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 __BEGIN_DECLS 33 extern unsigned long strtoul(const char *, char **, int); 34 __END_DECLS 35 36 #include <libkern/c++/OSNumber.h> 37 #include <libkern/c++/OSString.h> 38 #include <libkern/c++/OSSerialize.h> 39 #include <libkern/c++/OSLib.h> 40 41 #define sizeMask (~0ULL >> (64 - size)) 42 43 #define super OSObject 44 45 OSDefineMetaClassAndStructors(OSNumber, OSObject) 46 47 OSMetaClassDefineReservedUnused(OSNumber, 0); 48 OSMetaClassDefineReservedUnused(OSNumber, 1); 49 OSMetaClassDefineReservedUnused(OSNumber, 2); 50 OSMetaClassDefineReservedUnused(OSNumber, 3); 51 OSMetaClassDefineReservedUnused(OSNumber, 4); 52 OSMetaClassDefineReservedUnused(OSNumber, 5); 53 OSMetaClassDefineReservedUnused(OSNumber, 6); 54 OSMetaClassDefineReservedUnused(OSNumber, 7); 55 56 bool OSNumber::init(unsigned long long inValue, unsigned int numberOfBits) 57 { 58 if (!super::init()) 59 return false; 60 61 size = numberOfBits; 62 value = (inValue & sizeMask); 63 64 return true; 65 } 66 67 bool OSNumber::init(const char *value, unsigned int numberOfBits) 68 { 69 return init((unsigned long long)strtoul(value, NULL, 0), numberOfBits); 70 } 71 72 void OSNumber::free() { super::free(); } 73 74 OSNumber *OSNumber::withNumber(unsigned long long value, 75 unsigned int numberOfBits) 76 { 77 OSNumber *me = new OSNumber; 78 79 if (me && !me->init(value, numberOfBits)) { 80 me->release(); 81 return 0; 82 } 83 84 return me; 85 } 86 87 OSNumber *OSNumber::withNumber(const char *value, unsigned int numberOfBits) 88 { 89 OSNumber *me = new OSNumber; 90 91 if (me && !me->init(value, numberOfBits)) { 92 me->release(); 93 return 0; 94 } 95 96 return me; 97 } 98 99 unsigned int OSNumber::numberOfBits() const { return size; } 100 101 unsigned int OSNumber::numberOfBytes() const { return (size + 7) / 8; } 102 103 104 unsigned char OSNumber::unsigned8BitValue() const 105 { 106 return (unsigned char) value; 107 } 108 109 unsigned short OSNumber::unsigned16BitValue() const 110 { 111 return (unsigned short) value; 112 } 113 114 unsigned int OSNumber::unsigned32BitValue() const 115 { 116 return (unsigned int) value; 117 } 118 119 unsigned long long OSNumber::unsigned64BitValue() const 120 { 121 return value; 122 } 123 124 void OSNumber::addValue(signed long long inValue) 125 { 126 value = ((value + inValue) & sizeMask); 127 } 128 129 void OSNumber::setValue(unsigned long long inValue) 130 { 131 value = (inValue & sizeMask); 132 } 133 134 bool OSNumber::isEqualTo(const OSNumber *integer) const 135 { 136 return((value == integer->value)); 137 } 138 139 bool OSNumber::isEqualTo(const OSMetaClassBase *obj) const 140 { 141 OSNumber * offset; 142 if ((offset = OSDynamicCast(OSNumber, obj))) 143 return isEqualTo(offset); 144 else 145 return false; 146 } 147 148 bool OSNumber::serialize(OSSerialize *s) const 149 { 150 char temp[32]; 151 152 if (s->previouslySerialized(this)) return true; 153 154 snprintf(temp, sizeof(temp), "integer size=\"%d\"", size); 155 if (!s->addXMLStartTag(this, temp)) return false; 156 157 //XXX sprintf(temp, "0x%qx", value); 158 if ((value >> 32)) { 159 snprintf(temp, sizeof(temp), "0x%lx%08lx", (unsigned long)(value >> 32), 160 (unsigned long)(value & 0xFFFFFFFF)); 161 } else { 162 snprintf(temp, sizeof(temp), "0x%lx", (unsigned long)value); 163 } 164 if (!s->addString(temp)) return false; 165 166 return s->addXMLEndTag("integer"); 167 } 168