diff options
author | Ulrich Drepper <drepper@redhat.com> | 1996-12-08 08:01:13 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1996-12-08 08:01:13 +0000 |
commit | f65fd747b440ae2d8a7481ecc50e668c5e4d0cc9 (patch) | |
tree | f64c3eeda0e9acc58b96c28ca852a014c822047f /malloc/malloc.h | |
parent | 42054ddb496798d9b936490cf0050f6619f86bc1 (diff) | |
download | glibc-f65fd747b440ae2d8a7481ecc50e668c5e4d0cc9.zip glibc-f65fd747b440ae2d8a7481ecc50e668c5e4d0cc9.tar.gz glibc-f65fd747b440ae2d8a7481ecc50e668c5e4d0cc9.tar.bz2 |
update from main archive 961207cvs/libc-961208
Sun Dec 8 06:56:49 1996 Ulrich Drepper <drepper@cygnus.com>
* io/getwd.c: Use PATH_MAX not LOCAL_PATH_MAX. Fix typo in
comment.
* stdlib/canonicalize.c: Correct bugs in last change.
Patch by HJ Lu.
* libio/Makefile (routines): Remove ioprims.
(aux): Remove cleanup.
Add IO_DEBUG option for .o files.
* libio/cleanups.c: Removed.
* libio/ioprims.c: Removed.
* libio/filedoalloc.c: More updates from libg++-2.8b5.
* libio/fileops.c: Likewise.
* libio/genops.c: Likewise.
* libio/iolibio.h: Likewise.
* libio/iopopen.c: Likewise.
* libio/iovsprintf.c: Likewise.
* libio/iovsscanf.c: Likewise.
* libio/libio.h: Likewise.
* libio/libioP.h: Likewise.
* libio/memstream.c: Likewise.
* libio/strfile.h: Likewise.
* libio/vasprintf.c: Likewise.
* libio/vsnprintf.c: Likewise.
* libio/stdio.h: Define P_tmpdir only is __USE_SVID.
* manual/arith.texi: Change references to ANSI C to ISO C.
* manual/conf.texi: Likewise.
* manual/creature.texi: Likewise.
* manual/ctype.texi: Likewise.
* manual/errno.texi: Likewise.
* manual/filesys.texi: Likewise.
* manual/intro.texi. Likewise.
* manual/io.texi: Likewise.
* manual/lang.texi: Likewise.
* manual/libc.texinfo: Likewise.
* manual/locale.texi: Likewise.
* manual/maint.texi: Likewise.
* manual/mbyte.texi: Likewise.
* manual/memory.texi: Likewise.
* manual/process.texi: Likewise.
* manual/process.texi: Likewise.
* manual/search.texi: Likewise.
* manual/setjmp.texi: Likewise.
* manual/signal.texi: Likewise.
* manual/startup.texi: Likewise.
* manual/stdio.texi: Likewise.
* manual/string.texi: Likewise.
* manual/time.texi: Likewise.
* manual/locale.texi: Remove description of LC_RESPONSE and add
LC_MESSAGES.
* Makefile (subdirs): Change malloc in $(malloc).
* config.make.in: Add variable malloc which is initialized from
@malloc@.
* configure.in: Add new option --enable-new-malloc to use new
malloc. This is the default on Linux.
* sysdeps/unix/sysv/linux/configure.in: Define malloc to new-malloc
by default.
* new-malloc/Makefile: New file. Improved malloc implementation.
* new-malloc/malloc.c: Likewise.
* new-malloc/malloc.h: Likewise.
* new-malloc/mallocbug.c: Likewise.
* new-malloc/obstack.c: Likewise.
* new-malloc/obstack.h: Likewise.
* new-malloc/thread-m.h: Likewise.
* time/Makefile: Compile ap.c with NO_MCHECK flag for now.
* time/ap.c: Don't call mcheck if NO_MCHECK is defined.
* resolv/Makefile: Add rule to rebuiild libresolv.so when libc.so
changed.
* stdio/feof.c: Update copyright.
* stdio/stdio.h: Add field for lock to FILE structure.
Add cast to *MAGIC constants to prevent warnings.
* stdio-common/bug7.c: Correct test. Stream must not be closed
twice.
* stdlib/Makefile (routines): Add secure-getenv.
* stdlib/secure-getenv.c: New file. __secure_getenv function
moved to here from sysdeps/generic/getenv.c. Otherwise an
application cannot replace the getenv function in the libc.
* sysdeps/generic/getenv.c: Remove __secure_getenv function.
* sysdeps/stub/getenv.c: Remove __secure_getenv alias.
* sysdeps/mach/libc-lock.h: Define__libc_mutex_lock to __mutex_lock.
* sysdeps/posix/fdopen.c: Update copyright. Don't use EXFUN.
* time/test-tz.c: Comment fifth test out. PROBLEM.
* time/tzset.c: De-ANSI-declfy.
(__tzset): Don't increment pointer tz when no DST information is
given.
Sat Dec 7 23:47:54 1996 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/mach/libc-lock.h [_LIBC]: Add definition of
__libc_mutex_lock.
Patch by Thomas Bushnell.
* sysdeps/unix/sysv/linux/timebits.h: Load <asm/param.h> only
if __USE_MISC.
* sysdeps/unix/sysv/linux/Dist: Add llseek.c.
Sat Dec 7 12:18:56 1996 Ulrich Drepper <drepper@cygnus.com>
* time/strftime (%c format): Remove %Z from default string.
Reported by Paul Eggert
* io/getwd.c: Don't apply getcwd on user supplied buffer.
Diffstat (limited to 'malloc/malloc.h')
-rw-r--r-- | malloc/malloc.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/malloc/malloc.h b/malloc/malloc.h new file mode 100644 index 0000000..57f6e33 --- /dev/null +++ b/malloc/malloc.h @@ -0,0 +1,169 @@ +/* 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 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 + +/* 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 + +/* 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)); + +#ifdef __cplusplus +}; /* end of extern "C" */ +#endif + +#endif /* !defined(_PTMALLOC_H_) */ |