IOReturn
VectorCommand::Submit()
{
IOReturn status = kIOReturnSuccess;
if( mInflightCount != 0 )
{
status = kIOReturnNotReady;
}
CFIndex count = 0;
if( status == kIOReturnSuccess )
{
count = CFArrayGetCount( mCommandArray );
status = EnsureCapacity( count );
}
if( status == kIOReturnSuccess )
{
// reset vector status
mStatus = kIOReturnSuccess;
for( CFIndex index = 0; (status == kIOReturnSuccess) && (index < count); index++ )
{
IOFireWireLibCommandRef command = (IOFireWireLibCommandRef)CFArrayGetValueAtIndex( mCommandArray, index );
Cmd * cmd = IOFireWireIUnknown::InterfaceMap<Cmd>::GetThis(command);
status = cmd->PrepareForVectorSubmit( &mSubmitBuffer[index] );
}
}
if( status == kIOReturnSuccess )
{
// send the requests to the kernel
// async ref
uint64_t async_ref[kOSAsyncRef64Count];
async_ref[kIOAsyncCalloutFuncIndex] = (uint64_t) 0;
async_ref[kIOAsyncCalloutRefconIndex] = (unsigned long) 0;
// inputs
const uint64_t inputs[2] = { (const uint64_t)&SVectorCompletionHandler,
(const uint64_t)this };
// outputs
uint32_t output_count = 0;
status = IOConnectCallAsyncScalarMethod( mUserClient.GetUserClientConnection(),
mUserClient.MakeSelectorWithObject( kVectorCommandSubmit, mKernCommandRef ),
mUserClient.GetAsyncPort(),
async_ref, kOSAsyncRef64Count,
inputs, 2,
NULL, &output_count);
mInflightCount = count;
// printf( "VectorCommand::Submit - IOConnectCallAsyncStructMethod status = 0x%08lx\n", status );
}
if( status == kIOReturnSuccess )
{
for( CFIndex index = 0; (status == kIOReturnSuccess) && (index < count); index++ )
{
IOFireWireLibCommandRef command = (IOFireWireLibCommandRef)CFArrayGetValueAtIndex( mCommandArray, index );
Cmd * cmd = IOFireWireIUnknown::InterfaceMap<Cmd>::GetThis(command);
cmd->VectorIsExecuting();
}
}
#if 0
if( status == kIOReturnSuccess )
{
// reset vector status
mStatus = kIOReturnSuccess;
for( CFIndex index = 0; index < count; index++ )
{
IOFireWireLibCommandRef command = (IOFireWireLibCommandRef)CFArrayGetValueAtIndex( mCommandArray, index );
mInflightCount++;
(*command)->Submit( command );
// our commands seem to call the completion handler on error
// so pretend all was success
}
}
#endif
// printf( "VectorCommand::Submit - status = 0x%08lx\n", status );
return status;
}
