mm-internal.h revision 1.2.6.2 1 1.2.6.2 snj /* $NetBSD: mm-internal.h,v 1.2.6.2 2014/12/25 02:34:43 snj Exp $ */
2 1.2.6.2 snj
3 1.2.6.2 snj /*
4 1.2.6.2 snj * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
5 1.2.6.2 snj *
6 1.2.6.2 snj * Redistribution and use in source and binary forms, with or without
7 1.2.6.2 snj * modification, are permitted provided that the following conditions
8 1.2.6.2 snj * are met:
9 1.2.6.2 snj * 1. Redistributions of source code must retain the above copyright
10 1.2.6.2 snj * notice, this list of conditions and the following disclaimer.
11 1.2.6.2 snj * 2. Redistributions in binary form must reproduce the above copyright
12 1.2.6.2 snj * notice, this list of conditions and the following disclaimer in the
13 1.2.6.2 snj * documentation and/or other materials provided with the distribution.
14 1.2.6.2 snj * 3. The name of the author may not be used to endorse or promote products
15 1.2.6.2 snj * derived from this software without specific prior written permission.
16 1.2.6.2 snj *
17 1.2.6.2 snj * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 1.2.6.2 snj * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 1.2.6.2 snj * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 1.2.6.2 snj * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 1.2.6.2 snj * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 1.2.6.2 snj * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 1.2.6.2 snj * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 1.2.6.2 snj * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 1.2.6.2 snj * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 1.2.6.2 snj * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 1.2.6.2 snj */
28 1.2.6.2 snj #ifndef MM_INTERNAL_H_INCLUDED_
29 1.2.6.2 snj #define MM_INTERNAL_H_INCLUDED_
30 1.2.6.2 snj
31 1.2.6.2 snj #include <sys/types.h>
32 1.2.6.2 snj
33 1.2.6.2 snj #ifdef __cplusplus
34 1.2.6.2 snj extern "C" {
35 1.2.6.2 snj #endif
36 1.2.6.2 snj
37 1.2.6.2 snj #ifndef EVENT__DISABLE_MM_REPLACEMENT
38 1.2.6.2 snj /* Internal use only: Memory allocation functions. We give them nice short
39 1.2.6.2 snj * mm_names for our own use, but make sure that the symbols have longer names
40 1.2.6.2 snj * so they don't conflict with other libraries (like, say, libmm). */
41 1.2.6.2 snj
42 1.2.6.2 snj /** Allocate uninitialized memory.
43 1.2.6.2 snj *
44 1.2.6.2 snj * @return On success, return a pointer to sz newly allocated bytes.
45 1.2.6.2 snj * On failure, set errno to ENOMEM and return NULL.
46 1.2.6.2 snj * If the argument sz is 0, simply return NULL.
47 1.2.6.2 snj */
48 1.2.6.2 snj void *event_mm_malloc_(size_t sz);
49 1.2.6.2 snj
50 1.2.6.2 snj /** Allocate memory initialized to zero.
51 1.2.6.2 snj *
52 1.2.6.2 snj * @return On success, return a pointer to (count * size) newly allocated
53 1.2.6.2 snj * bytes, initialized to zero.
54 1.2.6.2 snj * On failure, or if the product would result in an integer overflow,
55 1.2.6.2 snj * set errno to ENOMEM and return NULL.
56 1.2.6.2 snj * If either arguments are 0, simply return NULL.
57 1.2.6.2 snj */
58 1.2.6.2 snj void *event_mm_calloc_(size_t count, size_t size);
59 1.2.6.2 snj
60 1.2.6.2 snj /** Duplicate a string.
61 1.2.6.2 snj *
62 1.2.6.2 snj * @return On success, return a pointer to a newly allocated duplicate
63 1.2.6.2 snj * of a string.
64 1.2.6.2 snj * Set errno to ENOMEM and return NULL if a memory allocation error
65 1.2.6.2 snj * occurs (or would occur) in the process.
66 1.2.6.2 snj * If the argument str is NULL, set errno to EINVAL and return NULL.
67 1.2.6.2 snj */
68 1.2.6.2 snj char *event_mm_strdup_(const char *str);
69 1.2.6.2 snj
70 1.2.6.2 snj void *event_mm_realloc_(void *p, size_t sz);
71 1.2.6.2 snj void event_mm_free_(void *p);
72 1.2.6.2 snj #define mm_malloc(sz) event_mm_malloc_(sz)
73 1.2.6.2 snj #define mm_calloc(count, size) event_mm_calloc_((count), (size))
74 1.2.6.2 snj #define mm_strdup(s) event_mm_strdup_(s)
75 1.2.6.2 snj #define mm_realloc(p, sz) event_mm_realloc_((p), (sz))
76 1.2.6.2 snj #define mm_free(p) event_mm_free_(p)
77 1.2.6.2 snj #else
78 1.2.6.2 snj #define mm_malloc(sz) malloc(sz)
79 1.2.6.2 snj #define mm_calloc(n, sz) calloc((n), (sz))
80 1.2.6.2 snj #define mm_strdup(s) strdup(s)
81 1.2.6.2 snj #define mm_realloc(p, sz) realloc((p), (sz))
82 1.2.6.2 snj #define mm_free(p) free(p)
83 1.2.6.2 snj #endif
84 1.2.6.2 snj
85 1.2.6.2 snj #ifdef __cplusplus
86 1.2.6.2 snj }
87 1.2.6.2 snj #endif
88 1.2.6.2 snj
89 1.2.6.2 snj #endif
90