491 lines
15 KiB
C
491 lines
15 KiB
C
/* $NetBSD: prop_object_impl.h,v 1.31 2012/07/27 09:10:59 pooka 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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#ifndef _PROPLIB_PROP_OBJECT_IMPL_H_
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#define _PROPLIB_PROP_OBJECT_IMPL_H_
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#if defined(_KERNEL) || defined(_STANDALONE)
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#include <lib/libkern/libkern.h>
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#else
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#include <inttypes.h>
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#endif
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#include "prop_stack.h"
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struct _prop_object_externalize_context {
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char * poec_buf; /* string buffer */
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size_t poec_capacity; /* capacity of buffer */
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size_t poec_len; /* current length of string */
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unsigned int poec_depth; /* nesting depth */
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};
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bool _prop_object_externalize_start_tag(
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struct _prop_object_externalize_context *,
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const char *);
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bool _prop_object_externalize_end_tag(
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struct _prop_object_externalize_context *,
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const char *);
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bool _prop_object_externalize_empty_tag(
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struct _prop_object_externalize_context *,
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const char *);
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bool _prop_object_externalize_append_cstring(
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struct _prop_object_externalize_context *,
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const char *);
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bool _prop_object_externalize_append_encoded_cstring(
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struct _prop_object_externalize_context *,
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const char *);
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bool _prop_object_externalize_append_char(
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struct _prop_object_externalize_context *,
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unsigned char);
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bool _prop_object_externalize_header(
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struct _prop_object_externalize_context *);
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bool _prop_object_externalize_footer(
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struct _prop_object_externalize_context *);
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struct _prop_object_externalize_context *
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_prop_object_externalize_context_alloc(void);
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void _prop_object_externalize_context_free(
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struct _prop_object_externalize_context *);
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typedef enum {
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_PROP_TAG_TYPE_START, /* e.g. <dict> */
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_PROP_TAG_TYPE_END, /* e.g. </dict> */
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_PROP_TAG_TYPE_EITHER
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} _prop_tag_type_t;
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struct _prop_object_internalize_context {
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const char *poic_xml;
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const char *poic_cp;
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const char *poic_tag_start;
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const char *poic_tagname;
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size_t poic_tagname_len;
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const char *poic_tagattr;
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size_t poic_tagattr_len;
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const char *poic_tagattrval;
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size_t poic_tagattrval_len;
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bool poic_is_empty_element;
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_prop_tag_type_t poic_tag_type;
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};
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typedef enum {
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_PROP_OBJECT_FREE_DONE,
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_PROP_OBJECT_FREE_RECURSE,
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_PROP_OBJECT_FREE_FAILED
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} _prop_object_free_rv_t;
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typedef enum {
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_PROP_OBJECT_EQUALS_FALSE,
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_PROP_OBJECT_EQUALS_TRUE,
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_PROP_OBJECT_EQUALS_RECURSE
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} _prop_object_equals_rv_t;
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#define _PROP_EOF(c) ((c) == '\0')
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#define _PROP_ISSPACE(c) \
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((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) == '\r' || \
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_PROP_EOF(c))
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#define _PROP_TAG_MATCH(ctx, t) \
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_prop_object_internalize_match((ctx)->poic_tagname, \
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(ctx)->poic_tagname_len, \
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(t), strlen(t))
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#define _PROP_TAGATTR_MATCH(ctx, a) \
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_prop_object_internalize_match((ctx)->poic_tagattr, \
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(ctx)->poic_tagattr_len, \
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(a), strlen(a))
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#define _PROP_TAGATTRVAL_MATCH(ctx, a) \
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_prop_object_internalize_match((ctx)->poic_tagattrval, \
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(ctx)->poic_tagattrval_len,\
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(a), strlen(a))
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bool _prop_object_internalize_find_tag(
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struct _prop_object_internalize_context *,
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const char *, _prop_tag_type_t);
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bool _prop_object_internalize_match(const char *, size_t,
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const char *, size_t);
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prop_object_t _prop_object_internalize_by_tag(
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struct _prop_object_internalize_context *);
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bool _prop_object_internalize_decode_string(
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struct _prop_object_internalize_context *,
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char *, size_t, size_t *, const char **);
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prop_object_t _prop_generic_internalize(const char *, const char *);
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struct _prop_object_internalize_context *
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_prop_object_internalize_context_alloc(const char *);
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void _prop_object_internalize_context_free(
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struct _prop_object_internalize_context *);
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#if !defined(_KERNEL) && !defined(_STANDALONE)
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bool _prop_object_externalize_write_file(const char *,
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const char *, size_t);
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struct _prop_object_internalize_mapped_file {
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char * poimf_xml;
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size_t poimf_mapsize;
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};
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struct _prop_object_internalize_mapped_file *
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_prop_object_internalize_map_file(const char *);
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void _prop_object_internalize_unmap_file(
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struct _prop_object_internalize_mapped_file *);
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#endif /* !_KERNEL && !_STANDALONE */
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typedef bool (*prop_object_internalizer_t)(prop_stack_t, prop_object_t *,
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struct _prop_object_internalize_context *);
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typedef bool (*prop_object_internalizer_continue_t)(prop_stack_t,
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prop_object_t *,
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struct _prop_object_internalize_context *,
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void *, prop_object_t);
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/* These are here because they're required by shared code. */
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bool _prop_array_internalize(prop_stack_t, prop_object_t *,
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struct _prop_object_internalize_context *);
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bool _prop_bool_internalize(prop_stack_t, prop_object_t *,
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struct _prop_object_internalize_context *);
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bool _prop_data_internalize(prop_stack_t, prop_object_t *,
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struct _prop_object_internalize_context *);
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bool _prop_dictionary_internalize(prop_stack_t, prop_object_t *,
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struct _prop_object_internalize_context *);
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bool _prop_number_internalize(prop_stack_t, prop_object_t *,
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struct _prop_object_internalize_context *);
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bool _prop_string_internalize(prop_stack_t, prop_object_t *,
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struct _prop_object_internalize_context *);
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struct _prop_object_type {
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/* type indicator */
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uint32_t pot_type;
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/* func to free object */
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_prop_object_free_rv_t
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(*pot_free)(prop_stack_t, prop_object_t *);
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/*
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* func to free the child returned by pot_free with stack == NULL.
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*
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* Must be implemented if pot_free can return anything other than
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* _PROP_OBJECT_FREE_DONE.
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*/
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void (*pot_emergency_free)(prop_object_t);
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/* func to externalize object */
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bool (*pot_extern)(struct _prop_object_externalize_context *,
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void *);
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/* func to test quality */
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_prop_object_equals_rv_t
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(*pot_equals)(prop_object_t, prop_object_t,
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void **, void **,
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prop_object_t *, prop_object_t *);
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/*
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* func to finish equality iteration.
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*
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* Must be implemented if pot_equals can return
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* _PROP_OBJECT_EQUALS_RECURSE
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*/
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void (*pot_equals_finish)(prop_object_t, prop_object_t);
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void (*pot_lock)(void);
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void (*pot_unlock)(void);
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};
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struct _prop_object {
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const struct _prop_object_type *po_type;/* type descriptor */
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uint32_t po_refcnt; /* reference count */
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};
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void _prop_object_init(struct _prop_object *,
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const struct _prop_object_type *);
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void _prop_object_fini(struct _prop_object *);
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struct _prop_object_iterator {
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prop_object_t (*pi_next_object)(void *);
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void (*pi_reset)(void *);
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prop_object_t pi_obj;
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uint32_t pi_version;
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};
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#define _PROP_NOTHREAD_ONCE_DECL(x) static bool x = false;
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#define _PROP_NOTHREAD_ONCE_RUN(x,f) \
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do { \
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if ((x) == false) { \
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f(); \
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x = true; \
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} \
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} while (/*CONSTCOND*/0)
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#if defined(_KERNEL)
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/*
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* proplib in the kernel...
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*/
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/pool.h>
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#include <sys/systm.h>
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#include <sys/rwlock.h>
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#include <sys/once.h>
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#define _PROP_ASSERT(x) KASSERT(x)
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#define _PROP_MALLOC(s, t) malloc((s), (t), M_WAITOK)
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#define _PROP_CALLOC(s, t) malloc((s), (t), M_WAITOK | M_ZERO)
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#define _PROP_REALLOC(v, s, t) realloc((v), (s), (t), M_WAITOK)
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#define _PROP_FREE(v, t) free((v), (t))
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#define _PROP_POOL_GET(p) pool_get(&(p), PR_WAITOK)
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#define _PROP_POOL_PUT(p, v) pool_put(&(p), (v))
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struct prop_pool_init {
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struct pool *pp;
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size_t size;
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const char *wchan;
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};
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#define _PROP_POOL_INIT(pp, size, wchan) \
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struct pool pp; \
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static const struct prop_pool_init _link_ ## pp[1] = { \
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{ &pp, size, wchan } \
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}; \
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__link_set_add_rodata(prop_linkpools, _link_ ## pp);
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#define _PROP_MALLOC_DEFINE(t, s, l) \
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MALLOC_DEFINE(t, s, l);
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#define _PROP_MUTEX_DECL_STATIC(x) static kmutex_t x;
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#define _PROP_MUTEX_INIT(x) mutex_init(&(x),MUTEX_DEFAULT,IPL_NONE)
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#define _PROP_MUTEX_LOCK(x) mutex_enter(&(x))
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#define _PROP_MUTEX_UNLOCK(x) mutex_exit(&(x))
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#define _PROP_RWLOCK_DECL(x) krwlock_t x ;
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#define _PROP_RWLOCK_INIT(x) rw_init(&(x))
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#define _PROP_RWLOCK_RDLOCK(x) rw_enter(&(x), RW_READER)
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#define _PROP_RWLOCK_WRLOCK(x) rw_enter(&(x), RW_WRITER)
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#define _PROP_RWLOCK_UNLOCK(x) rw_exit(&(x))
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#define _PROP_RWLOCK_DESTROY(x) rw_destroy(&(x))
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#define _PROP_ONCE_DECL(x) static ONCE_DECL(x);
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#define _PROP_ONCE_RUN(x,f) RUN_ONCE(&(x), f)
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#include <sys/atomic.h>
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#define _PROP_ATOMIC_INC32(x) atomic_inc_32(x)
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#define _PROP_ATOMIC_DEC32(x) atomic_dec_32(x)
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#define _PROP_ATOMIC_INC32_NV(x, v) v = atomic_inc_32_nv(x)
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#define _PROP_ATOMIC_DEC32_NV(x, v) v = atomic_dec_32_nv(x)
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#elif defined(_STANDALONE)
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/*
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* proplib in a standalone environment...
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*/
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#include <lib/libsa/stand.h>
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void * _prop_standalone_calloc(size_t);
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void * _prop_standalone_realloc(void *, size_t);
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#define _PROP_ASSERT(x) /* nothing */
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#define _PROP_MALLOC(s, t) alloc((s))
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#define _PROP_CALLOC(s, t) _prop_standalone_calloc((s))
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#define _PROP_REALLOC(v, s, t) _prop_standalone_realloc((v), (s))
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#define _PROP_FREE(v, t) dealloc((v), 0) /* XXX */
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#define _PROP_POOL_GET(p) alloc((p))
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#define _PROP_POOL_PUT(p, v) dealloc((v), (p))
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#define _PROP_POOL_INIT(p, s, d) static const size_t p = s;
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#define _PROP_MALLOC_DEFINE(t, s, l) /* nothing */
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#define _PROP_MUTEX_DECL_STATIC(x) /* nothing */
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#define _PROP_MUTEX_INIT(x) /* nothing */
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#define _PROP_MUTEX_LOCK(x) /* nothing */
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#define _PROP_MUTEX_UNLOCK(x) /* nothing */
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#define _PROP_RWLOCK_DECL(x) /* nothing */
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#define _PROP_RWLOCK_INIT(x) /* nothing */
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#define _PROP_RWLOCK_RDLOCK(x) /* nothing */
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#define _PROP_RWLOCK_WRLOCK(x) /* nothing */
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#define _PROP_RWLOCK_UNLOCK(x) /* nothing */
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#define _PROP_RWLOCK_DESTROY(x) /* nothing */
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#define _PROP_ONCE_DECL(x) _PROP_NOTHREAD_ONCE_DECL(x)
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#define _PROP_ONCE_RUN(x,f) _PROP_NOTHREAD_ONCE_RUN(x,f)
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#define _PROP_ATOMIC_INC32(x) ++*(x)
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#define _PROP_ATOMIC_DEC32(x) --*(x)
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#define _PROP_ATOMIC_INC32_NV(x, v) v = ++*(x)
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#define _PROP_ATOMIC_DEC32_NV(x, v) v = --*(x)
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#else
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/*
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* proplib in user space...
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*/
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stddef.h>
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#define _PROP_ASSERT(x) /*LINTED*/assert(x)
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#define _PROP_MALLOC(s, t) malloc((s))
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#define _PROP_CALLOC(s, t) calloc(1, (s))
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#define _PROP_REALLOC(v, s, t) realloc((v), (s))
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#define _PROP_FREE(v, t) free((v))
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#define _PROP_POOL_GET(p) malloc((p))
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#define _PROP_POOL_PUT(p, v) free((v))
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#define _PROP_POOL_INIT(p, s, d) static const size_t p = s;
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#define _PROP_MALLOC_DEFINE(t, s, l) /* nothing */
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#if defined(__NetBSD__) && defined(_LIBPROP)
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/*
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* Use the same mechanism as libc; we get pthread mutexes for threaded
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* programs and do-nothing stubs for non-threaded programs.
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*/
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#include <sys/atomic.h>
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#include "reentrant.h"
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#define _PROP_MUTEX_DECL_STATIC(x) static mutex_t x;
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#define _PROP_MUTEX_INIT(x) mutex_init(&(x), NULL)
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#define _PROP_MUTEX_LOCK(x) mutex_lock(&(x))
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#define _PROP_MUTEX_UNLOCK(x) mutex_unlock(&(x))
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#define _PROP_RWLOCK_DECL(x) rwlock_t x ;
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#define _PROP_RWLOCK_INIT(x) rwlock_init(&(x), NULL)
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#define _PROP_RWLOCK_RDLOCK(x) rwlock_rdlock(&(x))
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#define _PROP_RWLOCK_WRLOCK(x) rwlock_wrlock(&(x))
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#define _PROP_RWLOCK_UNLOCK(x) rwlock_unlock(&(x))
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#define _PROP_RWLOCK_DESTROY(x) rwlock_destroy(&(x))
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#define _PROP_ONCE_DECL(x) \
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static pthread_once_t x = PTHREAD_ONCE_INIT;
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#define _PROP_ONCE_RUN(x,f) thr_once(&(x), (void(*)(void))f);
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#define _PROP_ATOMIC_INC32(x) atomic_inc_32(x)
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#define _PROP_ATOMIC_DEC32(x) atomic_dec_32(x)
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#define _PROP_ATOMIC_INC32_NV(x, v) v = atomic_inc_32_nv(x)
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#define _PROP_ATOMIC_DEC32_NV(x, v) v = atomic_dec_32_nv(x)
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#elif defined(HAVE_NBTOOL_CONFIG_H) || defined(__minix)
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/*
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* None of NetBSD's build tools are multi-threaded.
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*/
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#define _PROP_MUTEX_DECL_STATIC(x) /* nothing */
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#define _PROP_MUTEX_INIT(x) /* nothing */
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#define _PROP_MUTEX_LOCK(x) /* nothing */
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#define _PROP_MUTEX_UNLOCK(x) /* nothing */
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#define _PROP_RWLOCK_DECL(x) /* nothing */
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#define _PROP_RWLOCK_INIT(x) /* nothing */
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#define _PROP_RWLOCK_RDLOCK(x) /* nothing */
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#define _PROP_RWLOCK_WRLOCK(x) /* nothing */
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#define _PROP_RWLOCK_UNLOCK(x) /* nothing */
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#define _PROP_RWLOCK_DESTROY(x) /* nothing */
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#define _PROP_ONCE_DECL(x) _PROP_NOTHREAD_ONCE_DECL(x)
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#define _PROP_ONCE_RUN(x,f) _PROP_NOTHREAD_ONCE_RUN(x,f)
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#define _PROP_ATOMIC_INC32(x) ++*(x)
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#define _PROP_ATOMIC_DEC32(x) --*(x)
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#define _PROP_ATOMIC_INC32_NV(x, v) v = ++*(x)
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#define _PROP_ATOMIC_DEC32_NV(x, v) v = --*(x)
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#else
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/*
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* Use pthread mutexes everywhere else.
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*/
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#include <pthread.h>
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#define _PROP_MUTEX_DECL_STATIC(x) static pthread_mutex_t x;
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#define _PROP_MUTEX_INIT(x) pthread_mutex_init(&(x), NULL)
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#define _PROP_MUTEX_LOCK(x) pthread_mutex_lock(&(x))
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#define _PROP_MUTEX_UNLOCK(x) pthread_mutex_unlock(&(x))
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#define _PROP_RWLOCK_DECL(x) pthread_rwlock_t x ;
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#define _PROP_RWLOCK_INIT(x) pthread_rwlock_init(&(x), NULL)
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|
#define _PROP_RWLOCK_RDLOCK(x) pthread_rwlock_rdlock(&(x))
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|
#define _PROP_RWLOCK_WRLOCK(x) pthread_rwlock_wrlock(&(x))
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|
#define _PROP_RWLOCK_UNLOCK(x) pthread_rwlock_unlock(&(x))
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|
#define _PROP_RWLOCK_DESTROY(x) pthread_rwlock_destroy(&(x))
|
|
|
|
#define _PROP_ONCE_DECL(x) \
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|
static pthread_once_t x = PTHREAD_ONCE_INIT;
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|
#define _PROP_ONCE_RUN(x,f) pthread_once(&(x),(void(*)(void))f)
|
|
|
|
#define _PROP_NEED_REFCNT_MTX
|
|
|
|
#define _PROP_ATOMIC_INC32(x) \
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|
do { \
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|
pthread_mutex_lock(&_prop_refcnt_mtx); \
|
|
(*(x))++; \
|
|
pthread_mutex_unlock(&_prop_refcnt_mtx); \
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
#define _PROP_ATOMIC_DEC32(x) \
|
|
do { \
|
|
pthread_mutex_lock(&_prop_refcnt_mtx); \
|
|
(*(x))--; \
|
|
pthread_mutex_unlock(&_prop_refcnt_mtx); \
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
#define _PROP_ATOMIC_INC32_NV(x, v) \
|
|
do { \
|
|
pthread_mutex_lock(&_prop_refcnt_mtx); \
|
|
v = ++(*(x)); \
|
|
pthread_mutex_unlock(&_prop_refcnt_mtx); \
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
#define _PROP_ATOMIC_DEC32_NV(x, v) \
|
|
do { \
|
|
pthread_mutex_lock(&_prop_refcnt_mtx); \
|
|
v = --(*(x)); \
|
|
pthread_mutex_unlock(&_prop_refcnt_mtx); \
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
#endif
|
|
#endif /* _KERNEL */
|
|
|
|
/*
|
|
* Language features.
|
|
*/
|
|
#if defined(__NetBSD__) || defined(__minix)
|
|
#include <sys/cdefs.h>
|
|
#define _PROP_ARG_UNUSED __unused
|
|
#else
|
|
#define _PROP_ARG_UNUSED /* delete */
|
|
#endif /* __NetBSD__ */
|
|
|
|
#endif /* _PROPLIB_PROP_OBJECT_IMPL_H_ */
|