logfile.h
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00029 #ifndef __LOGFILE_H
00030 #define __LOGFILE_H
00031
00032 #if defined (WIN32)
00033 #include <winsock2.h>
00034 #else
00035 #include <sys/time.h>
00036 #endif
00037 #include <string>
00038 #include <vector>
00039
00040 #include <flexiport/timeout.h>
00041 #include <flexiport/flexiport_types.h>
00042
00043 namespace flexiport
00044 {
00045
00046
00047 class LogFile
00048 {
00049 public:
00050 LogFile (unsigned int debug);
00051 ~LogFile ();
00052
00053 void Open (std::string fileName, bool read, bool ignoreTimes = false);
00054 void Close ();
00055 bool IsOpen () const;
00056 void ResetFile ();
00057
00058
00059 ssize_t Read (void *data, size_t count, Timeout &timeout);
00060 ssize_t BytesAvailable (const Timeout &timeout);
00061 bool CheckWrite (const void * const data, const size_t count, size_t * const numWritten,
00062 const Timeout * const timeout = NULL);
00063 void Flush ();
00064 void Drain ();
00065
00066
00067 void WriteRead (const void * const data, size_t count);
00068 void WriteWrite (const void * const data, size_t count);
00069
00070 private:
00071 std::string _fileName;
00072 bool _read;
00073 FILE *_readFile, *_writeFile;
00074 long _readFileSize, _writeFileSize;
00075
00076
00077 struct timeval _openTime;
00078 unsigned int _debug;
00079 size_t _readUsage, _writeUsage;
00080 size_t _readSize, _writeSize;
00081 uint8_t *_readBuffer, *_writeBuffer;
00082 bool _ignoreTimes;
00083
00084 void AllocateReadBuffer (unsigned int size = 0);
00085 void AllocateWriteBuffer (unsigned int size = 0);
00086 void DeallocateReadBuffer ();
00087 void DeallocateWriteBuffer ();
00088
00089 void GetCurrentFileTime (struct timeval &dest);
00090 bool DataAvailableWithinLimit (FILE * const file, const struct timeval &limit);
00091 void GetNextChunkInfo (FILE * const file, struct timeval &timeStamp, size_t &size);
00092 size_t GetChunksToTimeLimit (FILE * const file, void *data, size_t count,
00093 const struct timeval &limit);
00094 size_t GetChunkSizesToTimeLimit (FILE * const file, const struct timeval &limit);
00095 size_t GetSingleChunk (FILE * const file, void *data, size_t count,
00096 struct timeval &timeStamp, size_t &size);
00097 size_t GetFileSize (FILE * const file);
00098
00099 void ReadFromFile (FILE * const file, void * const dest, size_t count);
00100 void WriteToFile (FILE * const file, const void * const data, size_t count);
00101 void WriteTimeStamp (FILE * const file);
00102 };
00103
00104 }
00105
00106 #endif // __LOGFILE_H
00107