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| 31 | </td>
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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QNetworkOperation Class Reference<br><small>[<a href="network.html">network module</a>]</small></h1>
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| 33 |
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| 34 | <p>The QNetworkOperation class provides common operations for network protocols.
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| 35 | <a href="#details">More...</a>
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| 36 | <p><tt>#include <<a href="qnetworkprotocol-h.html">qnetworkprotocol.h</a>></tt>
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| 37 | <p>Inherits <a href="qobject.html">QObject</a>.
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| 38 | <p><a href="qnetworkoperation-members.html">List of all member functions.</a>
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| 39 | <h2>Public Members</h2>
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| 40 | <ul>
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| 41 | <li class=fn><a href="#QNetworkOperation"><b>QNetworkOperation</b></a> ( QNetworkProtocol::Operation operation, const QString & arg0, const QString & arg1, const QString & arg2 )</li>
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| 42 | <li class=fn><a href="#QNetworkOperation-2"><b>QNetworkOperation</b></a> ( QNetworkProtocol::Operation operation, const QByteArray & arg0, const QByteArray & arg1, const QByteArray & arg2 )</li>
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| 43 | <li class=fn><a href="#~QNetworkOperation"><b>~QNetworkOperation</b></a> ()</li>
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| 44 | <li class=fn>void <a href="#setState"><b>setState</b></a> ( QNetworkProtocol::State state )</li>
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| 45 | <li class=fn>void <a href="#setProtocolDetail"><b>setProtocolDetail</b></a> ( const QString & detail )</li>
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| 46 | <li class=fn>void <a href="#setErrorCode"><b>setErrorCode</b></a> ( int ec )</li>
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| 47 | <li class=fn>void <a href="#setArg"><b>setArg</b></a> ( int num, const QString & arg )</li>
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| 48 | <li class=fn>void <a href="#setRawArg"><b>setRawArg</b></a> ( int num, const QByteArray & arg )</li>
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| 49 | <li class=fn>QNetworkProtocol::Operation <a href="#operation"><b>operation</b></a> () const</li>
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| 50 | <li class=fn>QNetworkProtocol::State <a href="#state"><b>state</b></a> () const</li>
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| 51 | <li class=fn>QString <a href="#arg"><b>arg</b></a> ( int num ) const</li>
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| 52 | <li class=fn>QByteArray <a href="#rawArg"><b>rawArg</b></a> ( int num ) const</li>
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| 53 | <li class=fn>QString <a href="#protocolDetail"><b>protocolDetail</b></a> () const</li>
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| 54 | <li class=fn>int <a href="#errorCode"><b>errorCode</b></a> () const</li>
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| 55 | <li class=fn>void <a href="#free"><b>free</b></a> ()</li>
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| 56 | </ul>
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| 57 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 58 |
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| 59 |
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| 60 | <p> The QNetworkOperation class provides common operations for network protocols.
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| 61 |
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| 62 | <p>
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| 63 |
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| 64 | <p> An object is created to describe the operation and the current
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| 65 | state for each operation that a network protocol should process.
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| 66 | <p> For a detailed description of the Qt Network Architecture and how
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| 67 | to implement and use network protocols in Qt, see the <a href="network.html">Qt Network Documentation</a>.
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| 68 | <p> <p>See also <a href="qnetworkprotocol.html">QNetworkProtocol</a> and <a href="io.html">Input/Output and Networking</a>.
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| 69 |
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| 70 | <hr><h2>Member Function Documentation</h2>
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| 71 | <h3 class=fn><a name="QNetworkOperation"></a>QNetworkOperation::QNetworkOperation ( <a href="qnetworkprotocol.html#Operation-enum">QNetworkProtocol::Operation</a> operation, const <a href="qstring.html">QString</a> & arg0, const <a href="qstring.html">QString</a> & arg1, const <a href="qstring.html">QString</a> & arg2 )
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| 72 | </h3>
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| 73 | Constructs a network operation object. <em>operation</em> is the type of
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| 74 | the operation, and <em>arg0</em>, <em>arg1</em> and <em>arg2</em> are the first
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| 75 | three arguments of the operation. The state is initialized to
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| 76 | QNetworkProtocol::StWaiting.
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| 77 | <p> <p>See also <a href="qnetworkprotocol.html#Operation-enum">QNetworkProtocol::Operation</a> and <a href="qnetworkprotocol.html#State-enum">QNetworkProtocol::State</a>.
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| 78 |
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| 79 | <h3 class=fn><a name="QNetworkOperation-2"></a>QNetworkOperation::QNetworkOperation ( <a href="qnetworkprotocol.html#Operation-enum">QNetworkProtocol::Operation</a> operation, const <a href="qbytearray.html">QByteArray</a> & arg0, const <a href="qbytearray.html">QByteArray</a> & arg1, const <a href="qbytearray.html">QByteArray</a> & arg2 )
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| 80 | </h3>
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| 81 | Constructs a network operation object. <em>operation</em> is the type of
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| 82 | the operation, and <em>arg0</em>, <em>arg1</em> and <em>arg2</em> are the first
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| 83 | three raw data arguments of the operation. The state is
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| 84 | initialized to QNetworkProtocol::StWaiting.
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| 85 | <p> <p>See also <a href="qnetworkprotocol.html#Operation-enum">QNetworkProtocol::Operation</a> and <a href="qnetworkprotocol.html#State-enum">QNetworkProtocol::State</a>.
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| 86 |
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| 87 | <h3 class=fn><a name="~QNetworkOperation"></a>QNetworkOperation::~QNetworkOperation ()
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| 88 | </h3>
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| 89 | Destructor.
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| 90 |
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| 91 | <h3 class=fn><a href="qstring.html">QString</a> <a name="arg"></a>QNetworkOperation::arg ( int num ) const
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| 92 | </h3>
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| 93 | Returns the operation's <em>num</em>-th argument. If this argument was
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| 94 | not already set, an empty string is returned.
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| 95 |
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| 96 | <p>Example: <a href="networkprotocol-example.html#x672">network/networkprotocol/nntp.cpp</a>.
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| 97 | <h3 class=fn>int <a name="errorCode"></a>QNetworkOperation::errorCode () const
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| 98 | </h3>
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| 99 | Returns the error code for the last error that occurred.
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| 100 |
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| 101 | <h3 class=fn>void <a name="free"></a>QNetworkOperation::free ()
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| 102 | </h3>
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| 103 | Sets this object to delete itself when it hasn't been used for one
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| 104 | second.
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| 105 | <p> Because QNetworkOperation pointers are passed around a lot the
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| 106 | <a href="qnetworkprotocol.html">QNetworkProtocol</a> generally does not have enough knowledge to
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| 107 | delete these at the correct time. If a QNetworkProtocol doesn't
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| 108 | need an operation any more it will call this function instead.
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| 109 | <p> Note: you should never need to call the method yourself.
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| 110 |
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| 111 | <h3 class=fn><a href="qnetworkprotocol.html#Operation-enum">QNetworkProtocol::Operation</a> <a name="operation"></a>QNetworkOperation::operation () const
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| 112 | </h3>
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| 113 | Returns the type of the operation.
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| 114 |
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| 115 | <h3 class=fn><a href="qstring.html">QString</a> <a name="protocolDetail"></a>QNetworkOperation::protocolDetail () const
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| 116 | </h3>
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| 117 | Returns a detailed error message for the last error. This must
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| 118 | have been set using <a href="#setProtocolDetail">setProtocolDetail</a>().
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| 119 |
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| 120 | <h3 class=fn><a href="qbytearray.html">QByteArray</a> <a name="rawArg"></a>QNetworkOperation::rawArg ( int num ) const
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| 121 | </h3>
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| 122 | Returns the operation's <em>num</em>-th raw data argument. If this
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| 123 | argument was not already set, an empty bytearray is returned.
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| 124 |
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| 125 | <h3 class=fn>void <a name="setArg"></a>QNetworkOperation::setArg ( int num, const <a href="qstring.html">QString</a> & arg )
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| 126 | </h3>
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| 127 | Sets the network operation's <em>num</em>-th argument to <em>arg</em>.
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| 128 |
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| 129 | <h3 class=fn>void <a name="setErrorCode"></a>QNetworkOperation::setErrorCode ( int ec )
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| 130 | </h3>
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| 131 | Sets the error code to <em>ec</em>.
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| 132 | <p> If the operation failed, the protocol should set an error code to
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| 133 | describe the error in more detail. If possible, one of the error
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| 134 | codes defined in <a href="qnetworkprotocol.html">QNetworkProtocol</a> should be used.
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| 135 | <p> <p>See also <a href="#setProtocolDetail">setProtocolDetail</a>() and <a href="qnetworkprotocol.html#Error-enum">QNetworkProtocol::Error</a>.
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| 136 |
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| 137 | <h3 class=fn>void <a name="setProtocolDetail"></a>QNetworkOperation::setProtocolDetail ( const <a href="qstring.html">QString</a> & detail )
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| 138 | </h3>
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| 139 | If the operation failed, the error message can be specified as <em>detail</em>.
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| 140 |
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| 141 | <h3 class=fn>void <a name="setRawArg"></a>QNetworkOperation::setRawArg ( int num, const <a href="qbytearray.html">QByteArray</a> & arg )
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| 142 | </h3>
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| 143 | Sets the network operation's <em>num</em>-th raw data argument to <em>arg</em>.
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| 144 |
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| 145 | <h3 class=fn>void <a name="setState"></a>QNetworkOperation::setState ( <a href="qnetworkprotocol.html#State-enum">QNetworkProtocol::State</a> state )
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| 146 | </h3>
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| 147 | Sets the <em>state</em> of the operation object. This should be done by
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| 148 | the network protocol during processing; at the end it should be
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| 149 | set to QNetworkProtocol::StDone or QNetworkProtocol::StFailed,
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| 150 | depending on success or failure.
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| 151 | <p> <p>See also <a href="qnetworkprotocol.html#State-enum">QNetworkProtocol::State</a>.
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| 152 |
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| 153 | <h3 class=fn><a href="qnetworkprotocol.html#State-enum">QNetworkProtocol::State</a> <a name="state"></a>QNetworkOperation::state () const
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| 154 | </h3>
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| 155 | Returns the state of the operation. You can determine whether an
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| 156 | operation is still waiting to be processed, is being processed,
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| 157 | has been processed successfully, or failed.
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| 158 |
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| 159 | <!-- eof -->
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| 160 | <hr><p>
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| 161 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 162 | Copyright © 1995-2007
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| 163 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 164 | <table width=100% cellspacing=0 border=0><tr>
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| 165 | <td>Copyright © 2007
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| 166 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 167 | <td align=right><div align=right>Qt 3.3.8</div>
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| 168 | </table></div></address></body>
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| 169 | </html>
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