\helpref{wxEvtHandler}{wxevthandler}
+\wxheading{Include files}
+
+<wx/socket.h>
+
+\wxheading{wxSocket errors}
+
+\twocolwidtha{7cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{{\bf wxSOCKET\_NOERROR}}{No error happened.}
+\twocolitem{{\bf wxSOCKET\_INVOP}}{Invalid operation.}
+\twocolitem{{\bf wxSOCKET\_IOERR}}{Input/Output error.}
+\twocolitem{{\bf wxSOCKET\_INVADDR}}{Invalid address passed to wxSocket.}
+\twocolitem{{\bf wxSOCKET\_INVSOCK}}{Invalid socket (uninitialized).}
+\twocolitem{{\bf wxSOCKET\_NOHOST}}{No corresponding host.}
+\twocolitem{{\bf wxSOCKET\_INVPORT}}{Invalid port.}
+\twocolitem{{\bf wxSOCKET\_WOULDBLOCK}}{The socket is non-blocking and the operation would block.}
+\twocolitem{{\bf wxSOCKET\_TIMEDOUT}}{The timeout for this operation expired.}
+\twocolitem{{\bf wxSOCKET\_MEMERR}}{Memory exhausted.}
+\end{twocollist}%
+
+\wxheading{wxSocket events}
+
+\twocolwidtha{7cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{{\bf wxSOCKET\_INPUT}}{Some data has arrived to the socket.}
+\twocolitem{{\bf wxSOCKET\_OUTPUT}}{The socket is ready to be written to.}
+\twocolitem{{\bf wxSOCKET\_CONNECTION}}{Incoming connection arrival (server), or connection establishment (client).}
+\twocolitem{{\bf wxSOCKET\_LOST}}{The connection has been closed.}
+\twocolitem{{\bf wxSOCKET\_MAX\_EVENT}}{This should never happen but the compiler may complain about it.}
+\end{twocollist}%
+
+A brief note on how to use these events:
+
+The {\bf wxSOCKET\_INPUT} event will be issued when the incoming queue
+was empty and new data arrives, but NOT if new data arrives when there
+was data waiting in the incoming queue.
+
+The {\bf wxSOCKET\_OUTPUT} event is issued when a socket is first connected
+with Connect or accepted with Accept, and then, only after an output operation
+fails because the output buffer was full, and buffer space becomes available
+again.
+
+The {\bf wxSOCKET\_CONNECTION} event is issued when a connection request
+completes (client) or when a new connection arrives at the pending
+connections queue (server).
+
+The {\bf wxSOCKET\_LOST} event is issued when a close indication is
+received for the socket. This means that the connection broke down or
+that it was closed by the peer.
+
% ---------------------------------------------------------------------------
% Event handling
% ---------------------------------------------------------------------------
\wxheading{Event handling}
To process events from a socket, use the following event handler macro to direct
- input to member
-functions that take a \helpref{wxSocketEvent}{wxsocketevent} argument.
+input to member functions that take a \helpref{wxSocketEvent}{wxsocketevent} argument.
\twocolwidtha{7cm}%
\begin{twocollist}\itemsep=0pt
% ---------------------------------------------------------------------------
\wxheading{See also}
-\helpref{wxSocketEvent}{wxsocketevent}, \helpref{wxSocketClient}{wxsocketclient}, \helpref{wxSocketServer}{wxsocketserver}
+\helpref{wxSocketEvent}{wxsocketevent},
+\helpref{wxSocketClient}{wxsocketclient},
+\helpref{wxSocketServer}{wxsocketserver}
% ---------------------------------------------------------------------------
% Members
\func{}{wxSocketBase}{\void}
-Default constructor but don't use it, you must use \helpref{wxSocketClient}{wxsocketclient}
+Default constructor. Don't use it; use \helpref{wxSocketClient}{wxsocketclient}
or \helpref{wxSocketServer}{wxsocketserver}.
\membersection{wxSocketBase::\destruct{wxSocketBase}}
% State functions
% ---------------------------------------------------------------------------
+%
+% SetFlags
+%
+
+\membersection{wxSocketBase::SetFlags}\label{wxsocketbasesetflags}
+
+\func{void}{SetFlags}{\param{wxSocketBase::wxSockFlags}{ flags}}
+
+\twocolwidtha{7cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{{\bf wxSOCKET\_NONE}}{Normal functionnality.}
+\twocolitem{{\bf wxSOCKET\_NOWAIT}}{Get the available data in the input queue and return immediately.}
+\twocolitem{{\bf wxSOCKET\_WAITALL}}{Wait for all required data unless an error occurs.}
+\twocolitem{{\bf wxSOCKET\_BLOCK}}{Block the GUI (do not wxYield) while reading/writing data.}
+\end{twocollist}
+
+A brief overview on how to use these flags follows.
+
+If no flag is specified (this is the same as {\bf wxSOCKET\_NONE}),
+IO calls will return after some data has been read or written, even
+when the transfer might not be complete. This is the same as issuing
+exactly one blocking low-level call to recv() or send(). Note that
+blocking here refers to when the function returns, not to whether
+the GUI blocks during this time.
+
+If {\bf wxSOCKET\_NOWAIT} is specified, IO calls will return immediately.
+Read operations will retrieve only available data. Write operations will
+write as much data as possible, depending on how much space is available
+in the output buffer. This is the same as issuing exactly one nonblocking
+low-level call to recv() or send(). Note that nonblocking here refers to
+when the function returns, not to whether the GUI blocks during this time.
+
+If {\bf wxSOCKET\_WAITALL} is specified, IO calls won't return until ALL
+the data has been read or written (or until an error occurs), blocking if
+necessary, and issuing several low level calls if necessary. This is the
+same as having a loop which makes as many blocking low-level calls to
+recv() or send() as needed so as to transfer all the data. Note that
+"blocking" here refers to when the function returns, not to whether
+the GUI blocks during this time.
+
+The {\bf wxSOCKET\_BLOCK} controls whether the GUI blocks during IO
+operations. If this flag is not used, then the application must take
+extra care to avoid unwanted reentrance.
+
+So:
+
+{\bf wxSOCKET\_NONE} will try to read SOME data, no matter how much.
+
+{\bf wxSOCKET\_NOWAIT} will always return immediately, even if it cannot
+read or write ANY data.
+
+{\bf wxSOCKET\_WAITALL} will only return when it has read or written ALL
+the data.
+
+{\bf wxSOCKET\_BLOCK} has nothing to do with the previous flags and
+it control whether the GUI blocks.
+
+%
+% SetNotify
+%
+\membersection{wxSocketBase::SetNotify}\label{wxsocketbasesetnotify}
+
+\func{void}{SetNotify}{\param{wxSocketEventFlags}{ flags}}
+
+SetNotify specifies which socket events are to be sent to the event handler.
+The {\it flags} parameter is a combination of flags ORed toghether. The
+following flags can be used:
+
+\twocolwidtha{7cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{{\bf wxSOCKET\_INPUT\_FLAG}}{to receive wxSOCKET\_INPUT}
+\twocolitem{{\bf wxSOCKET\_OUTPUT\_FLAG}}{to receive wxSOCKET\_OUTPUT}
+\twocolitem{{\bf wxSOCKET\_CONNECTION\_FLAG}}{to receive wxSOCKET\_CONNECTION}
+\twocolitem{{\bf wxSOCKET\_LOST\_FLAG}}{to receive wxSOCKET\_LOST}
+\end{twocollist}%
+
+For example:
+
+\begin{verbatim}
+ sock.SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
+\end{verbatim}
+
+In this example, the user will be notified about incoming socket data and
+whenever the connection is closed.
+
+For more information on socket events see \helpref{wxSocket events}{wxsocketbase}.
+
+%
+% SetTimeout
+%
+\membersection{wxSocketBase::SetTimeout}{wxsocketbasesettimeout}
+
+\func{void}{SetTimeout}{\param{int }{seconds}}
+
+This function sets the default socket timeout in seconds. This
+timeout applies to IO calls and also to Wait functions if you
+don't specify a wait interval. If you never use SetTimeout, the
+default timeout will be 10 minutes.
+
+%
+% Notify
+%
+\membersection{wxSocketBase::Notify}\label{wxsocketbasenotify}
+
+\func{void}{Notify}{\param{bool}{ notify}}
+
+Notify will enable (notify is TRUE) or disable (notify is FALSE) the propagation
+of socket events.
+
+%
+% Ok
+%
+
\membersection{wxSocketBase::Ok}\label{wxsocketbaseok}
\constfunc{bool}{Ok}{\void}
\constfunc{bool}{Error}{\void}
-Returns TRUE if an error occured.
+Returns TRUE if an error occured in the last IO operation.
+
+The following operations update the Error() status:
+Read, Write, ReadMsg, WriteMsg, Peek, Unread, Discard.
\membersection{wxSocketBase::IsConnected}\label{wxsocketbaseconnected}
\constfunc{bool}{IsData}{\void}
-Returns TRUE if some data is arrived on the socket.
+Returns TRUE if there is data available to be read.
\membersection{wxSocketBase::IsDisconnected}\label{wxsocketbasedisconnected}
\membersection{wxSocketBase::LastCount}\label{wxsocketbaselastcount}
-\constfunc{size\_t}{LastCount}{\void}
+\constfunc{wxUint32}{LastCount}{\void}
Returns the number of bytes read or written by the last IO call.
+The following operations update the LastCount() value:
+Read, Write, ReadMsg, WriteMsg, Peek, Unread, Discard.
+
\membersection{wxSocketBase::LastError}\label{wxsocketbaselasterror}
-\constfunc{int}{LastError}{\void}
+\constfunc{wxSocketError}{LastError}{\void}
-Returns an error in the errno format (see your C programmer's guide).
+Returns the last wxSocket error. See \helpref{wxSocket errors}{wxsocketbase}.
+
+Please note that this function merely returns the last error code,
+but it should not be used to determine if an error has occured (this
+is because successful operations do not change tha LastError value).
+Use Error, instead of LastError, to determine if the last IO call
+failed. If Error returns TRUE, use LastError to discover the
+cause of the error.
% ---------------------------------------------------------------------------
% IO calls
%
\membersection{wxSocketBase::Peek}\label{wxsocketbasepeek}
-\func{wxSocketBase\&}{Peek}{\param{char *}{ buffer}, \param{size\_t}{ nbytes}}
+\func{wxSocketBase\&}{Peek}{\param{char *}{ buffer}, \param{wxUint32}{ nbytes}}
This function peeks a buffer of {\it nbytes} bytes from the socket. Peeking a buffer
doesn't delete it from the system socket in-queue.
+Use LastCount to verify the number of bytes actually peeked.
+
+Use Error to determine if the operation succeeded.
+
\wxheading{Parameters}
\docparam{buffer}{Buffer where to put peeked data.}
Returns a reference to the current object.
+\wxheading{Remark/Warning}
+
+The exact behaviour of wxSocketBase::Peek() depends on the combination
+of flags being used. For a detailed explanation, see \helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}
+
\wxheading{See also}
-\helpref{wxSocketBase::Error}{wxsocketbaseerror},
- \helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
- \helpref{wxSocketBase::LastError}{wxsocketbaselasterror}
+\helpref{wxSocketBase::Error}{wxsocketbaseerror},
+\helpref{wxSocketBase::LastError}{wxsocketbaselasterror},
+\helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
+\helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}
%
% Read
%
\membersection{wxSocketBase::Read}\label{wxsocketbaseread}
-\func{wxSocketBase\&}{Read}{\param{char *}{ buffer}, \param{size\_t}{ nbytes}}
+\func{wxSocketBase\&}{Read}{\param{char *}{ buffer}, \param{wxUint32}{ nbytes}}
This function reads a buffer of {\it nbytes} bytes from the socket.
+Use LastCount to verify the number of bytes actually read.
+
+Use Error to determine if the operation succeeded.
+
\wxheading{Parameters}
\docparam{buffer}{Buffer where to put read data.}
Returns a reference to the current object.
-\wxheading{See also}
+\wxheading{Remark/Warning}
-\helpref{wxSocketBase::Error}{wxsocketbaseerror},
- \helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
- \helpref{wxSocketBase::LastError}{wxsocketbaselasterror}
-
-\membersection{wxSocketBase::SetFlags}\label{wxsocketbasesetflags}
+The exact behaviour of wxSocketBase::Read() depends on the combination
+of flags being used. For a detailed explanation, see \helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}.
-\func{void}{SetFlags}{\param{wxSockFlags}{ flags}}
+\wxheading{See also}
-TODO
+\helpref{wxSocketBase::Error}{wxsocketbaseerror},
+\helpref{wxSocketBase::LastError}{wxsocketbaselasterror},
+\helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
+\helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}
%
-% Read
+% Write
%
\membersection{wxSocketBase::Write}\label{wxsocketbasewrite}
-\func{wxSocketBase\&}{Write}{\param{const char *}{ buffer}, \param{size\_t}{ nbytes}}
+\func{wxSocketBase\&}{Write}{\param{const char *}{ buffer}, \param{wxUint32}{ nbytes}}
-This function writes a buffer of {\it nbytes} bytes from the socket.
+This function writes a buffer of {\it nbytes} bytes to the socket.
+
+Use LastCount to verify the number of bytes actually written.
+
+Use Error to determine if the operation succeeded.
\wxheading{Parameters}
-\docparam{buffer}{Buffer where to get the data to write.}
+\docparam{buffer}{Buffer with the data to be sent.}
\docparam{nbytes}{Number of bytes.}
Returns a reference to the current object.
+\wxheading{Remark/Warning}
+
+The exact behaviour of wxSocketBase::Write() depends on the combination
+of flags being used. For a detailed explanation, see \helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}.
+
\wxheading{See also}
-\helpref{wxSocketBase::Error}{wxsocketbaseerror},
- \helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
- \helpref{wxSocketBase::LastError}{wxsocketbaselasterror}
+\helpref{wxSocketBase::Error}{wxsocketbaseerror},
+\helpref{wxSocketBase::LastError}{wxsocketbaselasterror},
+\helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
+\helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}
%
% WriteMsg
%
\membersection{wxSocketBase::WriteMsg}\label{wxsocketbasewritemsg}
-\func{wxSocketBase\&}{WriteMsg}{\param{const char *}{ buffer}, \param{size\_t}{ nbytes}}
+\func{wxSocketBase\&}{WriteMsg}{\param{const char *}{ buffer}, \param{wxUint32}{ nbytes}}
-This function writes a buffer of {\it nbytes} bytes from the socket. But it
+This function writes a buffer of {\it nbytes} bytes from the socket, but it
writes a short header before so that ReadMsg can alloc the right size for
-the buffer. So a buffer sent with WriteMsg {\bf must} be read with ReadMsg.
+the buffer. So, a buffer sent with WriteMsg {\bf must} be read with ReadMsg.
+This function always waits for the entire buffer to be sent, unless an
+error occurs.
+
+Use LastCount to verify the number of bytes actually written.
+
+Use Error to determine if the operation succeeded.
\wxheading{Parameters}
-\docparam{buffer}{Buffer where to put data peeked.}
+\docparam{buffer}{Buffer with the data to be sent.}
\docparam{nbytes}{Number of bytes.}
Returns a reference to the current object.
+\wxheading{Remark/Warning}
+
+wxSocketBase::WriteMsg() will behave as if the wxSOCKET_WAITALL flag was always set
+and it will always ignore the wxSOCKET_NOWAIT flag. The exact behaviour of WriteMsg
+depends on the wxSOCKET_BLOCK flag. For a detailed explanation, see \helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}.
+
\wxheading{See also}
-\helpref{wxSocketBase::Error}{wxsocketbaseerror},
- \helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
- \helpref{wxSocketBase::LastError}{wxsocketbaselasterror},
- \helpref{wxSocketBase::ReadMsg}{wxsocketbasereadmsg}
+\helpref{wxSocketBase::Error}{wxsocketbaseerror},
+\helpref{wxSocketBase::LastError}{wxsocketbaselasterror},
+\helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
+\helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags},
+\helpref{wxSocketBase::ReadMsg}{wxsocketbasereadmsg}
%
% ReadMsg
%
\membersection{wxSocketBase::ReadMsg}\label{wxsocketbasereadmsg}
-\func{wxSocketBase\&}{ReadMsg}{\param{char *}{ buffer}, \param{size\_t}{ nbytes}}
+\func{wxSocketBase\&}{ReadMsg}{\param{char *}{ buffer}, \param{wxUint32}{ nbytes}}
This function reads a buffer sent by WriteMsg on a socket. If the buffer passed
-to the function isn't big enough, the function filled it and then discard the
-bytes left. This function always wait for the buffer to be entirely filled.
+to the function isn't big enough, the remaining bytes will be discarded. This
+function always waits for the buffer to be entirely filled, unless an error occurs.
+
+Use LastCount to verify the number of bytes actually read.
+
+Use Error to determine if the operation succeeded.
\wxheading{Parameters}
Returns a reference to the current object.
+\wxheading{Remark/Warning}
+
+wxSocketBase::ReadMsg() will behave as if the wxSOCKET_WAITALL flag was always set
+and it will always ignore the wxSOCKET_NOWAIT flag. The exact behaviour of ReadMsg
+depends on the wxSOCKET_SPEED flag. For a detailed explanation, see \helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags}.
+
\wxheading{See also}
-\helpref{wxSocketBase::Error}{wxsocketbaseerror},
- \helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
- \helpref{wxSocketBase::LastError}{wxsocketbaselasterror},
- \helpref{wxSocketBase::WriteMsg}{wxsocketbasewritemsg}
+\helpref{wxSocketBase::Error}{wxsocketbaseerror},
+\helpref{wxSocketBase::LastError}{wxsocketbaselasterror},
+\helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
+\helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags},
+\helpref{wxSocketBase::WriteMsg}{wxsocketbasewritemsg}
%
% Unread
%
-\membersection{wxSocketBase::UnRead}\label{wxsocketbaseunread}
+\membersection{wxSocketBase::Unread}\label{wxsocketbaseunread}
-\func{wxSocketBase\&}{UnRead}{\param{const char *}{ buffer}, \param{size\_t}{ nbytes}}
+\func{wxSocketBase\&}{Unread}{\param{const char *}{ buffer}, \param{wxUint32}{ nbytes}}
-This function unreads a buffer. It means that the buffer is put in the top
-of the incoming queue. But, it is put also at the end of all unread buffers.
-It is useful for sockets because we can't seek it.
+This function unreads a buffer. That is, the data in the buffer is put back
+in the incoming queue. This function is not affected by wxSocket flags.
+
+If you use LastCount, it will always return {\it nbytes}.
+
+If you use Error, it will always return FALSE.
\wxheading{Parameters}
\wxheading{See also}
-\helpref{wxSocketBase::Error}{wxsocketbaseerror},
- \helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
- \helpref{wxSocketBase::LastError}{wxsocketbaselasterror}
+\helpref{wxSocketBase::Error}{wxsocketbaseerror},
+\helpref{wxSocketBase::LastCount}{wxsocketbaselastcount},
+\helpref{wxSocketBase::LastError}{wxsocketbaselasterror}
%
% Discard
\func{wxSocketBase\&}{Discard}{\void}
This function simply deletes all bytes in the incoming queue. This function
-doesn't wait.
+doesn't wait. That is, it will behave as if the wxSOCKET\_NOWAIT flag was set. The
+wxSOCKET\_SPEED and wxSOCKET\_WAITALL flags have no effect on this function.
+
+Use LastCount to see the number of bytes discarded.
+
+If you use Error, it will always return FALSE.
% ---------------------------------------------------------------------------
% Wait functions
% ---------------------------------------------------------------------------
\membersection{wxSocketBase::Wait}\label{wxsocketbasewait}
-\func{bool}{Wait}{\param{long}{ seconds = -1}, \param{long}{ microsecond = 0}}
+\func{bool}{Wait}{\param{long}{ seconds = -1}, \param{long}{ millisecond = 0}}
-This function waits for an event: it could be an incoming byte, the possibility
-for the client to write, a lost connection, an incoming connection, an
-established connection.
+This function waits until one of the following conditions is true: there
+is data available for reading; the output buffer is empty (you can send
+new data); the connection has been lost; an incoming connection arrived
+(only for servers); a connection request has completed (only for clients).
\wxheading{Parameters}
-\docparam{seconds}{Number of seconds to wait. By default, it waits infinitely.}
+\docparam{seconds}{Number of seconds to wait. If -1, it will wait for the default timeout set with SetTimeout.}
-\docparam{microsecond}{Number of microseconds to wait.}
+\docparam{millisecond}{Number of milliseconds to wait.}
\wxheading{Return value}
\wxheading{See also}
-\helpref{wxSocketBase::WaitForRead}{wxsocketbasewaitforread},
- \helpref{wxSocketBase::WaitForWrite}{wxsocketbasewaitforwrite},
- \helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
+\helpref{wxSocketBase::WaitForRead}{wxsocketbasewaitforread},
+\helpref{wxSocketBase::WaitForWrite}{wxsocketbasewaitforwrite},
+\helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
%
% WaitForRead
%
\membersection{wxSocketBase::WaitForRead}\label{wxsocketbasewaitforread}
-\func{bool}{WaitForRead}{\param{long}{ seconds = -1}, \param{long}{ microsecond = 0}}
+\func{bool}{WaitForRead}{\param{long}{ seconds = -1}, \param{long}{ millisecond = 0}}
-This function waits for a read event.
+This function waits until there is data available to be read.
\wxheading{Parameters}
-\docparam{seconds}{Number of seconds to wait. By default, it waits infinitely.}
+\docparam{seconds}{Number of seconds to wait. If -1, it will wait for the default timeout set with SetTimeout.}
-\docparam{microsecond}{Number of microseconds to wait.}
+\docparam{millisecond}{Number of milliseconds to wait.}
\wxheading{Return value}
-Returns TRUE if a byte arrived, FALSE if the timeout was reached.
+Returns TRUE if there is data to be read, FALSE if the timeout was reached.
\wxheading{See also}
-\helpref{wxSocketBase::Wait}{wxsocketbasewait},
- \helpref{wxSocketBase::WaitForWrite}{wxsocketbasewaitforwrite},
- \helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
+\helpref{wxSocketBase::Wait}{wxsocketbasewait},
+\helpref{wxSocketBase::WaitForWrite}{wxsocketbasewaitforwrite},
+\helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
%
% WaitForWrite
%
\membersection{wxSocketBase::WaitForWrite}\label{wxsocketbasewaitforwrite}
-\func{bool}{WaitForWrite}{\param{long}{ seconds = -1}, \param{long}{ microsecond = 0}}
+\func{bool}{WaitForWrite}{\param{long}{ seconds = -1}, \param{long}{ millisecond = 0}}
-This function waits for a write event.
+This function waits until you can write to the socket.
\wxheading{Parameters}
-\docparam{seconds}{Number of seconds to wait. By default, it waits infinitely.}
+\docparam{seconds}{Number of seconds to wait. If -1, it will wait for the default timeout set with SetTimeout.}
-\docparam{microsecond}{Number of microseconds to wait.}
+\docparam{millisecond}{Number of milliseconds to wait.}
\wxheading{Return value}
-Returns TRUE if a write event occured, FALSE if the timeout was reached.
+Returns TRUE if you can write to the socket, FALSE if the timeout was reached.
\wxheading{See also}
-\helpref{wxSocketBase::Wait}{wxsocketbasewait},
- \helpref{wxSocketBase::WaitForRead}{wxsocketbasewaitforread},
- \helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
+\helpref{wxSocketBase::Wait}{wxsocketbasewait},
+\helpref{wxSocketBase::WaitForRead}{wxsocketbasewaitforread},
+\helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
%
% WaitForLost
%
\membersection{wxSocketBase::WaitForLost}\label{wxsocketbasewaitforlost}
-\func{bool}{Wait}{\param{long}{ seconds = -1}, \param{long}{ microsecond = 0}}
+\func{bool}{Wait}{\param{long}{ seconds = -1}, \param{long}{ millisecond = 0}}
-This function waits for a "lost" event. For instance, the peer may have closed
-the connection, or the connection may have been broken.
+This function waits until the connection is lost. This may happen if the
+peer closes the connection or if the connection breaks.
\wxheading{Parameters}
-\docparam{seconds}{Number of seconds to wait. By default, it waits infinitely.}
+\docparam{seconds}{Number of seconds to wait. If -1, it will wait for the default timeout set with SetTimeout.}
-\docparam{microsecond}{Number of microseconds to wait.}
+\docparam{millisecond}{Number of milliseconds to wait.}
\wxheading{Return value}
-Returns TRUE if a "lost" event occured, FALSE if the timeout was reached.
+Returns TRUE if the connection was lost, FALSE if the timeout was reached.
\wxheading{See also}
-\helpref{wxSocketBase::WaitForRead}{wxsocketbasewaitforread},
- \helpref{wxSocketBase::WaitForWrite}{wxsocketbasewaitforwrite},
- \helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
+\helpref{wxSocketBase::WaitForRead}{wxsocketbasewaitforread},
+\helpref{wxSocketBase::WaitForWrite}{wxsocketbasewaitforwrite},
+\helpref{wxSocketBase::WaitForLost}{wxsocketbasewaitforlost}
+
+% ---------------------------------------------------------------------------
+% Socket state
+% ---------------------------------------------------------------------------
%
% RestoreState
\func{void}{RestoreState}{\void}
-This function restores a previously saved state.
+This function restores the previous state of the socket, as saved
+with SaveState.
+
+Calls to SaveState / RestoreState can be nested.
\wxheading{See also}
\helpref{wxSocketBase::SaveState}{wxsocketbasesavestate}
-% ---------------------------------------------------------------------------
-% Socket state
-% ---------------------------------------------------------------------------
%
% SaveState
%
\func{void}{SaveState}{\void}
This function saves the current state of the socket object in a stack:
-actually it saves all flags and the state of the asynchronous callbacks.
+actually it saves all flags (those set with SetFlags, SetNotify, Notfy)
+and the state of the asynchronous callbacks (Callback, CallbackData).
+
+Calls to SaveState / RestoreState can be nested.
\wxheading{See also}
\helpref{wxSocketBase::RestoreState}{wxsocketbaserestorestate}
+%
+% GetLocal
+%
+\membersection{wxSocketBase::GetLocal}{wxsocketbasegetlocal}
+
+\constfunc{bool}{GetLocal}{\param{wxSockAddress\& }{addr_man}}
+
+This function returns the local address field of the socket. The local
+address field contains the complete local address of the socket (local
+address, local port, ...).
+
+\wxheading{Return value}
+
+It returns TRUE if no errors happened, FALSE otherwise.
+
+%
+% GetPeer
+%
+\membersection{wxSocketBase::GetPeer}{wxsocketbasegetlocal}
+
+\constfunc{bool}{GetPeer}{\param{wxSockAddress\& }{addr_man}}
+
+This function returns the peer address field of the socket. The peer
+address field contains the complete peer host address of the socket
+(address, port, ...).
+
+\wxheading{Return value}
+
+It returns TRUE if no errors happened, FALSE otherwise.
+
% ---------------------------------------------------------------------------
% Socket callbacks
% ---------------------------------------------------------------------------
\func{void}{SetEventHandler}{\param{wxEvtHandler\&}{ evt\_hdlr}, \param{int}{ id = -1}}
-Sets an event handler to be called when a socket event occured.
+Sets an event handler to be called when a socket event occurs. The handler
+will be called for those events for which notification is enabled with
+SetNotify and Notify.
+
+You can also specify a C callback to be called when an event occurs. See
+Callback and CallbackData.
\wxheading{Parameters}
\wxheading{See also}
-\helpref{wxSocketEvent}{wxsocketevent}
+\helpref{wxSocketBase::SetNotify}{wxsocketbasesetnotify},
+\helpref{wxSocketBase::Notify}{wxsocketbasenotify},
+\helpref{wxSocketEvent}{wxsocketevent},
+\helpref{wxEvtHandler}{wxevthandler},
+\helpref{wxSocketBase::Callback}{wxsocketbasecallback},
+\helpref{wxSocketBase::CallbackData}{wxsocketbasecallbackdata}
+
+\membersection{wxSocketBase::Callback}\label{wxsocketbasecallback}
+
+\func{wxSocketBase::wxSockCbk}{Callback}{\param{wxSocketBase::wxSockCbk}{ callback}}
+
+You can setup a C callback to be called when an event occurs. The callback
+will be called only for those events for which notification has been enabled
+with Notify and SetNotify. The prototype of the callback must be as follows:
+
+\begin{verbatim}
+void SocketCallback(wxSocketBase& sock,wxSocketNotify evt,char *cdata);
+\end{verbatim}
+
+The first parameter is a reference to the socket object in which the event
+occured. The second parameter tells you which event occured. (See \helpref{wxSocket events}{wxsocketbase}).
+The third parameter is the user data you specified using \helpref{CallbackData}{wxsocketbasecallbackdata}.
+
+\wxheading{Return value}
+
+A pointer to the previous callback.
+
+\wxheading{See also}
+
+\helpref{wxSocketBase::CallbackData}{wxsocketbasecallbackdata},
+\helpref{wxSocketBase::SetNotify}{wxsocketbasesetnotify},
+\helpref{wxSocketBase::Notify}{wxsocketbasenotify}
+
+\membersection{wxSocketBase::CallbackData}\label{wxsocketbasecallbackdata}
+
+\func{char *}{CallbackData}{\param{char *}{cdata}}
+
+This function sets the the user data which will be passed to a \helpref{C callback}{wxsocketbasecallback}.
+
+\wxheading{Return value}
+
+A pointer to the previous user data.
+
+\helpref{wxSocketBase::Callback}{wxsocketbasecallback},
+\helpref{wxSocketBase::SetNotify}{wxsocketbasesetnotify},
+\helpref{wxSocketBase::Notify}{wxsocketbasenotify}
% ---------------------------------------------------------------------------
% CLASS wxSocketClient
\helpref{wxSocketBase}{wxsocketbase}
+\wxheading{Include files}
+
+<wx/socket.h>
+
% ---------------------------------------------------------------------------
% Members
% ---------------------------------------------------------------------------
Constructs a new wxSocketClient.
-{\bf Warning !} The created socket client needs to be registered to a socket handler (See \helpref{wxSocketHandler}{wxsockethandler}).
-
\wxheading{Parameters}
\docparam{flags}{Socket flags (See \helpref{wxSocketBase::SetFlags}{wxsocketbasesetflags})}
\func{}{\destruct{wxSocketClient}}{\void}
-Destructs a wxSocketClient object.
+Destroys a wxSocketClient object.
%
% Connect
\func{bool}{Connect}{\param{wxSockAddress\&}{ address}, \param{bool}{ wait = TRUE}}
-Connects to a server using the specified address. If {\it wait} is TRUE, Connect
-will wait for the socket ready to send or receive data.
+Connects to a server using the specified address.
+
+If {\it wait} is TRUE, Connect will wait until the connection completes and
+the socket is ready to send or receive data, or until an event occurs.
+
+{\bf Warning !} This will block the GUI.
+
+If {\it wait} is FALSE, Connect will try to establish the connection and
+return immediately, without blocking the GUI. When used this way, even if
+Connect returns FALSE, the connection request can be completed later.
+To detect this, use WaitConnection, or watch "connection" events (for
+succesful establishment) and "lost" events (for connection failure).
\wxheading{Parameters}
Returns TRUE if the connection is established and no error occurs.
+If {\it wait} was TRUE, and Connect returns FALSE, an error occured
+and the connection failed.
+
+If {\it wait} was FALSE, and Connect returns FALSE, you should still
+be prepared to handle the completion of this connection request, either
+with WaitOnConnect or by watching "connection" and "lost" events.
+
\wxheading{See also}
-\helpref{wxSocketClient::WaitOnConnect}{wxsocketclientwaitonconnect}
+\helpref{wxSocketClient::WaitOnConnect}{wxsocketclientwaitonconnect},
+\helpref{wxSocketBase::SetNotify}{wxsocketbasesetnotify},
+\helpref{wxSocketBase::Notify}{wxsocketbasenotify}
%
% WaitOnConnect
%
\membersection{wxSocketClient::WaitOnConnect}\label{wxsocketclientwaitonconnect}
-\func{bool}{WaitOnConnect}{\param{long}{ seconds = -1}, \param{long}{ microseconds = 0}}
+\func{bool}{WaitOnConnect}{\param{long}{ seconds = -1}, \param{long}{ milliseconds = 0}}
+
+Wait until the connection is succesfully established or until it fails.
+Use this function after a call to Connect with {\it wait} set to FALSE.
+
+\wxheading{Parameters}
+
+\docparam{seconds}{Number of seconds to wait. If -1, it will wait for the default timeout set with SetTimeout.}
-Wait for a "connect" event.
+\docparam{millisecond}{Number of milliseconds to wait.}
+
+\wxheading{Return value}
+
+If the connection is succesfully established, it returns TRUE.
+
+If the timeout expires, or if the connection fails, it returns FALSE.
\wxheading{See also}
-\helpref{wxSocketBase::Wait}{wxsocketbasewait} for a detailed description.
+\helpref{wxSocketClient::Connect}{wxsocketclientconnect}
% ---------------------------------------------------------------------------
% CLASS: wxSocketEvent
\helpref{wxEvent}{wxevent}
+\wxheading{Include files}
+
+<wx/socket.h>
+
\wxheading{Event table macros}
To process a socket event, use these event handler macros to direct input to member
\twocolitem{{\bf EVT\_SOCKET(id, func)}}{Process a socket event, supplying the member function.}
\end{twocollist}%
+[TODO:]
+A brief note on how to use events.
+The wxSOCKET_INPUT event is generated when the
+
\wxheading{See also}
-\helpref{wxSocketHandler}{wxsockethandler},\rtfsp
-\helpref{wxSocketBase}{wxsocketbase},\rtfsp
-\helpref{wxSocketClient}{wxsocketclient},\rtfsp
+\helpref{wxSocketBase}{wxsocketbase},
+\helpref{wxSocketClient}{wxsocketclient},
\helpref{wxSocketServer}{wxsocketserver}
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxSocketEvent::SocketEvent}\label{wxsocketeventsocketevent}
-\constfunc{wxSocketBase::wxRequestEvent}{SocketEvent}{\void}
+\constfunc{wxSocketNotify}{SocketEvent}{\void}
Returns the socket event type.
-% ---------------------------------------------------------------------------
-% CLASS: wxSocketHandler
-% ---------------------------------------------------------------------------
-\section{\class{wxSocketHandler}}\label{wxsockethandler}
-
-\wxheading{Derived from}
-
-\helpref{wxObject}{wxobject}
-
-% ---------------------------------------------------------------------------
-% Members
-% ---------------------------------------------------------------------------
-\latexignore{\rtfignore{\wxheading{Members}}}
-
-%
-% wxSocketHandler
-%
-\membersection{wxSocketHandler::wxSocketHandler}
-
-\func{}{wxSocketHandler}{\void}
-
-Constructs a new wxSocketHandler.
-
-It is advised to use \helpref{wxSocketHandler::Master}{wxsockethandlermaster} to
-get a socket handler. But creating a socket handler is useful to group
-many sockets.
-
-%
-% ~wxSocketHandler
-%
-\membersection{wxSocketHandler::\destruct{wxSocketHandler}}
-
-\func{}{\destruct{wxSocketHandler}}{\void}
-
-Destructs a wxSocketHandler object.
-
-%
-% Register
-%
-\membersection{wxSocketHandler::Register}
-
-\func{void}{Register}{\param{wxSocketBase *}{socket}}
-
-Register a socket: if it is already registered in this handler it will just
-return immediately.
-
-\wxheading{Parameters}
-
-\docparam{socket}{Socket to be registered.}
-
-%
-% UnRegister
-%
-\membersection{wxSocketHandler::UnRegister}
-
-\func{void}{UnRegister}{\param{wxSocketBase *}{socket}}
-
-UnRegister a socket: if it isn't registered in this handler it will just
-return.
-
-\wxheading{Parameters}
-
-\docparam{socket}{Socket to be unregistered.}
-
-%
-% Count
-%
-\membersection{wxSocketHandler::Count}
-
-\constfunc{unsigned long}{Count}{\void}
-
-Returns the number of sockets registered in the handler.
-
-\wxheading{Return value}
-
-Number of sockets registered.
-
-%
-% CreateServer
-%
-\membersection{wxSocketHandler::CreateServer}
-
-\func{wxSocketServer *}{CreateServer}{\param{wxSockAddress\&}{ address}, \param{wxSocketBase::wxSockFlags}{ flags = wxSocketbase::NONE}}
-
-Creates a new wxSocketServer object. The object is automatically registered
-to the current socket handler.
-For a detailed description of the parameters, see \helpref{wxSocketServer::wxSocketServer}{wxsocketserverconstr}.
-
-\wxheading{Return value}
-
-Returns a new socket server.
-
-%
-% CreateClient
-%
-\membersection{wxSocketHandler::CreateClient}
-
-\func{wxSocketServer *}{CreateClient}{\param{wxSocketBase::wxSockFlags}{ flags = wxSocketbase::NONE}}
-
-Creates a new wxSocketClient object. The object is automatically registered
-to the current socket handler.
-
-For a detailed description of the parameters, see \helpref{wxSocketClient::Connect}{wxsocketclientconnect}.
-
-\wxheading{Return value}
-
-Returns a new socket client.
-
-%
-% Master
-%
-\membersection{wxSocketHandler::Master}\label{wxsockethandlermaster}
-
-\func{static wxSocketHandler\&}{Master}{\void}
-
-Returns a default socket handler.
-
-%
-% Wait
-%
-\membersection{wxSocketHandler::Wait}
-
-\func{int}{Wait}{\param{long}{ seconds},\param{long}{ microseconds}}
-
-Wait for an event on all registered sockets.
-
-\wxheading{Parameters}
-
-\docparam{seconds}{Number of seconds to wait. By default, it waits infinitely.}
-
-\docparam{microsecond}{Number of microseconds to wait.}
-
-\wxheading{Return value}
-
-Returns 0 if a timeout occured, else the number of events detected.
-
-\wxheading{See also}
-
-\helpref{wxSocketBase::Wait}{wxsocketbasewait}
-
-%
-% YieldSock
-%
-\membersection{wxSocketHandler::YieldSock}
-
-\func{void}{YieldSock}{\void}
-
-Execute pending requests in all registered sockets.
-
% ---------------------------------------------------------------------------
% CLASS: wxSocketServer
% ---------------------------------------------------------------------------
\helpref{wxSocketBase}{wxsocketbase}
+\wxheading{Include files}
+
+<wx/socket.h>
+
% ---------------------------------------------------------------------------
% Members
% ---------------------------------------------------------------------------
Constructs a new wxSocketServer.
-{\bf Warning !} The created object needs to be registered to a socket handler
-(see \helpref{wxSocketHandler}{wxsockethandler}).
-
\wxheading{Parameters}
\docparam{address}{Specifies the local address for the server (e.g. port number).}
\func{}{\destruct{wxSocketServer}}{\void}
-Destructs a wxSocketServer object (it doesn't close the accepted connection).
+Destroys a wxSocketServer object (it doesn't close the accepted connections).
%
% Accept
%
-\membersection{wxSocketServer::Accept}
+\membersection{wxSocketServer::Accept}\label{wxsocketserveraccept}
+
+\func{wxSocketBase *}{Accept}{\param{bool}{ wait = TRUE}}
+
+Creates a new object wxSocketBase and accepts an incoming connection.
-\func{wxSocketBase *}{Accept}{\void}
+If {\it wait} is TRUE and there are no pending connections to be
+accepted, it will wait for the next incoming connection to arrive.
+{\bf Warning !} This will block the GUI.
-Creates a new object wxSocketBase and accepts an incoming connection. {\bf Warning !} This function will block the GUI.
+If {\it wait} is FALSE, it will try to accept a pending connection
+if there is one, but it will always return immediately without
+blocking the GUI. If you want to use Accept in this way, you can
+either check for incoming connections with WaitForAccept or watch
+"connection" events, then call Accept once you know that there is
+an incoming connection waiting to be accepted.
\wxheading{Return value}
-Returns an opened socket connection.
+Returns an opened socket connection, or NULL if an error occured or
+if the {\it wait} parameter was FALSE and there were no pending
+connections.
\wxheading{See also}
+\helpref{wxSocketServer::WaitForAccept}{wxsocketserverwaitforaccept},
+\helpref{wxSocketBase::SetNotify}{wxsocketbasesetnotify},
+\helpref{wxSocketBase::Notify}{wxsocketbasenotify},
\helpref{wxSocketServer::AcceptWith}{wxsocketserveracceptwith}
%
%
\membersection{wxSocketServer::AcceptWith}\label{wxsocketserveracceptwith}
-\func{bool}{AcceptWith}{\param{wxSocketBase\&}{ socket}}
+\func{bool}{AcceptWith}{\param{wxSocketBase\&}{ socket}, \param{bool}{ wait = TRUE}}
Accept an incoming connection using the specified socket object.
This is useful when someone wants to inherit wxSocketBase.
\wxheading{Return value}
-Returns TRUE if no error occurs, else FALSE.
+Returns TRUE on success, or FALSE if an error occured or if the
+{\it wait} parameter was FALSE and there were no pending
+connections.
+\helpref{wxSocketServer::WaitForAccept}{wxsocketserverwaitforaccept},
+\helpref{wxSocketBase::SetNotify}{wxsocketbasesetnotify},
+\helpref{wxSocketBase::Notify}{wxsocketbasenotify},
+\helpref{wxSocketServer::Accept}{wxsocketserveraccept}
+
+%
+% WaitForAccept
+%
+\membersection{wxSocketServer::WaitForAccept}\label{wxsocketserverwaitforaccept}
+
+\func{bool}{WaitForAccept}{\param{long}{ seconds = -1}, \param{long}{ millisecond = 0}}
+
+This function waits for an incoming connection. Use it if you want to call
+Accept or AcceptWith with {\it wait} set to FALSE, to detect when an incoming
+connection is waiting to be accepted.
+
+\wxheading{Parameters}
+
+\docparam{seconds}{Number of seconds to wait. If -1, it will wait for the default timeout set with SetTimeout.}
+
+\docparam{millisecond}{Number of milliseconds to wait.}
+
+\wxheading{Return value}
+
+Returns TRUE if an incoming connection arrived, FALSE if the timeout expired.
+
+\wxheading{See also}
+
+\helpref{wxSocketServer::Accept}{wxsocketserveraccept},
+\helpref{wxSocketServer::AcceptWith}{wxsocketserveracceptwith}
projects / wxWidgets.git / blobdiff