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#include "synchronization.h"
#include <wx/intl.h>
#include <wx/msgdlg.h>
#include <wx/log.h>
#include "library/resources.h"
#include "algorithm.h"
#include "library/globalFunctions.h"
#include "library/statusHandler.h"
#include "library/fileHandling.h"
#include <utility>
using namespace FreeFileSync;
inline
bool getBytesToTransfer(const FileCompareLine& fileCmpLine,
int& objectsToCreate,
int& objectsToOverwrite,
int& objectsToDelete,
int& conflicts,
wxULongLong& dataToProcess)
{ //return false if nothing has to be done
objectsToCreate = 0; //always initialize variables
objectsToOverwrite = 0;
objectsToDelete = 0;
conflicts = 0;
dataToProcess = 0;
switch (FreeFileSync::getSyncOperation(fileCmpLine.cmpResult, fileCmpLine.selectedForSynchronization, fileCmpLine.direction)) //evaluate comparison result and sync direction
{
case SO_CREATE_NEW_LEFT:
dataToProcess = fileCmpLine.fileDescrRight.fileSize;
objectsToCreate = 1;
return true;
case SO_CREATE_NEW_RIGHT:
dataToProcess = fileCmpLine.fileDescrLeft.fileSize;
objectsToCreate = 1;
return true;
case SO_DELETE_LEFT:
case SO_DELETE_RIGHT:
dataToProcess = 0;
objectsToDelete = 1;
return true;
case SO_OVERWRITE_RIGHT:
dataToProcess = fileCmpLine.fileDescrLeft.fileSize;
objectsToOverwrite = 1;
return true;
case SO_OVERWRITE_LEFT:
dataToProcess = fileCmpLine.fileDescrRight.fileSize;
objectsToOverwrite = 1;
return true;
case SO_DO_NOTHING:
return false;
case SO_UNRESOLVED_CONFLICT:
conflicts = 1;
return true;
}
return false; //dummy
}
//runs at folder pair level
void calcBytesToSync(const FileComparison& fileCmp,
int& objectsToCreate,
int& objectsToOverwrite,
int& objectsToDelete,
int& conflicts,
wxULongLong& dataToProcess)
{
objectsToCreate = 0;
objectsToOverwrite = 0;
objectsToDelete = 0;
conflicts = 0;
dataToProcess = 0;
int toCreate = 0;
int toOverwrite = 0;
int toDelete = 0;
int newConflicts = 0;
wxULongLong data;
for (FileComparison::const_iterator i = fileCmp.begin(); i != fileCmp.end(); ++i)
{ //only sum up sizes of files AND directories
if (getBytesToTransfer(*i, toCreate, toOverwrite, toDelete, newConflicts, data))
{
objectsToCreate += toCreate;
objectsToOverwrite += toOverwrite;
objectsToDelete += toDelete;
conflicts += newConflicts;
dataToProcess += data;
}
}
}
//aggregate over all folder pairs
void FreeFileSync::calcTotalBytesToSync(const FolderComparison& folderCmp,
int& objectsToCreate,
int& objectsToOverwrite,
int& objectsToDelete,
int& conflicts,
wxULongLong& dataToProcess)
{
objectsToCreate = 0;
objectsToOverwrite = 0;
objectsToDelete = 0;
conflicts = 0;
dataToProcess = 0;
for (FolderComparison::const_iterator j = folderCmp.begin(); j != folderCmp.end(); ++j)
{
const FileComparison& fileCmp = j->fileCmp;
int toCreate = 0;
int toOverwrite = 0;
int toDelete = 0;
int newConflics = 0;
wxULongLong data;
calcBytesToSync(fileCmp, toCreate, toOverwrite, toDelete, newConflics, data);
objectsToCreate += toCreate;
objectsToOverwrite += toOverwrite;
objectsToDelete += toDelete;
conflicts += newConflics;
dataToProcess += data;
}
}
template <bool recyclerUsed>
std::pair<wxLongLong, wxLongLong> spaceNeededSub(const FileComparison& fileCmp)
{
wxLongLong spaceNeededLeft;
wxLongLong spaceNeededRight;
for (FileComparison::const_iterator i = fileCmp.begin(); i != fileCmp.end(); ++i)
{
if (i->selectedForSynchronization) //do not add filtered entries
{
//get data to process
switch (i->direction)
{
case SYNC_DIR_LEFT: //copy from right to left
if (!recyclerUsed)
spaceNeededLeft -= globalFunctions::convertToSigned(i->fileDescrLeft.fileSize);
spaceNeededLeft += globalFunctions::convertToSigned(i->fileDescrRight.fileSize);
break;
case SYNC_DIR_RIGHT: //copy from left to right
if (!recyclerUsed)
spaceNeededRight -= globalFunctions::convertToSigned(i->fileDescrRight.fileSize);
spaceNeededRight += globalFunctions::convertToSigned(i->fileDescrLeft.fileSize);
break;
case SYNC_DIR_NONE:
case SYNC_UNRESOLVED_CONFLICT:
break;
}
}
}
return std::pair<wxLongLong, wxLongLong>(spaceNeededLeft, spaceNeededRight);
}
std::pair<wxLongLong, wxLongLong> freeDiskSpaceNeeded(const FileComparison& fileCmp, const bool recyclerUsed)
{
if (recyclerUsed)
return spaceNeededSub<true>(fileCmp);
else
return spaceNeededSub<false>(fileCmp);
}
bool unresolvedConflictsExisting(const FolderComparison& folderCmp)
{
for (FolderComparison::const_iterator j = folderCmp.begin(); j != folderCmp.end(); ++j)
{
const FileComparison& fileCmp = j->fileCmp;
for (FileComparison::const_iterator i = fileCmp.begin(); i != fileCmp.end(); ++i)
if (i->direction == SYNC_UNRESOLVED_CONFLICT)
return true;
}
return false;
}
bool FreeFileSync::synchronizationNeeded(const FolderComparison& folderCmp)
{
int objectsToCreate = 0;
int objectsToOverwrite = 0;
int objectsToDelete = 0;
int conflicts = 0;
wxULongLong dataToProcess;
FreeFileSync::calcTotalBytesToSync(folderCmp,
objectsToCreate,
objectsToOverwrite,
objectsToDelete,
conflicts,
dataToProcess);
return objectsToCreate + objectsToOverwrite + objectsToDelete + conflicts != 0;
}
//test if more then 50% of files will be deleted/overwritten
bool significantDifferenceDetected(const FileComparison& fileCmp)
{
int objectsToCreate = 0;
int objectsToOverwrite = 0;
int objectsToDelete = 0;
int conflicts = 0;
wxULongLong dataToProcess;
calcBytesToSync(fileCmp,
objectsToCreate,
objectsToOverwrite,
objectsToDelete,
conflicts,
dataToProcess);
const int changedFiles = objectsToCreate + objectsToOverwrite + objectsToDelete + conflicts; //include objectsToCreate also!
return changedFiles >= 10 && changedFiles > 0.5 * fileCmp.size();
}
SyncOperation FreeFileSync::getSyncOperation( //evaluate comparison result and sync direction
const CompareFilesResult cmpResult,
const bool selectedForSynchronization,
const SyncDirection syncDir)
{
if (!selectedForSynchronization) return SO_DO_NOTHING;
switch (cmpResult)
{
case FILE_LEFT_SIDE_ONLY:
switch (syncDir)
{
case SYNC_DIR_LEFT:
return SO_DELETE_LEFT; //delete files on left
case SYNC_DIR_RIGHT:
return SO_CREATE_NEW_RIGHT; //copy files to right
case SYNC_DIR_NONE:
return SO_DO_NOTHING;
case SYNC_UNRESOLVED_CONFLICT:
assert(false);
}
break;
case FILE_RIGHT_SIDE_ONLY:
switch (syncDir)
{
case SYNC_DIR_LEFT:
return SO_CREATE_NEW_LEFT; //copy files to left
case SYNC_DIR_RIGHT:
return SO_DELETE_RIGHT; //delete files on right
case SYNC_DIR_NONE:
return SO_DO_NOTHING;
case SYNC_UNRESOLVED_CONFLICT:
assert(false);
}
break;
case FILE_LEFT_NEWER:
case FILE_RIGHT_NEWER:
case FILE_DIFFERENT:
case FILE_CONFLICT:
switch (syncDir)
{
case SYNC_DIR_LEFT:
return SO_OVERWRITE_LEFT; //copy from right to left
case SYNC_DIR_RIGHT:
return SO_OVERWRITE_RIGHT; //copy from left to right
case SYNC_DIR_NONE:
return SO_DO_NOTHING;
case SYNC_UNRESOLVED_CONFLICT:
return SO_UNRESOLVED_CONFLICT;
}
break;
case FILE_EQUAL:
assert(syncDir == SYNC_DIR_NONE);
return SO_DO_NOTHING;
}
return SO_DO_NOTHING; //dummy
}
const wxBitmap& FreeFileSync::getSyncOpImage(const CompareFilesResult cmpResult,
const bool selectedForSynchronization,
const SyncDirection syncDir)
{
switch (getSyncOperation(cmpResult, selectedForSynchronization, syncDir)) //evaluate comparison result and sync direction
{
case SO_CREATE_NEW_LEFT:
return *GlobalResources::getInstance().bitmapCreateLeftSmall;
case SO_CREATE_NEW_RIGHT:
return *GlobalResources::getInstance().bitmapCreateRightSmall;
case SO_DELETE_LEFT:
return *GlobalResources::getInstance().bitmapDeleteLeftSmall;
case SO_DELETE_RIGHT:
return *GlobalResources::getInstance().bitmapDeleteRightSmall;
case SO_OVERWRITE_RIGHT:
return *GlobalResources::getInstance().bitmapSyncDirRightSmall;
case SO_OVERWRITE_LEFT:
return *GlobalResources::getInstance().bitmapSyncDirLeftSmall;
case SO_DO_NOTHING:
return *GlobalResources::getInstance().bitmapSyncDirNoneSmall;
case SO_UNRESOLVED_CONFLICT:
return *GlobalResources::getInstance().bitmapConflictSmall;
}
return wxNullBitmap; //dummy
}
SyncProcess::SyncProcess(const bool useRecycler,
const bool copyFileSymLinks,
const bool traverseDirSymLinks,
xmlAccess::WarningMessages& warnings,
StatusHandler* handler) :
m_useRecycleBin(useRecycler),
m_copyFileSymLinks(copyFileSymLinks),
m_traverseDirSymLinks(traverseDirSymLinks),
m_warnings(warnings),
#ifdef FFS_WIN
shadowCopyHandler(new ShadowCopy),
#endif
statusUpdater(handler),
txtCopyingFile(Zstring(_("Copying file %x to %y")).Replace(wxT("%x"), wxT("\"%x\""), false).Replace(wxT("%y"), wxT("\n\"%y\""), false)),
txtOverwritingFile(Zstring(_("Copying file %x to %y overwriting target")).Replace(wxT("%x"), wxT("\"%x\""), false).Replace(wxT("%y"), wxT("\n\"%y\""), false)),
txtCreatingFolder(Zstring(_("Creating folder %x")).Replace( wxT("%x"), wxT("\n\"%x\""), false)),
txtDeletingFile(useRecycler ? Zstring(_("Moving %x to Recycle Bin")).Replace(wxT("%x"), wxT("\"%x\""), false) :
Zstring(_("Deleting file %x")).Replace(wxT("%x"), wxT("\n\"%x\""), false)),
txtDeletingFolder(useRecycler ? Zstring(_("Moving %x to Recycle Bin")).Replace( wxT("%x"), wxT("\"%x\""), false) :
Zstring(_("Deleting folder %x")).Replace( wxT("%x"), wxT("\n\"%x\""), false)) {}
inline
bool SyncProcess::synchronizeFile(const FileCompareLine& cmpLine, const FolderPair& folderPair)
{ //return false if nothing had to be done
Zstring statusText;
Zstring target;
switch (getSyncOperation(cmpLine.cmpResult, cmpLine.selectedForSynchronization, cmpLine.direction)) //evaluate comparison result and sync direction
{
case SO_CREATE_NEW_LEFT:
target = folderPair.leftDirectory + cmpLine.fileDescrRight.relativeName.c_str();
statusText = txtCopyingFile;
statusText.Replace(wxT("%x"), cmpLine.fileDescrRight.fullName.AfterLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusText.Replace(wxT("%y"), target.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusUpdater->updateStatusText(statusText);
copyFileUpdating(cmpLine.fileDescrRight.fullName, target, cmpLine.fileDescrRight.fileSize);
return true;
case SO_CREATE_NEW_RIGHT:
target = folderPair.rightDirectory + cmpLine.fileDescrLeft.relativeName.c_str();
statusText = txtCopyingFile;
statusText.Replace(wxT("%x"), cmpLine.fileDescrLeft.fullName.AfterLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusText.Replace(wxT("%y"), target.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusUpdater->updateStatusText(statusText);
copyFileUpdating(cmpLine.fileDescrLeft.fullName, target, cmpLine.fileDescrLeft.fileSize);
return true;
case SO_DELETE_LEFT:
statusText = txtDeletingFile;
statusText.Replace(wxT("%x"), cmpLine.fileDescrLeft.fullName, false);
statusUpdater->updateStatusText(statusText);
removeFile(cmpLine.fileDescrLeft.fullName, m_useRecycleBin);
return true;
case SO_DELETE_RIGHT:
statusText = txtDeletingFile;
statusText.Replace(wxT("%x"), cmpLine.fileDescrRight.fullName, false);
statusUpdater->updateStatusText(statusText);
removeFile(cmpLine.fileDescrRight.fullName, m_useRecycleBin);
return true;
case SO_OVERWRITE_RIGHT:
statusText = txtOverwritingFile;
statusText.Replace(wxT("%x"), cmpLine.fileDescrLeft.fullName.AfterLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusText.Replace(wxT("%y"), cmpLine.fileDescrRight.fullName.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusUpdater->updateStatusText(statusText);
removeFile(cmpLine.fileDescrRight.fullName, m_useRecycleBin); //only used if switch activated by user, else file is simply deleted
copyFileUpdating(cmpLine.fileDescrLeft.fullName, cmpLine.fileDescrRight.fullName, cmpLine.fileDescrLeft.fileSize);
return true;
case SO_OVERWRITE_LEFT:
statusText = txtOverwritingFile;
statusText.Replace(wxT("%x"), cmpLine.fileDescrRight.fullName.AfterLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusText.Replace(wxT("%y"), cmpLine.fileDescrLeft.fullName.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR), false);
statusUpdater->updateStatusText(statusText);
removeFile(cmpLine.fileDescrLeft.fullName, m_useRecycleBin); //only used if switch activated by user, else file is simply deleted
copyFileUpdating(cmpLine.fileDescrRight.fullName, cmpLine.fileDescrLeft.fullName, cmpLine.fileDescrRight.fileSize);
return true;
case SO_DO_NOTHING:
case SO_UNRESOLVED_CONFLICT:
return false;
}
return false; //dummy
}
inline
bool SyncProcess::synchronizeFolder(const FileCompareLine& cmpLine, const FolderPair& folderPair)
{ //return false if nothing had to be done
Zstring statusText;
Zstring target;
//synchronize folders:
switch (getSyncOperation(cmpLine.cmpResult, cmpLine.selectedForSynchronization, cmpLine.direction)) //evaluate comparison result and sync direction
{
case SO_CREATE_NEW_LEFT:
target = folderPair.leftDirectory + cmpLine.fileDescrRight.relativeName.c_str();
statusText = txtCreatingFolder;
statusText.Replace(wxT("%x"), target, false);
statusUpdater->updateStatusText(statusText);
//some check to catch the error that directory on source has been deleted externally after "compare"...
if (!wxDirExists(cmpLine.fileDescrRight.fullName))
throw FileError(Zstring(_("Error: Source directory does not exist anymore:")) + wxT("\n\"") + cmpLine.fileDescrRight.fullName + wxT("\""));
createDirectory(target, cmpLine.fileDescrRight.fullName, !m_traverseDirSymLinks); //traverse symlinks <=> !copy symlinks
return true;
case SO_CREATE_NEW_RIGHT:
target = folderPair.rightDirectory + cmpLine.fileDescrLeft.relativeName.c_str();
statusText = txtCreatingFolder;
statusText.Replace(wxT("%x"), target, false);
statusUpdater->updateStatusText(statusText);
//some check to catch the error that directory on source has been deleted externally after "compare"...
if (!wxDirExists(cmpLine.fileDescrLeft.fullName))
throw FileError(Zstring(_("Error: Source directory does not exist anymore:")) + wxT("\n\"") + cmpLine.fileDescrLeft.fullName + wxT("\""));
createDirectory(target, cmpLine.fileDescrLeft.fullName, !m_traverseDirSymLinks); //traverse symlinks <=> !copy symlinks
return true;
case SO_DELETE_LEFT:
statusText = txtDeletingFolder;
statusText.Replace(wxT("%x"), cmpLine.fileDescrLeft.fullName, false);
statusUpdater->updateStatusText(statusText);
removeDirectory(cmpLine.fileDescrLeft.fullName, m_useRecycleBin);
return true;
case SO_DELETE_RIGHT:
statusText = txtDeletingFolder;
statusText.Replace(wxT("%x"), cmpLine.fileDescrRight.fullName, false);
statusUpdater->updateStatusText(statusText);
removeDirectory(cmpLine.fileDescrRight.fullName, m_useRecycleBin);
return true;
case SO_OVERWRITE_RIGHT:
case SO_OVERWRITE_LEFT:
case SO_UNRESOLVED_CONFLICT:
assert(false);
case SO_DO_NOTHING:
return false;
}
return false; //dummy
}
inline
bool deletionImminent(const FileCompareLine& line)
{ //test if current sync-line will result in deletion of files -> used to avoid disc space bottlenecks
if ( (line.cmpResult == FILE_LEFT_SIDE_ONLY && line.direction == SYNC_DIR_LEFT) ||
(line.cmpResult == FILE_RIGHT_SIDE_ONLY && line.direction == SYNC_DIR_RIGHT))
return true;
else
return false;
}
class RemoveAtExit //this class ensures, that the result of the method below is ALWAYS written on exit, even if exceptions are thrown!
{
public:
RemoveAtExit(FileComparison& fileCmp) :
gridToWrite(fileCmp) {}
~RemoveAtExit()
{
globalFunctions::removeRowsFromVector(rowsToDelete, gridToWrite);
}
void markRow(int nr)
{
rowsToDelete.insert(nr);
}
private:
FileComparison& gridToWrite;
std::set<int> rowsToDelete;
};
//synchronize and returns all rows that have not been synced
void SyncProcess::startSynchronizationProcess(FolderComparison& folderCmp)
{
#ifndef __WXDEBUG__
wxLogNull noWxLogs; //prevent wxWidgets logging
#endif
//inform about the total amount of data that will be processed from now on
int objectsToCreate = 0;
int objectsToOverwrite = 0;
int objectsToDelete = 0;
int conflicts = 0;
wxULongLong dataToProcess;
FreeFileSync::calcTotalBytesToSync(folderCmp,
objectsToCreate,
objectsToOverwrite,
objectsToDelete,
conflicts,
dataToProcess);
statusUpdater->initNewProcess(objectsToCreate + objectsToOverwrite + objectsToDelete, //keep at beginning so that all gui elements are initialized properly
globalFunctions::convertToSigned(dataToProcess),
StatusHandler::PROCESS_SYNCHRONIZING);
//-------------------some basic checks:------------------------------------------
//test existence of Recycle Bin
if (m_useRecycleBin && !FreeFileSync::recycleBinExists())
{
statusUpdater->reportFatalError(_("Unable to initialize Recycle Bin!"));
return; //should be obsolete!
}
for (FolderComparison::const_iterator j = folderCmp.begin(); j != folderCmp.end(); ++j)
{
const FileComparison& fileCmp = j->fileCmp;
//check if more than 50% of total number of files/dirs are to be created/overwritten/deleted
if (m_warnings.warningSignificantDifference) //test if check should be executed
{
if (significantDifferenceDetected(fileCmp))
{
bool dontShowAgain = false;
statusUpdater->reportWarning(Zstring(_("Significant difference detected:")) + wxT("\n") +
j->syncPair.leftDirectory + wxT(" <-> ") + j->syncPair.rightDirectory + wxT("\n\n") +
_("More than 50% of the total number of files will be copied or deleted!"),
dontShowAgain);
m_warnings.warningSignificantDifference = !dontShowAgain;
}
}
//check for sufficient free diskspace in left directory
if (m_warnings.warningNotEnoughDiskSpace)
{
const std::pair<wxLongLong, wxLongLong> spaceNeeded = freeDiskSpaceNeeded(fileCmp, m_useRecycleBin);
wxLongLong freeDiskSpaceLeft;
if (wxGetDiskSpace(j->syncPair.leftDirectory.c_str(), NULL, &freeDiskSpaceLeft))
{
if (freeDiskSpaceLeft < spaceNeeded.first)
{
bool dontShowAgain = false;
statusUpdater->reportWarning(Zstring(_("Not enough free disk space available in:")) + wxT("\n") +
j->syncPair.leftDirectory + wxT("\n\n") +
_("Total required free disk space:") + wxT(" ") + formatFilesizeToShortString(spaceNeeded.first).c_str(),
dontShowAgain);
m_warnings.warningNotEnoughDiskSpace = !dontShowAgain;
}
}
//check for sufficient free diskspace in right directory
if (m_warnings.warningNotEnoughDiskSpace)
{
wxLongLong freeDiskSpaceRight;
if (wxGetDiskSpace(j->syncPair.rightDirectory.c_str(), NULL, &freeDiskSpaceRight))
{
if (freeDiskSpaceRight < spaceNeeded.second)
{
bool dontShowAgain = false;
statusUpdater->reportWarning(Zstring(_("Not enough free disk space available in:")) + wxT("\n") +
j->syncPair.rightDirectory + wxT("\n\n") +
_("Total required free disk space:") + wxT(" ") + formatFilesizeToShortString(spaceNeeded.second).c_str(),
dontShowAgain);
m_warnings.warningNotEnoughDiskSpace = !dontShowAgain;
}
}
}
}
}
//check if unresolved conflicts exist
if (m_warnings.warningUnresolvedConflicts) //test if check should be executed
{
if (conflicts > 0)
{
bool dontShowAgain = false;
statusUpdater->reportWarning(_("Unresolved conflicts existing! \n\nYou can ignore conflicts and continue synchronization."),
dontShowAgain);
m_warnings.warningUnresolvedConflicts = !dontShowAgain;
}
}
//-------------------end of basic checks------------------------------------------
try
{
//loop over folder pairs
for (FolderComparison::iterator j = folderCmp.begin(); j != folderCmp.end(); ++j)
{
FileComparison& fileCmp = j->fileCmp;
//ensure that folderCmp is always written to, even if method is left via exceptions
RemoveAtExit removeRowsAtExit(fileCmp); //note: running at individual folder pair level!
const FolderPair& currentPair = j->syncPair;
// it should never happen, that a directory on left side has same name as file on right side. startCompareProcess() should take care of this
// and split into two "exists on one side only" cases
// Note: this case is not handled by this tool as this is considered to be a bug and must be solved by the user
//synchronize folders first; advantage: in case of deletions the whole folder is moved to recycle bin instead of single files
for (FileComparison::const_iterator i = fileCmp.begin(); i != fileCmp.end(); ++i)
{
if ( i->fileDescrLeft.objType == FileDescrLine::TYPE_DIRECTORY ||
i->fileDescrRight.objType == FileDescrLine::TYPE_DIRECTORY)
{
while (true)
{ //trigger display refresh
statusUpdater->requestUiRefresh();
try
{
if (synchronizeFolder(*i, currentPair))
//progress indicator update
//indicator is updated only if directory is sync'ed correctly (and if some work was done)!
statusUpdater->updateProcessedData(1, 0); //each call represents one processed file/directory
removeRowsAtExit.markRow(i - fileCmp.begin());
break;
}
catch (FileError& error)
{
ErrorHandler::Response rv = statusUpdater->reportError(error.show());
if ( rv == ErrorHandler::IGNORE_ERROR)
break;
else if (rv == ErrorHandler::RETRY)
; //continue with loop
else
assert (false);
}
}
}
}
//PERF_START;
//synchronize files:
for (int k = 0; k < 2; ++k) //loop over all files twice; reason: first delete, then copy (no sorting necessary: performance)
{
bool deleteLoop = true;
deleteLoop = k == 0; //-> first loop: delete files, second loop: copy files
for (FileComparison::const_iterator i = fileCmp.begin(); i != fileCmp.end(); ++i)
{
//skip processing of unresolved errors (do not remove row from GUI grid)
if (i->direction == SYNC_UNRESOLVED_CONFLICT && i->selectedForSynchronization)
continue;
if ( i->fileDescrLeft.objType == FileDescrLine::TYPE_FILE ||
i->fileDescrRight.objType == FileDescrLine::TYPE_FILE)
{
if ( (deleteLoop && deletionImminent(*i)) ||
(!deleteLoop && !deletionImminent(*i)))
{
while (true)
{ //trigger display refresh
statusUpdater->requestUiRefresh();
try
{
if (synchronizeFile(*i, currentPair))
{
//progress indicator update
//indicator is updated only if file is sync'ed correctly (and if some sync was done)!
int objectsToCreate = 0;
int objectsToOverwrite = 0;
int objectsToDelete = 0;
int conflictDummy = 0;
wxULongLong dataToProcess;
if (getBytesToTransfer(*i,
objectsToCreate,
objectsToOverwrite,
objectsToDelete,
conflictDummy,
dataToProcess)) //update status if some work was done (answer is always "yes" in this context)
statusUpdater->updateProcessedData(objectsToCreate + objectsToOverwrite + objectsToDelete, 0); //processed data is communicated in subfunctions!
}
removeRowsAtExit.markRow(i - fileCmp.begin());
break;
}
catch (FileError& error)
{
ErrorHandler::Response rv = statusUpdater->reportError(error.show());
if ( rv == ErrorHandler::IGNORE_ERROR)
break;
else if (rv == ErrorHandler::RETRY)
; //continue with loop
else
assert (false);
}
}
}
}
}
}
}
}
catch (const RuntimeException& theException)
{
statusUpdater->reportFatalError(theException.show().c_str());
return; //should be obsolete!
}
}
//###########################################################################################
//callback functionality for smooth progress indicators
class WhileCopying : public FreeFileSync::CopyFileCallback //callback functionality
{
public:
WhileCopying(wxLongLong& bytesTransferredLast, StatusHandler* statusHandler) :
m_bytesTransferredLast(bytesTransferredLast),
m_statusHandler(statusHandler) {}
virtual Response updateCopyStatus(const wxULongLong& totalBytesTransferred)
{
//convert to signed
const wxLongLong totalBytes = globalFunctions::convertToSigned(totalBytesTransferred);
//inform about the (differential) processed amount of data
m_statusHandler->updateProcessedData(0, totalBytes - m_bytesTransferredLast);
m_bytesTransferredLast = totalBytes;
#ifdef FFS_WIN
m_statusHandler->requestUiRefresh(false); //don't allow throwing exception within this call
if (m_statusHandler->abortIsRequested())
return CopyFileCallback::CANCEL;
#elif defined FFS_LINUX
m_statusHandler->requestUiRefresh(); //exceptions may be thrown here!
#endif
return CopyFileCallback::CONTINUE;
}
private:
wxLongLong& m_bytesTransferredLast;
StatusHandler* m_statusHandler;
};
//copy file while executing statusUpdater->requestUiRefresh() calls
void SyncProcess::copyFileUpdating(const Zstring& source, const Zstring& target, const wxULongLong& totalBytesToCpy)
{
//create folders first (see http://sourceforge.net/tracker/index.php?func=detail&aid=2628943&group_id=234430&atid=1093080)
const Zstring targetDir = target.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR);
if (!wxDirExists(targetDir.c_str()))
{
const Zstring templateDir = source.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR);
FreeFileSync::createDirectory(targetDir, templateDir, !m_traverseDirSymLinks); //might throw FileError() exception
}
//start of (possibly) long-running copy process: ensure status updates are performed regularly
wxLongLong totalBytesTransferred;
WhileCopying callback(totalBytesTransferred, statusUpdater);
try
{
#ifdef FFS_WIN
FreeFileSync::copyFile(source, target, m_copyFileSymLinks, shadowCopyHandler.get(), &callback);
#elif defined FFS_LINUX
FreeFileSync::copyFile(source, target, m_copyFileSymLinks, &callback);
#endif
}
catch (...)
{
//error situation: undo communication of processed amount of data
statusUpdater->updateProcessedData(0, totalBytesTransferred * -1 );
statusUpdater->requestUiRefresh(true); //windows build: abort if requested, don't show error message if cancelled by user!
throw;
}
//inform about the (remaining) processed amount of data
statusUpdater->updateProcessedData(0, globalFunctions::convertToSigned(totalBytesToCpy) - totalBytesTransferred);
}
/*
//##### OLD IMPLEMENTATION WITHOUT SMOOTH PROGRESS INDICATOR ################
#ifdef FFS_LINUX
//handle execution of a method while updating the UI
class UpdateWhileCopying : public UpdateWhileExecuting
{
public:
UpdateWhileCopying() {}
~UpdateWhileCopying() {}
Zstring source;
Zstring target;
bool success;
Zstring errorMessage;
private:
virtual void longRunner()
{
try
{
FreeFileSync::copyFile(source, target);
}
catch (const FileError& e)
{
success = false;
errorMessage = e.show();
return;
}
success = true;
}
};
void copyFileUpdating(const Zstring& source, const Zstring& target, const wxULongLong& totalBytesToCpy, StatusHandler* updateClass)
{
//create folders first (see http://sourceforge.net/tracker/index.php?func=detail&aid=2628943&group_id=234430&atid=1093080)
const Zstring targetDir = target.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR);
if (!wxDirExists(targetDir.c_str()))
{
const Zstring templateDir = source.BeforeLast(FreeFileSync::FILE_NAME_SEPARATOR);
FreeFileSync::createDirectory(targetDir, templateDir); //might throw FileError() exception
}
//update while copying via additional worker thread
static UpdateWhileCopying copyAndUpdate; //single instantiation: thread enters wait phase after each execution
copyAndUpdate.waitUntilReady();
//longRunner is called from thread, but no mutex needed here, since thread is in waiting state!
copyAndUpdate.source = source;
copyAndUpdate.target = target;
copyAndUpdate.execute(updateClass);
//no mutex needed here since longRunner is finished
if (!copyAndUpdate.success)
throw FileError(copyAndUpdate.errorMessage);
//inform about the processed amount of data
updateClass->updateProcessedData(0, totalBytesToCpy.ToDouble());
#endif
}
*/
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