/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
*/
#include "cx/allocator.h"
__attribute__((__malloc__, __alloc_size__(2)))
static void *cx_malloc_stdlib(
__attribute__((__unused__)) void *d,
size_t n
) {
return malloc(n);
}
__attribute__((__warn_unused_result__, __alloc_size__(3)))
static void *cx_realloc_stdlib(
__attribute__((__unused__)) void *d,
void *mem,
size_t n
) {
return realloc(mem, n);
}
__attribute__((__malloc__, __alloc_size__(2, 3)))
static void *cx_calloc_stdlib(
__attribute__((__unused__)) void *d,
size_t nelem,
size_t n
) {
return calloc(nelem, n);
}
__attribute__((__nonnull__))
static void cx_free_stdlib(
__attribute__((__unused__)) void *d,
void *mem
) {
free(mem);
}
static cx_allocator_class cx_default_allocator_class = {
cx_malloc_stdlib,
cx_realloc_stdlib,
cx_calloc_stdlib,
cx_free_stdlib
};
struct cx_allocator_s cx_default_allocator = {
&cx_default_allocator_class,
NULL
};
CxAllocator *cxDefaultAllocator = &cx_default_allocator;
int cx_reallocate(
void **mem,
size_t n
) {
void *nmem = realloc(*mem, n);
if (nmem == NULL) {
return 1;
} else {
*mem = nmem;
return 0;
}
}
// IMPLEMENTATION OF HIGH LEVEL API
void *cxMalloc(
const CxAllocator *allocator,
size_t n
) {
return allocator->cl->malloc(allocator->data, n);
}
void *cxRealloc(
const CxAllocator *allocator,
void *mem,
size_t n
) {
return allocator->cl->realloc(allocator->data, mem, n);
}
int cxReallocate(
const CxAllocator *allocator,
void **mem,
size_t n
) {
void *nmem = allocator->cl->realloc(allocator->data, *mem, n);
if (nmem == NULL) {
return 1;
} else {
*mem = nmem;
return 0;
}
}
void *cxCalloc(
const CxAllocator *allocator,
size_t nelem,
size_t n
) {
return allocator->cl->calloc(allocator->data, nelem, n);
}
void cxFree(
const CxAllocator *allocator,
void *mem
) {
allocator->cl->free(allocator->data, mem);
}