vdr-1.6.0/tools.c File Reference

#include "tools.h"
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <jpeglib.h>
#include <stdarg.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/vfs.h>
#include <time.h>
#include <unistd.h>
#include <utime.h>
#include "i18n.h"
#include "thread.h"

Include dependency graph for tools.c:

Go to the source code of this file.

Classes

struct  tJpegCompressData

Defines

#define MAXSYSLOGBUF   256
#define MT(s, m, v)   ((*(s) & (m)) == (v))
#define JPEGCOMPRESSMEM   500000
#define USE_FADVISE
#define WRITE_BUFFER   KILOBYTE(800)
#define FADVGRAN   KILOBYTE(4)
#define READCHUNK   MEGABYTE(8)
#define LOCKFILENAME   ".lock-vdr"
#define LOCKFILESTALETIME   600

Functions

void syslog_with_tid (int priority, const char *format,...)
int BCD2INT (int x)
ssize_t safe_read (int filedes, void *buffer, size_t size)
ssize_t safe_write (int filedes, const void *buffer, size_t size)
void writechar (int filedes, char c)
int WriteAllOrNothing (int fd, const uchar *Data, int Length, int TimeoutMs, int RetryMs)
char * strcpyrealloc (char *dest, const char *src)
char * strn0cpy (char *dest, const char *src, size_t n)
char * strreplace (char *s, char c1, char c2)
char * strreplace (char *s, const char *s1, const char *s2)
 re-allocates 's' and deletes the original string if necessary!
char * stripspace (char *s)
char * compactspace (char *s)
cString strescape (const char *s, const char *chars)
bool startswith (const char *s, const char *p)
bool endswith (const char *s, const char *p)
bool isempty (const char *s)
int numdigits (int n)
bool isnumber (const char *s)
cString AddDirectory (const char *DirName, const char *FileName)
cString itoa (int n)
bool EntriesOnSameFileSystem (const char *File1, const char *File2)
int FreeDiskSpaceMB (const char *Directory, int *UsedMB)
bool DirectoryOk (const char *DirName, bool LogErrors)
bool MakeDirs (const char *FileName, bool IsDirectory)
bool RemoveFileOrDir (const char *FileName, bool FollowSymlinks)
bool RemoveEmptyDirectories (const char *DirName, bool RemoveThis)
int DirSizeMB (const char *DirName)
 returns the total size of the files in the given directory, or -1 in case of an error
char * ReadLink (const char *FileName)
 returns a new string allocated on the heap, which the caller must delete (or NULL in case of an error)
bool SpinUpDisk (const char *FileName)
void TouchFile (const char *FileName)
time_t LastModifiedTime (const char *FileName)
int Utf8CharLen (const char *s)
uint Utf8CharGet (const char *s, int Length)
int Utf8CharSet (uint c, char *s)
int Utf8SymChars (const char *s, int Symbols)
int Utf8StrLen (const char *s)
char * Utf8Strn0Cpy (char *Dest, const char *Src, int n)
int Utf8ToArray (const char *s, uint *a, int Size)
int Utf8FromArray (const uint *a, char *s, int Size, int Max)
cString WeekDayName (int WeekDay)
cString WeekDayName (time_t t)
cString WeekDayNameFull (int WeekDay)
cString WeekDayNameFull (time_t t)
cString DayDateTime (time_t t)
cString TimeToString (time_t t)
cString DateString (time_t t)
cString TimeString (time_t t)
static void JpegCompressInitDestination (j_compress_ptr cinfo)
static boolean JpegCompressEmptyOutputBuffer (j_compress_ptr cinfo)
static void JpegCompressTermDestination (j_compress_ptr cinfo)
ucharRgbToJpeg (uchar *Mem, int Width, int Height, int &Size, int Quality)
static int CompareListObjects (const void *a, const void *b)

Variables

int SysLogLevel = 3
static uint SystemToUtf8 [128] = { 0 }


Define Documentation

#define FADVGRAN   KILOBYTE(4)

Definition at line 1493 of file tools.c.

Referenced by cUnbufferedFile::FadviseDrop().

#define JPEGCOMPRESSMEM   500000

Definition at line 997 of file tools.c.

Referenced by JpegCompressEmptyOutputBuffer(), and JpegCompressInitDestination().

#define LOCKFILENAME   ".lock-vdr"

Definition at line 1635 of file tools.c.

Referenced by cLockFile::cLockFile().

#define LOCKFILESTALETIME   600

Definition at line 1636 of file tools.c.

Referenced by cLockFile::Lock().

#define MAXSYSLOGBUF   256

Definition at line 33 of file tools.c.

Referenced by syslog_with_tid().

#define MT ( s,
m,
 )     ((*(s) & (m)) == (v))

Referenced by Utf8CharLen().

#define READCHUNK   MEGABYTE(8)

Definition at line 1494 of file tools.c.

Referenced by cUnbufferedFile::Read().

#define USE_FADVISE

Definition at line 1442 of file tools.c.

#define WRITE_BUFFER   KILOBYTE(800)

Definition at line 1444 of file tools.c.

Referenced by cUnbufferedFile::Write().


Function Documentation

cString AddDirectory ( const char *  DirName,
const char *  FileName 
)

int BCD2INT ( int  x  ) 

Definition at line 45 of file tools.c.

References BCDCHARTOINT.

Referenced by cNitFilter::Process().

char* compactspace ( char *  s  ) 

Definition at line 182 of file tools.c.

References skipspace(), and stripspace().

Referenced by cEvent::FixEpgBugs(), cSetupLine::Parse(), cSdtFilter::Process(), and cRecordingInfo::Read().

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static int CompareListObjects ( const void *  a,
const void *  b 
) [static]

Definition at line 1848 of file tools.c.

References cListObject::Compare().

Referenced by cListBase::Sort().

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cString DateString ( time_t  t  ) 

cString DayDateTime ( time_t  t  ) 

bool DirectoryOk ( const char *  DirName,
bool  LogErrors 
)

Definition at line 312 of file tools.c.

References esyslog, and LOG_ERROR_STR.

Referenced by cLockFile::cLockFile(), main(), cVideoDirectory::Next(), and SpinUpDisk().

int DirSizeMB ( const char *  DirName  ) 

returns the total size of the files in the given directory, or -1 in case of an error

Definition at line 449 of file tools.c.

References AddDirectory(), DirSizeMB(), LOG_ERROR_STR, MEGABYTE, cReadDir::Next(), and cReadDir::Ok().

Referenced by cRecordings::DelByName(), DirSizeMB(), and cRecordings::ScanVideoDir().

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bool endswith ( const char *  s,
const char *  p 
)

Definition at line 231 of file tools.c.

Referenced by cRecording::Remove(), and cRecordings::ScanVideoDir().

bool EntriesOnSameFileSystem ( const char *  File1,
const char *  File2 
)

Definition at line 280 of file tools.c.

References LOG_ERROR_STR.

Referenced by IsOnVideoDirectoryFileSystem().

int FreeDiskSpaceMB ( const char *  Directory,
int *  UsedMB 
)

Definition at line 295 of file tools.c.

References LOG_ERROR_STR.

Referenced by cVideoDirectory::FreeMB(), OpenVideoFile(), and cFileWriter::RunningLowOnDiskSpace().

bool isempty ( const char *  s  ) 

bool isnumber ( const char *  s  ) 

cString itoa ( int  n  ) 

static boolean JpegCompressEmptyOutputBuffer ( j_compress_ptr  cinfo  )  [static]

Definition at line 1013 of file tools.c.

References JPEGCOMPRESSMEM, tJpegCompressData::mem, and tJpegCompressData::size.

Referenced by RgbToJpeg().

static void JpegCompressInitDestination ( j_compress_ptr  cinfo  )  [static]

Definition at line 1004 of file tools.c.

References JPEGCOMPRESSMEM, MALLOC, tJpegCompressData::mem, and tJpegCompressData::size.

Referenced by RgbToJpeg().

static void JpegCompressTermDestination ( j_compress_ptr  cinfo  )  [static]

Definition at line 1029 of file tools.c.

References tJpegCompressData::mem, and tJpegCompressData::size.

Referenced by RgbToJpeg().

time_t LastModifiedTime ( const char *  FileName  ) 

Definition at line 535 of file tools.c.

Referenced by cRecordings::NeedsUpdate().

bool MakeDirs ( const char *  FileName,
bool  IsDirectory 
)

int numdigits ( int  n  ) 

Definition at line 247 of file tools.c.

char* ReadLink ( const char *  FileName  ) 

returns a new string allocated on the heap, which the caller must delete (or NULL in case of an error)

Definition at line 483 of file tools.c.

References LOG_ERROR_STR.

Referenced by cSafeFile::cSafeFile(), and cRecordings::ScanVideoDir().

bool RemoveEmptyDirectories ( const char *  DirName,
bool  RemoveThis 
)

Definition at line 411 of file tools.c.

References AddDirectory(), dsyslog, LOG_ERROR_STR, cReadDir::Next(), cReadDir::Ok(), and RemoveEmptyDirectories().

Referenced by RemoveEmptyDirectories(), and RemoveEmptyVideoDirectories().

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bool RemoveFileOrDir ( const char *  FileName,
bool  FollowSymlinks 
)

Definition at line 358 of file tools.c.

References AddDirectory(), dsyslog, esyslog, LOG_ERROR_STR, MALLOC, cReadDir::Next(), and cReadDir::Ok().

Referenced by RemoveVideoFile().

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uchar* RgbToJpeg ( uchar Mem,
int  Width,
int  Height,
int &  Size,
int  Quality = 100 
)

Converts the given Memory to a JPEG image and returns a pointer to the resulting image. Mem must point to a data block of exactly (Width * Height) triplets of RGB image data bytes. Upon return, Size will hold the number of bytes of the resulting JPEG data. Quality can be in the range 0..100 and controls the quality of the resulting image, where 100 is "best". The caller takes ownership of the result and has to delete it once it is no longer needed. The result may be NULL in case of an error.

Definition at line 1041 of file tools.c.

References JpegCompressEmptyOutputBuffer(), JpegCompressInitDestination(), JpegCompressTermDestination(), tJpegCompressData::mem, and tJpegCompressData::size.

Referenced by cDvbDevice::GrabImage().

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ssize_t safe_read ( int  filedes,
void *  buffer,
size_t  size 
)

ssize_t safe_write ( int  filedes,
const void *  buffer,
size_t  size 
)

bool SpinUpDisk ( const char *  FileName  ) 

Definition at line 497 of file tools.c.

References DirectoryOk(), dsyslog, esyslog, LOG_ERROR_STR, and cString::sprintf().

Referenced by cRecorder::cRecorder().

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bool startswith ( const char *  s,
const char *  p 
)

Definition at line 222 of file tools.c.

char* strcpyrealloc ( char *  dest,
const char *  src 
)

cString strescape ( const char *  s,
const char *  chars 
)

char* stripspace ( char *  s  ) 

char* strn0cpy ( char *  dest,
const char *  src,
size_t  n 
)

char* strreplace ( char *  s,
const char *  s1,
const char *  s2 
)

re-allocates 's' and deletes the original string if necessary!

Definition at line 152 of file tools.c.

char* strreplace ( char *  s,
char  c1,
char  c2 
)

void syslog_with_tid ( int  priority,
const char *  format,
  ... 
)

Definition at line 35 of file tools.c.

References MAXSYSLOGBUF, and cThread::ThreadId().

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cString TimeString ( time_t  t  ) 

cString TimeToString ( time_t  t  ) 

void TouchFile ( const char *  FileName  ) 

Definition at line 529 of file tools.c.

References LOG_ERROR_STR.

Referenced by cRecordings::TouchUpdate().

uint Utf8CharGet ( const char *  s,
int  Length = 0 
)

Returns the UTF-8 symbol at the beginning of the given string. Length can be given from a previous call to Utf8CharLen() to avoid calculating it again. If no Length is given, Utf8CharLen() will be called.

Definition at line 626 of file tools.c.

References cCharSetConv::SystemCharacterTable(), SystemToUtf8, and Utf8CharLen().

Referenced by cFreetypeFont::DrawText(), cTextWrapper::Set(), cCharSetConv::SetSystemCharacterTable(), Utf8ToArray(), and cFreetypeFont::Width().

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int Utf8CharLen ( const char *  s  ) 

Returns the number of character bytes at the beginning of the given string that form a UTF-8 symbol.

Definition at line 612 of file tools.c.

References MT, and cCharSetConv::SystemCharacterTable().

Referenced by cFreetypeFont::DrawText(), cTimer::PrintDay(), cTextWrapper::Set(), cCharSetConv::SetSystemCharacterTable(), Utf8CharGet(), Utf8StrLen(), Utf8Strn0Cpy(), Utf8SymChars(), Utf8ToArray(), and cFreetypeFont::Width().

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int Utf8CharSet ( uint  c,
char *  s = NULL 
)

Converts the given UTF-8 symbol to a sequence of character bytes and copies them to the given string. Returns the number of bytes written. If no string is given, only the number of bytes is returned and nothing is copied.

Definition at line 640 of file tools.c.

References cCharSetConv::SystemCharacterTable().

Referenced by Utf8FromArray().

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int Utf8FromArray ( const uint *  a,
char *  s,
int  Size,
int  Max = -1 
)

Converts the given array of UTF-8 symbols (including the terminating 0) into a sequence of character bytes of at most Size length. Returns the number of character bytes written (without the terminating 0). If Max is given, only that many symbols will be converted. The resulting string is always zero-terminated if Size is big enough.

Definition at line 736 of file tools.c.

References cCharSetConv::SystemCharacterTable(), and Utf8CharSet().

Referenced by cMenuEditStrItem::LeaveEditMode(), and cMenuEditStrItem::Set().

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int Utf8StrLen ( const char *  s  ) 

Returns the number of UTF-8 symbols formed by the given string of character bytes.

Definition at line 687 of file tools.c.

References cCharSetConv::SystemCharacterTable(), and Utf8CharLen().

Referenced by cSkinCursesDisplayMenu::Flush(), cSkinCursesDisplayChannel::Flush(), cSkinCursesDisplayReplay::SetCurrent(), cSkinCursesDisplayMenu::SetEvent(), cSkinCursesDisplayReplay::SetTotal(), cSkinCursesDisplayVolume::SetVolume(), and cCursesFont::Width().

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char* Utf8Strn0Cpy ( char *  Dest,
const char *  Src,
int  n 
)

Copies at most n character bytes from Src to Dst, making sure that the resulting copy ends with a complete UTF-8 symbol. The copy is guaranteed to be zero terminated. Returns a pointer to Dest.

Definition at line 699 of file tools.c.

References strn0cpy(), cCharSetConv::SystemCharacterTable(), and Utf8CharLen().

Referenced by cRecording::cRecording(), cTimer::cTimer(), cTimer::Parse(), cSetup::Parse(), cMenuSetupOSD::ProcessKey(), cDevice::SetAvailableTrack(), and cTimer::SetFile().

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int Utf8SymChars ( const char *  s,
int  Symbols 
)

Returns the number of character bytes at the beginning of the given string that form at most the given number of UTF-8 symbols.

Definition at line 674 of file tools.c.

References cCharSetConv::SystemCharacterTable(), and Utf8CharLen().

Referenced by cMenuScheduleItem::Update(), and WeekDayName().

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int Utf8ToArray ( const char *  s,
uint *  a,
int  Size 
)

Converts the given character bytes (including the terminating 0) into an array of UTF-8 symbols of the given Size. Returns the number of symbols in the array (without the terminating 0).

Definition at line 718 of file tools.c.

References cCharSetConv::SystemCharacterTable(), Utf8CharGet(), and Utf8CharLen().

Referenced by cMenuEditStrItem::EnterEditMode().

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cString WeekDayName ( time_t  t  ) 

Definition at line 928 of file tools.c.

References WeekDayName().

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cString WeekDayName ( int  WeekDay  ) 

Definition at line 913 of file tools.c.

References min(), strn0cpy(), tr, and Utf8SymChars().

Referenced by DateString(), DayDateTime(), cMenuEditDateItem::Set(), cMenuTimerItem::Set(), and WeekDayName().

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cString WeekDayNameFull ( time_t  t  ) 

Definition at line 949 of file tools.c.

References WeekDayNameFull().

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cString WeekDayNameFull ( int  WeekDay  ) 

Definition at line 934 of file tools.c.

References tr.

Referenced by WeekDayNameFull().

int WriteAllOrNothing ( int  fd,
const uchar Data,
int  Length,
int  TimeoutMs = 0,
int  RetryMs = 0 
)

Writes either all Data to the given file descriptor, or nothing at all. If TimeoutMs is greater than 0, it will only retry for that long, otherwise it will retry forever. RetryMs defines the time between two retries.

Definition at line 90 of file tools.c.

References cTimeMs::Elapsed(), FATALERRNO, and cPoller::Poll().

Referenced by cDvbDevice::PlayAudio(), and cDvbDevice::PlayVideo().

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void writechar ( int  filedes,
char  c 
)

Definition at line 85 of file tools.c.

References safe_write().

Referenced by cIndexFile::cIndexFile().

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Variable Documentation

int SysLogLevel = 3

Definition at line 31 of file tools.c.

Referenced by main().

uint SystemToUtf8[128] = { 0 } [static]

Definition at line 610 of file tools.c.

Referenced by cCharSetConv::SetSystemCharacterTable(), and Utf8CharGet().


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