mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-22 18:19:42 +00:00
e20cc41e56
This commit adds support for systems where the jemalloc library is not
available as a package, here's the quick summary:
* On Linux - the jemalloc is usually available as a package, if
configured --without-jemalloc, the shim would be used around
malloc(), free(), realloc() and malloc_usable_size()
* On macOS - the jemalloc is available from homebrew or macports, if
configured --without-jemalloc, the shim would be used around
malloc(), free(), realloc() and malloc_size()
* On FreeBSD - the jemalloc is *the* system allocator, we just need
to check for <malloc_np.h> header to get access to non-standard API
* On NetBSD - the jemalloc is *the* system allocator, we just need to
check for <jemalloc/jemalloc.h> header to get access to non-standard
API
* On a system hostile to users and developers (read OpenBSD) - the
jemalloc API is emulated by using ((size_t *)ptr)[-1] field to hold
the size information. The OpenBSD developers care only for
themselves, so why should we care about speed on OpenBSD?
119 lines
2.1 KiB
C
119 lines
2.1 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#pragma once
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#if !defined(HAVE_JEMALLOC)
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#include <isc/util.h>
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const char *malloc_conf = NULL;
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#if defined(HAVE_MALLOC_SIZE) || defined(HAVE_MALLOC_USABLE_SIZE)
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#include <stdlib.h>
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static inline void *
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mallocx(size_t size, int flags) {
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UNUSED(flags);
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void *__ptr = malloc(size);
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REQUIRE(__ptr != NULL);
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return (__ptr);
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}
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static inline void
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sdallocx(void *ptr, size_t size, int flags) {
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UNUSED(size);
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UNUSED(flags);
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free(ptr);
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}
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static inline void *
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rallocx(void *ptr, size_t size, int flags) {
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UNUSED(flags);
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REQUIRE(size != 0);
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void *__ptr = realloc(ptr, size);
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REQUIRE(__ptr != NULL);
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return (__ptr);
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}
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#ifdef HAVE_MALLOC_SIZE
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#include <malloc/malloc.h>
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static inline size_t
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sallocx(void *ptr, int flags) {
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UNUSED(flags);
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return (malloc_size(ptr));
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}
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#elif HAVE_MALLOC_USABLE_SIZE
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#include <malloc.h>
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static inline size_t
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sallocx(void *ptr, int flags) {
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UNUSED(flags);
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return (malloc_usable_size(ptr));
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}
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#endif /* HAVE_MALLOC_SIZE */
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#else /* defined(HAVE_MALLOC_SIZE) || defined (HAVE_MALLOC_USABLE_SIZE) */
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#include <stdlib.h>
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static inline void *
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mallocx(size_t size, int flags) {
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UNUSED(flags);
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size_t *__ptr = malloc(size + sizeof(size_t));
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REQUIRE(__ptr != NULL);
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__ptr[0] = size;
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return (&__ptr[1]);
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}
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static inline void
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sdallocx(void *ptr, size_t size, int flags) {
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UNUSED(size);
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UNUSED(flags);
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free(&((size_t *)ptr)[-1]);
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}
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static inline size_t
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sallocx(void *ptr, int flags) {
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UNUSED(flags);
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return (((size_t *)ptr)[-1]);
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}
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static inline void *
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rallocx(void *ptr, size_t size, int flags) {
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UNUSED(flags);
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size_t *__ptr = realloc(&((size_t *)ptr)[-1], size);
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REQUIRE(__ptr != NULL);
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__ptr[0] = size;
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return (&__ptr[1]);
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}
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#endif /* defined(HAVE_MALLOC_SIZE) || defined (HAVE_MALLOC_USABLE_SIZE) */
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#endif /* !defined(HAVE_JEMALLOC) */
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