public static unsafe void Cmd_OpenFile(SystemMessage *msg)
{
//var addr = msg->Arg1;
//var str = (NullTerminatedString*)addr;
//var path = str->ToString();
//var path = ((NullTerminatedString*)msg->Arg1)->ToString();
var path = NullTerminatedString.ToString((byte *)msg->Arg1);
if (TraceFileIO)
{
Console.Write("Open File: ");
Console.WriteLine(path);
}
var file = FindFile(path);
if (file == null)
{
Console.Write("File not found: ");
//Console.WriteLine(length.ToString("X"));
Console.WriteLine(path.Length.ToString("X"));
Console.WriteLine(path);
Console.WriteLine(">>");
MessageManager.Send(new SystemMessage(SysCallTarget.ServiceReturn, FileHandle.Zero));
return;
}
var openFile = new OpenFile()
{
Handle = ++lastHandle,
Path = path,
ProcessId = -1,
Buffer = file.Buffer,
};
OpenFiles.Add(openFile);
if (TraceFileIO)
{
Console.WriteLine("Created Handle: " + ((uint)openFile.Handle).ToString("X"));
}
MessageManager.Send(new SystemMessage(SysCallTarget.ServiceReturn, openFile.Handle));
}
private static OpenFile EnsurePredefinedHandleIsOpen(int processID, FileHandle handle, string path)
{
for (var i = 0; i < OpenFiles.Count; i++)
{
if (OpenFiles[i].ProcessId == processID && OpenFiles[i].Handle == handle)
{
return(OpenFiles[i]);
}
}
var file = FindFile(path);
var openFile = new OpenFile()
{
Handle = handle,
Path = path,
ProcessId = processID,
Buffer = file.Buffer,
};
OpenFiles.Add(openFile);
return(openFile);
}