OutputFile Class Reference

#include <StreamerFileIO.h>

Public Member Functions
uint32	adler32 () const
uint64	current_offset () const
std::string	fileName () const
	OutputFile (const std::string &name)
void	set_current_offset (uint64 v)
void	set_do_adler (bool v)
bool	write (const char *ptr, size_t n)
	~OutputFile ()

Private Attributes
uint32	adlera_
uint32	adlerb_
uint64	current_offset_
bool	do_adler_
std::string	filename_
std::shared_ptr< std::ofstream >	ost_

Detailed Description

This file contains Class definitions for the Class representing Output (Streamer) file. Class representing Output (Streamer) file.

Definition at line 16 of file StreamerFileIO.h.

Constructor & Destructor Documentation

OutputFile::OutputFile ( const std::string &  name )

explicit

Definition at line 7 of file StreamerFileIO.cc.

References Exception, and ost_.

                                             :
    current_offset_(1), 
    do_adler_(0),
    adlera_(1),
    adlerb_(0),
    ost_(new std::ofstream(name.c_str(), std::ios_base::binary | std::ios_base::out)),
    filename_(name)
  {
    if(!ost_->is_open()) {
      throw cms::Exception("OutputFile","OutputFile")
        << "Error Opening Output File: "<<name<<"\n";
    }
    ost_->rdbuf()->pubsetbuf(0,0);
  }

OutputFile::~OutputFile

(

)

CTOR, takes file path name as argument

Definition at line 22 of file StreamerFileIO.cc.

References ost_.

  {
    ost_->close();
  }

Member Function Documentation

uint32 OutputFile::adler32 ( ) const

inline

Definition at line 32 of file StreamerFileIO.h.

References adlera_, and adlerb_.

{ return (adlerb_ << 16) | adlera_; }

uint64 OutputFile::current_offset ( ) const

inline

Definition at line 31 of file StreamerFileIO.h.

References current_offset_.

{ return current_offset_; }

std::string OutputFile::fileName ( ) const

inline

Definition at line 30 of file StreamerFileIO.h.

References filename_.

{ return filename_; }

void OutputFile::set_current_offset ( uint64  v )

inline

Definition at line 35 of file StreamerFileIO.h.

References current_offset_, and findQualityFiles::v.

{ current_offset_ = v; }

void OutputFile::set_do_adler ( bool  v )

inline

Definition at line 34 of file StreamerFileIO.h.

References do_adler_, and findQualityFiles::v.

{ do_adler_ = v; }

bool OutputFile::write	(	const char *	ptr,
		size_t	n
	)

Definition at line 27 of file StreamerFileIO.cc.

References cms::Adler32(), adlera_, adlerb_, current_offset_, do_adler_, and ost_.

  {
    ost_->write(ptr,n);
    if(!ost_->fail()) {
      current_offset_ += (uint64)(n);
      if (do_adler_)
        cms::Adler32(ptr,n,adlera_,adlerb_);
      return 0;
    }
    return 1;
  }

Member Data Documentation

uint32 OutputFile::adlera_

private

Definition at line 41 of file StreamerFileIO.h.

Referenced by adler32(), and write().

uint32 OutputFile::adlerb_

private

Definition at line 42 of file StreamerFileIO.h.

Referenced by adler32(), and write().

uint64 OutputFile::current_offset_

private

Definition at line 38 of file StreamerFileIO.h.

Referenced by current_offset(), set_current_offset(), and write().

bool OutputFile::do_adler_

private

Location of current ioptr

Definition at line 40 of file StreamerFileIO.h.

Referenced by set_do_adler(), and write().

std::string OutputFile::filename_

private

Definition at line 45 of file StreamerFileIO.h.

Referenced by fileName().

std::shared_ptr<std::ofstream> OutputFile::ost_

private

Definition at line 44 of file StreamerFileIO.h.

Referenced by OutputFile(), write(), and ~OutputFile().