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