xref: /dragonfly/contrib/bmake/make_malloc.h (revision 631c21f2)
1 /*	$NetBSD: make_malloc.h,v 1.16 2021/01/19 20:51:46 rillig Exp $	*/
2 
3 /*
4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef USE_EMALLOC
30 void *bmake_malloc(size_t);
31 void *bmake_realloc(void *, size_t);
32 char *bmake_strdup(const char *);
33 char *bmake_strldup(const char *, size_t);
34 #else
35 #include <util.h>
36 #define bmake_malloc(n)		emalloc(n)
37 #define bmake_realloc(p, n)	erealloc(p, n)
38 #define bmake_strdup(s)		estrdup(s)
39 #define bmake_strldup(s, n)	estrndup(s, n)
40 #endif
41 
42 char *bmake_strsedup(const char *, const char *);
43 
44 /*
45  * Thin wrapper around free(3) to avoid the extra function call in case
46  * p is NULL, to save a few machine instructions.
47  *
48  * The case of a NULL pointer happens especially often after Var_Value,
49  * since only environment variables need to be freed, but not others.
50  */
51 MAKE_INLINE void
52 bmake_free(void *p)
53 {
54 	if (p != NULL)
55 		free(p);
56 }
57