diff options
Diffstat (limited to 'videodir.h')
| -rw-r--r-- | videodir.h | 40 |
1 files changed, 39 insertions, 1 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: videodir.h 1.7 2008/02/16 12:53:11 kls Exp $ + * $Id: videodir.h 2.1 2012/04/22 15:07:56 kls Exp $ */ #ifndef __VIDEODIR_H @@ -25,4 +25,42 @@ cString PrefixVideoFileName(const char *FileName, char Prefix); void RemoveEmptyVideoDirectories(void); bool IsOnVideoDirectoryFileSystem(const char *FileName); +class cVideoDiskUsage { +private: + static int state; + static time_t lastChecked; + static int usedPercent; + static int freeMB; + static int freeMinutes; +public: + static bool HasChanged(int &State); + ///< Returns true if the usage of the video disk space has changed since the last + ///< call to this function with the given State variable. The caller should + ///< initialize State to -1, and it will be set to the current internal state + ///< value of the video disk usage checker upon return. Future calls with the same + ///< State variable can then quickly check for changes. + static void ForceCheck(void) { lastChecked = 0; } + ///< To avoid unnecessary load, the video disk usage is only actually checked + ///< every DISKSPACECHEK seconds. Calling ForceCheck() makes sure that the next call + ///< to HasChanged() will check the disk usage immediately. This is useful in case + ///< some files have been deleted and the result shall be displayed instantly. + static cString String(void); + ///< Returns a localized string of the form "Disk nn% - hh:mm free". + ///< This function is mainly for use in skins that want to retain the display of the + ///< free disk space in the menu title, as was the case until VDR version 1.7.27. + ///< An implicit call to HasChanged() is done in this function, to make sure the + ///< returned value is up to date. + static int UsedPercent(void) { return usedPercent; } + ///< Returns the used space of the video disk in percent. + ///< The caller should call HasChanged() first, to make sure the value is up to date. + static int FreeMB(void) { return freeMB; } + ///< Returns the amount of free space on the video disk in MB. + ///< The caller should call HasChanged() first, to make sure the value is up to date. + static int FreeMinutes(void) { return freeMinutes; } + ///< Returns the number of minutes that can still be recorded on the video disk. + ///< This is an estimate and depends on the data rate of the existing recordings. + ///< There is no guarantee that this value will actually be met. + ///< The caller should call HasChanged() first, to make sure the value is up to date. + }; + #endif //__VIDEODIR_H |