| | varnish-cache/include/vend.h |
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/*- |
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD |
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* |
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* Copyright (c) 2003,2010 Poul-Henning Kamp <phk@FreeBSD.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* From: |
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* $FreeBSD: head/sys/sys/endian.h 121122 2003-10-15 20:05:57Z obrien $ |
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* |
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* Endian conversion functions |
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*/ |
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#ifndef VEND_H_INCLUDED |
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#define VEND_H_INCLUDED |
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/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */ |
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static __inline uint16_t |
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424888 |
vbe16dec(const void *pp) |
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{ |
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uint8_t const *p = (uint8_t const *)pp; |
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return ((p[0] << 8) | p[1]); |
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} |
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static __inline uint32_t |
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1122299 |
vbe32dec(const void *pp) |
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{ |
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uint8_t const *p = (uint8_t const *)pp; |
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|
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return (((unsigned)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); |
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} |
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static __inline uint64_t |
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365149 |
vbe64dec(const void *pp) |
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{ |
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uint8_t const *p = (uint8_t const *)pp; |
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|
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return (((uint64_t)vbe32dec(p) << 32) | vbe32dec(p + 4)); |
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} |
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#if 0 |
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static __inline uint16_t |
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vle16dec(const void *pp) |
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{ |
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uint8_t const *p = (uint8_t const *)pp; |
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return ((p[1] << 8) | p[0]); |
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} |
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#endif |
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static __inline uint32_t |
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72320 |
vle32dec(const void *pp) |
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{ |
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72320 |
uint8_t const *p = (uint8_t const *)pp; |
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|
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return (((unsigned)p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]); |
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} |
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#if 0 |
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static __inline uint64_t |
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vle64dec(const void *pp) |
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{ |
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uint8_t const *p = (uint8_t const *)pp; |
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return (((uint64_t)vle32dec(p + 4) << 32) | vle32dec(p)); |
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} |
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#endif |
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static __inline void |
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201798 |
vbe16enc(void *pp, uint16_t u) |
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{ |
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uint8_t *p = (uint8_t *)pp; |
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p[0] = (u >> 8) & 0xff; |
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p[1] = u & 0xff; |
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} |
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static __inline void |
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916357 |
vbe32enc(void *pp, uint32_t u) |
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{ |
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916357 |
uint8_t *p = (uint8_t *)pp; |
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916357 |
p[0] = (u >> 24) & 0xff; |
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p[1] = (u >> 16) & 0xff; |
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p[2] = (u >> 8) & 0xff; |
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p[3] = u & 0xff; |
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} |
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static __inline void |
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vbe64enc(void *pp, uint64_t u) |
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{ |
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uint8_t *p = (uint8_t *)pp; |
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vbe32enc(p, (uint32_t)(u >> 32)); |
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vbe32enc(p + 4, (uint32_t)(u & 0xffffffffU)); |
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} |
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static __inline void |
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vle16enc(void *pp, uint16_t u) |
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{ |
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uint8_t *p = (uint8_t *)pp; |
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p[0] = u & 0xff; |
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p[1] = (u >> 8) & 0xff; |
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} |
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static __inline void |
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vle32enc(void *pp, uint32_t u) |
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{ |
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uint8_t *p = (uint8_t *)pp; |
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p[0] = u & 0xff; |
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p[1] = (u >> 8) & 0xff; |
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p[2] = (u >> 16) & 0xff; |
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p[3] = (u >> 24) & 0xff; |
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} |
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#if 0 |
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static __inline void |
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vle64enc(void *pp, uint64_t u) |
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{ |
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uint8_t *p = (uint8_t *)pp; |
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vle32enc(p, (uint32_t)(u & 0xffffffffU)); |
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vle32enc(p + 4, (uint32_t)(u >> 32)); |
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} |
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#endif |
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#endif |