ioCheck

ioCheck.hpp

map<IOReturn,string> ioMakeErrorMap()
{
  map<IOReturn,string> map;
  map[ kIOReturnSuccess ] = "kIOReturnSuccess KERN_SUCCESS // OK";
  map[ kIOReturnError ] = " // general error";
  map[ kIOReturnNoMemory ] = " // can't allocate memory ";
  map[ kIOReturnNoResources ] = "resource shortage ";
  map[ kIOReturnIPCError ] = "error during IPC ";
  map[ kIOReturnNoDevice ] = "no such device ";
  map[ kIOReturnNotPrivileged ] = "privilege violation ";
  map[ kIOReturnBadArgument ] = "invalid argument ";
  map[ kIOReturnLockedRead ] = "device read locked ";
  map[ kIOReturnLockedWrite ] = "device write locked ";
  map[ kIOReturnExclusiveAccess ] = "exclusive access and device already open ";
  map[ kIOReturnBadMessageID ] = "sent/received messages had different msg_id";
  map[ kIOReturnUnsupported ] = "unsupported function ";
  map[ kIOReturnVMError ] = "misc. VM failure ";
  map[ kIOReturnInternalError ] = "internal error ";
  map[ kIOReturnIOError ] = "General I/O error ";
  //map[ kIOReturn???Error      iokit_common_err(0x2cb) // ??? 
  map[ kIOReturnCannotLock ] = "can't acquire lock";
  map[ kIOReturnNotOpen ] = "device not open ";
  map[ kIOReturnNotReadable ] = "read not supported ";
  map[ kIOReturnNotWritable ] = "write not supported ";
  map[ kIOReturnNotAligned  ] = "alignment error ";
  map[ kIOReturnBadMedia    ] = "Media Error ";
  map[ kIOReturnStillOpen   ] = "device(s) still open ";
  map[ kIOReturnRLDError    ] = "rld failure ";
  map[ kIOReturnDMAError    ] = "DMA failure ";
  map[ kIOReturnBusy        ] = "Device Busy ";
  map[ kIOReturnTimeout     ] = "I/O Timeout ";
  map[ kIOReturnOffline     ] = "device offline ";
  map[ kIOReturnNotReady    ] = "not ready ";
  map[ kIOReturnNotAttached ] = "device not attached ";
  map[ kIOReturnNoChannels  ] = "no DMA channels left";
  map[ kIOReturnNoSpace     ] = "no space for data ";
  //map[ kIOReturn???Error  ] = "??? "
  map[ kIOReturnPortExists  ] = "port already exists";
  map[ kIOReturnCannotWire  ] = "can't wire down physical memory";
  map[ kIOReturnNoInterrupt ] = "no interrupt attached";
  map[ kIOReturnNoFrames ] = "no DMA frames enqueued";
  map[ kIOReturnMessageTooLarge ] = "oversized msg received on interrupt port";
  map[ kIOReturnNotPermitted ] = "not permitted";
  map[ kIOReturnNoPower ] = "no power to device";
  map[ kIOReturnNoMedia ] = "media not present";
  map[ kIOReturnUnformattedMedia ] = "media not formatted";
  map[ kIOReturnUnsupportedMode  ] = "no such mode";
  map[ kIOReturnUnderrun ] = "data underrun";
  map[ kIOReturnOverrun ] = "data overrun";
  map[ kIOReturnDeviceError ] = "the device is not working properly!";
  map[ kIOReturnNoCompletion ] = "a completion routine is required";
  map[ kIOReturnAborted ] = "operation aborted";
  map[ kIOReturnNoBandwidth ] = "bus bandwidth would be exceeded";
  map[ kIOReturnNotResponding	] = "device not responding";
  map[ kIOReturnIsoTooOld	] = "isochronous I/O request for distant past!";
  map[ kIOReturnIsoTooNew	] = "isochronous I/O request for distant future";
  map[ kIOReturnNotFound ] = "data was not found";
  map[ kIOReturnInvalid ] = "should never be seen";
  return map;
}

bool ioCheck( IOReturn res, const char* msg )
{
  static map<IOReturn,string> ioErrors = ioMakeErrorMap();
  if( res != kIOReturnSuccess )
  {
    printf( "IOError: %s %s\n", msg, ioErrors[res].c_str() );
  }
  return res == kIOReturnSuccess;
}