a792b8435e
==> Provide a much more complete set of setters and getters for different
value types in the prop_array_util(3) and prop_dictionary_util(3)
functions.
==> Overhaul the prop_data(3), prop_number(3), and prop_string(3) APIs
to be easier to use and less awkwardly named, Deprecate the old
awkward names, and produce link-time warnings when they are referenced.
==> Deprecate mutable prop_data(3) and prop_string(3) objects. The old
APIs that support them still exist, but will now produce link-time
warnings when used.
==> When the new prop_string(3) API is used, strings are internally
de-duplicated as a memory footprint optimization.
==> Provide a rich set of bounds-checked gettter functions in and a
corresponding set of convenience setters in the prop_number(3) API.
==> Add a new prop_bool_value(3) function that is equivalent to
prop_bool_true(3), but aligned with the new "value" routines in
prop_data(3), prop_string(3), and prop_number(3).
142 lines
4.2 KiB
Groff
142 lines
4.2 KiB
Groff
.\" $NetBSD: prop_object.3,v 1.10 2020/06/06 21:25:59 thorpej Exp $
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.\"
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.\" Copyright (c) 2006 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Jason R. Thorpe.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd August 21, 2006
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.Dt PROP_OBJECT 3
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.Os
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.Sh NAME
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.Nm prop_object ,
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.Nm prop_object_retain ,
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.Nm prop_object_release ,
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.Nm prop_object_type ,
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.Nm prop_object_equals ,
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.Nm prop_object_iterator_next ,
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.Nm prop_object_iterator_reset ,
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.Nm prop_object_iterator_release
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.Nd general property container object functions
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.Sh LIBRARY
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.Lb libprop
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.Sh SYNOPSIS
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.In prop/proplib.h
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.\"
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.Ft void
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.Fn prop_object_retain "prop_object_t obj"
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.Ft void
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.Fn prop_object_release "prop_object_t obj"
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.\"
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.Ft prop_type_t
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.Fn prop_object_type "prop_object_t obj"
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.Ft bool
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.Fn prop_object_equals "prop_object_t obj1" "prop_object_t obj2"
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.\"
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.Ft prop_object_t
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.Fn prop_object_iterator_next "prop_object_iterator_t iter"
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.Ft void
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.Fn prop_object_iterator_reset "prop_object_iterator_t iter"
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.Ft void
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.Fn prop_object_iterator_release "prop_object_iterator_t iter"
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.Sh DESCRIPTION
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The
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.Nm
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family of functions operate on all property container object types.
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.Bl -tag -width ""
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.It Fn prop_object_retain "prop_object_t obj"
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Increment the reference count on an object.
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.It Fn prop_object_release "prop_object_t obj"
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Decrement the reference count on an object.
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If the last reference is dropped, the object is freed.
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.It Fn prop_object_type "prop_object_t obj"
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Determine the type of the object.
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Objects are one of the following types:
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.Pp
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.Bl -tag -width "PROP_TYPE_DICT_KEYSYM" -compact
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.It Dv PROP_TYPE_BOOL
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Boolean value
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.Pq prop_bool_t
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.It Dv PROP_TYPE_NUMBER
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Number
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.Pq prop_number_t
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.It Dv PROP_TYPE_STRING
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String
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.Pq prop_string_t
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.It Dv PROP_TYPE_DATA
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Opaque data
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.Pq prop_data_t
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.It Dv PROP_TYPE_ARRAY
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Array
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.Pq prop_array_t
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.It Dv PROP_TYPE_DICTIONARY
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Dictionary
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.Pq prop_dictionary_t
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.It Dv PROP_TYPE_DICT_KEYSYM
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Dictionary key symbol
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.Pq prop_dictionary_keysym_t
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.El
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.Pp
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If
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.Fa obj
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is
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.Dv NULL ,
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then
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.Dv PROP_TYPE_UNKNOWN
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is returned.
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.It Fn prop_object_equals "prop_object_t obj1" "prop_object_t obj2"
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Returns
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.Dv true
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if the two objects are of the same type and are equivalent.
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.It Fn prop_object_iterator_next "prop_object_iterator_t iter"
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Return the next object in the collection
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.Pq array or dictionary
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being iterated by the iterator
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.Fa iter .
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If there are no more objects in the collection,
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.Dv NULL
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is returned.
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.It Fn prop_object_iterator_reset "prop_object_iterator_t iter"
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Reset the iterator to the first object in the collection being iterated
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by the iterator
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.Fa iter .
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.It Fn prop_object_iterator_release "prop_object_iterator_t iter"
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Release the iterator
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.Fa iter .
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.El
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.Sh SEE ALSO
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.Xr prop_array 3 ,
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.Xr prop_bool 3 ,
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.Xr prop_data 3 ,
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.Xr prop_dictionary 3 ,
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.Xr prop_number 3 ,
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.Xr prop_string 3 ,
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.Xr proplib 3
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.Sh HISTORY
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The
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.Xr proplib 3
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property container object library first appeared in
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.Nx 4.0 .
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