145 lines
3.8 KiB
C++
145 lines
3.8 KiB
C++
/*
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* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/* OSBoolean.cpp created by rsulack on Tue Oct 12 1999 */
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#include <libkern/c++/OSBoolean.h>
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#include <libkern/c++/OSString.h>
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#include <libkern/c++/OSSerialize.h>
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#include <libkern/c++/OSLib.h>
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#define super OSObject
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OSDefineMetaClassAndStructorsWithInit(OSBoolean, OSObject, OSBoolean::initialize())
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OSMetaClassDefineReservedUnused(OSBoolean, 0);
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OSMetaClassDefineReservedUnused(OSBoolean, 1);
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OSMetaClassDefineReservedUnused(OSBoolean, 2);
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OSMetaClassDefineReservedUnused(OSBoolean, 3);
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OSMetaClassDefineReservedUnused(OSBoolean, 4);
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OSMetaClassDefineReservedUnused(OSBoolean, 5);
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OSMetaClassDefineReservedUnused(OSBoolean, 6);
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OSMetaClassDefineReservedUnused(OSBoolean, 7);
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static OSBoolean * gOSBooleanTrue = NULL;
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static OSBoolean * gOSBooleanFalse = NULL;
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OSBoolean * const & kOSBooleanTrue = gOSBooleanTrue;
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OSBoolean * const & kOSBooleanFalse = gOSBooleanFalse;
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void
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OSBoolean::initialize()
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{
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gOSBooleanTrue = new OSBoolean;
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assert(gOSBooleanTrue);
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if (!gOSBooleanTrue->init()) {
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gOSBooleanTrue->OSObject::free();
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assert(false);
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}
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;
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gOSBooleanTrue->value = true;
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gOSBooleanFalse = new OSBoolean;
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assert(gOSBooleanFalse);
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if (!gOSBooleanFalse->init()) {
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gOSBooleanFalse->OSObject::free();
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assert(false);
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}
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;
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gOSBooleanFalse->value = false;
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}
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void
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OSBoolean::free()
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{
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/*
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* An OSBoolean should never have free() called on it, since it is a shared
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* object, with two non-mutable instances: kOSBooleanTrue, kOSBooleanFalse.
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* There will be cases where an incorrect number of releases will cause the
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* free() method to be called, however, which we must catch and ignore here.
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*/
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assert(false);
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}
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void
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OSBoolean::taggedRetain(__unused const void *tag) const
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{
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}
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void
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OSBoolean::taggedRelease(__unused const void *tag, __unused const int when) const
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{
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}
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OSBoolean *
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OSBoolean::withBoolean(bool inValue)
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{
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return (inValue) ? kOSBooleanTrue : kOSBooleanFalse;
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}
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bool
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OSBoolean::isTrue() const
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{
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return value;
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}
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bool
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OSBoolean::isFalse() const
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{
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return !value;
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}
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bool
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OSBoolean::getValue() const
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{
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return value;
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}
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bool
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OSBoolean::isEqualTo(const OSBoolean *boolean) const
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{
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return boolean == this;
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}
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bool
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OSBoolean::isEqualTo(const OSMetaClassBase *obj) const
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{
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OSBoolean * boolean;
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if ((boolean = OSDynamicCast(OSBoolean, obj))) {
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return isEqualTo(boolean);
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} else {
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return false;
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}
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}
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bool
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OSBoolean::serialize(OSSerialize *s) const
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{
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if (s->binary) {
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return s->binarySerialize(this);
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}
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return s->addString(value ? "<true/>" : "<false/>");
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}
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