TQNetworkOperation Class Reference
[network module]
The TQNetworkOperation class provides common operations for network protocols.
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#include <qnetworkprotocol.h>
Inherits TQObject.
List of all member functions.
Public Members
Detailed Description
The TQNetworkOperation class provides common operations for network protocols.
An object is created to describe the operation and the current
state for each operation that a network protocol should process.
For a detailed description of the TQt Network Architecture and how
to implement and use network protocols in TQt, see the TQt Network Documentation.
See also TQNetworkProtocol and Input/Output and Networking.
Member Function Documentation
Constructs a network operation object. operation is the type of
the operation, and arg0, arg1 and arg2 are the first
three arguments of the operation. The state is initialized to
TQNetworkProtocol::StWaiting.
See also TQNetworkProtocol::Operation and TQNetworkProtocol::State.
Constructs a network operation object. operation is the type of
the operation, and arg0, arg1 and arg2 are the first
three raw data arguments of the operation. The state is
initialized to TQNetworkProtocol::StWaiting.
See also TQNetworkProtocol::Operation and TQNetworkProtocol::State.
TQNetworkOperation::~TQNetworkOperation ()
Destructor.
TQString TQNetworkOperation::arg ( int num ) const
Returns the operation's num-th argument. If this argument was
not already set, an empty string is returned.
Example: network/networkprotocol/nntp.cpp.
int TQNetworkOperation::errorCode () const
Returns the error code for the last error that occurred.
void TQNetworkOperation::free ()
Sets this object to delete itself when it hasn't been used for one
second.
Because TQNetworkOperation pointers are passed around a lot the
TQNetworkProtocol generally does not have enough knowledge to
delete these at the correct time. If a TQNetworkProtocol doesn't
need an operation any more it will call this function instead.
Note: you should never need to call the method yourself.
Returns the type of the operation.
TQString TQNetworkOperation::protocolDetail () const
Returns a detailed error message for the last error. This must
have been set using setProtocolDetail().
TQByteArray TQNetworkOperation::rawArg ( int num ) const
Returns the operation's num-th raw data argument. If this
argument was not already set, an empty bytearray is returned.
void TQNetworkOperation::setArg ( int num, const TQString & arg )
Sets the network operation's num-th argument to arg.
void TQNetworkOperation::setErrorCode ( int ec )
Sets the error code to ec.
If the operation failed, the protocol should set an error code to
describe the error in more detail. If possible, one of the error
codes defined in TQNetworkProtocol should be used.
See also setProtocolDetail() and TQNetworkProtocol::Error.
void TQNetworkOperation::setProtocolDetail ( const TQString & detail )
If the operation failed, the error message can be specified as detail.
void TQNetworkOperation::setRawArg ( int num, const TQByteArray & arg )
Sets the network operation's num-th raw data argument to arg.
Sets the state of the operation object. This should be done by
the network protocol during processing; at the end it should be
set to TQNetworkProtocol::StDone or TQNetworkProtocol::StFailed,
depending on success or failure.
See also TQNetworkProtocol::State.
Returns the state of the operation. You can determine whether an
operation is still waiting to be processed, is being processed,
has been processed successfully, or failed.
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