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// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de) *
// **************************************************************************
#ifndef WATCHER_H_INCLUDED
#define WATCHER_H_INCLUDED
#include "../shared/zstring.h"
#include <vector>
#include "../shared/file_error.h"
namespace rts
{
const int UI_UPDATE_INTERVAL = 100; //perform ui updates not more often than necessary, 100 seems to be a good value with only a minimal performance loss
bool updateUiIsAllowed();
class WaitCallback
{
public:
virtual ~WaitCallback() {}
virtual void requestUiRefresh() = 0; //opportunity to abort must be implemented in a frequently executed method like requestUiRefresh()
};
//wait until changes are detected or if a directory is not available (anymore)
enum ChangeType
{
CHANGE_DETECTED,
CHANGE_DIR_MISSING
};
struct WaitResult
{
WaitResult(ChangeType tp, const Zstring& chgFile = Zstring()) : type(tp), filename(chgFile) {}
ChangeType type;
Zstring filename; //filled if type == CHANGE_DETECTED
};
WaitResult waitForChanges(const std::vector<Zstring>& dirNamesNonFmt, //non-formatted dir names that yet require call to getFormattedDirectoryName()
WaitCallback* statusHandler); //throw(FileError)
//wait until all directories become available (again)
void waitForMissingDirs(const std::vector<Zstring>& dirNamesNonFmt,
WaitCallback* statusHandler); //throw(FileError)
}
#endif // WATCHER_H_INCLUDED
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