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/* |
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* CDDL HEADER START |
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* |
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* The contents of this file are subject to the terms of the |
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* Common Development and Distribution License, Version 1.0 only |
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* (the "License"). You may not use this file except in compliance |
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* with the License. |
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
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* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
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* fields enclosed by brackets "[]" replaced with your own identifying |
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* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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/* |
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* Copyright 2004 Sun Microsystems, Inc. All rights reserved. |
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* Use is subject to license terms. |
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*/ |
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/* |
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* Portions Copyright 2006 OmniTI, Inc. |
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*/ |
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|
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/* #pragma ident "@(#)init_lib.c 1.2 05/06/08 SMI" */ |
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|
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/* |
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* Initialization routines for the library version of libumem. |
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*/ |
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|
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#include "config.h" |
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#include "umem_base.h" |
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#include "vmem_base.h" |
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|
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#if HAVE_UNISTD_H |
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#include <unistd.h> |
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#endif |
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#if HAVE_DLFCN_H |
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#include <dlfcn.h> |
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#endif |
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|
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void |
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vmem_heap_init(void) |
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{ |
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#ifdef _WIN32 |
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vmem_backend = VMEM_BACKEND_MMAP; |
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#else |
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#if 0 |
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void *handle = dlopen("libmapmalloc.so.1", RTLD_NOLOAD); |
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|
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if (handle != NULL) { |
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#endif |
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log_message("sbrk backend disabled\n"); |
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vmem_backend = VMEM_BACKEND_MMAP; |
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#if 0 |
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} |
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#endif |
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#endif |
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|
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if ((vmem_backend & VMEM_BACKEND_MMAP) != 0) { |
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vmem_backend = VMEM_BACKEND_MMAP; |
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(void) vmem_mmap_arena(NULL, NULL); |
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} else { |
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#ifndef _WIN32 |
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vmem_backend = VMEM_BACKEND_SBRK; |
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(void) vmem_sbrk_arena(NULL, NULL); |
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#endif |
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} |
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} |
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|
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/*ARGSUSED*/ |
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void |
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umem_type_init(caddr_t start, size_t len, size_t pgsize) |
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{ |
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#ifdef _WIN32 |
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SYSTEM_INFO info; |
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GetSystemInfo(&info); |
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pagesize = info.dwPageSize; |
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#else |
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pagesize = _sysconf(_SC_PAGESIZE); |
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#endif |
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} |
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|
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int |
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umem_get_max_ncpus(void) |
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{ |
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#ifdef _SC_NPROCESSORS_ONLN |
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return (2 * sysconf(_SC_NPROCESSORS_ONLN)); |
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#elif defined(_SC_NPROCESSORS_CONF) |
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return (2 * sysconf(_SC_NPROCESSORS_CONF)); |
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#elif defined(_WIN32) |
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SYSTEM_INFO info; |
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GetSystemInfo(&info); |
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return info.dwNumberOfProcessors; |
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#else |
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/* XXX: determine CPU count on other platforms */ |
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return (1); |
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#endif |
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} |
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