FIFFLIB::FiffId Class Reference

128-bit FIFF identifier: hardware machine ID plus creation time, stamped on every file and block. More...

#include <fiff_id.h>

Public Types
using	SPtr = QSharedPointer<FiffId>
using	ConstSPtr = QSharedPointer<const FiffId>
using	UPtr = std::unique_ptr<FiffId>
using	ConstUPtr = std::unique_ptr<const FiffId>

Public Member Functions
	FiffId ()
	FiffId (const FiffId &p_FiffId)
	~FiffId ()
void	clear ()
void	print () const
bool	isEmpty () const
QString	toMachidString () const
QString	toString () const

Static Public Member Functions
static FiffId	new_file_id ()
static bool	get_machid (int *fixed_id)
static FiffId &	getDefault ()
static qint32	storageSize ()

Public Attributes
fiff_int_t	version
fiff_int_t	machid [2]
FiffTime	time

Friends
bool	operator== (const FiffId &f1, const FiffId &f2)

Detailed Description

128-bit FIFF identifier: hardware machine ID plus creation time, stamped on every file and block.

On-disk layout is a 20-byte record (version + 2x4-byte machine ID + 8-byte FiffTime). The machid is filled from the host MAC address by FiffStream::write_id when generating new identifiers, matching the Neuromag acquisition stack so file lineage stays reconstructible.

Definition at line 66 of file fiff_id.h.

Member Typedef Documentation

ConstSPtr

using FIFFLIB::FiffId::ConstSPtr = QSharedPointer<const FiffId>

Const shared pointer type for FiffId.

Definition at line 70 of file fiff_id.h.

ConstUPtr

using FIFFLIB::FiffId::ConstUPtr = std::unique_ptr<const FiffId>

Const unique pointer type for FiffId.

Definition at line 72 of file fiff_id.h.

SPtr

using FIFFLIB::FiffId::SPtr = QSharedPointer<FiffId>

Shared pointer type for FiffId.

Definition at line 69 of file fiff_id.h.

UPtr

using FIFFLIB::FiffId::UPtr = std::unique_ptr<FiffId>

Unique pointer type for FiffId.

Definition at line 71 of file fiff_id.h.

Constructor & Destructor Documentation

FiffId() [1/2]

FiffId::FiffId

(

)

Default Constructor

Definition at line 45 of file fiff_id.cpp.

FiffId() [2/2]

FiffId::FiffId

(

const FiffId &

p_FiffId

)

Copy constructor.

Parameters

[in]

p_FiffId

Universially unique identifier which should be copied.

Definition at line 56 of file fiff_id.cpp.

~FiffId()

FiffId::~FiffId

(

)

Destroys the universially unique identifier.

Definition at line 67 of file fiff_id.cpp.

Member Function Documentation

clear()

void FiffId::clear

(

)

Resets the File identifier.

Definition at line 103 of file fiff_id.cpp.

get_machid()

bool FiffId::get_machid ( int * fixed_id )

static

Returns the machine ID consisting of a two integer number.

Parameters

[out]

fixed_id

Pointer to an array of at least 2 ints to receive the machine ID.

Returns

true if succeeded, false otherwise.

Definition at line 114 of file fiff_id.cpp.

getDefault()

FiffId & FiffId::getDefault ( )

static

Returns a default FiffId object to be used as a mutable placeholder for a default instance of the class.

Returns

Reference to the default FiffId instance.

Definition at line 196 of file fiff_id.cpp.

isEmpty()

bool FIFFLIB::FiffId::isEmpty ( ) const

inline

True if FIFF id is empty.

Returns

true if FIFF id is empty.

Definition at line 187 of file fiff_id.h.

new_file_id()

FiffId FiffId::new_file_id ( )

static

Constructs a (hopefully) unique file id.

Returns

A new unique FiffId.

Definition at line 73 of file fiff_id.cpp.

print()

void FiffId::print

(

)

const

Prints the id.

Definition at line 152 of file fiff_id.cpp.

storageSize()

qint32 FIFFLIB::FiffId::storageSize ( )

inlinestatic

Size of the old struct (fiffIdRec) 5*int = 5*4 = 20

Returns

the size of the old struct fiffIdRec.

Definition at line 194 of file fiff_id.h.

toMachidString()

QString FiffId::toMachidString

(

)

const

Returns the machine ID as a human-readable string.

Returns

The machine ID formatted as a string.

Definition at line 161 of file fiff_id.cpp.

toString()

QString FiffId::toString

(

)

const

Returns a human-readable string representation of this ID.

Format: "major.minor 0xMACHID1MACHID2 timestamp"

Returns

Formatted string describing the ID.

Definition at line 204 of file fiff_id.cpp.

Friends And Related Symbol Documentation

operator==

bool operator== ( const FiffId & f1, const FiffId & f2 )

friend

Compares two FiffId instances for equality.

Parameters

[in]	f1	First FiffId.
[in]	f2	Second FiffId.

Returns

true if both IDs are equal, false otherwise.

Definition at line 201 of file fiff_id.h.

Member Data Documentation

machid

fiff_int_t FIFFLIB::FiffId::machid[2]

Unique machine ID.

Definition at line 178 of file fiff_id.h.

time

FiffTime FIFFLIB::FiffId::time

Time of the ID creation.

Definition at line 179 of file fiff_id.h.

version

fiff_int_t FIFFLIB::FiffId::version

File version.

Definition at line 177 of file fiff_id.h.

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

• src/libraries/fiff/fiff_id.h
• src/libraries/fiff/fiff_id.cpp