1 /* 2 * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* IOOffset.m created by rsulack on Wed 17-Sep-1997 */ 29 30 #include <sys/cdefs.h> 31 32 #include <libkern/c++/OSNumber.h> 33 #include <libkern/c++/OSString.h> 34 #include <libkern/c++/OSSerialize.h> 35 #include <libkern/c++/OSLib.h> 36 37 #define sizeMask (~0ULL >> (64 - size)) 38 39 #define super OSObject 40 41 OSDefineMetaClassAndStructors(OSNumber, OSObject) 42 43 OSMetaClassDefineReservedUnused(OSNumber, 0); 44 OSMetaClassDefineReservedUnused(OSNumber, 1); 45 OSMetaClassDefineReservedUnused(OSNumber, 2); 46 OSMetaClassDefineReservedUnused(OSNumber, 3); 47 OSMetaClassDefineReservedUnused(OSNumber, 4); 48 OSMetaClassDefineReservedUnused(OSNumber, 5); 49 OSMetaClassDefineReservedUnused(OSNumber, 6); 50 OSMetaClassDefineReservedUnused(OSNumber, 7); 51 52 bool OSNumber::init(unsigned long long inValue, unsigned int newNumberOfBits) 53 { 54 if (!super::init()) 55 return false; 56 if (newNumberOfBits > 64) 57 return false; 58 59 size = newNumberOfBits; 60 value = (inValue & sizeMask); 61 62 return true; 63 } 64 65 bool OSNumber::init(const char *newValue, unsigned int newNumberOfBits) 66 { 67 return init((unsigned long long)strtoul(newValue, NULL, 0), newNumberOfBits); 68 } 69 70 void OSNumber::free() { super::free(); } 71 72 OSNumber *OSNumber::withNumber(unsigned long long value, 73 unsigned int newNumberOfBits) 74 { 75 OSNumber *me = new OSNumber; 76 77 if (me && !me->init(value, newNumberOfBits)) { 78 me->release(); 79 return 0; 80 } 81 82 return me; 83 } 84 85 OSNumber *OSNumber::withNumber(const char *value, unsigned int newNumberOfBits) 86 { 87 OSNumber *me = new OSNumber; 88 89 if (me && !me->init(value, newNumberOfBits)) { 90 me->release(); 91 return 0; 92 } 93 94 return me; 95 } 96 97 unsigned int OSNumber::numberOfBits() const { return size; } 98 99 unsigned int OSNumber::numberOfBytes() const { return (size + 7) / 8; } 100 101 102 unsigned char OSNumber::unsigned8BitValue() const 103 { 104 return (unsigned char) value; 105 } 106 107 unsigned short OSNumber::unsigned16BitValue() const 108 { 109 return (unsigned short) value; 110 } 111 112 unsigned int OSNumber::unsigned32BitValue() const 113 { 114 return (unsigned int) value; 115 } 116 117 unsigned long long OSNumber::unsigned64BitValue() const 118 { 119 return value; 120 } 121 122 void OSNumber::addValue(signed long long inValue) 123 { 124 value = ((value + inValue) & sizeMask); 125 } 126 127 void OSNumber::setValue(unsigned long long inValue) 128 { 129 value = (inValue & sizeMask); 130 } 131 132 bool OSNumber::isEqualTo(const OSNumber *integer) const 133 { 134 return((value == integer->value)); 135 } 136 137 bool OSNumber::isEqualTo(const OSMetaClassBase *obj) const 138 { 139 OSNumber * offset; 140 if ((offset = OSDynamicCast(OSNumber, obj))) 141 return isEqualTo(offset); 142 else 143 return false; 144 } 145 146 bool OSNumber::serialize(OSSerialize *s) const 147 { 148 char temp[32]; 149 150 if (s->previouslySerialized(this)) return true; 151 152 snprintf(temp, sizeof(temp), "integer size=\"%d\"", size); 153 if (!s->addXMLStartTag(this, temp)) return false; 154 155 //XXX sprintf(temp, "0x%qx", value); 156 if ((value >> 32)) { 157 snprintf(temp, sizeof(temp), "0x%lx%08lx", (unsigned long)(value >> 32), 158 (unsigned long)(value & 0xFFFFFFFF)); 159 } else { 160 snprintf(temp, sizeof(temp), "0x%lx", (unsigned long)value); 161 } 162 if (!s->addString(temp)) return false; 163 164 return s->addXMLEndTag("integer"); 165 } 166