214 lines
6.4 KiB
C
214 lines
6.4 KiB
C
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/*
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Copyright (c) 2001 Wolfram Gloger
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Copyright (c) 2006 Cavium networks
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Permission to use, copy, modify, distribute, and sell this software
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and its documentation for any purpose is hereby granted without fee,
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provided that (i) the above copyright notices and this permission
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notice appear in all copies of the software and related documentation,
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and (ii) the name of Wolfram Gloger may not be used in any advertising
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or publicity relating to the software.
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THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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IN NO EVENT SHALL WOLFRAM GLOGER BE LIABLE FOR ANY SPECIAL,
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INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY
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DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY
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OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _MALLOC_H
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#define _MALLOC_H 1
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#undef _LIBC
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#ifdef _LIBC
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#include <features.h>
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#endif
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/*
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$Id: malloc.h 30481 2007-12-05 21:46:59Z rfranz $
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`ptmalloc2', a malloc implementation for multiple threads without
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lock contention, by Wolfram Gloger <wg@malloc.de>.
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VERSION 2.7.0
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This work is mainly derived from malloc-2.7.0 by Doug Lea
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<dl@cs.oswego.edu>, which is available from:
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ftp://gee.cs.oswego.edu/pub/misc/malloc.c
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This trimmed-down header file only provides function prototypes and
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the exported data structures. For more detailed function
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descriptions and compile-time options, see the source file
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`malloc.c'.
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*/
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#if 0
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# include <stddef.h>
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# define __malloc_ptr_t void *
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# undef size_t
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# define size_t unsigned long
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# undef ptrdiff_t
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# define ptrdiff_t long
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#else
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# undef Void_t
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# define Void_t void
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# define __malloc_ptr_t char *
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#endif
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#ifdef _LIBC
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/* Used by GNU libc internals. */
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# define __malloc_size_t size_t
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# define __malloc_ptrdiff_t ptrdiff_t
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#elif !defined __attribute_malloc__
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# define __attribute_malloc__
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#endif
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#ifdef __GNUC__
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/* GCC can always grok prototypes. For C++ programs we add throw()
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to help it optimize the function calls. But this works only with
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gcc 2.8.x and egcs. */
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# if defined __cplusplus && (__GNUC__ >= 3 || __GNUC_MINOR__ >= 8)
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# define __THROW throw ()
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# else
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# define __THROW
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# endif
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# define __MALLOC_P(args) args __THROW
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/* This macro will be used for functions which might take C++ callback
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functions. */
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# define __MALLOC_PMT(args) args
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#else /* Not GCC. */
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# define __THROW
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# if (defined __STDC__ && __STDC__) || defined __cplusplus
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# define __MALLOC_P(args) args
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# define __MALLOC_PMT(args) args
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# else /* Not ANSI C or C++. */
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# define __MALLOC_P(args) () /* No prototypes. */
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# define __MALLOC_PMT(args) ()
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# endif /* ANSI C or C++. */
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#endif /* GCC. */
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#ifndef NULL
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# ifdef __cplusplus
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# define NULL 0
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# else
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# define NULL ((__malloc_ptr_t) 0)
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# endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Nonzero if the malloc is already initialized. */
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#ifdef _LIBC
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/* In the GNU libc we rename the global variable
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`__malloc_initialized' to `__libc_malloc_initialized'. */
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# define __malloc_initialized __libc_malloc_initialized
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#endif
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extern int cvmx__malloc_initialized;
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/* SVID2/XPG mallinfo structure */
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struct mallinfo {
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int arena; /* non-mmapped space allocated from system */
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int ordblks; /* number of free chunks */
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int smblks; /* number of fastbin blocks */
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int hblks; /* number of mmapped regions */
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int hblkhd; /* space in mmapped regions */
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int usmblks; /* maximum total allocated space */
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int fsmblks; /* space available in freed fastbin blocks */
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int uordblks; /* total allocated space */
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int fordblks; /* total free space */
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int keepcost; /* top-most, releasable (via malloc_trim) space */
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};
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/* Returns a copy of the updated current mallinfo. */
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extern struct mallinfo mallinfo __MALLOC_P ((void));
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/* SVID2/XPG mallopt options */
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#ifndef M_MXFAST
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# define M_MXFAST 1 /* maximum request size for "fastbins" */
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#endif
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#ifndef M_NLBLKS
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# define M_NLBLKS 2 /* UNUSED in this malloc */
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#endif
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#ifndef M_GRAIN
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# define M_GRAIN 3 /* UNUSED in this malloc */
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#endif
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#ifndef M_KEEP
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# define M_KEEP 4 /* UNUSED in this malloc */
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#endif
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/* mallopt options that actually do something */
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#define M_TRIM_THRESHOLD -1
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#define M_TOP_PAD -2
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#define M_MMAP_THRESHOLD -3
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#define M_MMAP_MAX -4
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#define M_CHECK_ACTION -5
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/* General SVID/XPG interface to tunable parameters. */
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extern int mallopt __MALLOC_P ((int __param, int __val));
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/* Release all but __pad bytes of freed top-most memory back to the
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system. Return 1 if successful, else 0. */
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extern int malloc_trim __MALLOC_P ((size_t __pad));
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/* Report the number of usable allocated bytes associated with allocated
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chunk __ptr. */
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extern size_t malloc_usable_size __MALLOC_P ((__malloc_ptr_t __ptr));
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/* Prints brief summary statistics on stderr. */
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extern void malloc_stats __MALLOC_P ((void));
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/* Record the state of all malloc variables in an opaque data structure. */
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extern __malloc_ptr_t malloc_get_state __MALLOC_P ((void));
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/* Restore the state of all malloc variables from data obtained with
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malloc_get_state(). */
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extern int malloc_set_state __MALLOC_P ((__malloc_ptr_t __ptr));
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/* Called once when malloc is initialized; redefining this variable in
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the application provides the preferred way to set up the hook
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pointers. */
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extern void (*cmvx__malloc_initialize_hook) __MALLOC_PMT ((void));
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/* Hooks for debugging and user-defined versions. */
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extern void (*cvmx__free_hook) __MALLOC_PMT ((__malloc_ptr_t __ptr,
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__const __malloc_ptr_t));
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extern __malloc_ptr_t (*cvmx__malloc_hook) __MALLOC_PMT ((size_t __size,
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__const __malloc_ptr_t));
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extern __malloc_ptr_t (*cvmx__realloc_hook) __MALLOC_PMT ((__malloc_ptr_t __ptr,
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size_t __size,
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__const __malloc_ptr_t));
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extern __malloc_ptr_t (*cvmx__memalign_hook) __MALLOC_PMT ((size_t __alignment,
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size_t __size,
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__const __malloc_ptr_t));
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extern void (*__after_morecore_hook) __MALLOC_PMT ((void));
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/* Activate a standard set of debugging hooks. */
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extern void cvmx__malloc_check_init __MALLOC_P ((void));
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/* Internal routines, operating on "arenas". */
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struct malloc_state;
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typedef struct malloc_state *mstate;
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#ifdef __cplusplus
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}; /* end of extern "C" */
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#endif
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#endif /* malloc.h */
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