# kio Library API Documentation

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# kdirwatch_p.h

    00001 /* Private Header for class of KDirWatchPrivate
    00002  *
    00003  * this separate header file is needed for MOC processing
    00004  * because KDirWatchPrivate has signals and slots
    00005  */
    00006
    00007 #ifndef _KDIRWATCH_P_H
    00008 #define _KDIRWATCH_P_H
    00009
    00010 #ifdef HAVE_FAM
    00011 #include <fam.h>
    00012 #endif
    00013
    00014 /* KDirWatchPrivate is a singleton and does the watching
    00015  * for every KDirWatch instance in the application.
    00016  */
    00017 class KDirWatchPrivate : public QObject
    00018 {
    00019   Q_OBJECT
    00020 public:
    00021
    00022   enum entryStatus { Normal = 0, NonExistent };
    00023   enum entryMode { UnknownMode = 0, StatMode, DNotifyMode, FAMMode };
    00024   enum { NoChange=0, Changed=1, Created=2, Deleted=4 };
    00025
    00026   struct Client {
    00027     KDirWatch* instance;
    00028     int count;
    00029     // did the instance stop watching
    00030     bool watchingStopped;
    00031     // events blocked when stopped
    00032     int pending;
    00033   };
    00034
    00035   class Entry
    00036   {
    00037   public:
    00038     // the last observed modification time
    00039     QDateTime m_ctime;
    00040     entryStatus m_status;
    00041     entryMode m_mode;
    00042     bool isDir;
    00043     // instances interested in events
    00044     QPtrList<Client> m_clients;
    00045     // nonexistent entries of this directory
    00046     QPtrList<Entry> m_entries;
    00047     QString path;
    00048
    00049     int msecLeft, freq;
    00050
    00051     void addClient(KDirWatch*);
    00052     void removeClient(KDirWatch*);
    00053     int clients();
    00054     bool isValid() { return m_clients.count() || m_entries.count(); }
    00055
    00056 #ifdef HAVE_FAM
    00057     FAMRequest fr;
    00058 #endif
    00059
    00060 #ifdef HAVE_DNOTIFY
    00061     int dn_fd;
    00062     bool dn_dirty;
    00063     void propagate_dirty();
    00064 #endif
    00065   };
    00066
    00067   typedef QMap<QString,Entry> EntryMap;
    00068
    00069   KDirWatchPrivate();
    00070   ~KDirWatchPrivate();
    00071
    00072   void resetList (KDirWatch*,bool);
    00073   void useFreq(Entry* e, int newFreq);
    00074   void addEntry(KDirWatch*,const QString&, Entry*, bool);
    00075   void removeEntry(KDirWatch*,const QString&, Entry*);
    00076   bool stopEntryScan(KDirWatch*, Entry*);
    00077   bool restartEntryScan(KDirWatch*, Entry*, bool );
    00078   void stopScan(KDirWatch*);
    00079   void startScan(KDirWatch*, bool, bool);
    00080
    00081   void removeEntries(KDirWatch*);
    00082   void statistics();
    00083
    00084   Entry* entry(const QString&);
    00085   int scanEntry(Entry* e);
    00086   void emitEvent(Entry* e, int event, const QString &fileName = QString::null);
    00087
    00088   // Memory management - delete when last KDirWatch gets deleted
    00089   void ref() { m_ref++; }
    00090   bool deref() { return ( --m_ref == 0 ); }
    00091
    00092 public slots:
    00093   void slotRescan();
    00094   void famEventReceived(); // for FAM
    00095   void slotActivated(); // for DNOTIFY
    00096   void slotRemoveDelayed();
    00097
    00098 public:
    00099   QTimer *timer;
    00100   EntryMap m_mapEntries;
    00101
    00102 private:
    00103   int freq;
    00104   int statEntries;
    00105   int m_nfsPollInterval, m_PollInterval;
    00106   int m_ref;
    00107   bool useStat(Entry*);
    00108
    00109   bool delayRemove;
    00110   QPtrList<Entry> removeList;
    00111
    00112 #ifdef HAVE_FAM
    00113   QSocketNotifier *sn;
    00114   FAMConnection fc;
    00115   bool use_fam;
    00116
    00117   void checkFAMEvent(FAMEvent*);
    00118   bool useFAM(Entry*);
    00119 #endif
    00120
    00121 #ifdef HAVE_DNOTIFY
    00122   bool supports_dnotify;
    00123   bool rescan_all;
    00124   int mPipe[2];
    00125   QTimer mTimer;
    00126   QSocketNotifier *mSn;
    00127   QIntDict<Entry> fd_Entry;
    00128
    00129   static void dnotify_handler(int, siginfo_t *si, void *);
    00130   static void dnotify_sigio_handler(int, siginfo_t *si, void *);
    00131   bool useDNotify(Entry*);
    00132 #endif
    00133 };
    00134
    00135 #endif // KDIRWATCH_P_H
    00136

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 13:13:25 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001