17 lines
512 B
C
17 lines
512 B
C
// SPDX-License-Identifier: ISC
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#pragma once
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#include <sys/types.h>
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#include <inttypes.h>
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// conversion between hilbert curve distance and x,y values
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__attribute__((pure))
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uint32_t y16t_hilbert_xy2d(uint32_t n, uint32_t x, uint32_t y);
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void y16t_hilbert_d2xy(uint32_t n, uint32_t d, uint32_t *x, uint32_t *y);
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// handling of resumption of pread/pwrite calls
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ssize_t y16t_pread_all(int fd, void *buf, size_t nbyte, off_t offset);
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ssize_t y16t_pwrite_all(int fd, const void *buf, size_t nbyte, off_t offset);
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