29 lines
991 B
C
29 lines
991 B
C
// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2023 Scott Shawcroft for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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// Ports provide a heap for allocations that live outside the VM. The VM heap
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// is allocated into it in split chunks. The supervisor provides a default heap
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// implementation for ports that don't have one of their own. Allocations done
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// to the outer heap *must* be explicitly managed. Only VM allocations are garbage
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// collected.
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// Called after port_init(). Ports can init the heap earlier in `port_init()` if
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// they need and leave this empty. Splitting this out allows us to provide a weak
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// implementation to use by default.
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void port_heap_init(void);
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void *port_malloc(size_t size, bool dma_capable);
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void port_free(void *ptr);
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void *port_realloc(void *ptr, size_t size);
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size_t port_heap_get_largest_free_size(void);
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