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nvlist_add_byte(3nvpair)
Name-value Pair Library Functions
nvlist_add_boolean(3NVPAIR)
NAME
nvlist_add_boolean, nvlist_add_boolean_value, nvlist_add_byte,
nvlist_add_int8, nvlist_add_uint8, nvlist_add_int16, nvlist_add_uint16,
nvlist_add_int32, nvlist_add_uint32, nvlist_add_int64,
nvlist_add_uint64, nvlist_add_double, nvlist_add_string,
nvlist_add_nvlist, nvlist_add_nvpair, nvlist_add_boolean_array,
nvlist_add_byte_array, nvlist_add_int8_array, nvlist_add_uint8_array,
nvlist_add_int16_array, nvlist_add_uint16_array,
nvlist_add_int32_array, nvlist_add_uint32_array,
nvlist_add_int64_array, nvlist_add_uint64_array, nvlist_add_dou‐
ble_array, nvlist_add_string_array, nvlist_add_nvlist_array - add new
name-value pair to nvlist_t
SYNOPSIS
cc [ flag... ] file... -lnvpair [ library... ]
#include <libnvpair.h>
int nvlist_add_boolean(nvlist_t *nvl, const char *name);
int nvlist_add_boolean_value(nvlist_t *nvl,
const char *name, boolean_t val);
int nvlist_add_byte(nvlist_t *nvl, const char *name,
uchar_t val);
int nvlist_add_int8(nvlist_t *nvl, const char *name,
int8_t val);
int nvlist_add_uint8(nvlist_t *nvl, const char *name,
uint8_t val);
int nvlist_add_int16(nvlist_t *nvl, const char *name,
int16_t val);
int nvlist_add_uint16(nvlist_t *nvl, const char *name,
uint16_t val);
int nvlist_add_int32(nvlist_t *nvl, const char *name,
int32_t val);
int nvlist_add_uint32(nvlist_t *nvl, const char *name,
uint32_t val);
int nvlist_add_int64(nvlist_t *nvl, const char *name,
int64_t val);
int nvlist_add_uint64(nvlist_t *nvl, const char *name,
uint64_t val);
int nvlist_add_double(nvlist_t *nvl, const char *name,
double val);
int nvlist_add_string(nvlist_t *nvl, const char *name,
const char *val);
int nvlist_add_nvlist(nvlist_t *nvl, const char *name,
nvlist_t *val);
int nvlist_add_nvpair(nvlist_t *nvl, nvpair_t *nvp);
int nvlist_add_boolean_array(nvlist_t *nvl, const char *name,
boolean_t *val, uint_t nelem);
int nvlist_add_byte_array(nvlist_t *nvl, const char *name,
uchar_t *val, uint_t nelem);
int nvlist_add_int8_array(nvlist_t *nvl, const char *name,
int8_t *val, uint_t nelem);
int nvlist_add_uint8_array(nvlist_t *nvl, const char *name,
uint8_t *val, uint_t nelem);
int nvlist_add_int16_array(nvlist_t *nvl, const char *name,
int16_t *val, uint_t nelem);
int nvlist_add_uint16_array(nvlist_t *nvl, const char *name,
uint16_t *val, uint_t nelem);
int nvlist_add_int32_array(nvlist_t *nvl, const char *name,
int32_t *val, uint_t nelem);
int nvlist_add_uint32_array(nvlist_t *nvl, const char *name,
uint32_t *val, uint_t nelem);
int nvlist_add_int64_array(nvlist_t *nvl, const char *name,
int64_t *val, uint_t nelem);
int nvlist_add_uint64_array(nvlist_t *nvl, const char *name,
uint64_t *val, uint_t nelem);
int nvlist_add_double_array(nvlist_t *nvl, const char *name,
double_t *val, uint_t nelem);
int nvlist_add_string_array(nvlist_t *nvl, const char *name,
char *const *val, uint_t nelem);
int nvlist_add_nvlist_array(nvlist_t *nvl, const char *name,
nvlist_t **val, uint_t nelem);
PARAMETERS
nvl The nvlist_t (name-value pair list) to be processed.
nvp The nvpair_t (name-value pair) to be processed.
name Name of the nvpair (name-value pair).
nelem Number of elements in value (that is, array size).
val Value or starting address of the array value.
DESCRIPTION
These functions add a new name-value pair to an nvlist_t. The unique‐
ness of nvpair name and data types follows the nvflag argument speci‐
fied for nvlist_alloc(). See nvlist_alloc(3NVPAIR).
If NV_UNIQUE_NAME was specified for nvflag, existing nvpairs with
matching names are removed before the new nvpair is added.
If NV_UNIQUE_NAME_TYPE was specified for nvflag, existing nvpairs with
matching names and data types are removed before the new nvpair is
added.
If neither was specified for nvflag, the new nvpair is unconditionally
added at the end of the list. The library preserves the order of the
name-value pairs across packing, unpacking, and duplication.
Multiple threads can simultaneously read the same nvlist_t, but only
one thread can actively change a given nvlist_t at a time. The caller
is responsible for the synchronization.
The list that is added to the parent nvlist_t by calling
nvlist_add_nvlist() is copied and thus is not freed when nvlist_free()
is called on the parent list. To prevent memory leaks, your code needs
to look like the following (error handling elided for clarity):
nvlist_t *parent_nvl;
nvlist_t *child_nvl;
/* create parent list, add an entry */
(void) nvlist_alloc(&parent_nvl, NV_UNIQUE_NAME, KM_SLEEP);
(void) nvlist_add_boolean_value(parent_nvl, "parent_bool", B_FALSE);
/* create child list, add an entry */
(void) nvlist_alloc(&child_nvl, NV_UNIQUE_NAME, KM_SLEEP);
(void) nvlist_add_boolean_value(child_nvl, "child_bool", B_FALSE);
/* add the child to the parent */
(void) nvlist_add_nvlist(parent_nvl, "child_nvlist", child_nvl);
/* do stuff .. */
/* free nvlist(s) */
(void) nvlist_free(child_nvl); /* required, but not obvious */
(void) nvlist_free(parent_nvl);
The nvlist_add_boolean() function is deprecated. Instead, use the
nvlist_add_boolean_value() function.
RETURN VALUES
These functions return 0 on success and an error value on failure.
ERRORS
These functions will fail if:
EINVAL There is an invalid argument.
ENOMEM There is insufficient memory.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.69i) |cw(2.81i) lw(2.69i) |lw(2.81i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe
SEE ALSO
libnvpair(3LIB), nvlist_alloc(3NVPAIR), attributes(7)
Oracle Solaris 11.4 23 Sept 2016
nvlist_add_boolean(3NVPAIR)