internal int ArchRead(Thread current, ref ExceptionRegisters regs, UserPtr userBuf, int len, uint pos, File file)
{
var buf = Globals.AllocateAlignedCompletionBuffer(len);
if (!buf.isValid)
return -ErrorCode.ENOMEM;
var iocp = IOCompletion.CreateReadIOCP(current, userBuf, len, file, buf);
var r = IPCStubs.ReadAsync(current.Parent.helperPid, current.impl._value.thread._value, new Pointer(buf.Location), fd, len, pos);
if (r < 0)
{
iocp.Dispose();
return r;
}
Globals.CompletionQueue.Enqueue(iocp);
current.SaveState(ref regs);
current.AsyncReturn = true;
return 0;
}
internal int ArchWrite(Thread current, ref ExceptionRegisters regs, ref ByteBufferRef buf, int len, uint pos, File file)
{
if (!Globals.CompletionQueueAllocator.Contains(buf))
{
Arch.Console.WriteLine("inode-write: unimplemented");
Arch.ArchDefinition.Panic();
}
var iocp = IOCompletion.CreateWriteIOCP(current, file, buf);
var r = IPCStubs.WriteAsync(current.Parent.helperPid, current.impl._value.thread._value, new Pointer(buf.Location), fd, len, pos);
if (r < 0)
{
iocp.Dispose();
return r;
}
Globals.CompletionQueue.Enqueue(iocp);
current.SaveState(ref regs);
current.AsyncReturn = true;
// Take the buffer
buf = ByteBufferRef.Empty;
return 0;
}