POSIXFileHandler Class Reference

#include <src/FileMgr/POSIXFileHandler.h>

Collaboration diagram for POSIXFileHandler:

Public Member Functions
	POSIXFileHandler (IMessageSvc *)
Io::open_t	openPOSIXFile (const std::string &n, const Io::IoFlags &f, const std::string &desc, Io::Fd &fd, void *&ptr)
Io::close_t	closePOSIXFile (Io::Fd fd)
Io::reopen_t	reopenPOSIXFile (Io::Fd fd, const Io::IoFlags &)

Private Attributes
MsgStream	m_log
int	m_level

Detailed Description

Definition at line 17 of file POSIXFileHandler.h.

Constructor & Destructor Documentation

POSIXFileHandler::POSIXFileHandler

(

IMessageSvc *

msg

)

Definition at line 15 of file POSIXFileHandler.cpp.

                                                     : m_log( msg, "POSIXFileHandler" )
{

  m_level = msg->outputLevel( "POSIXFileHandler" );
}

Member Function Documentation

Io::close_t POSIXFileHandler::closePOSIXFile

(

Io::Fd

fd

)

Definition at line 78 of file POSIXFileHandler.cpp.

{

  if ( m_log.level() <= MSG::DEBUG ) m_log << MSG::DEBUG << "closePOSIXFile(fd:" << fd << ")" << endmsg;

  if ( fd == -1 ) {
    m_log << MSG::ERROR << "Unable to close file: FD == -1 " << endmsg;
    return -1;
  }

  if ( close( fd ) != 0 ) {
    int ierr = errno;
    m_log << MSG::ERROR << "Error closing POSIX file with FD " << fd << strerror( ierr ) << endmsg;
    return -1;
  }

  return 0;
}

Io::open_t POSIXFileHandler::openPOSIXFile	(	const std::string &	n,
		const Io::IoFlags &	f,
		const std::string &	desc,
		Io::Fd &	fd,
		void *&	ptr
	)

Definition at line 23 of file POSIXFileHandler.cpp.

{

  m_log.setLevel( m_level );

  if ( m_log.level() <= MSG::DEBUG )
    m_log << MSG::DEBUG << "openPOSIXFile(\"" << n << "\"," << f << "," << desc << ")" << endmsg;

  ptr = nullptr;
  fd  = -1;

  int mm = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;

  fd       = open( n.c_str(), (int)f, mm );
  int ierr = errno;

  if ( fd == -1 ) {
    m_log << MSG::ERROR << "Error opening POSIX file \"" << n << "\": " << strerror( ierr ) << endmsg;
    return 1;
  }

  std::string m;
  if ( f.isRead() ) {
    m = "r";
  } else if ( f.isWrite() ) {
    if ( ( f & Io::APPEND ) ) {
      m = "a";
    } else {
      m = "w";
    }
  } else if ( f.isRdWr() ) {
    m = "r+";
  } else {
    m_log << MSG::ERROR << "unknown mode " << f << " when calling fdopen on " << n << endmsg;
    return 1;
  }

  if ( m_log.level() <= MSG::DEBUG ) m_log << MSG::DEBUG << "calling fdopen with mode " << m << endmsg;

  ptr  = fdopen( fd, m.c_str() );
  ierr = errno;

  if ( !ptr ) {
    m_log << MSG::ERROR << "Error calling fdopen on \"" << n << "\": " << strerror( ierr ) << endmsg;
    return 1;
  }

  m_log << MSG::DEBUG << "opened POSIX file, Fd: " << fd << "  FILE*: " << ptr << endmsg;

  return 0;
}

Io::reopen_t POSIXFileHandler::reopenPOSIXFile	(	Io::Fd	fd,
		const Io::IoFlags &
	)

Definition at line 99 of file POSIXFileHandler.cpp.

{

  m_log << MSG::ERROR << "reopen not implemented" << endmsg;
  return -1;
}

Member Data Documentation

int POSIXFileHandler::m_level

private

Definition at line 31 of file POSIXFileHandler.h.

MsgStream POSIXFileHandler::m_log

private

Definition at line 30 of file POSIXFileHandler.h.

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

• GaudiSvc/src/FileMgr/POSIXFileHandler.h
• GaudiSvc/src/FileMgr/POSIXFileHandler.cpp