edm::ThreadSafeOutputFileStream Class Reference

#include <ThreadSafeOutputFileStream.h>

Public Member Functions
	operator bool () const
	ThreadSafeOutputFileStream (std::string const &name)
void	write (std::string &&msg)
	~ThreadSafeOutputFileStream ()

Private Attributes
std::ofstream	file_
std::atomic< bool >	msgBeingLogged_ {false}
tbb::concurrent_queue < std::string >	waitingMessages_ {}

Detailed Description

Definition at line 11 of file ThreadSafeOutputFileStream.h.

Constructor & Destructor Documentation

edm::ThreadSafeOutputFileStream::ThreadSafeOutputFileStream

(

std::string const &

name

)

Definition at line 7 of file ThreadSafeOutputFileStream.cc.

    : file_{name}
  {}

edm::ThreadSafeOutputFileStream::~ThreadSafeOutputFileStream

(

)

Definition at line 11 of file ThreadSafeOutputFileStream.cc.

References file_, AlCaHLTBitMon_QueryRunRegistry::string, tmp, and waitingMessages_.

  {
    std::string tmp;
    while (waitingMessages_.try_pop(tmp)) {
      file_ << tmp;
    }
    file_.close();
  }

Member Function Documentation

edm::ThreadSafeOutputFileStream::operator bool ( ) const

inlineexplicit

Definition at line 17 of file ThreadSafeOutputFileStream.h.

References file_.

{ return static_cast<bool>(file_); }

void edm::ThreadSafeOutputFileStream::write

(

std::string &&

msg

)

Definition at line 21 of file ThreadSafeOutputFileStream.cc.

References file_, eostools::move(), visualization-live-secondInstance_cfg::msg, msgBeingLogged_, AlCaHLTBitMon_QueryRunRegistry::string, tmp, and waitingMessages_.

Referenced by pkg.AbstractPkg::generate(), edm::service::StallMonitor::postBeginJob(), edm::service::StallMonitor::postEvent(), edm::service::StallMonitor::postEventReadFromSource(), edm::service::StallMonitor::postModuleEvent(), edm::service::StallMonitor::postModuleEventPrefetching(), edm::service::StallMonitor::postSourceEvent(), edm::service::StallMonitor::preEvent(), edm::service::StallMonitor::preEventReadFromSource(), edm::service::StallMonitor::preModuleEvent(), edm::service::StallMonitor::preSourceEvent(), and edm::service::StallMonitor::StallMonitor().

  {
    waitingMessages_.push(std::move(msg));
    bool expected {false};
    if (msgBeingLogged_.compare_exchange_strong(expected, true)) {
      std::string tmp;
      while (waitingMessages_.try_pop(tmp)) {
        file_ << tmp;
      }
      msgBeingLogged_.store(false);
    }
  }

Member Data Documentation

std::ofstream edm::ThreadSafeOutputFileStream::file_

private

Definition at line 20 of file ThreadSafeOutputFileStream.h.

Referenced by operator bool(), write(), and ~ThreadSafeOutputFileStream().

std::atomic<bool> edm::ThreadSafeOutputFileStream::msgBeingLogged_ {false}

private

Definition at line 21 of file ThreadSafeOutputFileStream.h.

Referenced by write().

tbb::concurrent_queue<std::string> edm::ThreadSafeOutputFileStream::waitingMessages_ {}

private

Definition at line 22 of file ThreadSafeOutputFileStream.h.

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