kopia lustrzana https://github.com/espressif/esp-idf
90 wiersze
3.6 KiB
C
90 wiersze
3.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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/* Define a noclone attribute when compiled with GCC as certain functions
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* in the heap component should not be cloned by the compiler */
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#if defined __has_attribute && __has_attribute(noclone)
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#define NOCLONE_ATTR __attribute((noclone))
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#else
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#define NOCLONE_ATTR
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#endif
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/* Define a structure that contains some function pointers that point to OS-related functions.
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An instance of this structure will be provided to the heap in ROM for use if needed.
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*/
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typedef struct {
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void (*lock)(void *lock);
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void (*unlock)(void *lock);
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} multi_heap_os_funcs_t;
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/** @brief Initialize structure pointer that points a structure that contains OS-related functions pointers.
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*
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* @param heap_os_funcs Points to a structure that contains some OS-related function pointers.
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* @return None.
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*
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*/
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void multi_heap_os_funcs_init(multi_heap_os_funcs_t *heap_os_funcs);
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/* Opaque handle to a heap block */
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typedef const struct block_header_t *multi_heap_block_handle_t;
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/* Internal definitions for the "implementation" of the multi_heap API,
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as defined in multi_heap.c.
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If heap poisioning is disabled, these are aliased directly to the public API.
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If heap poisoning is enabled, wrapper functions call each of these.
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*/
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void *multi_heap_malloc_impl(multi_heap_handle_t heap, size_t size);
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/* Allocate a memory region of minimum `size` bytes, aligned on `alignment`. */
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void *multi_heap_aligned_alloc_impl(multi_heap_handle_t heap, size_t size, size_t alignment);
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/* Allocate a memory region of minimum `size` bytes, where memory's `offset` is aligned on `alignment`. */
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void *multi_heap_aligned_alloc_impl_offs(multi_heap_handle_t heap, size_t size, size_t alignment, size_t offset);
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void multi_heap_free_impl(multi_heap_handle_t heap, void *p);
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void *multi_heap_realloc_impl(multi_heap_handle_t heap, void *p, size_t size);
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multi_heap_handle_t multi_heap_register_impl(void *start, size_t size);
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void multi_heap_get_info_impl(multi_heap_handle_t heap, multi_heap_info_t *info);
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size_t multi_heap_free_size_impl(multi_heap_handle_t heap);
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size_t multi_heap_minimum_free_size_impl(multi_heap_handle_t heap);
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size_t multi_heap_get_allocated_size_impl(multi_heap_handle_t heap, void *p);
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void *multi_heap_get_block_address_impl(multi_heap_block_handle_t block);
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/* Some internal functions for heap poisoning use */
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/* Check an allocated block's poison bytes are correct. Called by multi_heap_check(). */
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bool multi_heap_internal_check_block_poisoning(void *start, size_t size, bool is_free, bool print_errors);
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/* Fill a region of memory with the free or malloced pattern.
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Called when merging blocks, to overwrite the old block header.
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*/
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void multi_heap_internal_poison_fill_region(void *start, size_t size, bool is_free);
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/* Allow heap poisoning to lock/unlock the heap to avoid race conditions
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if multi_heap_check() is running concurrently.
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*/
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void multi_heap_internal_lock(multi_heap_handle_t heap);
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void multi_heap_internal_unlock(multi_heap_handle_t heap);
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/* Some internal functions for heap debugging code to use */
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/* Get the handle to the first (fixed free) block in a heap */
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multi_heap_block_handle_t multi_heap_get_first_block(multi_heap_handle_t heap);
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/* Get the handle to the next block in a heap, with validation */
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multi_heap_block_handle_t multi_heap_get_next_block(multi_heap_handle_t heap, multi_heap_block_handle_t block);
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/* Test if a heap block is free */
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bool multi_heap_is_free(const multi_heap_block_handle_t block);
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/* Get the data address of a heap block */
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void *multi_heap_get_block_address(multi_heap_block_handle_t block);
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