openmv/common/xalloc.c
iabdalkader daf2bb30da misc: Restructure repo.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2025-04-13 08:28:34 +02:00

76 lines
2.4 KiB
C

/*
* SPDX-License-Identifier: MIT
*
* Copyright (C) 2013-2024 OpenMV, LLC.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* Memory allocation functions.
*/
#include <string.h>
#include "py/runtime.h"
#include "py/gc.h"
#include "py/mphal.h"
#include "xalloc.h"
NORETURN static void xalloc_fail(uint32_t size) {
mp_raise_msg_varg(&mp_type_MemoryError,
MP_ERROR_TEXT("memory allocation failed, allocating %u bytes"), (uint) size);
}
// returns null pointer without error if size==0
void *xalloc(uint32_t size) {
void *mem = gc_alloc(size, false);
if (size && (mem == NULL)) {
xalloc_fail(size);
}
return mem;
}
// returns null pointer without error if size==0
void *xalloc_try_alloc(uint32_t size) {
return gc_alloc(size, false);
}
// returns null pointer without error if size==0
void *xalloc0(uint32_t size) {
void *mem = gc_alloc(size, false);
if (size && (mem == NULL)) {
xalloc_fail(size);
}
memset(mem, 0, size);
return mem;
}
// returns without error if mem==null
void xfree(void *mem) {
gc_free(mem);
}
// returns null pointer without error if size==0
// allocs if mem==null and size!=0
// frees if mem!=null and size==0
void *xrealloc(void *mem, uint32_t size) {
mem = gc_realloc(mem, size, true);
if (size && (mem == NULL)) {
xalloc_fail(size);
}
return mem;
}