WriterFile Class Reference

Inheritance diagram for WriterFile:

Collaboration diagram for WriterFile:

Public Member Functions
	WriterFile (LOG_CHN *log_chn)
	~WriterFile ()
int	wr_open (LOG_CHN *log_chn, int run_number)
int	wr_write (LOG_CHN *log_chn, const void *data, const int size)
int	wr_close (LOG_CHN *log_chn, int run_number)
std::string	wr_get_chain ()
Public Member Functions inherited from WriterInterface
	WriterInterface ()
virtual	~WriterInterface ()
virtual std::string	wr_get_file_ext ()

Private Attributes
std::string	fFilename
int	fFileno

Additional Inherited Members
Public Attributes inherited from WriterInterface
bool	fTrace
double	fBytesIn
double	fBytesOut

Detailed Description

Definition at line 501 of file mlogger.cxx.

Constructor & Destructor Documentation

WriterFile()

WriterFile::WriterFile ( LOG_CHN *  log_chn )

inline

Definition at line 504 of file mlogger.cxx.

   {
      if (fTrace)
         printf("WriterFile: path [%s]\n", log_chn->path.c_str());
      fFileno = -1;
   }

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~WriterFile()

WriterFile::~WriterFile ( )

inline

Definition at line 511 of file mlogger.cxx.

   {
      if (fTrace)
         printf("WriterFile: destructor\n");
      fFileno = -1;
   }

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Member Function Documentation

wr_close()

int WriterFile::wr_close ( LOG_CHN *  log_chn, int  run_number  )

inlinevirtual

Implements WriterInterface.

Definition at line 572 of file mlogger.cxx.

   {
      int err;
 
      if (fTrace)
         printf("WriterFile: close path [%s]\n", log_chn->path.c_str());
 
      assert(fFileno >= 0);
 
      log_chn->handle = 0;
 
      err = close(fFileno);
      fFileno = -1;
 
      if (err != 0) {
         cm_msg(MERROR, "WriterFile::wr_close", "Cannot write to file \'%s\', close() errno %d (%s)", log_chn->path.c_str(), errno, strerror(errno));
         return SS_FILE_ERROR;
      }
 
      return SUCCESS;
   }

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wr_get_chain()

std::string WriterFile::wr_get_chain ( )

inlinevirtual

Implements WriterInterface.

Definition at line 594 of file mlogger.cxx.

   {
      return ">" + fFilename;
   }

wr_open()

int WriterFile::wr_open ( LOG_CHN *  log_chn, int  run_number  )

inlinevirtual

Implements WriterInterface.

Definition at line 518 of file mlogger.cxx.

   {
      fBytesIn = 0;
      fBytesOut = 0;
 
      if (fTrace)
         printf("WriterFile: open path [%s]\n", log_chn->path.c_str());
 
      assert(fFileno < 0);
 
      if (check_file_exists(log_chn->path.c_str()))
         return SS_FILE_EXISTS;
 
#ifdef OS_WINNT
      fFileno = (int) CreateFile(log_chn->path.c_str(), GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH | FILE_FLAG_SEQUENTIAL_SCAN, 0);
#else
      fFileno = open(log_chn->path.c_str(), O_WRONLY | O_CREAT | O_EXCL | O_TRUNC | O_BINARY | O_LARGEFILE, 0444);
#endif
      if (fFileno < 0) {
         cm_msg(MERROR, "WriterFile::wr_open", "Cannot write to file \'%s\', open() errno %d (%s)", log_chn->path.c_str(), errno, strerror(errno));
         return SS_FILE_ERROR;
      }
 
      log_chn->handle = fFileno;
 
      fFilename = log_chn->path;
      return SUCCESS;
   }

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wr_write()

int WriterFile::wr_write ( LOG_CHN *  log_chn, const void *  data, const int  size  )

inlinevirtual

Implements WriterInterface.

Definition at line 547 of file mlogger.cxx.

   {
      if (fTrace)
         printf("WriterFile: write path [%s], size %d\n", log_chn->path.c_str(), size);
 
      if (size == 0)
         return SUCCESS;
 
      assert(fFileno >= 0);
 
      fBytesIn += size;
 
      int wr = write(fFileno, data, size);
 
      if (wr > 0)
         fBytesOut += wr;
 
      if (wr != size) {
         cm_msg(MERROR, "WriterFile::wr_write", "Cannot write to file \'%s\', write(%d) returned %d, errno: %d (%s)", log_chn->path.c_str(), size, wr, errno, strerror(errno));
         return SS_FILE_ERROR;
      }
 
      return SUCCESS;
   }

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Member Data Documentation

fFilename

std::string WriterFile::fFilename

private

Definition at line 600 of file mlogger.cxx.

fFileno

int WriterFile::fFileno

private

Definition at line 601 of file mlogger.cxx.

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The documentation for this class was generated from the following file:

• progs/mlogger.cxx