Differential D4249 Diff 10457 sys/contrib/libnv/nv_impl.h

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sys/contrib/libnv/nv_impl.h

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				/*-
				* Copyright (c) 2013 The FreeBSD Foundation
				* Copyright (c) 2013-2015 Mariusz Zaborski <oshogbo@FreeBSD.org>
				* All rights reserved.
				*
				* This software was developed by Pawel Jakub Dawidek under sponsorship from
				* the FreeBSD Foundation.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				* 1. Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* 2. Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in the
				* documentation and/or other materials provided with the distribution.
				*
				* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
				* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				* SUCH DAMAGE.
				*
				* $FreeBSD: head/sys/contrib/libnv/nv_impl.h 286796 2015-08-15 06:34:49Z oshogbo $
				*/

				#ifndef _NV_IMPL_H_
				#define _NV_IMPL_H_

				#ifndef _NVPAIR_T_DECLARED
				#define _NVPAIR_T_DECLARED
				struct nvpair;

				typedef struct nvpair nvpair_t;
				#endif

				#define NV_TYPE_NVLIST_ARRAY_NEXT 254
				#define NV_TYPE_NVLIST_UP 255

				#define NV_TYPE_FIRST NV_TYPE_NULL
				#define NV_TYPE_LAST NV_TYPE_DESCRIPTOR_ARRAY

				#define NV_FLAG_BIG_ENDIAN 0x080
				#define NV_FLAG_IN_ARRAY 0x100

				#ifdef _KERNEL
				#define nv_malloc(size) malloc((size), M_NVLIST, M_WAITOK)
				#define nv_calloc(n, size) malloc((n) * (size), M_NVLIST, \
				M_WAITOK \| M_ZERO)
				#define nv_realloc(buf, size) realloc((buf), (size), M_NVLIST, \
				M_WAITOK)
				#define nv_free(buf) free((buf), M_NVLIST)
				#define nv_strdup(buf) strdup((buf), M_NVLIST)
				#define nv_vasprintf(ptr, ...) vasprintf(ptr, M_NVLIST, __VA_ARGS__)

				#define ERRNO_SET(var) do { } while (0)
				#define ERRNO_SAVE() do { do { } while(0)
				#define ERRNO_RESTORE() } while (0)

				#define ERRNO_OR_DEFAULT(default) (default)

				#else

				#define nv_malloc(size) malloc((size))
				#define nv_calloc(n, size) calloc((n), (size))
				#define nv_realloc(buf, size) realloc((buf), (size))
				#define nv_free(buf) free((buf))
				#define nv_strdup(buf) strdup((buf))
				#define nv_vasprintf(ptr, ...) vasprintf(ptr, __VA_ARGS__)

				#define ERRNO_SET(var) do { errno = (var); } while (0)
				#define ERRNO_SAVE() do { \
				int _serrno; \
				\
				_serrno = errno

				#define ERRNO_RESTORE() errno = _serrno; \
				} while (0)

				#define ERRNO_OR_DEFAULT(default) (errno == 0 ? (default) : errno)

				#endif

				int nvlist_descriptors(const nvlist_t nvl, size_t *nitemsp);
				size_t nvlist_ndescriptors(const nvlist_t *nvl);
				void nvlist_set_flags(nvlist_t *nvl, int flags);

				nvpair_t nvlist_first_nvpair(const nvlist_t nvl);
				nvpair_t nvlist_next_nvpair(const nvlist_t nvl, const nvpair_t *nvp);
				nvpair_t nvlist_prev_nvpair(const nvlist_t nvl, const nvpair_t *nvp);

				void nvlist_add_nvpair(nvlist_t nvl, const nvpair_t nvp);

				bool nvlist_move_nvpair(nvlist_t nvl, nvpair_t nvp);

				void nvlist_set_parent(nvlist_t nvl, nvpair_t parent);
				void nvlist_set_array_next(nvlist_t nvl, nvpair_t ele);

				const nvpair_t nvlist_get_nvpair(const nvlist_t nvl, const char *name);

				nvpair_t nvlist_take_nvpair(nvlist_t nvl, const char *name);

				/* Function removes the given nvpair from the nvlist. */
				void nvlist_remove_nvpair(nvlist_t nvl, nvpair_t nvp);

				void nvlist_free_nvpair(nvlist_t nvl, nvpair_t nvp);

				int nvpair_type(const nvpair_t *nvp);
				const char nvpair_name(const nvpair_t nvp);

				nvpair_t nvpair_clone(const nvpair_t nvp);

				nvpair_t nvpair_create_null(const char name);
				nvpair_t nvpair_create_bool(const char name, bool value);
				nvpair_t nvpair_create_number(const char name, uint64_t value);
				nvpair_t nvpair_create_string(const char name, const char *value);
				nvpair_t nvpair_create_stringf(const char name, const char *valuefmt, ...) __printflike(2, 3);
				nvpair_t nvpair_create_stringv(const char name, const char *valuefmt, va_list valueap) __printflike(2, 0);
				nvpair_t nvpair_create_nvlist(const char name, const nvlist_t *value);
				nvpair_t nvpair_create_descriptor(const char name, int value);
				nvpair_t nvpair_create_binary(const char name, const void *value, size_t size);
				nvpair_t nvpair_create_bool_array(const char name, const bool *value, size_t nitems);
				nvpair_t nvpair_create_number_array(const char name, const uint64_t *value, size_t nitems);
				nvpair_t nvpair_create_string_array(const char name, const char * const *value, size_t nitems);
				nvpair_t nvpair_create_nvlist_array(const char name, const nvlist_t * const *value, size_t nitems);
				nvpair_t nvpair_create_descriptor_array(const char name, const int *value, size_t nitems);

				nvpair_t nvpair_move_string(const char name, char *value);
				nvpair_t nvpair_move_nvlist(const char name, nvlist_t *value);
				nvpair_t nvpair_move_descriptor(const char name, int value);
				nvpair_t nvpair_move_binary(const char name, void *value, size_t size);
				nvpair_t nvpair_move_bool_array(const char name, bool *value, size_t nitems);
				nvpair_t nvpair_move_nvlist_array(const char name, nvlist_t **value, size_t nitems);
				nvpair_t nvpair_move_descriptor_array(const char name, int *value, size_t nitems);
				nvpair_t nvpair_move_number_array(const char name, uint64_t *value, size_t nitems);
				nvpair_t nvpair_move_string_array(const char name, char **value, size_t nitems);

				bool nvpair_get_bool(const nvpair_t *nvp);
				uint64_t nvpair_get_number(const nvpair_t *nvp);
				const char nvpair_get_string(const nvpair_t nvp);
				const nvlist_t nvpair_get_nvlist(const nvpair_t nvp);
				int nvpair_get_descriptor(const nvpair_t *nvp);
				const void nvpair_get_binary(const nvpair_t nvp, size_t *sizep);
				const bool nvpair_get_bool_array(const nvpair_t nvp, size_t *nitemsp);
				const uint64_t nvpair_get_number_array(const nvpair_t nvp, size_t *nitemsp);
				const char * const nvpair_get_string_array(const nvpair_t nvp, size_t *nitemsp);
				const nvlist_t * const nvpair_get_nvlist_array(const nvpair_t nvp, size_t *nitemsp);
				const int nvpair_get_descriptor_array(const nvpair_t nvp, size_t *nitemsp);

				void nvpair_free(nvpair_t *nvp);

				#endif /* !_NV_IMPL_H_ */