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Diffstat (limited to 'Doc/libmactcp.tex')
-rw-r--r-- | Doc/libmactcp.tex | 166 |
1 files changed, 85 insertions, 81 deletions
diff --git a/Doc/libmactcp.tex b/Doc/libmactcp.tex index 122aa5b..790c48e 100644 --- a/Doc/libmactcp.tex +++ b/Doc/libmactcp.tex @@ -2,22 +2,23 @@ \label{module-mactcp} \bimodindex{mactcp} -\setindexsubitem{(in module mactcp)} -This module provides an interface to the Macintosh TCP/IP driver -MacTCP\@. There is an accompanying module \code{macdnr} which provides an -interface to the name-server (allowing you to translate hostnames to -ip-addresses), a module \code{MACTCPconst} which has symbolic names for -constants constants used by MacTCP. Since the builtin module -\code{socket} is also available on the mac it is usually easier to use -sockets in stead of the mac-specific MacTCP API. +This module provides an interface to the Macintosh TCP/IP driver% +\index{MacTCP} MacTCP\@. There is an accompanying module, +\module{macdnr}\refbimodindex{macdnr}, which provides an interface to +the name-server (allowing you to translate hostnames to IP addresses), +a module \module{MACTCPconst}\refstmodindex{MACTCPconst} which has +symbolic names for constants constants used by MacTCP. Since the +built-in module \module{socket} is also available on the Macintosh it +is usually easier to use sockets instead of the Macintosh-specific +MacTCP API. A complete description of the MacTCP interface can be found in the Apple MacTCP API documentation. \begin{funcdesc}{MTU}{} Return the Maximum Transmit Unit (the packet size) of the network -interface. +interface.\index{Maximum Transmit Unit} \end{funcdesc} \begin{funcdesc}{IPAddr}{} @@ -34,141 +35,144 @@ buffer, \code{4096} is suggested by various sources. \end{funcdesc} \begin{funcdesc}{UDPCreate}{size, port} -Create a UDP stream object. \var{size} is the size of the receive +Create a UDP Stream object. \var{size} is the size of the receive buffer (and, hence, the size of the biggest datagram you can receive on this port). \var{port} is the UDP port number you want to receive datagrams on, a value of zero will make MacTCP select a free port. \end{funcdesc} -\subsection{TCP Stream Objects} -\setindexsubitem{(TCP stream attribute)} +\subsection{TCP Stream Objects} -\begin{datadesc}{asr} -When set to a value different than \code{None} this should point to a +\begin{memberdesc}[TCP Stream]{asr} +\index{asynchronous service routine} +\index{service routine, asynchronous} +When set to a value different than \code{None} this should refer to a function with two integer parameters:\ an event code and a detail. This function will be called upon network-generated events such as urgent -data arrival. In addition, it is called with eventcode -\code{MACTCP.PassiveOpenDone} when a \code{PassiveOpen} completes. This -is a Python addition to the MacTCP semantics. -It is safe to do further calls from the \code{asr}. -\end{datadesc} +data arrival. Macintosh documentation calls this the +\dfn{asynchronous service routine}. In addition, it is called with +eventcode \code{MACTCP.PassiveOpenDone} when a \code{PassiveOpen} +completes. This is a Python addition to the MacTCP semantics. +It is safe to do further calls from \var{asr}. +\end{memberdesc} -\setindexsubitem{(TCP stream method)} -\begin{funcdesc}{PassiveOpen}{port} +\begin{methoddesc}[TCP Stream]{PassiveOpen}{port} Wait for an incoming connection on TCP port \var{port} (zero makes the system pick a free port). The call returns immediately, and you should -use \var{wait} to wait for completion. You should not issue any method -calls other than -\code{wait}, \code{isdone} or \code{GetSockName} before the call -completes. -\end{funcdesc} +use \method{wait()} to wait for completion. You should not issue any method +calls other than \method{wait()}, \method{isdone()} or +\method{GetSockName()} before the call completes. +\end{methoddesc} -\begin{funcdesc}{wait}{} +\begin{methoddesc}[TCP Stream]{wait}{} Wait for \code{PassiveOpen} to complete. -\end{funcdesc} +\end{methoddesc} -\begin{funcdesc}{isdone}{} -Return 1 if a \code{PassiveOpen} has completed. -\end{funcdesc} +\begin{methoddesc}[TCP Stream]{isdone}{} +Return \code{1} if a \code{PassiveOpen} has completed. +\end{methoddesc} -\begin{funcdesc}{GetSockName}{} +\begin{methoddesc}[TCP Stream]{GetSockName}{} Return the TCP address of this side of a connection as a 2-tuple -\code{(host, port)}, both integers. -\end{funcdesc} +\code{(\var{host}, \var{port})}, both integers. +\end{methoddesc} -\begin{funcdesc}{ActiveOpen}{lport, host, rport} -Open an outgoing connection to TCP address \code{(\var{host}, \var{rport})}. Use +\begin{methoddesc}[TCP Stream]{ActiveOpen}{lport, host, rport} +Open an outgoing connection to TCP address \code{(\var{host}, +\var{rport})}. Use local port \var{lport} (zero makes the system pick a free port). This call blocks until the connection has been established. -\end{funcdesc} +\end{methoddesc} -\begin{funcdesc}{Send}{buf, push, urgent} -Send data \var{buf} over the connection. \var{Push} and \var{urgent} +\begin{methoddesc}[TCP Stream]{Send}{buf, push, urgent} +Send data \var{buf} over the connection. \var{push} and \var{urgent} are flags as specified by the TCP standard. -\end{funcdesc} +\end{methoddesc} -\begin{funcdesc}{Rcv}{timeout} +\begin{methoddesc}[TCP Stream]{Rcv}{timeout} Receive data. The call returns when \var{timeout} seconds have passed or when (according to the MacTCP documentation) ``a reasonable amount of data has been received''. The return value is a 3-tuple -\code{(\var{data}, \var{urgent}, \var{mark})}. If urgent data is outstanding \code{Rcv} -will always return that before looking at any normal data. The first -call returning urgent data will have the \var{urgent} flag set, the -last will have the \var{mark} flag set. -\end{funcdesc} +\code{(\var{data}, \var{urgent}, \var{mark})}. If urgent data is +outstanding \code{Rcv} will always return that before looking at any +normal data. The first call returning urgent data will have the +\var{urgent} flag set, the last will have the \var{mark} flag set. +\end{methoddesc} -\begin{funcdesc}{Close}{} +\begin{methoddesc}[TCP Stream]{Close}{} Tell MacTCP that no more data will be transmitted on this connection. The call returns when all data has been acknowledged by the receiving side. -\end{funcdesc} +\end{methoddesc} -\begin{funcdesc}{Abort}{} +\begin{methoddesc}[TCP Stream]{Abort}{} Forcibly close both sides of a connection, ignoring outstanding data. -\end{funcdesc} +\end{methoddesc} -\begin{funcdesc}{Status}{} +\begin{methoddesc}[TCP Stream]{Status}{} Return a TCP status object for this stream giving the current status (see below). -\end{funcdesc} +\end{methoddesc} + \subsection{TCP Status Objects} + This object has no methods, only some members holding information on the connection. A complete description of all fields in this objects can be found in the Apple documentation. The most interesting ones are: -\setindexsubitem{(TCP status attribute)} - -\begin{datadesc}{localHost} -\dataline{localPort} -\dataline{remoteHost} -\dataline{remotePort} +\begin{memberdesc}[TCP Status]{localHost} +\memberline{localPort} +\memberline{remoteHost} +\memberline{remotePort} The integer IP-addresses and port numbers of both endpoints of the connection. -\end{datadesc} +\end{memberdesc} -\begin{datadesc}{sendWindow} +\begin{memberdesc}[TCP Status]{sendWindow} The current window size. -\end{datadesc} +\end{memberdesc} -\begin{datadesc}{amtUnackedData} +\begin{memberdesc}[TCP Status]{amtUnackedData} The number of bytes sent but not yet acknowledged. \code{sendWindow - -amtUnackedData} is what you can pass to \code{Send} without blocking. -\end{datadesc} +amtUnackedData} is what you can pass to \method{Send()} without +blocking. +\end{memberdesc} -\begin{datadesc}{amtUnreadData} -The number of bytes received but not yet read (what you can \code{Recv} -without blocking). -\end{datadesc} +\begin{memberdesc}[TCP Status]{amtUnreadData} +The number of bytes received but not yet read (what you can +\method{Recv()} without blocking). +\end{memberdesc} \subsection{UDP Stream Objects} + Note that, unlike the name suggests, there is nothing stream-like about UDP. -\setindexsubitem{(UDP stream attribute)} -\begin{datadesc}{asr} +\begin{memberdesc}[UDP Stream]{asr} +\index{asynchronous service routine} +\index{service routine, asynchronous} The asynchronous service routine to be called on events such as -datagram arrival without outstanding \code{Read} call. The \code{asr} has a -single argument, the event code. -\end{datadesc} +datagram arrival without outstanding \code{Read} call. The \var{asr} +has a single argument, the event code. +\end{memberdesc} -\begin{datadesc}{port} -A read-only member giving the port number of this UDP stream. -\end{datadesc} +\begin{memberdesc}[UDP Stream]{port} +A read-only member giving the port number of this UDP Stream. +\end{memberdesc} -\setindexsubitem{(UDP stream method)} -\begin{funcdesc}{Read}{timeout} +\begin{methoddesc}[UDP Stream]{Read}{timeout} Read a datagram, waiting at most \var{timeout} seconds (-1 is infinite). Return the data. -\end{funcdesc} +\end{methoddesc} -\begin{funcdesc}{Write}{host, port, buf} +\begin{methoddesc}[UDP Stream]{Write}{host, port, buf} Send \var{buf} as a datagram to IP-address \var{host}, port \var{port}. -\end{funcdesc} +\end{methoddesc} |