/* $NetBSD: mm-internal.h,v 1.1.1.3 2021/04/07 02:43:12 christos Exp $ */ /* * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef MM_INTERNAL_H_INCLUDED_ #define MM_INTERNAL_H_INCLUDED_ #include #ifdef __cplusplus extern "C" { #endif #ifndef EVENT__DISABLE_MM_REPLACEMENT /* Internal use only: Memory allocation functions. We give them nice short * mm_names for our own use, but make sure that the symbols have longer names * so they don't conflict with other libraries (like, say, libmm). */ /** Allocate uninitialized memory. * * @return On success, return a pointer to sz newly allocated bytes. * On failure, set errno to ENOMEM and return NULL. * If the argument sz is 0, simply return NULL. */ EVENT2_EXPORT_SYMBOL void *event_mm_malloc_(size_t sz); /** Allocate memory initialized to zero. * * @return On success, return a pointer to (count * size) newly allocated * bytes, initialized to zero. * On failure, or if the product would result in an integer overflow, * set errno to ENOMEM and return NULL. * If either arguments are 0, simply return NULL. */ EVENT2_EXPORT_SYMBOL void *event_mm_calloc_(size_t count, size_t size); /** Duplicate a string. * * @return On success, return a pointer to a newly allocated duplicate * of a string. * Set errno to ENOMEM and return NULL if a memory allocation error * occurs (or would occur) in the process. * If the argument str is NULL, set errno to EINVAL and return NULL. */ EVENT2_EXPORT_SYMBOL char *event_mm_strdup_(const char *str); EVENT2_EXPORT_SYMBOL void *event_mm_realloc_(void *p, size_t sz); EVENT2_EXPORT_SYMBOL void event_mm_free_(void *p); #define mm_malloc(sz) event_mm_malloc_(sz) #define mm_calloc(count, size) event_mm_calloc_((count), (size)) #define mm_strdup(s) event_mm_strdup_(s) #define mm_realloc(p, sz) event_mm_realloc_((p), (sz)) #define mm_free(p) event_mm_free_(p) #else #define mm_malloc(sz) malloc(sz) #define mm_calloc(n, sz) calloc((n), (sz)) #define mm_strdup(s) strdup(s) #define mm_realloc(p, sz) realloc((p), (sz)) #define mm_free(p) free(p) #endif #ifdef __cplusplus } #endif #endif