本文整理汇总了C++中IOMemoryMap::getLength方法的典型用法代码示例。如果您正苦于以下问题：C++ IOMemoryMap::getLength方法的具体用法？C++ IOMemoryMap::getLength怎么用？C++ IOMemoryMap::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IOMemoryMap的用法示例。
在下文中一共展示了IOMemoryMap::getLength方法的3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: IOLog
void SoftU2FUserClient::frameReceivedGated(IOMemoryDescriptor *report) {
IOLog("%s[%p]::%s(%p)\n", getName(), this, __FUNCTION__, report);
IOMemoryMap *reportMap = nullptr;
if (isInactive())
return;
if (report->prepare() != kIOReturnSuccess)
return;
reportMap = report->map();
// Notify userland that we got a report.
if (_notifyRef && reportMap->getLength() == sizeof(U2FHID_FRAME)) {
io_user_reference_t *args = (io_user_reference_t *)reportMap->getAddress();
sendAsyncResult64(*_notifyRef, kIOReturnSuccess, args, sizeof(U2FHID_FRAME) / sizeof(io_user_reference_t));
}
reportMap->release();
report->complete();
}示例2: start
/**
* Start this service.
*/
bool org_virtualbox_VBoxGuest::start(IOService *pProvider)
{
if (!IOService::start(pProvider))
return false;
/* Low level initialization should be performed only once */
if (!ASMAtomicCmpXchgBool(&g_fInstantiated, true, false))
{
IOService::stop(pProvider);
return false;
}
m_pIOPCIDevice = OSDynamicCast(IOPCIDevice, pProvider);
if (m_pIOPCIDevice)
{
if (isVmmDev(m_pIOPCIDevice))
{
/* Enable memory response from VMM device */
m_pIOPCIDevice->setMemoryEnable(true);
m_pIOPCIDevice->setIOEnable(true);
IOMemoryDescriptor *pMem = m_pIOPCIDevice->getDeviceMemoryWithIndex(0);
if (pMem)
{
IOPhysicalAddress IOPortBasePhys = pMem->getPhysicalAddress();
/* Check that returned value is from I/O port range (at least it is 16-bit lenght) */
if((IOPortBasePhys >> 16) == 0)
{
RTIOPORT IOPortBase = (RTIOPORT)IOPortBasePhys;
void *pvMMIOBase = NULL;
uint32_t cbMMIO = 0;
m_pMap = m_pIOPCIDevice->mapDeviceMemoryWithIndex(1);
if (m_pMap)
{
pvMMIOBase = (void *)m_pMap->getVirtualAddress();
cbMMIO = m_pMap->getLength();
}
int rc = VBoxGuestInitDevExt(&g_DevExt,
IOPortBase,
pvMMIOBase,
cbMMIO,
#if ARCH_BITS == 64
VBOXOSTYPE_MacOS_x64,
#else
VBOXOSTYPE_MacOS,
#endif
0);
if (RT_SUCCESS(rc))
{
rc = VbgdDarwinCharDevInit();
if (rc == KMOD_RETURN_SUCCESS)
{
if (setupVmmDevInterrupts(pProvider))
{
/* register the service. */
registerService();
LogRel(("VBoxGuest: IOService started\n"));
return true;
}
LogRel(("VBoxGuest: Failed to set up interrupts\n"));
VbgdDarwinCharDevRemove();
}
else
LogRel(("VBoxGuest: Failed to initialize character device (rc=%d).\n", rc));
VBoxGuestDeleteDevExt(&g_DevExt);
}
else
LogRel(("VBoxGuest: Failed to initialize common code (rc=%d).\n", rc));
if (m_pMap)
{
m_pMap->release();
m_pMap = NULL;
}
}
}
else
LogRel(("VBoxGuest: The device missing is the I/O port range (#0).\n"));
}
else示例3: setOemProperties
bool setOemProperties(IOService *provider)
{
SMBEntryPoint* eps = 0;
IOMemoryDescriptor* dmiMemory = 0;
IOItemCount dmiStructureCount = 0;
UInt8* biosAddress = NULL;
IOMemoryDescriptor * biosMemory = 0;
IOMemoryMap * biosMap = 0;
biosMemory = IOMemoryDescriptor::withPhysicalAddress( 0xf0000,0xfffff-0xf0000+1,kIODirectionOutIn);
if(biosMemory)
{
biosMap = biosMemory->map();
if(biosMap)
{
biosAddress = (UInt8 *) biosMap->getVirtualAddress();
}
}
// Search 0x0f0000 - 0x0fffff for SMBIOS Ptr
if(biosAddress)
for (UInt32 Address = 0; Address < biosMap->getLength(); Address += 0x10) {
if (*(UInt32 *)(biosAddress + Address) == SMBIOS_PTR) {
eps = (SMBEntryPoint *)(biosAddress + Address);
continue;
}
}
if(eps)
if (memcmp(eps->anchor, "_SM_", 4) == 0)
{
UInt8 csum;
csum = checksum8(eps, sizeof(SMBEntryPoint));
/*HWSensorsDebugLog("DMI checksum = 0x%x", csum);
HWSensorsDebugLog("DMI tableLength = %d",
eps->dmi.tableLength);
HWSensorsDebugLog("DMI tableAddress = 0x%x",
(uint32_t) eps->dmi.tableAddress);
HWSensorsDebugLog("DMI structureCount = %d",
eps->dmi.structureCount);
HWSensorsDebugLog("DMI bcdRevision = %x",
eps->dmi.bcdRevision);*/
if (csum == 0 && eps->dmi.tableLength &&
eps->dmi.structureCount)
{
dmiStructureCount = eps->dmi.structureCount;
dmiMemory = IOMemoryDescriptor::withPhysicalAddress(
eps->dmi.tableAddress, eps->dmi.tableLength,
kIODirectionOutIn );
}
/*else
{
HWSensorsDebugLog("no DMI structure found");
}*/
}
if (biosMap)
OSSafeReleaseNULL(biosMap);
if(biosMemory)
OSSafeReleaseNULL(biosMemory);
if ( dmiMemory )
{
if (IOMemoryMap *fDMIMemoryMap = dmiMemory->map()) {
decodeSMBIOSTable(provider, (void *) fDMIMemoryMap->getVirtualAddress(), fDMIMemoryMap->getLength(), dmiStructureCount );
OSSafeReleaseNULL(fDMIMemoryMap);
}
OSSafeReleaseNULL(dmiMemory);
}
return true;
}