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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:59:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:59:48 +0000
commit3b9b6d0b8e7f798023c9d109c490449d528fde80 (patch)
tree2e1c188dd7b8d7475cd163de9ae02c428343669b /lib/isc/jemalloc_shim.h
parentInitial commit. (diff)
downloadbind9-3b9b6d0b8e7f798023c9d109c490449d528fde80.tar.xz
bind9-3b9b6d0b8e7f798023c9d109c490449d528fde80.zip
Adding upstream version 1:9.18.19.upstream/1%9.18.19upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--lib/isc/jemalloc_shim.h149
1 files changed, 149 insertions, 0 deletions
diff --git a/lib/isc/jemalloc_shim.h b/lib/isc/jemalloc_shim.h
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+++ b/lib/isc/jemalloc_shim.h
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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) */