edm::Guid Class Reference

#include <POOLCore/Guid.h>

Public Member Functions
Guid const &	fromBinary (std::string const &s)
	conversion from binary string representation More...
Guid const &	fromString (std::string const &s)
	conversion from formatted string representation More...
	Guid ()
	Standard constructor (With initializaton) More...
	Guid (bool usetime)
	Standard constructor (With initialization) More...
	Guid (char const *s, bool binary=false)
	Constructor for Guid from char*. More...
	Guid (Guid const &c)
	Copy constructor. More...
	Guid (std::string const &s, bool binary=false)
	Constructor for Guid from string. More...
bool	operator!= (Guid const &g) const
	Non-equality operator. More...
bool	operator< (Guid const &g) const
	Smaller operator. More...
Guid &	operator= (Guid const &g)
	Assignment operator. More...
bool	operator== (Guid const &g) const
	Equality operator. More...
const std::string	toBinary () const
	conversion to binary string reprentation More...
const std::string	toString () const
	conversion to formatted string reprentation More...

Private Member Functions
void	init (bool usetime=false)
	initialize a new Guid More...

Private Attributes
uuid_t	data_

Detailed Description

Description:

Encapsulation of a GUID/UUID/CLSID/IID data structure (128 bit number). Note: This class may not have a virual destructor

Author

M.Frank Initial version using COM on WIN32

Zhen Xie Include DCE implementation for linux

Version

1.1

Date

03/09/2002

Simplified by Dan Riley for CMS to use standard libuuid functions

Definition at line 26 of file Guid.h.

Constructor & Destructor Documentation

Guid() [1/5]

edm::Guid::Guid ( )

inline

Standard constructor (With initializaton)

Definition at line 29 of file Guid.h.

{ init(); }

References init().

Guid() [2/5]

edm::Guid::Guid ( bool  usetime )

inlineexplicit

Standard constructor (With initialization)

Definition at line 31 of file Guid.h.

{ init(usetime); }

References init().

Guid() [3/5]

edm::Guid::Guid ( char const *  s, bool  binary = false  )

inlineexplicit

Constructor for Guid from char*.

Definition at line 33 of file Guid.h.

{ binary ? fromBinary(s) : fromString(s); }

References fromBinary(), fromString(), and alignCSCRings::s.

Guid() [4/5]

edm::Guid::Guid ( std::string const &  s, bool  binary = false  )

inlineexplicit

Constructor for Guid from string.

Definition at line 35 of file Guid.h.

{ binary ? fromBinary(s) : fromString(s); }

References fromBinary(), fromString(), and alignCSCRings::s.

Guid() [5/5]

edm::Guid::Guid ( Guid const &  c )

inline

Copy constructor.

Definition at line 37 of file Guid.h.

{ *this = c; }

References HltBtagPostValidation_cff::c.

Member Function Documentation

fromBinary()

Guid const & edm::Guid::fromBinary

(

std::string const &

s

)

conversion from binary string representation

Definition at line 32 of file Guid.cc.

                                                      {
    assert(source.size() == sizeof(data_));
    std::memcpy(data_, source.data(), sizeof(data_));
    return *this;
  }

References cms::cuda::assert(), data_, and edm::source().

Referenced by Guid().

fromString()

Guid const & edm::Guid::fromString

(

std::string const &

s

)

conversion from formatted string representation

Definition at line 45 of file Guid.cc.

                                                      {
    auto err = ::uuid_parse(source.c_str(), data_);
    assert(err == 0);
    return *this;
  }

References cms::cuda::assert(), data_, submitPVResolutionJobs::err, and edm::source().

Referenced by Guid().

init()

void edm::Guid::init ( bool  usetime = false )

private

initialize a new Guid

Initialize a new Guid.

Definition at line 18 of file Guid.cc.

                              {
    if (usetime) {
      ::uuid_generate_time(data_);
    } else {
      // uuid_generate() defaults to uuid_generate_random() if /dev/urandom
      // is available; if /dev/urandom is not available, then it is better
      // to let uuid_generate() choose the best fallback rather than forcing
      // use of an inferior source of randomness
      ::uuid_generate(data_);
    }
  }

References data_.

Referenced by Guid().

operator!=()

bool edm::Guid::operator!= ( Guid const &  g ) const

inline

Non-equality operator.

Definition at line 55 of file Guid.h.

{ return !(this->operator==(g)); }

References operator==().

operator<()

bool edm::Guid::operator<

(

Guid const &

g

)

const

Smaller operator.

Definition at line 51 of file Guid.cc.

{ return ::uuid_compare(data_, g.data_) < 0; }

References data_, and g.

operator=()

Guid& edm::Guid::operator= ( Guid const &  g )

inline

Assignment operator.

Definition at line 39 of file Guid.h.

                                   {
      if (this != &g) {
        ::uuid_copy(data_, g.data_);
      }
      return *this;
    }

References data_, and g.

operator==()

bool edm::Guid::operator== ( Guid const &  g ) const

inline

Equality operator.

Definition at line 48 of file Guid.h.

                                         {
      if (this != &g) {
        return ::uuid_compare(data_, g.data_) == 0;
      }
      return true;
    }

References data_, and g.

Referenced by operator!=().

toBinary()

const std::string edm::Guid::toBinary

(

)

const

conversion to binary string reprentation

Definition at line 30 of file Guid.cc.

{ return std::string(reinterpret_cast<const char*>(data_), sizeof(data_)); }

References data_, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by edm::createGlobalIdentifier().

toString()

const std::string edm::Guid::toString

(

)

const

conversion to formatted string reprentation

Definition at line 38 of file Guid.cc.

                                       {
    char out[UUID_STR_LEN];
    ::uuid_unparse(data_, out);
    return std::string(out);
  }

References data_, MillePedeFileConverter_cfg::out, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by edm::createGlobalIdentifier().

Member Data Documentation

data_

uuid_t edm::Guid::data_

private

Definition at line 68 of file Guid.h.

Referenced by fromBinary(), fromString(), init(), operator<(), operator=(), operator==(), toBinary(), and toString().