atomic_output Class Reference

#include <PileUpMTAlg.h>

Collaboration diagram for atomic_output:

Public Member Functions
	atomic_output ()=default
bool	init (const std::string &filename)
	~atomic_output ()
void	print (const std::string &str)

Private Attributes
std::FILE *	m_file {}
std::mutex	m_mtx {}

Detailed Description

Definition at line 33 of file PileUpMTAlg.h.

Constructor & Destructor Documentation

atomic_output()

atomic_output::atomic_output ( )

default

~atomic_output()

atomic_output::~atomic_output ( )

inline

Definition at line 56 of file PileUpMTAlg.h.

                   {
    std::lock_guard lck{m_mtx};
    if (m_file != nullptr) {
      std::fclose(m_file);
      m_file = nullptr;
    }
  }

Member Function Documentation

init()

bool atomic_output::init ( const std::string &  filename )

inline

Definition at line 40 of file PileUpMTAlg.h.

                                       {
    using namespace std::chrono;
    std::lock_guard lck{m_mtx};
    if (m_file != nullptr) {
      return true;
    }
    m_file = std::fopen(filename.c_str(), "a");
    if (m_file == nullptr) {
      return false;
    }
    auto time = system_clock::now();
    auto header = std::format("FILE CREATED ON {:%Y-%m-%d} at {:%H:%M:%S %Z}\n",
                              time, time);
    std::fputs(header.c_str(), m_file);
    return true;
  }

print()

void atomic_output::print ( const std::string &  str )

inline

Definition at line 64 of file PileUpMTAlg.h.

                                   {
    std::lock_guard lck{m_mtx};
    std::fputs(str.c_str(), m_file);
    std::fflush(m_file);
  }

Member Data Documentation

m_file

std::FILE* atomic_output::m_file {}

private

Definition at line 35 of file PileUpMTAlg.h.

m_mtx

std::mutex atomic_output::m_mtx {}

private

Definition at line 36 of file PileUpMTAlg.h.

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

• PileUpMTAlg.h