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C++ OSData::getLength方法代码示例

本文整理汇总了C++中OSData::getLength方法的典型用法代码示例。如果您正苦于以下问题：C++ OSData::getLength方法的具体用法？C++ OSData::getLength怎么用？C++ OSData::getLength使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类OSData的用法示例。


在下文中一共展示了OSData::getLength方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: initIfnetParams

bool IOEthernetInterface::initIfnetParams(struct ifnet_init_params *params)
{
	OSData *uniqueID;
	//get the default values
    super::initIfnetParams( params );
		
    uniqueID = OSDynamicCast(OSData, getProvider()->getProperty(kIOMACAddress));
    if ( (uniqueID == 0) || (uniqueID->getLength() != ETHER_ADDR_LEN) )
    {
        DLOG("%s: kIOMACAddress property access error (len %d)\n",
             getName(), uniqueID ? uniqueID->getLength() : 0);
        return false;
    }
	
	// fill in ethernet specific values
	params->uniqueid = uniqueID->getBytesNoCopy();
	params->uniqueid_len = uniqueID->getLength();
	params->family = APPLE_IF_FAM_ETHERNET;
	params->demux = ether_demux;
	params->add_proto = ether_add_proto;
	params->del_proto = ether_del_proto;
	params->framer = ether_frameout;
	params->check_multi = ether_check_multi;
	params->broadcast_addr = ether_broadcast_addr;
	params->broadcast_len = sizeof(ether_broadcast_addr);
    return true;
}
开发者ID:wzw19890321，项目名称:IONetworkingFamily，代码行数:27，代码来源:IOEthernetInterface.cpp

示例2: controllerDidOpen

bool IOEthernetInterface::controllerDidOpen(IONetworkController * ctr)
{
    bool                 ret = false;
    OSData *             addrData;
    IOEthernetAddress *  addr;

    do {
        // Call the controllerDidOpen() in superclass first.

        if ( (ctr == 0) || (super::controllerDidOpen(ctr) == false) )
             break;

        // If the controller supports some form of multicast filtering,
        // then set the ifnet IFF_MULTICAST flag.

        if ( GET_SUPPORTED_FILTERS(gIONetworkFilterGroup) &
             (kIOPacketFilterMulticast | kIOPacketFilterMulticastAll) )
        {
            setFlags(IFF_MULTICAST);
        }

        // Advertise Wake on Magic Packet feature if supported.
        
        if ( _supportedWakeFilters & kIOEthernetWakeOnMagicPacket )
        {
            IOPMrootDomain * root = getPMRootDomain();
            if ( root ) root->publishFeature( kWOMPFeatureKey,
                             kIOPMSupportedOnAC | kIOPMSupportedOnUPS, 
                             (uint32_t *)&_publishedFeatureID);
        }

        // Get the controller's MAC/Ethernet address.

        addrData = OSDynamicCast(OSData, ctr->getProperty(kIOMACAddress));
        if ( (addrData == 0) || (addrData->getLength() != ETHER_ADDR_LEN) )
        {
            DLOG("%s: kIOMACAddress property access error (len %d)\n",
                 getName(), addrData ? addrData->getLength() : 0);
            break;
        }

        addr = (IOEthernetAddress *) addrData->getBytesNoCopy();

        DLOG("%s: Ethernet address %02x:%02x:%02x:%02x:%02x:%02x\n",
              ctr->getName(),
              addr->bytes[0],
              addr->bytes[1],
              addr->bytes[2],
              addr->bytes[3],
              addr->bytes[4],
              addr->bytes[5]);

        ret = true;
    }
    while (0);

    return ret;
}
开发者ID:wzw19890321，项目名称:IONetworkingFamily，代码行数:58，代码来源:IOEthernetInterface.cpp

示例3: registerNVRAMController

void IOPlatformExpert::registerNVRAMController(IONVRAMController * caller)
{
    OSData *          data;
    IORegistryEntry * entry;
    OSString *        string = 0;
    uuid_string_t     uuid;

    entry = IORegistryEntry::fromPath( "/efi/platform", gIODTPlane );
    if ( entry )
    {
        data = OSDynamicCast( OSData, entry->getProperty( "system-id" ) );
        if ( data && data->getLength( ) == 16 )
        {
            SHA1_CTX     context;
            uint8_t      digest[ SHA_DIGEST_LENGTH ];
            const uuid_t space = { 0x2A, 0x06, 0x19, 0x90, 0xD3, 0x8D, 0x44, 0x40, 0xA1, 0x39, 0xC4, 0x97, 0x70, 0x37, 0x65, 0xAC };

            SHA1Init( &context );
            SHA1Update( &context, space, sizeof( space ) );
            SHA1Update( &context, data->getBytesNoCopy( ), data->getLength( ) );
            SHA1Final( digest, &context );

            digest[ 6 ] = ( digest[ 6 ] & 0x0F ) | 0x50;
            digest[ 8 ] = ( digest[ 8 ] & 0x3F ) | 0x80;

            uuid_unparse( digest, uuid );
            string = OSString::withCString( uuid );
        }

        entry->release( );
    }

    if ( string == 0 )
    {
        entry = IORegistryEntry::fromPath( "/options", gIODTPlane );
        if ( entry )
        {
            data = OSDynamicCast( OSData, entry->getProperty( "platform-uuid" ) );
            if ( data && data->getLength( ) == sizeof( uuid_t ) )
            {
                uuid_unparse( ( uint8_t * ) data->getBytesNoCopy( ), uuid );
                string = OSString::withCString( uuid );
            }

            entry->release( );
        }
    }

    if ( string )
    {
        getProvider( )->setProperty( kIOPlatformUUIDKey, string );
        publishResource( kIOPlatformUUIDKey, string );

        string->release( );
    }

    publishResource("IONVRAM");
}
开发者ID:Dracophoenix1，项目名称:xnu-1，代码行数:58，代码来源:IOPlatformExpert.cpp

示例4: PEReadNVRAMProperty

/* pass in a NULL value if you just want to figure out the len */
boolean_t PEReadNVRAMProperty(const char *symbol, void *value,
                              unsigned int *len)
{
    OSObject  *obj;
    OSData *data;
    unsigned int vlen;

    if (!symbol || !len)
        goto err;

    if (init_gIOOptionsEntry() < 0)
        goto err;

    vlen = *len;
    *len = 0;

    obj = gIOOptionsEntry->getProperty(symbol);
    if (!obj)
        goto err;

    /* convert to data */
    data = OSDynamicCast(OSData, obj);
    if (!data) 
        goto err;

    *len  = data->getLength();
    vlen  = min(vlen, *len);
    if (value && vlen)
        memcpy((void *) value, data->getBytesNoCopy(), vlen);

    return TRUE;

err:
    return FALSE;
}
开发者ID:Dracophoenix1，项目名称:xnu-1，代码行数:36，代码来源:IOPlatformExpert.cpp

示例5: init

bool NullEthernet::init(OSDictionary *properties)
{
    DebugLog("init() ===>\n");

    if (!super::init(properties))
    {
        DebugLog("super::init failed\n");
        return false;
    }

    m_pProvider = NULL;
    m_netif = NULL;
    m_isEnabled = false;
    unitNumber = 0;

    // load default MAC address (can be overridden in DSDT)
    static unsigned char rgDefault[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 };
    bcopy(rgDefault, m_rgMacAddr, kIOEthernetAddressSize);
    if (properties)
    {
        OSData* pData = OSDynamicCast(OSData, properties->getObject("MAC-address"));
        if (pData && pData->getLength() == kIOEthernetAddressSize)
            bcopy(pData->getBytesNoCopy(), m_rgMacAddr, kIOEthernetAddressSize);
    }

    DebugLog("init() <===>\n");
    return true;
}
开发者ID:queer1，项目名称:OS-X-Null-Ethernet，代码行数:28，代码来源:NullEthernet.cpp

示例6: OSDynamicCast

UInt32 PCIDeviceStub_XHCIMux::getUInt32Property(const char* name)
{
    UInt32 result = 0;
    OSData* data = OSDynamicCast(OSData, getProperty(name));
    if (data && data->getLength() == 4)
        result = *static_cast<const UInt32*>(data->getBytesNoCopy());
    return result;
}
开发者ID:OuYuBin，项目名称:OS-X-Fake-PCI-ID，代码行数:8，代码来源:FakePCIID_XHCIMux.cpp

示例7: getBoolProperty

bool PCIDeviceStub_XHCIMux::getBoolProperty(const char* name, bool defValue)
{
    bool result = defValue;
    OSData* data = OSDynamicCast(OSData, getProperty(name));
    if (data && data->getLength() == 1)
        result = *static_cast<const UInt8*>(data->getBytesNoCopy());
    return result;
}
开发者ID:OuYuBin，项目名称:OS-X-Fake-PCI-ID，代码行数:8，代码来源:FakePCIID_XHCIMux.cpp

示例8: sizeof

IOMapper * IOMapper::copyMapperForDeviceWithIndex(IOService * device, unsigned int index)
{
    OSData *data;
    OSObject * obj;
    IOMapper * mapper = NULL;
    OSDictionary * matching;
    
    obj = device->copyProperty("iommu-parent");
    if (!obj) return (NULL);

    if ((mapper = OSDynamicCast(IOMapper, obj))) goto found;

    if ((data = OSDynamicCast(OSData, obj)))
    {
        if (index >= data->getLength() / sizeof(UInt32)) goto done;
        
        data = OSData::withBytesNoCopy((UInt32 *)data->getBytesNoCopy() + index, sizeof(UInt32));
        if (!data) goto done;

        matching = IOService::propertyMatching(gIOMapperIDKey, data);
        data->release();
    }
    else
        matching = IOService::propertyMatching(gIOMapperIDKey, obj);

    if (matching)
    {
        mapper = OSDynamicCast(IOMapper, IOService::waitForMatchingService(matching));
        matching->release();
    }

done:
    if (obj) obj->release();
found:
    if (mapper)
    {
        if (!mapper->fAllocName)
        {
            char name[MACH_ZONE_NAME_MAX_LEN];
            char kmodname[KMOD_MAX_NAME];
            vm_tag_t tag;
            uint32_t kmodid;

            tag = IOMemoryTag(kernel_map);
            if (!(kmodid = vm_tag_get_kext(tag, &kmodname[0], KMOD_MAX_NAME)))
            {
                snprintf(kmodname, sizeof(kmodname), "%d", tag);
            }
            snprintf(name, sizeof(name), "%s.DMA.%s", kmodname, device->getName());
            mapper->fAllocName = kern_allocation_name_allocate(name, 16);
        }
    }

    return (mapper);
}
开发者ID:aglab2，项目名称:darwin-xnu，代码行数:55，代码来源:IOMapper.cpp

示例9: newReportDescriptor

//----------------------------------------------------------------------------------------------------
// IOHIDUserDevice::newReportDescriptor
//----------------------------------------------------------------------------------------------------
IOReturn IOHIDUserDevice::newReportDescriptor(IOMemoryDescriptor ** descriptor ) const
{
    OSData *                    data;
    
    data = OSDynamicCast(OSData, _properties->getObject(kIOHIDReportDescriptorKey));
    if ( !data )
        return kIOReturnError;
            
	*descriptor = IOBufferMemoryDescriptor::withBytes(data->getBytesNoCopy(), data->getLength(), kIODirectionNone);

	return kIOReturnSuccess;
}
开发者ID:alfintatorkace，项目名称:osx-10.9-opensource，代码行数:15，代码来源:IOHIDUserDevice.cpp

示例10: initMACfromProvider

bool NullEthernet::initMACfromProvider()
{
    bool result = false;
    OSData* pData = OSDynamicCast(OSData, m_pProvider->getProperty("RM,MAC-address"));
    if (pData && pData->getLength() == kIOEthernetAddressSize)
    {
        bcopy(pData->getBytesNoCopy(), m_rgMacAddr, kIOEthernetAddressSize);
        AlwaysLog("Using MAC address from provider: %02x:%02x:%02x:%02x:%02x:%02x\n", m_rgMacAddr[0], m_rgMacAddr[1], m_rgMacAddr[2], m_rgMacAddr[3], m_rgMacAddr[4], m_rgMacAddr[5]);
        result = true;
    }
    return result;
}
开发者ID:queer1，项目名称:OS-X-Null-Ethernet，代码行数:12，代码来源:NullEthernet.cpp

示例11: return

static bool GetUInt32( IORegistryEntry * regEntry, const OSSymbol * name,
			UInt32 * value )
{
    OSData	*data;

    if( (data = OSDynamicCast( OSData, regEntry->getProperty( name )))
      && (4 == data->getLength())) {
        *value = *((UInt32 *) data->getBytesNoCopy());
        return( true );
    } else
        return( false );
}
开发者ID:Apple-FOSS-Mirror，项目名称:xnu，代码行数:12，代码来源:IODeviceTreeSupport.cpp

示例12: readNVRAM

OSReturn NoSleepExtension::readNVRAM(UInt8 *value)
{
#ifdef DEBUG
    IOLog("%s[%p]::%s(%p)\n", getName(), this, __FUNCTION__, value);
#endif
    
    OSReturn ret = kOSReturnError;
    IORegistryEntry *entry = IORegistryEntry::fromPath( "/options", gIODTPlane );
    if ( entry )
    {
        OSObject *rawValue = entry->getProperty(IORegistrySleepSuppressionMode);

        if(rawValue != NULL) {
#ifdef DEBUG
            IOLog("%s: rawValueClassName: %s\n", getName(), rawValue->getMetaClass()->getClassName());
#endif
            OSData *data = OSDynamicCast(OSData, rawValue);
            if(data->getLength() == 1) {
                *value = ((UInt8 *)data->getBytesNoCopy())[0];
                
                ret = kOSReturnSuccess;
#ifdef DEBUG
                IOLog("%s: reading nvram, value: 0x%02x\n", getName(), (*value));
#endif
            }
#ifdef DEBUG
            else {
                IOLog("%s: read error: data->Len %s 1\n", getName(),
                      (data->getLength() == 1)?"==":"!=");
            }
#endif

        }
        entry->release();
    }
    
    return ret;
}
开发者ID:Agentjj，项目名称:macosx-nosleep-extension，代码行数:38，代码来源:NoSleepExtension.cpp

示例13: initMACfromACPI

bool NullEthernet::initMACfromACPI()
{
    bool result = false;
    OSObject *ret = NULL;
    IOACPIPlatformDevice* pACPI = OSDynamicCast(IOACPIPlatformDevice, m_pProvider);
    if (NULL != pACPI && kIOReturnSuccess == pACPI->evaluateObject("MAC", &ret) && NULL != ret)
    {
        // get MAC address from DSDT if provided...
        OSData* pData = OSDynamicCast(OSData, ret);
        if (pData && pData->getLength() == kIOEthernetAddressSize)
        {
            bcopy(pData->getBytesNoCopy(), m_rgMacAddr, kIOEthernetAddressSize);
            AlwaysLog("Using MAC address from DSDT: %02x:%02x:%02x:%02x:%02x:%02x\n", m_rgMacAddr[0], m_rgMacAddr[1], m_rgMacAddr[2], m_rgMacAddr[3], m_rgMacAddr[4], m_rgMacAddr[5]);
            result = true;
        }
        ret->release();
    }
    return result;
}
开发者ID:queer1，项目名称:OS-X-Null-Ethernet，代码行数:19，代码来源:NullEthernet.cpp

示例14: IODTGetDefault

int IODTGetDefault(const char *key, void *infoAddr, unsigned int infoSize )
{
    IORegistryEntry		*defaults;
    OSData			*defaultObj;
    unsigned int		defaultSize;

    defaults = IORegistryEntry::fromPath( "/defaults", gIODTPlane );
    if ( defaults == 0 ) return -1;

    defaultObj = OSDynamicCast( OSData, defaults->getProperty(key) );
    if ( defaultObj == 0 ) return -1;

    defaultSize = defaultObj->getLength();
    if ( defaultSize > infoSize) return -1;

    memcpy( infoAddr, defaultObj->getBytesNoCopy(), defaultSize );

    return 0;
}
开发者ID:Apple-FOSS-Mirror，项目名称:xnu，代码行数:19，代码来源:IODeviceTreeSupport.cpp

示例15: newReportDescriptor

IOReturn org_litio_OzoneStrikeBattle::newReportDescriptor(IOMemoryDescriptor** descriptor) const {
    // TODO: Define new device descriptor struct for the keyboard.
    // Assigning current descriptor.
    IOLog("OzoneStrike::%s[%p] - Setting HID report descriptor.\n", getName(), this);
    OSData *reportDescriptor = OSData::withBytes(Ozone::HIDReportDescriptor, sizeof(Ozone::HIDReportDescriptor));
    OSData *reportDescriptorNew = OSDynamicCast(OSData, getProperty("ReportDescriptorOverride"));
    
    if (reportDescriptor == NULL) {
        IOLog("OzoneStrike::%s[%p] - reportDescriptor OSData not set.\n", getName(), this);
        return kIOReturnNoResources;
    }
    
    printBytes(reportDescriptorNew);
    printBytes(reportDescriptor);
    
    IOLog("OzoneStrike::%s[%p] - reportDescriptor OSData set (size: %d, data: %s).\n", getName(), this, reportDescriptor->getLength(), reportDescriptor->getBytesNoCopy());

    //OSData *reportDescriptor = OSDynamicCast(OSData, Ozone::HIDReportDescriptor);
    IOBufferMemoryDescriptor *bufferDescriptor = IOBufferMemoryDescriptor::withBytes(reportDescriptor->getBytesNoCopy(),
                                                                               reportDescriptor->getLength(),
                                                                               kIODirectionOutIn);
    //IOBufferMemoryDescriptor *bufferDescriptor = IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task,
     //                                                                                        0,
     //                                                                                        sizeof(Ozone::HIDReportDescriptor));
/*
    if (bufferDescriptor == NULL) {
        return kIOReturnNoResources;
    }

    bufferDescriptor->writeBytes(0, Ozone::HIDReportDescriptor,sizeof(Ozone::HIDReportDescriptor));
*/
    if (bufferDescriptor) {
        *descriptor = bufferDescriptor;
        return kIOReturnSuccess;
    } else {
        bufferDescriptor->release();
        *descriptor = NULL;
        return kIOReturnNoMemory;
    }

    //return IOUSBHostHIDDevice::newReportDescriptor(descriptor);
}
开发者ID:gloob，项目名称:Ozone-Strike-OSX-Driver，代码行数:42，代码来源:OzoneStrikeBattle.cpp


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