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Diffstat (limited to 'lib/common/ReadLoggingStream.h')
-rw-r--r-- | lib/common/ReadLoggingStream.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/common/ReadLoggingStream.h b/lib/common/ReadLoggingStream.h new file mode 100644 index 00000000..b23b542c --- /dev/null +++ b/lib/common/ReadLoggingStream.h @@ -0,0 +1,58 @@ +// -------------------------------------------------------------------------- +// +// File +// Name: ReadLoggingStream.h +// Purpose: Wrapper around IOStreams that logs read progress +// Created: 2007/01/16 +// +// -------------------------------------------------------------------------- + +#ifndef READLOGGINGSTREAM__H +#define READLOGGINGSTREAM__H + +#include "IOStream.h" +#include "BoxTime.h" + +class ReadLoggingStream : public IOStream +{ +public: + class Logger + { + public: + virtual ~Logger() { } + virtual void Log(int64_t readSize, int64_t offset, + int64_t length, box_time_t elapsed, + box_time_t finish) = 0; + virtual void Log(int64_t readSize, int64_t offset, + int64_t length) = 0; + virtual void Log(int64_t readSize, int64_t offset) = 0; + }; + +private: + IOStream& mrSource; + IOStream::pos_type mOffset, mLength, mTotalRead; + box_time_t mStartTime; + Logger& mrLogger; + +public: + ReadLoggingStream(IOStream& rSource, Logger& rLogger); + + virtual int Read(void *pBuffer, int NBytes, int Timeout = IOStream::TimeOutInfinite); + virtual pos_type BytesLeftToRead(); + virtual void Write(const void *pBuffer, int NBytes); + virtual pos_type GetPosition() const; + virtual void Seek(IOStream::pos_type Offset, int SeekType); + virtual void Close(); + + virtual bool StreamDataLeft(); + virtual bool StreamClosed(); + +private: + ReadLoggingStream(const ReadLoggingStream &rToCopy) + : mrSource(rToCopy.mrSource), mrLogger(rToCopy.mrLogger) + { /* do not call */ } +}; + +#endif // READLOGGINGSTREAM__H + + |