/* * 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 #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; }