/* Prototypes and definition for malloc implementation.
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#ifndef _MALLOC_H
#define _MALLOC_H 1
-/*
- `ptmalloc', a malloc implementation for multiple threads without
- lock contention, by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>.
- See the files `ptmalloc.c' or `COPYRIGHT' for copying conditions.
-
- VERSION 2.6.4-pt Wed Dec 4 00:35:54 MET 1996
-
- This work is mainly derived from malloc-2.6.4 by Doug Lea
- <dl@cs.oswego.edu>, which is available from:
-
- ftp://g.oswego.edu/pub/misc/malloc.c
-
- This trimmed-down header file only provides function prototypes and
- the exported data structures. For more detailed function
- descriptions and compile-time options, see the source file
- `ptmalloc.c'.
-*/
-
-#if defined(__STDC__) || defined (__cplusplus)
+#include <features.h>
#include <stddef.h>
-#define __malloc_ptr_t void *
-#else
-#undef size_t
-#define size_t unsigned int
-#undef ptrdiff_t
-#define ptrdiff_t int
-#define __malloc_ptr_t char *
-#endif
+#include <stdio.h>
+# define __malloc_ptr_t void *
-#ifdef _LIBC
/* Used by GNU libc internals. */
#define __malloc_size_t size_t
#define __malloc_ptrdiff_t ptrdiff_t
-#endif
-#if defined (__STDC__) || defined (__cplusplus) || defined (__GNUC__)
-#define __MALLOC_P(args) args
-#else
-#define __MALLOC_P(args) ()
-#endif
+#ifdef __GNUC__
-#ifndef NULL
-#ifdef __cplusplus
-#define NULL 0
-#else
-#define NULL ((__malloc_ptr_t) 0)
-#endif
-#endif
+# define __MALLOC_P(args) args __THROW
+/* This macro will be used for functions which might take C++ callback
+ functions. */
+# define __MALLOC_PMT(args) args
-#ifdef __cplusplus
-extern "C" {
-#endif
+# ifdef _LIBC
+# define __MALLOC_HOOK_VOLATILE
+# define __MALLOC_DEPRECATED
+# else
+# define __MALLOC_HOOK_VOLATILE volatile
+# define __MALLOC_DEPRECATED __attribute_deprecated__
+# endif
+
+#else /* Not GCC. */
+
+# define __MALLOC_P(args) args
+# define __MALLOC_PMT(args) args
+# define __MALLOC_HOOK_VOLATILE
+# define __MALLOC_DEPRECATED __attribute_deprecated__
+
+#endif /* GCC. */
-/* Initialize global configuration. Not needed with GNU libc. */
-#ifndef __GLIBC__
-extern void ptmalloc_init __MALLOC_P ((void));
-#endif
+
+__BEGIN_DECLS
/* Allocate SIZE bytes of memory. */
-extern __malloc_ptr_t malloc __MALLOC_P ((size_t __size));
+extern void *malloc (size_t __size) __THROW __attribute_malloc__ __wur;
/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
-extern __malloc_ptr_t calloc __MALLOC_P ((size_t __nmemb, size_t __size));
+extern void *calloc (size_t __nmemb, size_t __size)
+ __THROW __attribute_malloc__ __wur;
/* Re-allocate the previously allocated block in __ptr, making the new
block SIZE bytes long. */
-extern __malloc_ptr_t realloc __MALLOC_P ((__malloc_ptr_t __ptr, size_t __size));
+/* __attribute_malloc__ is not used, because if realloc returns
+ the same pointer that was passed to it, aliasing needs to be allowed
+ between objects pointed by the old and new pointers. */
+extern void *realloc (void *__ptr, size_t __size)
+ __THROW __attribute_warn_unused_result__;
/* Free a block allocated by `malloc', `realloc' or `calloc'. */
-extern void free __MALLOC_P ((__malloc_ptr_t __ptr));
+extern void free (void *__ptr) __THROW;
/* Free a block allocated by `calloc'. */
-extern void cfree __MALLOC_P ((__malloc_ptr_t __ptr));
+extern void cfree (void *__ptr) __THROW;
/* Allocate SIZE bytes allocated to ALIGNMENT bytes. */
-extern __malloc_ptr_t memalign __MALLOC_P ((size_t __alignment, size_t __size));
+extern void *memalign (size_t __alignment, size_t __size)
+ __THROW __attribute_malloc__ __wur;
/* Allocate SIZE bytes on a page boundary. */
-extern __malloc_ptr_t valloc __MALLOC_P ((size_t __size));
+extern void *valloc (size_t __size) __THROW __attribute_malloc__ __wur;
/* Equivalent to valloc(minimum-page-that-holds(n)), that is, round up
__size to nearest pagesize. */
-extern __malloc_ptr_t pvalloc __MALLOC_P ((size_t __size));
+extern void * pvalloc (size_t __size) __THROW __attribute_malloc__ __wur;
/* Underlying allocation function; successive calls should return
contiguous pieces of memory. */
-extern __malloc_ptr_t (*__morecore) __MALLOC_P ((ptrdiff_t __size));
+extern void *(*__morecore) (ptrdiff_t __size);
/* Default value of `__morecore'. */
-extern __malloc_ptr_t __default_morecore __MALLOC_P ((ptrdiff_t __size));
+extern void *__default_morecore (ptrdiff_t __size)
+ __THROW __attribute_malloc__;
/* SVID2/XPG mallinfo structure */
-struct mallinfo {
- int arena; /* total space allocated from system */
- int ordblks; /* number of non-inuse chunks */
- int smblks; /* unused -- always zero */
+
+struct mallinfo
+{
+ int arena; /* non-mmapped space allocated from system */
+ int ordblks; /* number of free chunks */
+ int smblks; /* number of fastbin blocks */
int hblks; /* number of mmapped regions */
- int hblkhd; /* total space in mmapped regions */
- int usmblks; /* unused -- always zero */
- int fsmblks; /* unused -- always zero */
+ int hblkhd; /* space in mmapped regions */
+ int usmblks; /* maximum total allocated space */
+ int fsmblks; /* space available in freed fastbin blocks */
int uordblks; /* total allocated space */
- int fordblks; /* total non-inuse space */
+ int fordblks; /* total free space */
int keepcost; /* top-most, releasable (via malloc_trim) space */
};
/* Returns a copy of the updated current mallinfo. */
-extern struct mallinfo mallinfo __MALLOC_P ((void));
+extern struct mallinfo mallinfo (void) __THROW;
/* SVID2/XPG mallopt options */
#ifndef M_MXFAST
-#define M_MXFAST 1 /* UNUSED in this malloc */
+# define M_MXFAST 1 /* maximum request size for "fastbins" */
#endif
#ifndef M_NLBLKS
-#define M_NLBLKS 2 /* UNUSED in this malloc */
+# define M_NLBLKS 2 /* UNUSED in this malloc */
#endif
#ifndef M_GRAIN
-#define M_GRAIN 3 /* UNUSED in this malloc */
+# define M_GRAIN 3 /* UNUSED in this malloc */
#endif
#ifndef M_KEEP
-#define M_KEEP 4 /* UNUSED in this malloc */
+# define M_KEEP 4 /* UNUSED in this malloc */
#endif
/* mallopt options that actually do something */
#define M_TOP_PAD -2
#define M_MMAP_THRESHOLD -3
#define M_MMAP_MAX -4
+#define M_CHECK_ACTION -5
+#define M_PERTURB -6
+#define M_ARENA_TEST -7
+#define M_ARENA_MAX -8
/* General SVID/XPG interface to tunable parameters. */
-extern int mallopt __MALLOC_P ((int __param, int __val));
+extern int mallopt (int __param, int __val) __THROW;
/* Release all but __pad bytes of freed top-most memory back to the
system. Return 1 if successful, else 0. */
-extern int malloc_trim __MALLOC_P ((size_t __pad));
+extern int malloc_trim (size_t __pad) __THROW;
/* Report the number of usable allocated bytes associated with allocated
chunk __ptr. */
-extern size_t malloc_usable_size __MALLOC_P ((__malloc_ptr_t __ptr));
+extern size_t malloc_usable_size (void *__ptr) __THROW;
/* Prints brief summary statistics on stderr. */
-extern void malloc_stats __MALLOC_P ((void));
-
-#ifdef __cplusplus
-}; /* end of extern "C" */
-#endif
-
-#endif /* !defined(_MALLOC_H) */
+extern void malloc_stats (void) __THROW;
+
+/* Output information about state of allocator to stream FP. */
+extern int malloc_info (int __options, FILE *__fp) __THROW;
+
+/* Record the state of all malloc variables in an opaque data structure. */
+extern void *malloc_get_state (void) __THROW;
+
+/* Restore the state of all malloc variables from data obtained with
+ malloc_get_state(). */
+extern int malloc_set_state (void *__ptr) __THROW;
+
+/* Called once when malloc is initialized; redefining this variable in
+ the application provides the preferred way to set up the hook
+ pointers. */
+extern void (*__MALLOC_HOOK_VOLATILE __malloc_initialize_hook) (void)
+ __MALLOC_DEPRECATED;
+/* Hooks for debugging and user-defined versions. */
+extern void (*__MALLOC_HOOK_VOLATILE __free_hook) (void *__ptr,
+ const __malloc_ptr_t)
+ __MALLOC_DEPRECATED;
+extern void *(*__MALLOC_HOOK_VOLATILE __malloc_hook) (size_t __size,
+ const __malloc_ptr_t)
+ __MALLOC_DEPRECATED;
+extern void *(*__MALLOC_HOOK_VOLATILE __realloc_hook) (void *__ptr,
+ size_t __size,
+ const __malloc_ptr_t)
+ __MALLOC_DEPRECATED;
+extern void *(*__MALLOC_HOOK_VOLATILE __memalign_hook) (size_t __alignment,
+ size_t __size,
+ const __malloc_ptr_t)
+ __MALLOC_DEPRECATED;
+extern void (*__MALLOC_HOOK_VOLATILE __after_morecore_hook) (void);
+
+/* Activate a standard set of debugging hooks. */
+extern void __malloc_check_init (void) __THROW __MALLOC_DEPRECATED;
+
+
+__END_DECLS
+
+#endif /* malloc.h */
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