public LuaArgs ReadUntilAsync(byte[] buffer, int offset, int count, byte target, LuaContinuation continuation)
{
if (m_mode == LuaFileOpenMode.Read)
{
return(BufferInputUntilAsync(target, delegate(LuaArgs results) {
count = Math.Min(count, results.GetInt(0));
count = DequeueBytes(buffer, offset, count);
return continuation.Invoke(new LuaArgs(count));
}));
}
return(continuation.Invoke(new LuaArgs(0)));
}
public LuaArgs ReadByteAsync(LuaContinuation continuation)
{
if (m_mode == LuaFileOpenMode.Read)
{
return(BufferInputAsync(1, delegate(LuaArgs args)
{
var b = DequeueByte();
return continuation.Invoke(new LuaArgs(b));
}));
}
return(continuation.Invoke(new LuaArgs(-1)));
}
public LuaArgs ReadAsync(byte[] buffer, int offset, int count, LuaContinuation continuation)
{
if (m_mode == LuaFileOpenMode.Read)
{
return(BufferInputAsync(count, delegate(LuaArgs args)
{
count = DequeueBytes(buffer, offset, count);
return continuation.Invoke(new LuaArgs(count));
}));
}
return(continuation.Invoke(new LuaArgs(0)));
}
private LuaArgs WriteOneAsync(LuaValue value, LuaContinuation continuation)
{
if (value.IsNumber())
{
// Write a number
var str = value.ToString();
if (m_contentType == LuaFileContentType.Binary)
{
var bytes = Encoding.UTF8.GetBytes(str);
if (m_stream is LuaFunctionStream)
{
return(((LuaFunctionStream)m_stream).WriteAsync(bytes, 0, bytes.Length, continuation));
}
else
{
m_stream.Write(bytes, 0, bytes.Length);
return(continuation.Invoke(LuaArgs.Empty));
}
}
else
{
m_writer.Write(str);
return(continuation.Invoke(LuaArgs.Empty));
}
}
else
{
// Write a string
if (m_contentType == LuaFileContentType.Binary)
{
var bytes = value.GetByteString();
if (m_stream is LuaFunctionStream)
{
return(((LuaFunctionStream)m_stream).WriteAsync(bytes, 0, bytes.Length, continuation));
}
else
{
m_stream.Write(bytes, 0, bytes.Length);
return(continuation.Invoke(LuaArgs.Empty));
}
}
else
{
var str = value.GetString();
m_writer.Write(str.Replace("\n", Environment.NewLine));
return(continuation.Invoke(LuaArgs.Empty));
}
}
}
public LuaArgs write(LuaArgs args)
{
try
{
CheckOpen();
if (m_openMode == LuaFileOpenMode.Write)
{
// Write some stuff
int i = 0;
LuaContinuation continuation = null;
continuation = delegate {
if (!args.IsNil(i))
{
return(WriteOneAsync(args[i++], continuation));
}
else
{
return(new LuaArgs(this));
}
};
return(continuation.Invoke(LuaArgs.Empty));
}
return(new LuaArgs(this));
}
catch (IOException e)
{
return(new LuaArgs(LuaValue.Nil, e.Message));
}
}
public LuaArgs WriteByteAsync(byte value, LuaContinuation continuation)
{
if (m_mode == LuaFileOpenMode.Write)
{
QueueByte(value);
return(EmitOutputAsync(continuation));
}
return(continuation.Invoke(LuaArgs.Empty));
}
public LuaArgs WriteAsync(byte[] buffer, int offset, int count, LuaContinuation continuation)
{
if (m_mode == LuaFileOpenMode.Write)
{
QueueBytes(buffer, offset, count);
return(EmitOutputAsync(continuation));
}
return(continuation.Invoke(LuaArgs.Empty));
}
private LuaArgs EmitOutputAsync(LuaContinuation continuation)
{
if (m_function != null && m_buffer.Count > 0)
{
var bytes = new byte[m_buffer.Count];
DequeueBytes(bytes, 0, bytes.Length);
return(m_function.CallAsync(new LuaArgs(bytes), continuation));
}
return(continuation.Invoke(LuaArgs.Empty));
}
private LuaArgs BufferInputAsync(int bytesNeeded, LuaContinuation continuation)
{
LuaContinuation onReturn = null;
onReturn = delegate(LuaArgs results)
{
if (results.IsString(0))
{
var bytes = results.GetByteString(0);
if (bytes.Length > 0)
{
// Read some bytes
QueueBytes(bytes, 0, bytes.Length);
}
else
{
// EOF
m_function = null;
}
}
else
{
// EOF
m_function = null;
}
if (m_function != null && m_buffer.Count < bytesNeeded)
{
return(m_function.CallAsync(new LuaArgs(bytesNeeded - m_buffer.Count), onReturn));
}
else
{
return(continuation.Invoke(LuaArgs.Empty));
}
};
if (m_function != null && m_buffer.Count < bytesNeeded)
{
return(m_function.CallAsync(new LuaArgs(m_buffer.Count - bytesNeeded), onReturn));
}
else
{
return(continuation.Invoke(LuaArgs.Empty));
}
}
public LuaArgs read(LuaArgs args)
{
try
{
CheckOpen();
if (m_openMode == LuaFileOpenMode.Read)
{
var results = new LuaValue[Math.Max(args.Length, 1)];
int i = -1;
LuaContinuation continuation = null;
continuation = delegate(LuaArgs args2)
{
if (i >= 0)
{
results[i] = args2[0];
if (results[i].IsNil())
{
return(new LuaArgs(results).Select(0, i + 1));
}
}
if (i < results.Length - 1)
{
i = i + 1;
var fmt = (i == 0 && args.IsNil(i)) ? new LuaValue("l") : args[i];
return(ReadOneAsync(fmt, continuation));
}
else
{
return(new LuaArgs(results));
}
};
return(continuation.Invoke(LuaArgs.Empty));
}
return(LuaArgs.Empty);
}
catch (IOException e)
{
throw new LuaError(e.Message);
}
}
private LuaArgs ReadOneAsync(LuaValue fmt, LuaContinuation continuation)
{
if (fmt.IsNumber())
{
// Number
var count = fmt.GetInt();
if (m_contentType == LuaFileContentType.Binary)
{
// Read some bytes
var bytes = new byte[count];
if (m_stream is LuaFunctionStream)
{
return(((LuaFunctionStream)m_stream).ReadAsync(
bytes, 0, count,
delegate(LuaArgs args) {
int bytesRead = args.GetInt(0);
if (bytesRead > 0)
{
if (bytesRead != count)
{
Array.Resize(ref bytes, bytesRead);
}
return continuation.Invoke(new LuaArgs(bytes));
}
else
{
return continuation.Invoke(LuaArgs.Nil);
}
}
));
}
else
{
int bytesRead = m_stream.Read(bytes, 0, count);
if (bytesRead > 0)
{
if (bytesRead != count)
{
Array.Resize(ref bytes, bytesRead);
}
return(continuation.Invoke(new LuaArgs(bytes)));
}
else
{
return(continuation.Invoke(LuaArgs.Nil));
}
}
}
else
{
// Read some chars
var chars = new char[count];
int charsRead = m_reader.Read(chars, 0, count);
if (charsRead > 0)
{
var str = new string(chars, 0, charsRead);
return(continuation.Invoke(new LuaArgs(str)));
}
else
{
return(continuation.Invoke(LuaArgs.Nil));
}
}
}
else
{
// Format string
var fmtStr = fmt.GetString();
if (fmtStr == "*n" || fmtStr == "n")
{
// Read a number
if (m_contentType == LuaFileContentType.Binary)
{
throw new NotImplementedException();
}
else
{
var num = m_reader.ReadLine();
long lresult;
double dresult;
if (long.TryParse(num, out lresult))
{
return(continuation.Invoke(new LuaArgs(lresult)));
}
else if (double.TryParse(num, out dresult))
{
return(continuation.Invoke(new LuaArgs(dresult)));
}
else
{
return(continuation.Invoke(LuaArgs.Nil));
}
}
}
else if (fmtStr == "*a" || fmtStr == "a")
{
// Read to end
if (m_contentType == LuaFileContentType.Binary)
{
byte[] buffer = new byte[4096];
var memoryStream = new MemoryStream();
if (m_stream is LuaFunctionStream)
{
var luaStream = (LuaFunctionStream)m_stream;
LuaContinuation onReturn = null;
onReturn = delegate(LuaArgs args)
{
var bytesRead = args.GetInt(0);
if (bytesRead > 0)
{
memoryStream.Write(buffer, 0, bytesRead);
return(luaStream.ReadAsync(buffer, 0, buffer.Length, onReturn));
}
else
{
var bytes = memoryStream.ToArray();
return(continuation.Invoke(new LuaArgs(bytes)));
}
};
return(luaStream.ReadAsync(buffer, 0, buffer.Length, onReturn));
}
else
{
int bytesRead;
while ((bytesRead = m_stream.Read(buffer, 0, buffer.Length)) > 0)
{
memoryStream.Write(buffer, 0, bytesRead);
}
var bytes = memoryStream.ToArray();
return(continuation.Invoke(new LuaArgs(bytes)));
}
}
else
{
var str = m_reader.ReadToEnd();
return(continuation.Invoke(new LuaArgs(str)));
}
}
else if (fmtStr == "*l" || fmtStr == "l")
{
// Read a line
if (m_contentType == LuaFileContentType.Binary)
{
var memoryStream = new MemoryStream();
if (m_stream is LuaFunctionStream)
{
var luaStream = (LuaFunctionStream)m_stream;
byte[] buffer = new byte[4096];
LuaContinuation onReturn = null;
onReturn = delegate(LuaArgs args)
{
var bytesRead = args.GetInt(0);
if (bytesRead < buffer.Length || buffer[bytesRead - 1] == '\n')
{
// Found newline or EOF
memoryStream.Write(buffer, 0, bytesRead);
if (memoryStream.Length == 0)
{
return(continuation.Invoke(LuaArgs.Nil));
}
else
{
// Trim newline
var results = memoryStream.GetBuffer();
var len = memoryStream.Length;
if (len > 0 && results[len - 1] == '\n')
{
len--;
}
if (len > 0 && results[len - 1] == '\r')
{
len--;
}
// Return bytes
var bytes = new byte[len];
Array.Copy(results, bytes, len);
return(continuation.Invoke(new LuaArgs(bytes)));
}
}
else
{
// Get some more bytes
memoryStream.Write(buffer, 0, bytesRead);
return(luaStream.ReadUntilAsync(buffer, 0, buffer.Length, (byte)'\n', onReturn));
}
};
return(luaStream.ReadUntilAsync(buffer, 0, buffer.Length, (byte)'\n', onReturn));
}
else
{
var b = m_stream.ReadByte();
if (b < 0)
{
return(continuation.Invoke(LuaArgs.Nil));
}
else
{
while (true)
{
if (b < 0 || b == '\n')
{
break;
}
else if (b != '\r')
{
memoryStream.WriteByte((byte)b);
}
b = m_stream.ReadByte();
}
var bytes = memoryStream.ToArray();
return(continuation.Invoke(new LuaArgs(bytes)));
}
}
}
else
{
var str = m_reader.ReadLine();
if (str != null)
{
return(continuation.Invoke(new LuaArgs(str)));
}
else
{
return(continuation.Invoke(LuaArgs.Nil));
}
}
}
else if (fmt == "*L" || fmt == "L")
{
// Read a line including the line ending
if (m_contentType == LuaFileContentType.Binary)
{
var memoryStream = new MemoryStream();
if (m_stream is LuaFunctionStream)
{
var luaStream = (LuaFunctionStream)m_stream;
byte[] buffer = new byte[4096];
LuaContinuation onReturn = null;
onReturn = delegate(LuaArgs args)
{
var bytesRead = args.GetInt(0);
if (bytesRead < buffer.Length || buffer[bytesRead - 1] == '\n')
{
// Found newline or EOFF
memoryStream.Write(buffer, 0, bytesRead);
if (memoryStream.Length == 0)
{
return(continuation.Invoke(LuaArgs.Nil));
}
else
{
// Return bytess
var bytes = memoryStream.ToArray();
return(continuation.Invoke(new LuaArgs(bytes)));
}
}
else
{
// Get some more bytes
memoryStream.Write(buffer, 0, bytesRead);
return(luaStream.ReadUntilAsync(buffer, 0, buffer.Length, (byte)'\n', onReturn));
}
};
return(luaStream.ReadUntilAsync(buffer, 0, buffer.Length, (byte)'\n', onReturn));
}
else
{
var b = m_stream.ReadByte();
if (b < 0)
{
return(continuation.Invoke(LuaArgs.Nil));
}
else
{
while (true)
{
if (b < 0)
{
break;
}
else if (b == '\n')
{
memoryStream.WriteByte((byte)b);
break;
}
else
{
memoryStream.WriteByte((byte)b);
}
b = m_stream.ReadByte();
}
var bytes = memoryStream.ToArray();
return(continuation.Invoke(new LuaArgs(bytes)));
}
}
}
else
{
var str = m_reader.ReadLine();
if (str != null)
{
str = str + '\n';
return(continuation.Invoke(new LuaArgs(str)));
}
else
{
return(continuation.Invoke(LuaArgs.Nil));
}
}
}
else
{
throw new LuaError("Invalid format: " + fmt);
}
}
}
private LuaArgs BufferInputUntilAsync(byte target, LuaContinuation continuation)
{
int i = 0;
foreach (var b in m_buffer)
{
if (b == target)
{
return(continuation.Invoke(new LuaArgs(i + 1)));
}
else
{
++i;
}
}
LuaContinuation onReturn = null;
onReturn = delegate(LuaArgs results)
{
if (results.IsString(0))
{
var bytes = results.GetByteString(0);
if (bytes.Length > 0)
{
// Read some bytes
QueueBytes(bytes, 0, bytes.Length);
for (int j = 0; j < bytes.Length; ++j)
{
if (bytes[j] == target)
{
return(continuation.Invoke(new LuaArgs(i + j + 1)));
}
}
i += bytes.Length;
}
else
{
// EOF
m_function = null;
}
}
else
{
// EOF
m_function = null;
}
if (m_function != null)
{
return(m_function.CallAsync(new LuaArgs(1), onReturn));
}
else
{
return(continuation.Invoke(new LuaArgs(m_buffer.Count)));
}
};
if (m_function != null)
{
return(m_function.CallAsync(new LuaArgs(1), onReturn));
}
else
{
return(continuation.Invoke(new LuaArgs(m_buffer.Count)));
}
}