/* $NetBSD: jemalloc_shim.h,v 1.2.2.2 2024/02/25 15:47:16 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ #pragma once #if !defined(HAVE_JEMALLOC) #include #include const char *malloc_conf = NULL; /* Without jemalloc, isc_mem_get_align() is equal to isc_mem_get() */ #define MALLOCX_ALIGN(a) (a & 0) /* Clear the flag */ #define MALLOCX_ZERO ((int)0x40) #define MALLOCX_TCACHE_NONE (0) #define MALLOCX_ARENA(a) (0) #if defined(HAVE_MALLOC_SIZE) || defined(HAVE_MALLOC_USABLE_SIZE) #include static inline void * mallocx(size_t size, int flags) { UNUSED(flags); return (malloc(size)); } static inline void sdallocx(void *ptr, size_t size, int flags) { UNUSED(size); UNUSED(flags); free(ptr); } static inline void * rallocx(void *ptr, size_t size, int flags) { UNUSED(flags); REQUIRE(size != 0); return (realloc(ptr, size)); } #ifdef HAVE_MALLOC_SIZE #include static inline size_t sallocx(void *ptr, int flags) { UNUSED(flags); return (malloc_size(ptr)); } #elif HAVE_MALLOC_USABLE_SIZE #ifdef __DragonFly__ /* * On DragonFly BSD 'man 3 malloc' advises us to include the following * header to have access to malloc_usable_size(). */ #include #else #include #endif static inline size_t sallocx(void *ptr, int flags) { UNUSED(flags); return (malloc_usable_size(ptr)); } #endif /* HAVE_MALLOC_SIZE */ #else /* defined(HAVE_MALLOC_SIZE) || defined (HAVE_MALLOC_USABLE_SIZE) */ #include typedef union { size_t size; max_align_t __alignment; } size_info; static inline void * mallocx(size_t size, int flags) { void *ptr = NULL; UNUSED(flags); size_info *si = malloc(size + sizeof(*si)); INSIST(si != NULL); si->size = size; ptr = &si[1]; return (ptr); } static inline void sdallocx(void *ptr, size_t size, int flags) { size_info *si = &(((size_info *)ptr)[-1]); UNUSED(size); UNUSED(flags); free(si); } static inline size_t sallocx(void *ptr, int flags) { size_info *si = &(((size_info *)ptr)[-1]); UNUSED(flags); return (si[0].size); } static inline void * rallocx(void *ptr, size_t size, int flags) { size_info *si = &(((size_info *)ptr)[-1]); UNUSED(flags); si = realloc(si, size + sizeof(*si)); INSIST(si != NULL); si->size = size; ptr = &si[1]; return (ptr); } #endif /* defined(HAVE_MALLOC_SIZE) || defined (HAVE_MALLOC_USABLE_SIZE) */ #endif /* !defined(HAVE_JEMALLOC) */