mirror of
https://github.com/adulau/dcfldd.git
synced 2024-12-22 16:56:03 +00:00
88 lines
3 KiB
C
88 lines
3 KiB
C
|
/* xalloc.h -- malloc with out-of-memory checking
|
||
|
|
Copyright (C) 1990-1998, 1999, 2000 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 2, or (at your option)
|
||
|
|
any later version.
|
||
|
|
|
||
|
|
This program 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 General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program; if not, write to the Free Software Foundation,
|
||
|
|
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
|
|
||
|
|
#ifndef XALLOC_H_
|
||
|
|
# define XALLOC_H_
|
||
|
|
|
||
|
|
# ifndef PARAMS
|
||
|
|
# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
|
||
|
|
# define PARAMS(Args) Args
|
||
|
|
# else
|
||
|
|
# define PARAMS(Args) ()
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# ifndef __attribute__
|
||
|
|
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
|
||
|
|
# define __attribute__(x)
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# ifndef ATTRIBUTE_NORETURN
|
||
|
|
# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Exit value when the requested amount of memory is not available.
|
||
|
|
It is initialized to EXIT_FAILURE, but the caller may set it to
|
||
|
|
some other value. */
|
||
|
|
extern int xalloc_exit_failure;
|
||
|
|
|
||
|
|
/* If this pointer is non-zero, run the specified function upon each
|
||
|
|
allocation failure. It is initialized to zero. */
|
||
|
|
extern void (*xalloc_fail_func) PARAMS ((void));
|
||
|
|
|
||
|
|
/* If XALLOC_FAIL_FUNC is undefined or a function that returns, this
|
||
|
|
message is output. It is translated via gettext.
|
||
|
|
Its value is "memory exhausted". */
|
||
|
|
extern char const xalloc_msg_memory_exhausted[];
|
||
|
|
|
||
|
|
/* This function is always triggered when memory is exhausted. It is
|
||
|
|
in charge of honoring the three previous items. This is the
|
||
|
|
function to call when one wants the program to die because of a
|
||
|
|
memory allocation failure. */
|
||
|
|
extern void xalloc_die PARAMS ((void)) ATTRIBUTE_NORETURN;
|
||
|
|
|
||
|
|
void *xmalloc PARAMS ((size_t n));
|
||
|
|
void *xcalloc PARAMS ((size_t n, size_t s));
|
||
|
|
void *xrealloc PARAMS ((void *p, size_t n));
|
||
|
|
char *xstrdup PARAMS ((const char *str));
|
||
|
|
|
||
|
|
# define XMALLOC(Type, N_items) ((Type *) xmalloc (sizeof (Type) * (N_items)))
|
||
|
|
# define XCALLOC(Type, N_items) ((Type *) xcalloc (sizeof (Type), (N_items)))
|
||
|
|
# define XREALLOC(Ptr, Type, N_items) \
|
||
|
|
((Type *) xrealloc ((void *) (Ptr), sizeof (Type) * (N_items)))
|
||
|
|
|
||
|
|
/* Declare and alloc memory for VAR of type TYPE. */
|
||
|
|
# define NEW(Type, Var) Type *(Var) = XMALLOC (Type, 1)
|
||
|
|
|
||
|
|
/* Free VAR only if non NULL. */
|
||
|
|
# define XFREE(Var) \
|
||
|
|
do { \
|
||
|
|
if (Var) \
|
||
|
|
free (Var); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
/* Return a pointer to a malloc'ed copy of the array SRC of NUM elements. */
|
||
|
|
# define CCLONE(Src, Num) \
|
||
|
|
(memcpy (xmalloc (sizeof (*Src) * (Num)), (Src), sizeof (*Src) * (Num)))
|
||
|
|
|
||
|
|
/* Return a malloc'ed copy of SRC. */
|
||
|
|
# define CLONE(Src) CCLONE (Src, 1)
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* !XALLOC_H_ */
|