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 16 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 95 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 27 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 124 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 32 of file POSIXFileHandler.h.

MsgStream POSIXFileHandler::m_log

private

Definition at line 31 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