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/*
* 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 <stddef.h>
#include <isc/util.h>
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 <stdlib.h>
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 <malloc/malloc.h>
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 <malloc_np.h>
#else
#include <malloc.h>
#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 <stdlib.h>
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) */
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