 | { |
| 71 | CostChunk* cc = cost_chunk_base, *cc_next; |
| 72 | while(cc) { |
| 73 | cc_next = cc->next; |
| 74 | VG_(free)(cc); |
| 75 | cc = cc_next; |
| 76 | } |
| 77 | cost_chunk_base = 0; |
| 78 | cost_chunk_current = 0; |
| 79 | } |