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added a small trick to cache last request of RemoteDirModel::requestDirDetails

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This commit is contained in:
csoler 2016-11-07 22:24:02 +01:00
parent befeb44f07
commit 644c41e2e7
2 changed files with 35 additions and 4 deletions
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33
retroshare-gui/src/gui/RemoteDirModel.cpp
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@ -55,6 +55,9 @@ RetroshareDirModel::RetroshareDirModel(bool mode, QObject *parent)
setSupportedDragActions(Qt::CopyAction);
#endif
treeStyle();
mLastPointer = (void*)intptr_t(0xffffffff) ;
mLastRemote = false ;
}
// QAbstractItemModel::setSupportedDragActions() was replaced by virtual QAbstractItemModel::supportedDragActions()
@ -576,9 +579,7 @@ QVariant FlatStyle_RDM::sortRole(const QModelIndex& /*index*/,const DirDetails&
QVariant RetroshareDirModel::data(const QModelIndex &index, int role) const
{
#ifdef RDM_DEBUG
std::cerr << "RetroshareDirModel::data(): " << index.internalPointer();
std::cerr << ": ";
std::cerr << std::endl;
std::cerr << "RetroshareDirModel::data(): " << index.internalPointer() << std::endl;
#endif
if (!index.isValid())
@ -963,9 +964,33 @@ void RetroshareDirModel::postMods()
bool RetroshareDirModel::requestDirDetails(void *ref, bool remote,DirDetails& d) const
{
#ifdef RDM_DEBUG
std::cerr << "RequestDirDetails:: ref = " << ref << ", remote=" << remote << std::endl;
#endif
// We look in cache and re-use the last result if the reference and remote are the same.
time_t now = time(NULL);
if(mLastPointer == ref && mLastRemote==remote && now < 2+mLastReq)
{
d = mLastDirDetails ;
return true ;
}
FileSearchFlags flags = (remote) ? RS_FILE_HINTS_REMOTE : RS_FILE_HINTS_LOCAL;
return rsFiles->RequestDirDetails(ref, d, flags) ;
if(rsFiles->RequestDirDetails(ref, d, flags))
{
mLastReq = now ;
mLastPointer = ref ;
mLastRemote = remote ;
mLastDirDetails = d;
return true;
}
return false ;
}
// const QMap<void*, DirDetailsVector>::const_iterator it = mCache.constFind(ref);
// if (it != mCache.constEnd()) {

6
retroshare-gui/src/gui/RemoteDirModel.h
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@ -151,6 +151,12 @@ class RetroshareDirModel : public QAbstractItemModel
mutable int nIndex;
mutable std::vector<RemoteIndex> indexSet;
// This material attempts to keep last request in cache, with no search cost.
mutable DirDetails mLastDirDetails ;
mutable void *mLastPointer ;
mutable bool mLastRemote ;
mutable time_t mLastReq;
};
// This class shows the classical hierarchical directory view of shared files