33 lines
870 B
C++
33 lines
870 B
C++
// Copyright (c) Vitaliy Filippov, 2019+
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// License: VNPL-1.1 (see README.md for details)
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#pragma once
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#include <stdint.h>
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#pragma GCC visibility push(default)
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// Hierarchical bitmap allocator
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class allocator_t
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{
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uint64_t total;
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uint64_t size;
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uint64_t free;
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uint64_t last_one_mask;
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uint64_t *mask;
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public:
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allocator_t(uint64_t blocks);
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~allocator_t();
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bool get(uint64_t addr);
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void set(uint64_t addr, bool value);
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uint64_t find_free();
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uint64_t get_free_count();
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};
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void bitmap_set(void *bitmap, uint64_t start, uint64_t len, uint64_t bitmap_granularity);
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void bitmap_clear(void *bitmap, uint64_t start, uint64_t len, uint64_t bitmap_granularity);
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bool bitmap_check(void *bitmap, uint64_t start, uint64_t len, uint64_t bitmap_granularity);
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void mem_or(void *res, const void *r2, size_t len);
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#pragma GCC visibility pop
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