Library: TCP/IP client and server support (OMTCP legacy, OmniMark versions 4 - 6.0.1) Include: omtcp.xin

Return type: opaque Returns: A TCP connection object.

Declaration

define external TCPConnection function TCPConnectionOpen
      on value string host-name
      at value integer port-number
    timeout value integer timeout-in-milliseconds optional
as TCPConnectionOpen

This function is used by a client program to establish a connection to a server program that is running on a specific host machine and port.

The timeout value, if specified, applies only to the wait for the connection. If the timeout is exceeded, the connection fails. If the timeout is not specified, TCPConnectionOpen "blocks" until a connection is made or some other cause of failure is encountered.

If TCPConnectionOpen fails, it still returns a TCP connection object. This failure object is in error and is not connected.

Arguments:

• "host-name" is the name or IP address of the connection host.
• "port-number" is the port the connection is on.
• "timeout-in-milliseconds" is how long the function will attempt to make connection before aborting.

Example:

  local TCPConnection client
  
  set client to TCPConnectionOpen on "123.123.123.45" at 5600

Other Library Functions TCPConnection TCPConnectionClose TCPConnectionGetCharacters TCPConnectionGetLine TCPConnectionGetOutput TCPConnectionGetPeerIP TCPConnectionGetPeerName TCPConnectionGetSource TCPConnectionGetStatusReport TCPConnectionHasCharactersToRead TCPConnectionIsConnected TCPConnectionIsInError TCPConnectionOpen TCPConnectionPut TCPConnectionSetBuffering TCPConnectionSignalSourceEnd TCPIsVersionCompatible TCPLibraryVersion TCPService TCPServiceAcceptConnection TCPServiceClose TCPServiceGetPort TCPServiceGetStatusReport TCPServiceIsInError TCPServiceIsOpen TCPServiceOpen TCPTraceConnectionOpen

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