gecko/memory/jemalloc/jemalloc.h

105 lines
3.8 KiB
C

/* -*- Mode: C; tab-width: 8; c-basic-offset: 8 -*- */
/* vim:set softtabstop=8 shiftwidth=8: */
/*-
* Copyright (C) 2006-2008 Jason Evans <jasone@FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice(s), this list of conditions and the following disclaimer as
* the first lines of this file unmodified other than the possible
* addition of one or more copyright notices.
* 2. Redistributions in binary form must reproduce the above copyright
* notice(s), this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _JEMALLOC_H_
#define _JEMALLOC_H_
/* grab size_t */
#ifdef _MSC_VER
#include <crtdefs.h>
#else
#include <stddef.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned char jemalloc_bool;
extern const char *_malloc_options;
/*
* jemalloc_stats() is not a stable interface. When using jemalloc_stats_t, be
* sure that the compiled results of jemalloc.c are in sync with this header
* file.
*/
typedef struct {
/*
* Run-time configuration settings.
*/
jemalloc_bool opt_abort; /* abort(3) on error? */
jemalloc_bool opt_junk; /* Fill allocated/free memory with 0xa5/0x5a? */
jemalloc_bool opt_utrace; /* Trace all allocation events? */
jemalloc_bool opt_sysv; /* SysV semantics? */
jemalloc_bool opt_xmalloc; /* abort(3) on OOM? */
jemalloc_bool opt_zero; /* Fill allocated memory with 0x0? */
size_t narenas; /* Number of arenas. */
size_t balance_threshold; /* Arena contention rebalance threshold. */
size_t quantum; /* Allocation quantum. */
size_t small_max; /* Max quantum-spaced allocation size. */
size_t large_max; /* Max sub-chunksize allocation size. */
size_t chunksize; /* Size of each virtual memory mapping. */
size_t dirty_max; /* Max dirty pages per arena. */
/*
* Current memory usage statistics.
*/
size_t mapped; /* Bytes mapped (not necessarily committed). */
size_t committed; /* Bytes committed (readable/writable). */
size_t allocated; /* Bytes allocted (in use by application). */
size_t dirty; /* Bytes dirty (committed unused pages). */
} jemalloc_stats_t;
/* Darwin and Linux already have memory allocation functions */
#if (!defined(MOZ_MEMORY_DARWIN) && !defined(MOZ_MEMORY_LINUX))
void *malloc(size_t size);
void *valloc(size_t size);
void *calloc(size_t num, size_t size);
void *realloc(void *ptr, size_t size);
void free(void *ptr);
int posix_memalign(void **memptr, size_t alignment, size_t size);
#endif /* MOZ_MEMORY_DARWIN, MOZ_MEMORY_LINUX */
/* Linux has memalign */
#if !defined(MOZ_MEMORY_LINUX)
void *memalign(size_t alignment, size_t size);
#endif /* MOZ_MEMORY_LINUX */
size_t malloc_usable_size(const void *ptr);
void jemalloc_stats(jemalloc_stats_t *stats);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* _JEMALLOC_H_ */