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glibc/malloc/malloc.h
Ulrich Drepper 6d52618b15 Update from main archive 961219 
Thu Dec 19 23:28:33 1996  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/resolv.h: Update from BIND 4.9.5-P1.
	* resolv/res_comp.c: Likewise.
	* resolv/res_debug.c: Likewise.
	* resolv/Banner: Update version number.

Thu Dec 19 20:58:53 1996  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dlfcn.h: Add extern "C" wrapper.

	* io/utime.h: Don't define NULL since this isn't allowed in POSIX.
	* io/sys/stat.h: Declare `lstat' only if __USE_BSD ||
	__USE_XOPEN_EXTENDED.
	* locale/locale.h: Define NULL.
	* math/math.c: Don't include <errno.h> to define math errors.
	* stdlib/stdlib.h: Likewise.
	* posix/unistd.h: Don't declare environ.
	* posix/sys/utsname.h (struct utsname): Declare member domainname
	as __domainname is !__USE_GNU.
	* signal/signal.h: Declare size_t only if __USE_BSD ||
	__USE_XOPEN_EXTENDED.
	* stdio/stdio.h: Don't declare cuserid when __USE_POSIX, but
	instead when __USE_XOPEN.
	* string/string.h: Define strndup only if __USE_GNU.
	* sysdeps/unix/sysv/linux/clock.c: New file.
	* sysdeps/unix/sysv/linux/timebits.h: Define CLOCKS_PER_SEC as
	1000000 per X/Open standard.
	* features.h: Add code to recognize _POSIX_C_SOURCE value 199309.
	Define __USE_POSIX199309.
	* posix/unistd.h: Declare fdatasync only if __USE_POSIX199309.
	* time/time.c: Declare nanosleep only if __USE_POSIX199309.
	Patches by Rüdiger Helsch <rh@unifix.de>.

	* locale/locale.h: Add declaration of newlocale and freelocale.

	* new-malloc/Makefile (distibute): Add mtrace.awk.
	(dist-routines): Add mcheck and mtrace.
	(install-lib, non-lib.a): Define as libmcheck.a.
	* new-malloc/malloc.h: Add declaration of __malloc_initialized.
	* new-malloc/mcheck.c: New file.
	* new-malloc/mcheck.h: New file.
	* new-malloc/mtrace.c: New file.
	* new-malloc/mtrace.awk: New file.

	* posix/unistd.h: Correct prototype for usleep.
	* sysdeps/unix/bsd/usleep.c: De-ANSI-declfy.  Correct return type.
	* sysdeps/unix/sysv/linux/usleep.c: Real implementation based on
	nanosleep.

	* signal/signal.h: Change protoype of __sigpause to take two
	arguments.  Remove prototype for sigpause.  Add two different
	macros named sigpause selected when __USE_BSD or __USE_XOPEN
	are defined.  This is necessary since the old BSD definition
	of theis function collides with the X/Open definition.
	* sysdeps/posix/sigpause.c: Change function definition to also
	fit X/Open definition.

	* sysdeps/libm-i387/e_exp.S: Make sure stack is empty when the
	function is left.
	* sysdeps/libm-i387/e_expl.S: Likewise.
	Patch by HJ Lu.

1996-12-17  Paul Eggert  <eggert@twinsun.com>

	* many, many files: Spelling corrections.
	* catgets/catgetsinfo.h (mmapped):
	Renamed from mmaped (in struct catalog_info.status).
	* mach/err_kern.sub (err_codes_unix), string/stratcliff.c (main):
	Fix spelling in message.
	* po/libc.pot: Fix spelling in message for `zic'; this anticipates
	a fix in the tzcode distribution.

Wed Dec 18 15:48:02 1996  Ulrich Drepper  <drepper@cygnus.com>

	* time/strftime.c: Implement ^ flag to cause output be converted
	to use upper case characters.

	* time/zic.c: Update from ADO tzcode1996n.

Wed Dec 18 14:29:24 1996  Erik Naggum  <erik@naggum.no>

	* time/strftime.c (add): Don't change global `i' until all is over.
	Define NULL is not already defined.

Tue Dec 17 09:49:03 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/iovsprintf.c (_IO_vsprintf): Change `&sf' to `&sf._sbf._f'
	to avoid the need for a cast.
	* libio/iovsscanf.c (_IO_vsscanf): Likewise.

	* sunrpc/rpc/xdr.h: Add prototype for xdr_free.
1996-12-20 01:39:50 +00:00

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/* Prototypes and definition for malloc implementation.
Copyright (C) 1996 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.
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.
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. */
#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 <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
#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
#ifndef NULL
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((__malloc_ptr_t) 0)
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Nonzero if the malloc is already initialized. */
extern int __malloc_initialized;
/* Initialize global configuration. Not needed with GNU libc. */
#ifndef __GLIBC__
extern void ptmalloc_init __MALLOC_P ((void));
#endif
/* Allocate SIZE bytes of memory. */
extern __malloc_ptr_t malloc __MALLOC_P ((size_t __size));
/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
extern __malloc_ptr_t calloc __MALLOC_P ((size_t __nmemb, size_t __size));
/* 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));
/* Free a block allocated by `malloc', `realloc' or `calloc'. */
extern void free __MALLOC_P ((__malloc_ptr_t __ptr));
/* Free a block allocated by `calloc'. */
extern void cfree __MALLOC_P ((__malloc_ptr_t __ptr));
/* Allocate SIZE bytes allocated to ALIGNMENT bytes. */
extern __malloc_ptr_t memalign __MALLOC_P ((size_t __alignment, size_t __size));
/* Allocate SIZE bytes on a page boundary. */
extern __malloc_ptr_t valloc __MALLOC_P ((size_t __size));
/* 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));
/* Underlying allocation function; successive calls should return
contiguous pieces of memory. */
extern __malloc_ptr_t (*__morecore) __MALLOC_P ((ptrdiff_t __size));
/* Default value of `__morecore'. */
extern __malloc_ptr_t __default_morecore __MALLOC_P ((ptrdiff_t __size));
/* 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 */
int hblks; /* number of mmapped regions */
int hblkhd; /* total space in mmapped regions */
int usmblks; /* unused -- always zero */
int fsmblks; /* unused -- always zero */
int uordblks; /* total allocated space */
int fordblks; /* total non-inuse 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));
/* SVID2/XPG mallopt options */
#ifndef M_MXFAST
#define M_MXFAST 1 /* UNUSED in this malloc */
#endif
#ifndef M_NLBLKS
#define M_NLBLKS 2 /* UNUSED in this malloc */
#endif
#ifndef M_GRAIN
#define M_GRAIN 3 /* UNUSED in this malloc */
#endif
#ifndef M_KEEP
#define M_KEEP 4 /* UNUSED in this malloc */
#endif
/* mallopt options that actually do something */
#define M_TRIM_THRESHOLD -1
#define M_TOP_PAD -2
#define M_MMAP_THRESHOLD -3
#define M_MMAP_MAX -4
#define M_CHECK_ACTION -5
/* General SVID/XPG interface to tunable parameters. */
extern int mallopt __MALLOC_P ((int __param, int __val));
/* 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));
/* Report the number of usable allocated bytes associated with allocated
chunk __ptr. */
extern size_t malloc_usable_size __MALLOC_P ((__malloc_ptr_t __ptr));
/* Prints brief summary statistics on stderr. */
extern void malloc_stats __MALLOC_P ((void));
#if defined(__GLIBC__) || defined(MALLOC_HOOKS)
/* Hooks for debugging versions. */
extern void (*__malloc_initialize_hook) __MALLOC_P ((void));
extern void (*__free_hook) __MALLOC_P ((__malloc_ptr_t __ptr));
extern __malloc_ptr_t (*__malloc_hook) __MALLOC_P ((size_t __size));
extern __malloc_ptr_t (*__realloc_hook) __MALLOC_P ((__malloc_ptr_t __ptr,
size_t __size));
extern __malloc_ptr_t (*__memalign_hook) __MALLOC_P ((size_t __size,
size_t __alignment));
/* Activate a standard set of debugging hooks. */
extern void malloc_check_init __MALLOC_P ((void));
#endif
#ifdef __cplusplus
}; /* end of extern "C" */
#endif
#endif /* !defined(_MALLOC_H) */
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