99a2dd955f
There is no reason for the DPDK libraries to all have 'librte_' prefix on the directory names. This prefix makes the directory names longer and also makes it awkward to add features referring to individual libraries in the build - should the lib names be specified with or without the prefix. Therefore, we can just remove the library prefix and use the library's unique name as the directory name, i.e. 'eal' rather than 'librte_eal' Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (C) 1996, 1997, 1998 Theodore Ts'o.
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*/
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/**
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* @file
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*
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* UUID related functions originally from libuuid
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*/
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#ifndef _RTE_UUID_H_
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#define _RTE_UUID_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdbool.h>
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#include <stddef.h>
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#include <string.h>
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/**
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* Struct describing a Universal Unique Identifier
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*/
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typedef unsigned char rte_uuid_t[16];
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/**
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* Helper for defining UUID values for id tables.
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*/
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#define RTE_UUID_INIT(a, b, c, d, e) { \
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((a) >> 24) & 0xff, ((a) >> 16) & 0xff, \
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((a) >> 8) & 0xff, (a) & 0xff, \
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((b) >> 8) & 0xff, (b) & 0xff, \
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((c) >> 8) & 0xff, (c) & 0xff, \
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((d) >> 8) & 0xff, (d) & 0xff, \
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((e) >> 40) & 0xff, ((e) >> 32) & 0xff, \
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((e) >> 24) & 0xff, ((e) >> 16) & 0xff, \
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((e) >> 8) & 0xff, (e) & 0xff \
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}
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/**
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* Test if UUID is all zeros.
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*
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* @param uu
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* The uuid to check.
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* @return
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* true if uuid is NULL value, false otherwise
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*/
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bool rte_uuid_is_null(const rte_uuid_t uu);
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/**
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* Copy uuid.
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*
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* @param dst
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* Destination uuid
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* @param src
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* Source uuid
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*/
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static inline void rte_uuid_copy(rte_uuid_t dst, const rte_uuid_t src)
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{
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memcpy(dst, src, sizeof(rte_uuid_t));
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}
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/**
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* Compare two UUID's
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*
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* @param a
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* A UUID to compare
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* @param b
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* A UUID to compare
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* @return
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* returns an integer less than, equal to, or greater than zero if UUID a is
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* is less than, equal, or greater than UUID b.
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*/
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int rte_uuid_compare(const rte_uuid_t a, const rte_uuid_t b);
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/**
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* Extract UUID from string
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*
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* @param in
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* Pointer to string of characters to convert
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* @param uu
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* Destination UUID
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* @return
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* Returns 0 on success, and -1 if string is not a valid UUID.
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*/
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int rte_uuid_parse(const char *in, rte_uuid_t uu);
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/**
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* Convert UUID to string
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*
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* @param uu
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* UUID to format
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* @param out
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* Resulting string buffer
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* @param len
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* Sizeof the available string buffer
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*/
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#define RTE_UUID_STRLEN (36 + 1)
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void rte_uuid_unparse(const rte_uuid_t uu, char *out, size_t len);
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#ifdef __cplusplus
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}
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#endif
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#endif /* RTE_UUID_H */
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