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/***************************************************************************
sq_threaddirlister.h - description
-------------------
begin : Feb 10 2007
copyright : (C) 2007 by Baryshev Dmitry
email : ksquirrel.iv@gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef SQ_THREADDIRLISTER_H
#define SQ_THREADDIRLISTER_H
#include <tqthread.h>
#include <tqevent.h>
#include <tqmutex.h>
#include <kurl.h>
#include <sys/types.h>
#include <dirent.h>
class TQObject;
class KConfig;
/********************************************************/
#define SQ_ItemsEventId (TQEvent::User + 1)
class SQ_ItemsEvent : public TQCustomEvent
{
public:
SQ_ItemsEvent(const KURL &tqparent, int c1, int c2)
: TQCustomEvent(SQ_ItemsEventId), m_files(c1), m_dirs(c2), m_url(tqparent)
{}
int files() const;
int dirs() const;
KURL url() const;
private:
int m_files, m_dirs;
KURL m_url;
};
inline
KURL SQ_ItemsEvent::url() const
{
return m_url;
}
inline
int SQ_ItemsEvent::files() const
{
return m_files;
}
inline
int SQ_ItemsEvent::dirs() const
{
return m_dirs;
}
/********************************************************/
/*
* This thread will read directory and determine
* number of files in it. Finally
* it will post an event to main thread with
* calculated count. This function is threaded
* due to perfomance reason.
*/
class SQ_ThreadDirLister : public TQThread
{
public:
SQ_ThreadDirLister(TQObject *o);
~SQ_ThreadDirLister();
void appendURL(const KURL &url);
bool hasURL(const KURL &url);
bool isCurrent(const KURL &url);
void lock();
void unlock();
void closeDir();
protected:
virtual void run();
private:
void waitMutex();
private:
// urls to read
KURL::List todo;
// this object will recieve our events
TQObject *obj;
TQMutex mutex;
KConfig *cache;
DIR *dir;
};
inline
void SQ_ThreadDirLister::appendURL(const KURL &url)
{
todo.append(url);
}
inline
bool SQ_ThreadDirLister::hasURL(const KURL &url)
{
return todo.find(url) != todo.end();
}
inline
bool SQ_ThreadDirLister::isCurrent(const KURL &url)
{
return todo.first().equals(url, true);
}
inline
void SQ_ThreadDirLister::lock()
{
mutex.lock();
}
inline
void SQ_ThreadDirLister::unlock()
{
mutex.unlock();
}
inline
void SQ_ThreadDirLister::waitMutex()
{
while(!mutex.tryLock())
TQThread::msleep(1);
}
#endif
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