107 lines
2.4 KiB
C
Executable File
107 lines
2.4 KiB
C
Executable File
/*
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* memory wrappers
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*
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* Copyright (c) Artem Bityutskiy, 2007, 2008
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* Copyright 2001, 2002 Red Hat, Inc.
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* 2001 David A. Schleef <ds@lineo.com>
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* 2002 Axis Communications AB
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* 2001, 2002 Erik Andersen <andersen@codepoet.org>
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* 2004 University of Szeged, Hungary
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* 2006 KaiGai Kohei <kaigai@ak.jp.nec.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __MTD_UTILS_XALLOC_H__
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#define __MTD_UTILS_XALLOC_H__
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#include <stdlib.h>
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#include <string.h>
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/*
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* Mark these functions as unused so that gcc does not emit warnings
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* when people include this header but don't use every function.
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*/
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__attribute__((unused))
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static void *xmalloc(size_t size)
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{
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void *ptr = malloc(size);
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if (ptr == NULL && size != 0)
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sys_errmsg_die("out of memory");
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return ptr;
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}
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__attribute__((unused))
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static void *xcalloc(size_t nmemb, size_t size)
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{
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void *ptr = calloc(nmemb, size);
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if (ptr == NULL && nmemb != 0 && size != 0)
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sys_errmsg_die("out of memory");
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return ptr;
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}
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__attribute__((unused))
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static void *xzalloc(size_t size)
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{
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return xcalloc(1, size);
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}
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__attribute__((unused))
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static void *xrealloc(void *ptr, size_t size)
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{
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ptr = realloc(ptr, size);
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if (ptr == NULL && size != 0)
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sys_errmsg_die("out of memory");
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return ptr;
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}
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__attribute__((unused))
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static char *xstrdup(const char *s)
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{
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char *t;
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if (s == NULL)
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return NULL;
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t = strdup(s);
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if (t == NULL)
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sys_errmsg_die("out of memory");
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return t;
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}
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#ifdef _GNU_SOURCE
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#include <stdarg.h>
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__attribute__((unused))
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static int xasprintf(char **strp, const char *fmt, ...)
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{
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int cnt;
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va_list ap;
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va_start(ap, fmt);
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cnt = vasprintf(strp, fmt, ap);
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va_end(ap);
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if (cnt == -1)
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sys_errmsg_die("out of memory");
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return cnt;
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}
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#endif
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#endif /* !__MTD_UTILS_XALLOC_H__ */
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