/* * videodir.c: Functions to maintain the video directory * * See the main source file 'vdr.c' for copyright information and * how to reach the author. * * $Id: videodir.c 4.1.1.1 2021/12/27 11:18:40 kls Exp $ */ #include "videodir.h" #include #include #include #include #include #include #include #include #include "recording.h" #include "tools.h" cMutex cVideoDirectory::mutex; cString cVideoDirectory::name; cVideoDirectory *cVideoDirectory::current = NULL; cVideoDirectory::cVideoDirectory(void) { mutex.Lock(); delete current; current = this; mutex.Unlock(); } cVideoDirectory::~cVideoDirectory() { mutex.Lock(); current = NULL; mutex.Unlock(); } cVideoDirectory *cVideoDirectory::Current(void) { mutex.Lock(); if (!current) new cVideoDirectory; mutex.Unlock(); return current; } void cVideoDirectory::Destroy(void) { delete current; } int cVideoDirectory::FreeMB(int *UsedMB) { return FreeDiskSpaceMB(Name(), UsedMB); } const char *cVideoDirectory::Name(void) { return name; } void cVideoDirectory::SetName(const char *Name) { name = Name; } bool cVideoDirectory::Register(const char *FileName) { // Incoming name must be in base video directory: if (strstr(FileName, Name()) != FileName) { esyslog("ERROR: %s not in %s", FileName, Name()); errno = ENOENT; // must set 'errno' - any ideas for a better value? return false; } return true; } bool cVideoDirectory::Rename(const char *OldName, const char *NewName) { dsyslog("renaming '%s' to '%s'", OldName, NewName); if (rename(OldName, NewName) == -1) { LOG_ERROR_STR(NewName); return false; } return true; } bool cVideoDirectory::Move(const char *FromName, const char *ToName) { dsyslog("moving '%s' to '%s'", FromName, ToName); if (EntriesOnSameFileSystem(FromName, ToName)) { if (rename(FromName, ToName) == -1) { LOG_ERROR_STR(ToName); return false; } } else return RecordingsHandler.Add(ruMove, FromName, ToName); return true; } bool cVideoDirectory::Remove(const char *Name) { return RemoveFileOrDir(Name); } void cVideoDirectory::Cleanup(const char *IgnoreFiles[]) { RemoveEmptyDirectories(Name(), false, IgnoreFiles); } bool cVideoDirectory::Contains(const char *Name) { return EntriesOnSameFileSystem(this->Name(), Name); } cUnbufferedFile *cVideoDirectory::OpenVideoFile(const char *FileName, int Flags) { if (Current()->Register(FileName)) return cUnbufferedFile::Create(FileName, Flags, DEFFILEMODE); return NULL; } bool cVideoDirectory::RenameVideoFile(const char *OldName, const char *NewName) { return Current()->Rename(OldName, NewName); } bool cVideoDirectory::MoveVideoFile(const char *FromName, const char *ToName) { return Current()->Move(FromName, ToName); } bool cVideoDirectory::RemoveVideoFile(const char *FileName) { return Current()->Remove(FileName); } bool cVideoDirectory::VideoFileSpaceAvailable(int SizeMB) { return Current()->FreeMB() >= SizeMB; } int cVideoDirectory::VideoDiskSpace(int *FreeMB, int *UsedMB) { int used = 0; int free = Current()->FreeMB(&used); LOCK_DELETEDRECORDINGS_READ; int deleted = DeletedRecordings->TotalFileSizeMB(); if (deleted > used) deleted = used; // let's not get beyond 100% free += deleted; used -= deleted; if (FreeMB) *FreeMB = free; if (UsedMB) *UsedMB = used; return (free + used) ? round(double(used) * 100 / (free + used)) : 0; } cString cVideoDirectory::PrefixVideoFileName(const char *FileName, char Prefix) { char PrefixedName[strlen(FileName) + 2]; const char *p = FileName + strlen(FileName); // p points at the terminating 0 int n = 2; while (p-- > FileName && n > 0) { if (*p == '/') { if (--n == 0) { int l = p - FileName + 1; strncpy(PrefixedName, FileName, l); PrefixedName[l] = Prefix; strcpy(PrefixedName + l + 1, p + 1); return PrefixedName; } } } return NULL; } void cVideoDirectory::RemoveEmptyVideoDirectories(const char *IgnoreFiles[]) { Current()->Cleanup(IgnoreFiles); } bool cVideoDirectory::IsOnVideoDirectoryFileSystem(const char *FileName) { return Current()->Contains(FileName); } // --- cVideoDiskUsage ------------------------------------------------------- #define DISKSPACECHEK 5 // seconds between disk space checks #define MB_PER_MINUTE 25.75 // this is just an estimate! int cVideoDiskUsage::state = 0; time_t cVideoDiskUsage::lastChecked = 0; int cVideoDiskUsage::usedPercent = 0; int cVideoDiskUsage::freeMB = 0; int cVideoDiskUsage::freeMinutes = 0; bool cVideoDiskUsage::HasChanged(int &State) { if (time(NULL) - lastChecked > DISKSPACECHEK) { int FreeMB; int UsedPercent = cVideoDirectory::VideoDiskSpace(&FreeMB); if (FreeMB != freeMB) { usedPercent = UsedPercent; freeMB = FreeMB; LOCK_RECORDINGS_READ; double MBperMinute = Recordings->MBperMinute(); if (MBperMinute <= 0) MBperMinute = MB_PER_MINUTE; freeMinutes = int(double(FreeMB) / MBperMinute); state++; } lastChecked = time(NULL); } if (State != state) { State = state; return true; } return false; } cString cVideoDiskUsage::String(void) { HasChanged(state); return cString::sprintf("%s %d%% - %2d:%02d %s", tr("Disk"), usedPercent, freeMinutes / 60, freeMinutes % 60, tr("free")); }