mirror of https://github.com/openzfs/zfs.git
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2024, Klara Inc.
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*/
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#ifndef _ZFS_VALSTR_H
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#define _ZFS_VALSTR_H extern __attribute__((visibility("default")))
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#include <sys/fs/zfs.h>
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* These macros create function prototypes for pretty-printing or stringifying
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* certain kinds of numeric types.
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*
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* _ZFS_VALSTR_DECLARE_BITFIELD(name) creates:
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*
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* size_t zfs_valstr_<name>_bits(uint64_t bits, char *out, size_t outlen);
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* expands single char for each set bit, and space for each clear bit
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*
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* size_t zfs_valstr_<name>_pairs(uint64_t bits, char *out, size_t outlen);
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* expands two-char mnemonic for each bit set in `bits`, separated by `|`
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*
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* size_t zfs_valstr_<name>(uint64_t bits, char *out, size_t outlen);
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* expands full name of each bit set in `bits`, separated by spaces
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*
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* _ZFS_VALSTR_DECLARE_ENUM(name) creates:
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*
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* size_t zfs_valstr_<name>(int v, char *out, size_t outlen);
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* expands full name of enum value
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*
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* Each _ZFS_VALSTR_DECLARE_xxx needs a corresponding _VALSTR_xxx_IMPL string
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* table in vfs_valstr.c.
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*/
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#define _ZFS_VALSTR_DECLARE_BITFIELD(name) \
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_ZFS_VALSTR_H size_t zfs_valstr_ ## name ## _bits( \
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uint64_t bits, char *out, size_t outlen); \
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_ZFS_VALSTR_H size_t zfs_valstr_ ## name ## _pairs( \
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uint64_t bits, char *out, size_t outlen); \
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_ZFS_VALSTR_H size_t zfs_valstr_ ## name( \
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uint64_t bits, char *out, size_t outlen); \
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#define _ZFS_VALSTR_DECLARE_ENUM(name) \
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_ZFS_VALSTR_H size_t zfs_valstr_ ## name( \
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int v, char *out, size_t outlen); \
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_ZFS_VALSTR_DECLARE_BITFIELD(zio_flag)
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_ZFS_VALSTR_DECLARE_BITFIELD(zio_stage)
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_ZFS_VALSTR_DECLARE_ENUM(zio_priority)
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#undef _ZFS_VALSTR_DECLARE_BITFIELD
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#undef _ZFS_VALSTR_DECLARE_ENUM
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ZFS_VALSTR_H */
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