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The QNetworkOperation class provides common operations for network protocols.networkAn object is created to describe the operation and the current state for each operation that a network protocol should process. Más...
#include <qnetworkprotocol.h>
The QNetworkOperation class provides common operations for network protocols.
network
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 Qt Network Architecture and how to implement and use network protocols in Qt, see the Qt Network Documentation.
QNetworkOperation::QNetworkOperation | ( | QNetworkProtocol::Operation | operation, |
const QString & | arg0, | ||
const QString & | arg1, | ||
const QString & | arg2 | ||
) |
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 QNetworkProtocol::StWaiting.
QNetworkOperation::QNetworkOperation | ( | QNetworkProtocol::Operation | operation, |
const QByteArray & | arg0, | ||
const QByteArray & | arg1, | ||
const QByteArray & | arg2 | ||
) |
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 QNetworkProtocol::StWaiting.
QNetworkOperation::~QNetworkOperation | ( | ) |
Destructor.
QNetworkOperation::QNetworkOperation | ( | QNetworkProtocol::Operation | operation, |
const QString & | arg0, | ||
const QString & | arg1, | ||
const QString & | arg2 | ||
) |
QNetworkOperation::QNetworkOperation | ( | QNetworkProtocol::Operation | operation, |
const QByteArray & | arg0, | ||
const QByteArray & | arg1, | ||
const QByteArray & | arg2 | ||
) |
QNetworkOperation::~QNetworkOperation | ( | ) |
Returns the operation's {num}-th argument. If this argument was not already set, an empty string is returned.
int QNetworkOperation::errorCode | ( | ) | const |
Returns the error code for the last error that occurred.
int QNetworkOperation::errorCode | ( | ) | const |
void QNetworkOperation::free | ( | ) |
Sets this object to delete itself when it hasn't been used for one second.
Because QNetworkOperation pointers are passed around a lot the QNetworkProtocol generally does not have enough knowledge to delete these at the correct time. If a QNetworkProtocol doesn't need an operation any more it will call this function instead.
Note: you should never need to call the method yourself.
void QNetworkOperation::free | ( | ) |
QNetworkProtocol::Operation QNetworkOperation::operation | ( | ) | const |
QNetworkProtocol::Operation QNetworkOperation::operation | ( | ) | const |
Returns the type of the operation.
QString QNetworkOperation::protocolDetail | ( | ) | const |
Returns a detailed error message for the last error. This must have been set using setProtocolDetail().
QString QNetworkOperation::protocolDetail | ( | ) | const |
QByteArray QNetworkOperation::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.
QByteArray QNetworkOperation::rawArg | ( | int | num | ) | const |
Sets the network operation's {num}-th argument to arg.
void QNetworkOperation::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 QNetworkProtocol should be used.
void QNetworkOperation::setErrorCode | ( | int | ec | ) |
void QNetworkOperation::setProtocolDetail | ( | const QString & | detail | ) |
void QNetworkOperation::setProtocolDetail | ( | const QString & | detail | ) |
If the operation failed, the error message can be specified as detail.
void QNetworkOperation::setRawArg | ( | int | num, |
const QByteArray & | arg | ||
) |
void QNetworkOperation::setRawArg | ( | int | num, |
const QByteArray & | arg | ||
) |
Sets the network operation's {num}-th raw data argument to arg.
void QNetworkOperation::setState | ( | QNetworkProtocol::State | state | ) |
void QNetworkOperation::setState | ( | QNetworkProtocol::State | state | ) |
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 QNetworkProtocol::StDone or QNetworkProtocol::StFailed, depending on success or failure.
QNetworkProtocol::State QNetworkOperation::state | ( | ) | const |
QNetworkProtocol::State QNetworkOperation::state | ( | ) | const |
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.
QUrlOperator [friend] |