public void Listen(int backlog)
{
int r = listen(Handle, backlog);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
}
//assigns a name to the socket
public void Bind(byte[] localEnd)
{
int r = bind(Handle, localEnd, (uint)localEnd.Length);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
}
public UnixSocket()
{
//TODO: don't hard-code PF_UNIX and SOCK_STREAM or SocketType.Stream
//AddressFamily family, SocketType type, ProtocolType proto
int r = socket(AF_UNIX, SOCK_STREAM, 0);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
Handle = r;
_ownsHandle = true;
}
public int Write(byte *bufP, int count)
{
int r = 0;
do
{
r = (int)write(Handle, bufP, (SizeT)count);
}while (r < 0 && UnixError.ShouldRetry);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
return(r);
}
//TODO: consider memory management
public void Connect(byte[] remote_end)
{
int r = 0;
do
{
r = connect(Handle, remote_end, (uint)remote_end.Length);
} while (r < 0 && UnixError.ShouldRetry);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
Connected = true;
}
public void Connect()
{
int r = 0;
do
{
r = connect(Handle, null, 0);
} while (r < 0 && UnixError.ShouldRetry);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
Connected = true;
}
//TODO: consider memory management
public void Close()
{
int r = 0;
do
{
r = close(Handle);
} while (r < 0 && UnixError.ShouldRetry);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
Handle = -1;
Connected = false;
}
public UnixSocket Accept()
{
byte[] addr = new byte[110];
uint addrlen = (uint)addr.Length;
fixed(byte *addrP = addr)
{
int r = 0;
do
{
r = accept(Handle, addrP, ref addrlen);
} while (r < 0 && UnixError.ShouldRetry);
if (r < 0)
{
throw UnixError.GetLastUnixException();
}
return(new UnixSocket(r, true));
}
}
public int Read(byte *bufP, int count)
{
int r = 0;
do
{
r = (int)read(Handle, bufP, (SizeT)count);
}while (r < 0 && UnixError.ShouldRetry);
/* Read was successful */
if (r >= 0)
{
return(r);
}
var error = Marshal.GetLastWin32Error();
if (error == 11) /* EAGAIN (ignore for blocking sockets) */
{
return(-error);
}
else if (error >= 103 && error <= 113) /* Bundle common socket errno identifiers */
{
/* ECONNABORTED, ECONNRESET, ENOBUFS, ETIMEDOUT, ... */
// Console.WriteLine ("IO-Error " + error);
throw new UnixSocketException(error);
}
else if (error == 9) /* EBADF */
{
// Console.WriteLine ("Socket closed: bad file descriptor");
throw new UnixSocketException(error);
}
else
{
// Console.WriteLine ("Error " + error);
throw UnixError.GetLastUnixException();
}
}
public UnixException(int errno)
: base($"Error {errno}: {UnixError.GetErrorString(errno)}")
{
Errno = errno;
}