10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 70Sstevel@tonic-gate * with the License. 80Sstevel@tonic-gate * 90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 110Sstevel@tonic-gate * See the License for the specific language governing permissions 120Sstevel@tonic-gate * and limitations under the License. 130Sstevel@tonic-gate * 140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 190Sstevel@tonic-gate * 200Sstevel@tonic-gate * CDDL HEADER END 210Sstevel@tonic-gate */ 22*722Smuffin /* 23*722Smuffin * Copyright 1986 Sun Microsystems, Inc. All rights reserved. 24*722Smuffin * Use is subject to license terms. 25*722Smuffin */ 260Sstevel@tonic-gate 27*722Smuffin #pragma ident "%Z%%M% %I% %E% SMI" 280Sstevel@tonic-gate 290Sstevel@tonic-gate #include "mallint.h" 300Sstevel@tonic-gate #include <errno.h> 310Sstevel@tonic-gate 320Sstevel@tonic-gate /* 330Sstevel@tonic-gate * mallopt -- System V-compatible malloc "optimizer" 340Sstevel@tonic-gate */ 35*722Smuffin int mallopt(int cmd,int value)36*722Smuffinmallopt(int cmd, int value) 370Sstevel@tonic-gate { 380Sstevel@tonic-gate if (__mallinfo.smblks != 0) 39*722Smuffin return (-1); /* small block has been allocated */ 400Sstevel@tonic-gate 410Sstevel@tonic-gate switch (cmd) { 420Sstevel@tonic-gate case M_MXFAST: /* small block size */ 430Sstevel@tonic-gate if (value < 0) 44*722Smuffin return (-1); 450Sstevel@tonic-gate __mallinfo.mxfast = value; 460Sstevel@tonic-gate break; 470Sstevel@tonic-gate 480Sstevel@tonic-gate case M_NLBLKS: /* # small blocks per holding block */ 490Sstevel@tonic-gate if (value <= 0) 50*722Smuffin return (-1); 510Sstevel@tonic-gate __mallinfo.nlblks = value; 520Sstevel@tonic-gate break; 530Sstevel@tonic-gate 540Sstevel@tonic-gate case M_GRAIN: /* small block rounding factor */ 550Sstevel@tonic-gate if (value <= 0) 56*722Smuffin return (-1); 570Sstevel@tonic-gate /* round up to multiple of minimum alignment */ 580Sstevel@tonic-gate __mallinfo.grain = roundup(value, ALIGNSIZ); 590Sstevel@tonic-gate break; 600Sstevel@tonic-gate 610Sstevel@tonic-gate case M_KEEP: /* Sun algorithm always preserves data */ 620Sstevel@tonic-gate break; 630Sstevel@tonic-gate 640Sstevel@tonic-gate default: 65*722Smuffin return (-1); 660Sstevel@tonic-gate } 670Sstevel@tonic-gate 680Sstevel@tonic-gate /* make sure that everything is consistent */ 690Sstevel@tonic-gate __mallinfo.mxfast = roundup(__mallinfo.mxfast, __mallinfo.grain); 700Sstevel@tonic-gate 71*722Smuffin return (0); 720Sstevel@tonic-gate } 730Sstevel@tonic-gate 740Sstevel@tonic-gate 750Sstevel@tonic-gate /* 760Sstevel@tonic-gate * mallinfo -- System V-compatible malloc information reporter 770Sstevel@tonic-gate */ 780Sstevel@tonic-gate struct mallinfo mallinfo(void)79*722Smuffinmallinfo(void) 800Sstevel@tonic-gate { 810Sstevel@tonic-gate struct mallinfo mi; 820Sstevel@tonic-gate 830Sstevel@tonic-gate mi = __mallinfo; 840Sstevel@tonic-gate mi.uordblks = mi.uordbytes - (mi.allocated * sizeof(uint)); 850Sstevel@tonic-gate mi.fordblks = mi.arena - (mi.treeoverhead + mi.uordblks + 860Sstevel@tonic-gate (mi.ordblks * sizeof(uint))); 87*722Smuffin return (mi); 880Sstevel@tonic-gate } 89