public bool TrySend(byte[] buffer, int offset, int count, out ZmqErrorCode error)
{
if ((uint)offset > (uint)buffer.Length || (uint)count > (uint)(buffer.Length - offset))
{
ZmqUtil.ThrowArgOutOfRange();
}
if (count == 0)
{
error = ZmqErrorCode.None;
return(false);
}
fixed(byte *pBuf = &buffer[0])
{
while (true)
{
var length = ZmqNative.send(_handle, pBuf + offset, (IntPtr)count, 0);
if (length >= 0)
{
error = ZmqErrorCode.None;
return(true);
}
error = ZmqNative.errno();
if (error == ZmqErrorCode.EINTR)
{
continue;
}
return(false);
}
}
}
public static string ToErrorMessage(this ZmqErrorCode errorCode)
{
if (errorCode == ZmqErrorCode.None)
{
return(string.Empty);
}
var errorStrBuf = ZmqNative.strerror((int)errorCode);
if (errorStrBuf == null)
{
return(string.Empty);
}
return($"{Marshal.PtrToStringAnsi((IntPtr)errorStrBuf)} (code {(int)errorCode})");
}
public bool TryReadMessage(ref byte[] buffer, out int messageLength, out ZmqErrorCode error)
{
ZmqMessage message;
ZmqMessage.Init(&message);
try
{
while ((messageLength = ZmqNative.msg_recv(&message, _handle, 0)) == -1)
{
error = ZmqNative.errno();
if (error == ZmqErrorCode.EINTR)
{
continue;
}
messageLength = 0;
return(false);
}
if (messageLength <= 0)
{
error = ZmqErrorCode.None;
return(false);
}
if (buffer == null || buffer.Length < messageLength)
buffer = new byte[messageLength];
fixed(byte *pBuf = &buffer[0])
{
Buffer.MemoryCopy(ZmqNative.msg_data(&message), pBuf, buffer.Length, messageLength);
}
error = ZmqErrorCode.None;
return(true);
}
finally
{
ZmqMessage.Close(&message);
}
}
