projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| 94e9e396 DE |
1 | /* |
| 2 | * memory wrappers | |
| 3 | * | |
| 4 | * Copyright (c) Artem Bityutskiy, 2007, 2008 | |
| 5 | * Copyright 2001, 2002 Red Hat, Inc. | |
| 6 | * 2001 David A. Schleef <ds@lineo.com> | |
| 7 | * 2002 Axis Communications AB | |
| 8 | * 2001, 2002 Erik Andersen <andersen@codepoet.org> | |
| 9 | * 2004 University of Szeged, Hungary | |
| 10 | * 2006 KaiGai Kohei <kaigai@ak.jp.nec.com> | |
| 11 | * | |
| 12 | * This program is free software; you can redistribute it and/or modify | |
| 13 | * it under the terms of the GNU General Public License as published by | |
| 14 | * the Free Software Foundation; either version 2 of the License, or | |
| 15 | * (at your option) any later version. | |
| 16 | * | |
| 17 | * This program is distributed in the hope that it will be useful, | |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
| 20 | * the GNU General Public License for more details. | |
| 21 | * | |
| 22 | * You should have received a copy of the GNU General Public License | |
| 23 | * along with this program; if not, write to the Free Software | |
| fa07eaa6 | 24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 94e9e396 DE |
25 | */ |
| 26 | ||
| 27 | #ifndef __MTD_UTILS_XALLOC_H__ | |
| 28 | #define __MTD_UTILS_XALLOC_H__ | |
| 29 | ||
| 30 | #include <stdarg.h> | |
| 31 | #include <stdlib.h> | |
| 32 | #include <string.h> | |
| 33 | ||
| 34 | /* | |
| 35 | * Mark these functions as unused so that gcc does not emit warnings | |
| 36 | * when people include this header but don't use every function. | |
| 37 | */ | |
| 38 | ||
| 39 | __attribute__((unused)) | |
| 40 | static void *xmalloc(size_t size) | |
| 41 | { | |
| 42 | void *ptr = malloc(size); | |
| 43 | ||
| 44 | if (ptr == NULL && size != 0) | |
| 45 | sys_errmsg_die("out of memory"); | |
| 46 | return ptr; | |
| 47 | } | |
| 48 | ||
| 49 | __attribute__((unused)) | |
| 50 | static void *xcalloc(size_t nmemb, size_t size) | |
| 51 | { | |
| 52 | void *ptr = calloc(nmemb, size); | |
| 53 | ||
| 54 | if (ptr == NULL && nmemb != 0 && size != 0) | |
| 55 | sys_errmsg_die("out of memory"); | |
| 56 | return ptr; | |
| 57 | } | |
| 58 | ||
| 59 | __attribute__((unused)) | |
| 60 | static void *xzalloc(size_t size) | |
| 61 | { | |
| 62 | return xcalloc(1, size); | |
| 63 | } | |
| 64 | ||
| 65 | __attribute__((unused)) | |
| 66 | static void *xrealloc(void *ptr, size_t size) | |
| 67 | { | |
| 68 | ptr = realloc(ptr, size); | |
| 69 | if (ptr == NULL && size != 0) | |
| 70 | sys_errmsg_die("out of memory"); | |
| 71 | return ptr; | |
| 72 | } | |
| 73 | ||
| 74 | __attribute__((unused)) | |
| 75 | static char *xstrdup(const char *s) | |
| 76 | { | |
| 77 | char *t; | |
| 78 | ||
| 79 | if (s == NULL) | |
| 80 | return NULL; | |
| 81 | t = strdup(s); | |
| 82 | if (t == NULL) | |
| 83 | sys_errmsg_die("out of memory"); | |
| 84 | return t; | |
| 85 | } | |
| 86 | ||
| 87 | #ifdef _GNU_SOURCE | |
| 88 | ||
| 89 | __attribute__((unused)) | |
| 90 | static int xasprintf(char **strp, const char *fmt, ...) | |
| 91 | { | |
| 92 | int cnt; | |
| 93 | va_list ap; | |
| 94 | ||
| 95 | va_start(ap, fmt); | |
| 96 | cnt = vasprintf(strp, fmt, ap); | |
| 97 | va_end(ap); | |
| 98 | ||
| 99 | if (cnt == -1) | |
| 100 | sys_errmsg_die("out of memory"); | |
| 101 | ||
| 102 | return cnt; | |
| 103 | } | |
| 104 | #endif | |
| 105 | ||
| 106 | #endif /* !__MTD_UTILS_XALLOC_H__ */ |