本文整理汇总了C++中QNetworkCacheMetaData::attributes方法的典型用法代码示例。如果您正苦于以下问题：C++ QNetworkCacheMetaData::attributes方法的具体用法？C++ QNetworkCacheMetaData::attributes怎么用？C++ QNetworkCacheMetaData::attributes使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QNetworkCacheMetaData的用法示例。
在下文中一共展示了QNetworkCacheMetaData::attributes方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: save
void QNetworkCacheMetaDataPrivate::save(QDataStream &out, const QNetworkCacheMetaData &metaData)
{
// note: if you change the contents of the meta data here
// remember to bump the cache version in qnetworkdiskcache.cpp CurrentCacheVersion
out << metaData.url();
out << metaData.expirationDate();
out << metaData.lastModified();
out << metaData.saveToDisk();
out << metaData.attributes();
out << metaData.rawHeaders();
}示例2: sendCacheContents
bool QNetworkAccessCacheBackend::sendCacheContents()
{
setCachingEnabled(false);
QAbstractNetworkCache *nc = networkCache();
if (!nc)
return false;
QNetworkCacheMetaData item = nc->metaData(url());
if (!item.isValid())
return false;
QNetworkCacheMetaData::AttributesMap attributes = item.attributes();
setAttribute(QNetworkRequest::HttpStatusCodeAttribute, attributes.value(QNetworkRequest::HttpStatusCodeAttribute));
setAttribute(QNetworkRequest::HttpReasonPhraseAttribute, attributes.value(QNetworkRequest::HttpReasonPhraseAttribute));
// set the raw headers
QNetworkCacheMetaData::RawHeaderList rawHeaders = item.rawHeaders();
QNetworkCacheMetaData::RawHeaderList::ConstIterator it = rawHeaders.constBegin(),
end = rawHeaders.constEnd();
for ( ; it != end; ++it) {
if (it->first.toLower() == "cache-control" &&
it->second.toLower().contains("must-revalidate")) {
return false;
}
setRawHeader(it->first, it->second);
}
// handle a possible redirect
QVariant redirectionTarget = attributes.value(QNetworkRequest::RedirectionTargetAttribute);
if (redirectionTarget.isValid()) {
setAttribute(QNetworkRequest::RedirectionTargetAttribute, redirectionTarget);
redirectionRequested(redirectionTarget.toUrl());
}
// signal we're open
metaDataChanged();
if (operation() == QNetworkAccessManager::GetOperation) {
QIODevice *contents = nc->data(url());
if (!contents)
return false;
contents->setParent(this);
writeDownstreamData(contents);
}
#if defined(QNETWORKACCESSCACHEBACKEND_DEBUG)
qDebug() << "Successfully sent cache:" << url();
#endif
return true;
}示例3: initCacheSaveDevice
void QNetworkReplyImplPrivate::initCacheSaveDevice()
{
Q_Q(QNetworkReplyImpl);
// The disk cache does not support partial content, so don't even try to
// save any such content into the cache.
if (q->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 206) {
cacheEnabled = false;
return;
}
// save the meta data
QNetworkCacheMetaData metaData;
metaData.setUrl(url);
metaData = backend->fetchCacheMetaData(metaData);
// save the redirect request also in the cache
QVariant redirectionTarget = q->attribute(QNetworkRequest::RedirectionTargetAttribute);
if (redirectionTarget.isValid()) {
QNetworkCacheMetaData::AttributesMap attributes = metaData.attributes();
attributes.insert(QNetworkRequest::RedirectionTargetAttribute, redirectionTarget);
metaData.setAttributes(attributes);
}
cacheSaveDevice = networkCache()->prepare(metaData);
if (!cacheSaveDevice || (cacheSaveDevice && !cacheSaveDevice->isOpen())) {
if (cacheSaveDevice && !cacheSaveDevice->isOpen())
qCritical("QNetworkReplyImpl: network cache returned a device that is not open -- "
"class %s probably needs to be fixed",
networkCache()->metaObject()->className());
networkCache()->remove(url);
cacheSaveDevice = 0;
cacheEnabled = false;
} else {
q->connect(networkCache(), SIGNAL(destroyed()), SLOT(_q_cacheDestroyed()));
}
}