tpglibs::testapp::BinarySignalReader< T > Class Template Reference

Simple binary file reader for integer types. More...

#include <BinarySignalReader.hpp>

Public Member Functions
	BinarySignalReader (const std::string &filepath)
	Constructor - opens the file for reading.
	~BinarySignalReader ()=default
	Destructor - closes the file.
std::vector< T >	next (size_t n)
	Read next chunk of data.
bool	eof ()
	Check if we've reached end of file.
std::streampos	tellg ()
	Get current file position.
void	seekg (std::streampos pos)
	Seek to specific position.

Private Attributes
std::ifstream	m_file
bool	m_eof_reached

Detailed Description

template<typename T>
class tpglibs::testapp::BinarySignalReader< T >

Simple binary file reader for integer types.

Reads binary data from a file and returns it as the requested integer type. Used for reading int16_t test data.

Definition at line 27 of file BinarySignalReader.hpp.

Constructor & Destructor Documentation

BinarySignalReader()

template<typename T >

tpglibs::testapp::BinarySignalReader< T >::BinarySignalReader ( const std::string & filepath )

explicit

Constructor - opens the file for reading.

Parameters

filepath

Path to the binary file

Exceptions

std::runtime_error

if file cannot be opened

Definition at line 19 of file BinarySignalReader.hxx.

    : m_file(filepath, std::ios::binary), m_eof_reached(false) {
  if (!m_file.is_open()) {
    throw std::runtime_error("Failed to open file: " + filepath);
  }
}

~BinarySignalReader()

template<typename T >

tpglibs::testapp::BinarySignalReader< T >::~BinarySignalReader ( )

default

Destructor - closes the file.

Member Function Documentation

eof()

template<typename T >

bool tpglibs::testapp::BinarySignalReader< T >::eof

(

)

Check if we've reached end of file.

Returns

true if EOF reached

Definition at line 51 of file BinarySignalReader.hxx.

                                {
  // Check if we're at the end of the file by comparing position with file size
  std::streampos current_pos = m_file.tellg();
  m_file.seekg(0, std::ios::end);
  std::streampos end_pos = m_file.tellg();
  m_file.seekg(current_pos);
  
  if (current_pos >= end_pos) {
    m_eof_reached = true;
    return true;
  }
  
  m_eof_reached = false;
  return false;
}

next()

template<typename T >

std::vector< T > tpglibs::testapp::BinarySignalReader< T >::next

(

size_t

n

)

Read next chunk of data.

Parameters

n	Number of elements to read (actual bytes = n * sizeof(T))

Returns

Vector containing the read data

Exceptions

std::runtime_error

if read fails

Definition at line 27 of file BinarySignalReader.hxx.

                                                 {
  if (m_eof_reached || n == 0) {
    return std::vector<T>();
  }
  
  std::vector<T> result;
  result.reserve(n);
  
  for (size_t i = 0; i < n; ++i) {
    T value;
    m_file.read(reinterpret_cast<char*>(&value), sizeof(T));
    
    if (m_file.gcount() != sizeof(T)) {
      m_eof_reached = true;
      break;
    }
    
    result.push_back(value);
  }
  
  return result;
}

seekg()

template<typename T >

void tpglibs::testapp::BinarySignalReader< T >::seekg

(

std::streampos

pos

)

Seek to specific position.

Parameters

pos	Position to seek to

Definition at line 73 of file BinarySignalReader.hxx.

                                                  {
  m_file.seekg(pos);
  eof(); // Update m_eof_reached based on actual position
}

tellg()

template<typename T >

std::streampos tpglibs::testapp::BinarySignalReader< T >::tellg

(

)

Get current file position.

Returns

Current position in file

Definition at line 68 of file BinarySignalReader.hxx.

                                          {
  return m_file.tellg();
}

Member Data Documentation

m_eof_reached

template<typename T >

bool tpglibs::testapp::BinarySignalReader< T >::m_eof_reached

private

Definition at line 69 of file BinarySignalReader.hpp.

m_file

template<typename T >

std::ifstream tpglibs::testapp::BinarySignalReader< T >::m_file

private

Definition at line 68 of file BinarySignalReader.hpp.

---

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

• /github/workspace/dunedaq/sourcecode/tpglibs/include/tpglibs/testapp/reader/BinarySignalReader.hpp
• /github/workspace/dunedaq/sourcecode/tpglibs/include/tpglibs/testapp/reader/BinarySignalReader.hxx