public Builder ReissueReadOnReconnect(bool reissueReadOnReconnect)
{
SAssert.IsTrue(_settings.ReconnectOnIdle, () =>
new ArgumentException("ReissueReadOnReconnect requires ReconnectOnIdle"));
_settings.ReissueCommandsOnReconnect = reissueReadOnReconnect;
return(this);
}
public Builder ReissuePipelinedCallsOnReconnect(bool reissuePipeline)
{
SAssert.IsTrue(_settings.ReconnectOnIdle, () => new ArgumentException(
"ReissuePipelinedCallsOnReconnect requires ReconnectOnIdle"));
_settings.ReissuePipelinedCallsOnReconnect = reissuePipeline;
return(this);
}
public ResponseType ReadTypeChar()
{
var b = _stream.ReadByte();
SAssert.IsTrue(Enum.IsDefined(typeof(ResponseType), b),
() => new ResponseException("Invalid response data, expected a response type character"));
return((ResponseType)b);
}
public Builder MaxReconnectRetries(int maxRetries)
{
SAssert.ArgumentPositive(() => maxRetries);
SAssert.IsTrue(_settings.ReconnectOnIdle, () =>
new ArgumentException("MaxReconnectRetries requires ReconnectOnIdle"));
_settings.MaxReconnectRetries = maxRetries;
return(this);
}
private void readCrLf()
{
var cr = (byte)_stream.ReadByte();
var lf = (byte)_stream.ReadByte();
SAssert.IsTrue(cr == '\r',
() => new ResponseException("Expecting a CR, got instead: " + (char)cr));
SAssert.IsTrue(lf == '\n',
() => new ResponseException("Expecting a LF, got instead: " + (char)lf));
}
public void WriteBulkFrom(Stream source, int count)
{
SAssert.ArgumentNotNull(() => source);
SAssert.ArgumentNonNegative(() => count);
using (var limiter = new LimitingStream(source, count)) {
limiter.CopyTo(_stream);
writeCrLf();
SAssert.IsTrue(limiter.BytesLeft == 0,
() => new InvalidOperationException("Stream does not contains enough data."));
}
}
// TODO: Respect culture? Revert to using int.Parse?
public int ReadNumberLine()
{
bool negate = false;
int num = 0;
int b;
// read the first byte which can be a minus '-' sign
b = _stream.ReadByte();
if (b == '-')
{
negate = true;
}
else
{
num = b - '0';
}
// read the rest of the numbers
while ((b = _stream.ReadByte()) != -1)
{
if (b == '\r')
{
break;
}
// shifts the number by one digit, adding the current
// digit to the end e.g. "99" + "7" = 99 * 10 + 7 = "997"
num = (num * 10) + b - '0';
SAssert.IsTrue(b >= '0' && b <= '9',
() => new ResponseException("Expecting a digit, found instead: " + (char)b));
}
// consume leftover LF
b = _stream.ReadByte();
SAssert.IsTrue(b == '\n',
() => new ResponseException("Expecting LF, found instead: " + (char)b));
return(negate ? -num : num);
}
public string ReadStatusLine()
{
var sb = new StringBuilder();
int b;
while ((b = _stream.ReadByte()) != -1)
{
if (b == '\r')
{
break;
}
sb.Append((char)b);
}
// consume leftover LF
b = _stream.ReadByte();
SAssert.IsTrue(b == '\n',
() => new ResponseException("Expecting LF, found instead: " + (char)b));
return(sb.ToString());
}
// same implementation as ReadNumberLine() but expecting 64-bit values
public long ReadNumberLine64()
{
bool negate = false;
long num = 0;
int b;
b = _stream.ReadByte();
if (b == '-')
{
negate = true;
}
else
{
num = b - '0';
}
while ((b = _stream.ReadByte()) != -1)
{
if (b == '\r')
{
break;
}
num = (num * 10) + b - '0';
SAssert.IsTrue(b >= '0' && b <= '9',
() => new ResponseException("Expected a digit, found instead: " + (char)b));
}
b = _stream.ReadByte();
SAssert.IsTrue(b == '\n',
() => new ResponseException("Expecting LF, found instead: " + (char)b));
return(negate ? -num : num);
}
public void ReadBulk(byte[] buffer, int offset, int bulkLength)
{
SAssert.ArgumentNotNull(() => buffer);
SAssert.ArgumentNonNegative(() => bulkLength);
// special case for empty reads
if (offset == 0 && bulkLength == 0)
{
return;
}
SAssert.ArgumentBetween(() => offset, 0, buffer.Length);
SAssert.ArgumentSatisfy(() => offset, o => o + bulkLength <= buffer.Length,
"Offset plus bulkLength is larger than the supplied buffer.");
// read data from the stream, expect as much data as there's bulkLength
var bytesRead = _stream.Read(buffer, 0, bulkLength);
SAssert.IsTrue(bytesRead == bulkLength,
() => new ResponseException("Expected " + bulkLength.ToString() +
" bytes of bulk data, but only " + bytesRead.ToString() + " bytes are read."));
readCrLf();
}