IIoSvc Class Reference

is a registry of file handles, storing their name and openmode. More...

#include <IIoSvc.h>

Inheritance diagram for IIoSvc:

Collaboration diagram for IIoSvc:

Public Types
enum	IoType {   INVALID = 0 , READ = 1<<1 , UPDATE = 1<<2 , CREATE = 1<<3 ,   RECREATE = (1<<4)+(1<<3) }
	I/O Connection types. More...
typedef int	Fd
	unix-y file descriptor

Public Member Functions
	DeclareInterfaceID (IIoSvc, 1, 0)
	InterfaceID.
virtual	~IIoSvc ()
	Destructor:
virtual Fd	open (const std::string &fname, IoType mode)=0
	open file fname with open mode mode
virtual StatusCode	close (Fd fd)=0
	close file fd
virtual bool	has_fd (Fd fd) const =0
	test if a given file descriptor fd is known to us
virtual Fd	fd (const std::string &fname) const =0
	retrieve the file descriptor associated with file fname
virtual const std::string &	fname (Fd fd) const =0
	retrieve the file fname associated with file descriptor fd
virtual IoType	mode (Fd fd) const =0
	retrieve the open mode associated with file descriptor fd

Static Public Member Functions
static const std::string &	IoTypeName (IoType mode)
static IoType	IoTypeFromName (const std::string &name)

Detailed Description

is a registry of file handles, storing their name and openmode.

Definition at line 27 of file IIoSvc.h.

Member Typedef Documentation

Fd

typedef int IIoSvc::Fd

unix-y file descriptor

Definition at line 38 of file IIoSvc.h.

Member Enumeration Documentation

IoType

enum IIoSvc::IoType

I/O Connection types.

Enumerator
INVALID
READ
UPDATE
CREATE
RECREATE

Definition at line 41 of file IIoSvc.h.

                { 
    INVALID  = 0,
    READ     = 1<<1,
    UPDATE   = 1<<2,
    CREATE   = 1<<3,
    RECREATE = (1<<4)+(1<<3) 
  };

Constructor & Destructor Documentation

~IIoSvc()

IIoSvc::~IIoSvc ( )

virtual

Destructor:

Definition at line 17 of file IIoSvc.cxx.

{}

Member Function Documentation

close()

virtual StatusCode IIoSvc::close ( Fd fd )

pure virtual

close file fd

DeclareInterfaceID()

IIoSvc::DeclareInterfaceID	(	IIoSvc	,
		1	,
		0	)

InterfaceID.

fd()

virtual Fd IIoSvc::fd ( const std::string & fname ) const

pure virtual

retrieve the file descriptor associated with file fname

Returns

-1 if no such fname is known

fname()

virtual const std::string & IIoSvc::fname ( Fd fd ) const

pure virtual

retrieve the file fname associated with file descriptor fd

Returns

empty string if no such fd is known

has_fd()

virtual bool IIoSvc::has_fd ( Fd fd ) const

pure virtual

test if a given file descriptor fd is known to us

IoTypeFromName()

IoType IIoSvc::IoTypeFromName ( const std::string & name )

inlinestatic

Definition at line 63 of file IIoSvc.h.

                                               {
    static std::map<std::string, IoType> s_names;
    if (s_names.empty()) {
      s_names[""] = INVALID;
      s_names["READ"] = READ;
      s_names["UPDATE"] = UPDATE;
      s_names["CREATE"] = CREATE;
      s_names["RECREATE"] = RECREATE;
    }
    return s_names[name];
  }

IoTypeName()

const std::string & IIoSvc::IoTypeName ( IoType mode )

inlinestatic

Definition at line 50 of file IIoSvc.h.

                                           {
    static std::map<IoType, std::string> s_names;
    if (s_names.empty()) {
      s_names[INVALID] = "";
      s_names[READ] = "READ";
      s_names[UPDATE] = "UPDATE";
      s_names[CREATE] = "CREATE";
      s_names[RECREATE] = "RECREATE";
    }
    return s_names[mode];
  }

mode()

virtual IoType IIoSvc::mode ( Fd fd ) const

pure virtual

retrieve the open mode associated with file descriptor fd

open()

virtual Fd IIoSvc::open ( const std::string & fname, IoType mode )

pure virtual

open file fname with open mode mode

Returns

-1 if not successful

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

• IIoSvc.h
• IIoSvc.cxx