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533 lines
32 KiB
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQNetworkProtocol Class Reference<br><small>[<a href="network.html">network module</a>]</small></h1>
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<p>The TQNetworkProtocol class provides a common API for network protocols.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="tqnetworkprotocol-h.html">tqnetworkprotocol.h</a>></tt>
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<p>Inherits <a href="tqobject.html">TQObject</a>.
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<p>Inherited by <a href="tqftp.html">TQFtp</a>, <a href="tqhttp.html">TQHttp</a>, and <a href="tqlocalfs.html">TQLocalFs</a>.
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<p><a href="tqnetworkprotocol-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn>enum <a href="#State-enum"><b>State</b></a> { StWaiting = 0, StInProgress, StDone, StFailed, StStopped }</li>
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<li class=fn>enum <a href="#Operation-enum"><b>Operation</b></a> { OpListChildren = 1, OpMkDir = 2, OpMkdir = OpMkDir, OpRemove = 4, OpRename = 8, OpGet = 32, OpPut = 64 }</li>
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<li class=fn>enum <a href="#ConnectionState-enum"><b>ConnectionState</b></a> { ConHostFound, ConConnected, ConClosed }</li>
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<li class=fn>enum <a href="#Error-enum"><b>Error</b></a> { NoError = 0, ErrValid, ErrUnknownProtocol, ErrUnsupported, ErrParse, ErrLoginIncorrect, ErrHostNotFound, ErrListChildren, ErrListChlidren = ErrListChildren, ErrMkDir, ErrMkdir = ErrMkDir, ErrRemove, ErrRename, ErrGet, ErrPut, ErrFileNotExisting, ErrPermissionDenied }</li>
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<li class=fn><a href="#TQNetworkProtocol"><b>TQNetworkProtocol</b></a> ()</li>
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<li class=fn>virtual <a href="#~TQNetworkProtocol"><b>~TQNetworkProtocol</b></a> ()</li>
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<li class=fn>virtual void <a href="#setUrl"><b>setUrl</b></a> ( TQUrlOperator * u )</li>
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<li class=fn>virtual void <a href="#setAutoDelete"><b>setAutoDelete</b></a> ( bool b, int i = 10000 )</li>
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<li class=fn>bool <a href="#autoDelete"><b>autoDelete</b></a> () const</li>
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<li class=fn>virtual int <a href="#supportedOperations"><b>supportedOperations</b></a> () const</li>
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<li class=fn>virtual void <a href="#addOperation"><b>addOperation</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>TQUrlOperator * <a href="#url"><b>url</b></a> () const</li>
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<li class=fn>TQNetworkOperation * <a href="#operationInProgress"><b>operationInProgress</b></a> () const</li>
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<li class=fn>virtual void <a href="#clearOperationQueue"><b>clearOperationQueue</b></a> ()</li>
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<li class=fn>virtual void <a href="#stop"><b>stop</b></a> ()</li>
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</ul>
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<h2>Signals</h2>
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<ul>
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<li class=fn>void <a href="#data"><b>data</b></a> ( const TQByteArray & data, TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#connectionStateChanged"><b>connectionStateChanged</b></a> ( int state, const TQString & data )</li>
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<li class=fn>void <a href="#finished"><b>finished</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#start"><b>start</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#newChildren"><b>newChildren</b></a> ( const TQValueList<TQUrlInfo> & i, TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#newChild"><b>newChild</b></a> ( const TQUrlInfo & i, TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#createdDirectory"><b>createdDirectory</b></a> ( const TQUrlInfo & i, TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#removed"><b>removed</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#itemChanged"><b>itemChanged</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>void <a href="#dataTransferProgress"><b>dataTransferProgress</b></a> ( int bytesDone, int bytesTotal, TQNetworkOperation * op )</li>
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</ul>
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<h2>Static Public Members</h2>
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<ul>
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<li class=fn>void <a href="#registerNetworkProtocol"><b>registerNetworkProtocol</b></a> ( const TQString & protocol, TQNetworkProtocolFactoryBase * protocolFactory )</li>
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<li class=fn>TQNetworkProtocol * <a href="#getNetworkProtocol"><b>getNetworkProtocol</b></a> ( const TQString & protocol )</li>
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<li class=fn>bool <a href="#hasOnlyLocalFileSystem"><b>hasOnlyLocalFileSystem</b></a> ()</li>
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</ul>
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<h2>Protected Members</h2>
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<ul>
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<li class=fn>virtual void <a href="#operationListChildren"><b>operationListChildren</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>virtual void <a href="#operationMkDir"><b>operationMkDir</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>virtual void <a href="#operationRemove"><b>operationRemove</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>virtual void <a href="#operationRename"><b>operationRename</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>virtual void <a href="#operationGet"><b>operationGet</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>virtual void <a href="#operationPut"><b>operationPut</b></a> ( TQNetworkOperation * op )</li>
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<li class=fn>virtual bool <a href="#checkConnection"><b>checkConnection</b></a> ( TQNetworkOperation * op )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQNetworkProtocol class provides a common API for network protocols.
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<p>
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<p> This is a base class which should be used for network protocols
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implementations that can then be used in TQt (e.g. in the file
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dialog) together with the <a href="tqurloperator.html">TQUrlOperator</a>.
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<p> The easiest way to implement a new network protocol is to
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reimplement the operation*() methods, e.g. <a href="#operationGet">operationGet</a>(), etc.
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Only the supported operations should be reimplemented. To specify
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which operations are supported, also reimplement
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<a href="#supportedOperations">supportedOperations</a>() and return an int that is OR'd together
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using the supported operations from the <a href="#Operation-enum">TQNetworkProtocol::Operation</a> enum.
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<p> When you implement a network protocol this way, it is important to
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emit the correct signals. Also, always emit the <a href="#finished">finished</a>() signal
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when an operation is done (on success <em>and</em> on failure). TQt
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relies on correctly emitted finished() signals.
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<p> For a detailed description of the TQt Network Architecture and how
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to implement and use network protocols in TQt, see the <a href="network.html">TQt Network Documentation</a>.
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<p>See also <a href="io.html">Input/Output and Networking</a>.
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<hr><h2>Member Type Documentation</h2>
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<h3 class=fn><a name="ConnectionState-enum"></a>TQNetworkProtocol::ConnectionState</h3>
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<p> When the connection state of a network protocol changes it emits
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the signal <a href="#connectionStateChanged">connectionStateChanged</a>(). The first argument is one of
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the following values:
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<ul>
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<li><tt>TQNetworkProtocol::ConHostFound</tt> - Host has been found.
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<li><tt>TQNetworkProtocol::ConConnected</tt> - Connection to the host has been established.
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<li><tt>TQNetworkProtocol::ConClosed</tt> - Connection has been closed.
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</ul>
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<h3 class=fn><a name="Error-enum"></a>TQNetworkProtocol::Error</h3>
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<p> When an operation fails (finishes unsuccessfully), the
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<a href="tqnetworkoperation.html">TQNetworkOperation</a> of the operation returns an error code which has
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one of the following values:
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<ul>
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<li><tt>TQNetworkProtocol::NoError</tt> - No error occurred.
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<li><tt>TQNetworkProtocol::ErrValid</tt> - The URL you are operating on is not valid.
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<li><tt>TQNetworkProtocol::ErrUnknownProtocol</tt> - There is no protocol implementation
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available for the protocol of the URL you are operating on (e.g.
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if the protocol is http and no http implementation has been
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registered).
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<li><tt>TQNetworkProtocol::ErrUnsupported</tt> - The operation is not supported by the
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protocol.
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<li><tt>TQNetworkProtocol::ErrParse</tt> - The URL could not be parsed correctly.
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<li><tt>TQNetworkProtocol::ErrLoginIncorrect</tt> - You needed to login but the username
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or password is wrong.
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<li><tt>TQNetworkProtocol::ErrHostNotFound</tt> - The specified host (in the URL) couldn't
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be found.
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<li><tt>TQNetworkProtocol::ErrListChildren</tt> - An error occurred while listing the
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children (files).
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<li><tt>TQNetworkProtocol::ErrMkDir</tt> - An error occurred when creating a directory.
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<li><tt>TQNetworkProtocol::ErrRemove</tt> - An error occurred when removing a child (file).
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<li><tt>TQNetworkProtocol::ErrRename</tt> - An error occurred when renaming a child (file).
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<li><tt>TQNetworkProtocol::ErrGet</tt> - An error occurred while getting (retrieving) data.
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<li><tt>TQNetworkProtocol::ErrPut</tt> - An error occurred while putting (uploading) data.
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<li><tt>TQNetworkProtocol::ErrFileNotExisting</tt> - A file which is needed by the operation
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doesn't exist.
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<li><tt>TQNetworkProtocol::ErrPermissionDenied</tt> - Permission for doing the operation has
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been denied.
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</ul><p> You should also use these error codes when implementing custom
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network protocols. If this is not possible, you can define your own
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error codes by using integer values that don't conflict with any
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of these values.
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<h3 class=fn><a name="Operation-enum"></a>TQNetworkProtocol::Operation</h3>
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<p> This enum lists the possible operations that a network protocol
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can support. <a href="#supportedOperations">supportedOperations</a>() returns an int of these that is
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OR'd together. Also, the type() of a <a href="tqnetworkoperation.html">TQNetworkOperation</a> is always
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one of these values.
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<ul>
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<li><tt>TQNetworkProtocol::OpListChildren</tt> - List the children of a URL, e.g. of a directory.
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<li><tt>TQNetworkProtocol::OpMkDir</tt> - Create a directory.
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<li><tt>TQNetworkProtocol::OpRemove</tt> - Remove a child (e.g. a file).
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<li><tt>TQNetworkProtocol::OpRename</tt> - Rename a child (e.g. a file).
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<li><tt>TQNetworkProtocol::OpGet</tt> - Get data from a location.
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<li><tt>TQNetworkProtocol::OpPut</tt> - Put data to a location.
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</ul>
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<h3 class=fn><a name="State-enum"></a>TQNetworkProtocol::State</h3>
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<p> This enum contains the state that a <a href="tqnetworkoperation.html">TQNetworkOperation</a> can have.
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<ul>
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<li><tt>TQNetworkProtocol::StWaiting</tt> - The operation is in the TQNetworkProtocol's queue
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waiting to be prcessed.
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<li><tt>TQNetworkProtocol::StInProgress</tt> - The operation is being processed.
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<li><tt>TQNetworkProtocol::StDone</tt> - The operation has been processed succesfully.
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<li><tt>TQNetworkProtocol::StFailed</tt> - The operation has been processed but an error occurred.
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<li><tt>TQNetworkProtocol::StStopped</tt> - The operation has been processed but has been
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stopped before it finished, and is waiting to be processed.
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</ul><p>
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQNetworkProtocol"></a>TQNetworkProtocol::TQNetworkProtocol ()
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</h3>
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Constructor of the network protocol base class. Does some
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initialization and connecting of signals and slots.
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<h3 class=fn><a name="~TQNetworkProtocol"></a>TQNetworkProtocol::~TQNetworkProtocol ()<tt> [virtual]</tt>
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</h3>
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Destructor.
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<h3 class=fn>void <a name="addOperation"></a>TQNetworkProtocol::addOperation ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual]</tt>
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</h3>
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Adds the operation <em>op</em> to the operation queue. The operation
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will be processed as soon as possible. This method returns
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immediately.
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<h3 class=fn>bool <a name="autoDelete"></a>TQNetworkProtocol::autoDelete () const
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</h3>
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Returns TRUE if auto-deleting is enabled; otherwise returns FALSE.
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<p> <p>See also <a href="#setAutoDelete">TQNetworkProtocol::setAutoDelete</a>().
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<h3 class=fn>bool <a name="checkConnection"></a>TQNetworkProtocol::checkConnection ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual protected]</tt>
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</h3>
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For processing operations the network protocol base class calls
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this method quite often. This should be reimplemented by new
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network protocols. It should return TRUE if the connection is OK
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(open); otherwise it should return FALSE. If the connection is not
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open the protocol should open it.
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<p> If the connection can't be opened (e.g. because you already tried
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but the host couldn't be found), set the state of <em>op</em> to
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TQNetworkProtocol::StFailed and emit the <a href="#finished">finished</a>() signal with
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this <a href="tqnetworkoperation.html">TQNetworkOperation</a> as argument.
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<p> <em>op</em> is the operation that needs an open connection.
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<p>Example: <a href="networkprotocol-example.html#x673">network/networkprotocol/nntp.cpp</a>.
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<h3 class=fn>void <a name="clearOperationQueue"></a>TQNetworkProtocol::clearOperationQueue ()<tt> [virtual]</tt>
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</h3>
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Clears the operation queue.
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<h3 class=fn>void <a name="connectionStateChanged"></a>TQNetworkProtocol::connectionStateChanged ( int state, const <a href="tqstring.html">TQString</a> & data )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted whenever the state of the connection of the
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network protocol is changed. <em>state</em> describes the new state,
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which is one of, <a href="#ConnectionState-enum">ConHostFound</a>, <a href="#ConnectionState-enum">ConConnected</a> or <a href="#ConnectionState-enum">ConClosed</a>.
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<em>data</em> is a message text.
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<h3 class=fn>void <a name="createdDirectory"></a>TQNetworkProtocol::createdDirectory ( const <a href="tqurlinfo.html">TQUrlInfo</a> & i, <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted when mkdir() has been succesful and the
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directory has been created. <em>i</em> holds the information about the
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new directory. <em>op</em> is the pointer to the operation object which
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contains all the information about the operation, including the
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state, etc. Using op->arg( 0 ), you can get the file name of the
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new directory.
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<p> When a protocol emits this signal, TQNetworkProtocol is smart
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enough to let the <a href="tqurloperator.html">TQUrlOperator</a>, which is used by the network
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protocol, emit its corresponding signal.
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<h3 class=fn>void <a name="data"></a>TQNetworkProtocol::data ( const <a href="tqbytearray.html">TQByteArray</a> & data, <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted when new <em>data</em> has been received after
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calling get() or put(). <em>op</em> holds the name of the file from
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which data is retrieved or uploaded in its first argument, and the
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(raw) data in its second argument. You can get them with
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op->arg( 0 ) and op->rawArg( 1 ). <em>op</em> is the pointer to the
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operation object, which contains all the information about the
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operation, including the state, etc.
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<p> When a protocol emits this signal, TQNetworkProtocol is smart
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enough to let the <a href="tqurloperator.html">TQUrlOperator</a> (which is used by the network
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protocol) emit its corresponding signal.
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<h3 class=fn>void <a name="dataTransferProgress"></a>TQNetworkProtocol::dataTransferProgress ( int bytesDone, int bytesTotal, <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted during the transfer of data (using put() or
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get()). <em>bytesDone</em> is how many bytes of <em>bytesTotal</em> have been
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transferred. <em>bytesTotal</em> may be -1, which means that the total
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number of bytes is not known. <em>op</em> is the pointer to the
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operation object which contains all the information about the
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operation, including the state, etc.
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<p> When a protocol emits this signal, TQNetworkProtocol is smart
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enough to let the <a href="tqurloperator.html">TQUrlOperator</a>, which is used by the network
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protocol, emit its corresponding signal.
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<h3 class=fn>void <a name="finished"></a>TQNetworkProtocol::finished ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted when an operation finishes. This signal is
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always emitted, for both success and failure. <em>op</em> is the pointer
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to the operation object which contains all the information about
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the operation, including the state, etc. Check the state and error
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code of the operation object to determine whether or not the
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operation was successful.
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<p> When a protocol emits this signal, TQNetworkProtocol is smart
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enough to let the <a href="tqurloperator.html">TQUrlOperator</a>, which is used by the network
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protocol, emit its corresponding signal.
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<h3 class=fn><a href="tqnetworkprotocol.html">TQNetworkProtocol</a> * <a name="getNetworkProtocol"></a>TQNetworkProtocol::getNetworkProtocol ( const <a href="tqstring.html">TQString</a> & protocol )<tt> [static]</tt>
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</h3>
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Static method to get a new instance of the network protocol <em>protocol</em>. For example, if you need to do some FTP operations, do
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the following:
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<pre>
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<a href="tqftp.html">TQFtp</a> *ftp = TQNetworkProtocol::<a href="#getNetworkProtocol">getNetworkProtocol</a>( "ftp" );
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</pre>
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This returns a pointer to a new instance of an ftp implementation
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or null if no protocol for ftp was registered. The ownership of
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the pointer is transferred to you, so you must delete it if you
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don't need it anymore.
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<p> Normally you should not work directly with network protocols, so
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you will not need to call this method yourself. Instead, use
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<a href="tqurloperator.html">TQUrlOperator</a>, which makes working with network protocols much more
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convenient.
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<p> <p>See also <a href="tqurloperator.html">TQUrlOperator</a>.
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<h3 class=fn>bool <a name="hasOnlyLocalFileSystem"></a>TQNetworkProtocol::hasOnlyLocalFileSystem ()<tt> [static]</tt>
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</h3>
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Returns TRUE if the only protocol registered is for working on the
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local filesystem; returns FALSE if other network protocols are
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also registered.
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<h3 class=fn>void <a name="itemChanged"></a>TQNetworkProtocol::itemChanged ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
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</h3>
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<p> This signal is emitted whenever a file which is a child of this
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URL has been changed, e.g. by successfully calling rename(). <em>op</em>
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holds the original and the new file names in the first and second
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arguments, accessible with op->arg( 0 ) and op->arg( 1 )
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respectively. <em>op</em> is the pointer to the operation object which
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contains all the information about the operation, including the
|
|
state, etc.
|
|
<p> When a protocol emits this signal, TQNetworkProtocol is smart
|
|
enough to let the <a href="tqurloperator.html">TQUrlOperator</a>, which is used by the network
|
|
protocol, emit its corresponding signal.
|
|
|
|
<h3 class=fn>void <a name="newChild"></a>TQNetworkProtocol::newChild ( const <a href="tqurlinfo.html">TQUrlInfo</a> & i, <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted if a new child (file) has been read.
|
|
TQNetworkProtocol automatically connects it to a slot which creates
|
|
a list of <a href="tqurlinfo.html">TQUrlInfo</a> objects (with just one TQUrlInfo <em>i</em>) and emits
|
|
the <a href="#newChildren">newChildren</a>() signal with this list. <em>op</em> is the pointer to
|
|
the operation object which contains all the information about the
|
|
operation that has finished, including the state, etc.
|
|
<p> This is just a convenience signal useful for implementing your own
|
|
network protocol. In all other cases connect to the newChildren()
|
|
signal with its list of TQUrlInfo objects.
|
|
|
|
<h3 class=fn>void <a name="newChildren"></a>TQNetworkProtocol::newChildren ( const <a href="tqvaluelist.html">TQValueList</a><TQUrlInfo> & i, <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted after listChildren() was called and new
|
|
children (files) have been read from the list of files. <em>i</em> holds
|
|
the information about the new children. <em>op</em> is the pointer to
|
|
the operation object which contains all the information about the
|
|
operation, including the state, etc.
|
|
<p> When a protocol emits this signal, TQNetworkProtocol is smart
|
|
enough to let the <a href="tqurloperator.html">TQUrlOperator</a>, which is used by the network
|
|
protocol, emit its corresponding signal.
|
|
<p> When implementing your own network protocol and reading children,
|
|
you usually don't read one child at once, but rather a list of
|
|
them. That's why this signal takes a list of <a href="tqurlinfo.html">TQUrlInfo</a> objects. If
|
|
you prefer to read just one child at a time you can use the
|
|
convenience signal <a href="#newChild">newChild</a>(), which takes a single TQUrlInfo
|
|
object.
|
|
|
|
<h3 class=fn>void <a name="operationGet"></a>TQNetworkProtocol::operationGet ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
When implementing a new network protocol, this method should be
|
|
reimplemented if the protocol supports getting data; this method
|
|
should then process the <a href="tqnetworkoperation.html">TQNetworkOperation</a>.
|
|
<p> When you reimplement this method it's very important that you emit
|
|
the correct signals at the correct time (especially the <a href="#finished">finished</a>()
|
|
signal after processing an operation). Take a look at the <a href="network.html">TQt Network Documentation</a> which describes in
|
|
detail how to reimplement this method. You may also want to look
|
|
at the example implementation in
|
|
examples/network/networkprotocol/nntp.cpp.
|
|
<p> <em>op</em> is the pointer to the operation object which contains all
|
|
the information on the operation that has finished, including the
|
|
state, etc.
|
|
|
|
<p>Example: <a href="networkprotocol-example.html#x674">network/networkprotocol/nntp.cpp</a>.
|
|
<h3 class=fn><a href="tqnetworkoperation.html">TQNetworkOperation</a> * <a name="operationInProgress"></a>TQNetworkProtocol::operationInProgress () const
|
|
</h3>
|
|
Returns the operation, which is being processed, or 0 of no
|
|
operation is being processed at the moment.
|
|
|
|
<h3 class=fn>void <a name="operationListChildren"></a>TQNetworkProtocol::operationListChildren ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
When implementing a new network protocol, this method should be
|
|
reimplemented if the protocol supports listing children (files);
|
|
this method should then process this <a href="tqnetworkoperation.html">TQNetworkOperation</a>.
|
|
<p> When you reimplement this method it's very important that you emit
|
|
the correct signals at the correct time (especially the <a href="#finished">finished</a>()
|
|
signal after processing an operation). Take a look at the <a href="network.html">TQt Network Documentation</a> which describes in
|
|
detail how to reimplement this method. You may also want to look
|
|
at the example implementation in
|
|
examples/network/networkprotocol/nntp.cpp.
|
|
<p> <em>op</em> is the pointer to the operation object which contains all
|
|
the information on the operation that has finished, including the
|
|
state, etc.
|
|
|
|
<p>Example: <a href="networkprotocol-example.html#x675">network/networkprotocol/nntp.cpp</a>.
|
|
<h3 class=fn>void <a name="operationMkDir"></a>TQNetworkProtocol::operationMkDir ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
When implementing a new network protocol, this method should be
|
|
reimplemented if the protocol supports making directories; this
|
|
method should then process this <a href="tqnetworkoperation.html">TQNetworkOperation</a>.
|
|
<p> When you reimplement this method it's very important that you emit
|
|
the correct signals at the correct time (especially the <a href="#finished">finished</a>()
|
|
signal after processing an operation). Take a look at the <a href="network.html">TQt Network Documentation</a> which describes in
|
|
detail how to reimplement this method. You may also want to look
|
|
at the example implementation in
|
|
examples/network/networkprotocol/nntp.cpp.
|
|
<p> <em>op</em> is the pointer to the operation object which contains all
|
|
the information on the operation that has finished, including the
|
|
state, etc.
|
|
|
|
<h3 class=fn>void <a name="operationPut"></a>TQNetworkProtocol::operationPut ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
When implementing a new network protocol, this method should be
|
|
reimplemented if the protocol supports putting (uploading) data;
|
|
this method should then process the <a href="tqnetworkoperation.html">TQNetworkOperation</a>.
|
|
<p> When you reimplement this method it's very important that you emit
|
|
the correct signals at the correct time (especially the <a href="#finished">finished</a>()
|
|
signal after processing an operation). Take a look at the <a href="network.html">TQt Network Documentation</a> which describes in
|
|
detail how to reimplement this method. You may also want to look
|
|
at the example implementation in
|
|
examples/network/networkprotocol/nntp.cpp.
|
|
<p> <em>op</em> is the pointer to the operation object which contains all
|
|
the information on the operation that has finished, including the
|
|
state, etc.
|
|
|
|
<h3 class=fn>void <a name="operationRemove"></a>TQNetworkProtocol::operationRemove ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
When implementing a new network protocol, this method should be
|
|
reimplemented if the protocol supports removing children (files);
|
|
this method should then process this <a href="tqnetworkoperation.html">TQNetworkOperation</a>.
|
|
<p> When you reimplement this method it's very important that you emit
|
|
the correct signals at the correct time (especially the <a href="#finished">finished</a>()
|
|
signal after processing an operation). Take a look at the <a href="network.html">TQt Network Documentation</a> which is describes
|
|
in detail how to reimplement this method. You may also want to
|
|
look at the example implementation in
|
|
examples/network/networkprotocol/nntp.cpp.
|
|
<p> <em>op</em> is the pointer to the operation object which contains all
|
|
the information on the operation that has finished, including the
|
|
state, etc.
|
|
|
|
<h3 class=fn>void <a name="operationRename"></a>TQNetworkProtocol::operationRename ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
When implementing a new newtork protocol, this method should be
|
|
reimplemented if the protocol supports renaming children (files);
|
|
this method should then process this <a href="tqnetworkoperation.html">TQNetworkOperation</a>.
|
|
<p> When you reimplement this method it's very important that you emit
|
|
the correct signals at the correct time (especially the <a href="#finished">finished</a>()
|
|
signal after processing an operation). Take a look at the <a href="network.html">TQt Network Documentation</a> which describes in
|
|
detail how to reimplement this method. You may also want to look
|
|
at the example implementation in
|
|
examples/network/networkprotocol/nntp.cpp.
|
|
<p> <em>op</em> is the pointer to the operation object which contains all
|
|
the information on the operation that has finished, including the
|
|
state, etc.
|
|
|
|
<h3 class=fn>void <a name="registerNetworkProtocol"></a>TQNetworkProtocol::registerNetworkProtocol ( const <a href="tqstring.html">TQString</a> & protocol, TQNetworkProtocolFactoryBase * protocolFactory )<tt> [static]</tt>
|
|
</h3>
|
|
Static method to register a network protocol for TQt. For example,
|
|
if you have an implementation of NNTP (called Nntp) which is
|
|
derived from TQNetworkProtocol, call:
|
|
<pre>
|
|
TQNetworkProtocol::<a href="#registerNetworkProtocol">registerNetworkProtocol</a>( "nntp", new TQNetworkProtocolFactory<Nntp> );
|
|
</pre>
|
|
|
|
after which your implementation is registered for future nntp
|
|
operations.
|
|
<p> The name of the protocol is given in <em>protocol</em> and a pointer to
|
|
the protocol factory is given in <em>protocolFactory</em>.
|
|
|
|
<h3 class=fn>void <a name="removed"></a>TQNetworkProtocol::removed ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when remove() has been succesful and the
|
|
file has been removed. <em>op</em> holds the file name of the removed
|
|
file in the first argument, accessible with op->arg( 0 ). <em>op</em> is
|
|
the pointer to the operation object which contains all the
|
|
information about the operation, including the state, etc.
|
|
<p> When a protocol emits this signal, TQNetworkProtocol is smart
|
|
enough to let the <a href="tqurloperator.html">TQUrlOperator</a>, which is used by the network
|
|
protocol, emit its corresponding signal.
|
|
|
|
<h3 class=fn>void <a name="setAutoDelete"></a>TQNetworkProtocol::setAutoDelete ( bool b, int i = 10000 )<tt> [virtual]</tt>
|
|
</h3>
|
|
Because it's sometimes hard to take care of removing network
|
|
protocol instances, TQNetworkProtocol provides an auto-delete
|
|
mechanism. If you set <em>b</em> to TRUE, the network protocol instance
|
|
is removed after it has been inactive for <em>i</em> milliseconds (i.e.
|
|
<em>i</em> milliseconds after the last operation has been processed).
|
|
If you set <em>b</em> to FALSE the auto-delete mechanism is switched
|
|
off.
|
|
<p> If you switch on auto-delete, the TQNetworkProtocol also deletes
|
|
its <a href="tqurloperator.html">TQUrlOperator</a>.
|
|
|
|
<h3 class=fn>void <a name="setUrl"></a>TQNetworkProtocol::setUrl ( <a href="tqurloperator.html">TQUrlOperator</a> * u )<tt> [virtual]</tt>
|
|
</h3>
|
|
Sets the <a href="tqurloperator.html">TQUrlOperator</a>, on which the protocol works, to <em>u</em>.
|
|
<p> <p>See also <a href="tqurloperator.html">TQUrlOperator</a>.
|
|
|
|
<h3 class=fn>void <a name="start"></a>TQNetworkProtocol::start ( <a href="tqnetworkoperation.html">TQNetworkOperation</a> * op )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> Some operations (such as listChildren()) emit this signal when
|
|
they start processing the operation. <em>op</em> is the pointer to the
|
|
operation object which contains all the information about the
|
|
operation, including the state, etc.
|
|
<p> When a protocol emits this signal, TQNetworkProtocol is smart
|
|
enough to let the <a href="tqurloperator.html">TQUrlOperator</a>, which is used by the network
|
|
protocol, emit its corresponding signal.
|
|
|
|
<h3 class=fn>void <a name="stop"></a>TQNetworkProtocol::stop ()<tt> [virtual]</tt>
|
|
</h3>
|
|
Stops the current operation that is being processed and clears all
|
|
waiting operations.
|
|
|
|
<h3 class=fn>int <a name="supportedOperations"></a>TQNetworkProtocol::supportedOperations () const<tt> [virtual]</tt>
|
|
</h3>
|
|
Returns an int that is OR'd together using the enum values of
|
|
<a href="#Operation-enum">TQNetworkProtocol::Operation</a>, which describes which operations
|
|
are supported by the network protocol. Should be reimplemented by
|
|
new network protocols.
|
|
|
|
<p>Example: <a href="networkprotocol-example.html#x676">network/networkprotocol/nntp.cpp</a>.
|
|
<h3 class=fn><a href="tqurloperator.html">TQUrlOperator</a> * <a name="url"></a>TQNetworkProtocol::url () const
|
|
</h3>
|
|
Returns the <a href="tqurloperator.html">TQUrlOperator</a> on which the protocol works.
|
|
|
|
<!-- eof -->
|
|
<hr><p>
|
|
This file is part of the <a href="index.html">TQt toolkit</a>.
|
|
Copyright © 1995-2007
|
|
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|