1*75f6d617Schristos /* $NetBSD: xalloc.h,v 1.1.1.1 2016/01/13 03:15:30 christos Exp $ */ 2*75f6d617Schristos 3*75f6d617Schristos /* xalloc.h -- malloc with out-of-memory checking 4*75f6d617Schristos Copyright (C) 1990-1998, 1999, 2000, 2002 Free Software Foundation, Inc. 5*75f6d617Schristos 6*75f6d617Schristos This program is free software; you can redistribute it and/or modify 7*75f6d617Schristos it under the terms of the GNU General Public License as published by 8*75f6d617Schristos the Free Software Foundation; either version 2, or (at your option) 9*75f6d617Schristos any later version. 10*75f6d617Schristos 11*75f6d617Schristos This program is distributed in the hope that it will be useful, 12*75f6d617Schristos but WITHOUT ANY WARRANTY; without even the implied warranty of 13*75f6d617Schristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*75f6d617Schristos GNU General Public License for more details. 15*75f6d617Schristos 16*75f6d617Schristos You should have received a copy of the GNU General Public License 17*75f6d617Schristos along with this program; if not, write to the Free Software Foundation, 18*75f6d617Schristos Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 19*75f6d617Schristos 20*75f6d617Schristos #ifndef XALLOC_H_ 21*75f6d617Schristos # define XALLOC_H_ 22*75f6d617Schristos 23*75f6d617Schristos # ifndef PARAMS 24*75f6d617Schristos # if defined PROTOTYPES || (defined __STDC__ && __STDC__) 25*75f6d617Schristos # define PARAMS(Args) Args 26*75f6d617Schristos # else 27*75f6d617Schristos # define PARAMS(Args) () 28*75f6d617Schristos # endif 29*75f6d617Schristos # endif 30*75f6d617Schristos 31*75f6d617Schristos # ifndef __attribute__ 32*75f6d617Schristos # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ 33*75f6d617Schristos # define __attribute__(x) 34*75f6d617Schristos # endif 35*75f6d617Schristos # endif 36*75f6d617Schristos 37*75f6d617Schristos # ifndef ATTRIBUTE_NORETURN 38*75f6d617Schristos # define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) 39*75f6d617Schristos # endif 40*75f6d617Schristos 41*75f6d617Schristos /* If this pointer is non-zero, run the specified function upon each 42*75f6d617Schristos allocation failure. It is initialized to zero. */ 43*75f6d617Schristos extern void (*xalloc_fail_func) PARAMS ((void)); 44*75f6d617Schristos 45*75f6d617Schristos /* If XALLOC_FAIL_FUNC is undefined or a function that returns, this 46*75f6d617Schristos message is output. It is translated via gettext. 47*75f6d617Schristos Its value is "memory exhausted". */ 48*75f6d617Schristos extern char const xalloc_msg_memory_exhausted[]; 49*75f6d617Schristos 50*75f6d617Schristos /* This function is always triggered when memory is exhausted. It is 51*75f6d617Schristos in charge of honoring the three previous items. This is the 52*75f6d617Schristos function to call when one wants the program to die because of a 53*75f6d617Schristos memory allocation failure. */ 54*75f6d617Schristos extern void xalloc_die PARAMS ((void)) ATTRIBUTE_NORETURN; 55*75f6d617Schristos 56*75f6d617Schristos void *xmalloc PARAMS ((size_t n)); 57*75f6d617Schristos void *xcalloc PARAMS ((size_t n, size_t s)); 58*75f6d617Schristos void *xrealloc PARAMS ((void *p, size_t n)); 59*75f6d617Schristos char *xstrdup PARAMS ((const char *str)); 60*75f6d617Schristos 61*75f6d617Schristos # define XMALLOC(Type, N_items) ((Type *) xmalloc (sizeof (Type) * (N_items))) 62*75f6d617Schristos # define XCALLOC(Type, N_items) ((Type *) xcalloc (sizeof (Type), (N_items))) 63*75f6d617Schristos # define XREALLOC(Ptr, Type, N_items) \ 64*75f6d617Schristos ((Type *) xrealloc ((void *) (Ptr), sizeof (Type) * (N_items))) 65*75f6d617Schristos 66*75f6d617Schristos /* Declare and alloc memory for VAR of type TYPE. */ 67*75f6d617Schristos # define NEW(Type, Var) Type *(Var) = XMALLOC (Type, 1) 68*75f6d617Schristos 69*75f6d617Schristos /* Free VAR only if non NULL. */ 70*75f6d617Schristos # define XFREE(Var) \ 71*75f6d617Schristos do { \ 72*75f6d617Schristos if (Var) \ 73*75f6d617Schristos free (Var); \ 74*75f6d617Schristos } while (0) 75*75f6d617Schristos 76*75f6d617Schristos /* Return a pointer to a malloc'ed copy of the array SRC of NUM elements. */ 77*75f6d617Schristos # define CCLONE(Src, Num) \ 78*75f6d617Schristos (memcpy (xmalloc (sizeof (*Src) * (Num)), (Src), sizeof (*Src) * (Num))) 79*75f6d617Schristos 80*75f6d617Schristos /* Return a malloc'ed copy of SRC. */ 81*75f6d617Schristos # define CLONE(Src) CCLONE (Src, 1) 82*75f6d617Schristos 83*75f6d617Schristos 84*75f6d617Schristos #endif /* !XALLOC_H_ */ 85