---
name: "Vector_BLF_VarObjectHeader"
section: "3"
platform: "linux"
package: "vector-blf"
version: "2.4.2-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Vector_BLF_VarObjectHeader"
---

# Vector\_BLF\_VarObjectHeader(3)

Extended base object header type definition with dynamic extendible objects.

## NAME

Vector::BLF::VarObjectHeader - Extended base object header type definition with dynamic extendible objects.

## SYNOPSIS

\#include \<VarObjectHeader.h\>

Inherits **Vector::BLF::ObjectHeaderBase**.

### Public Types

enum **ObjectFlags** : uint32\_t { **TimeTenMics** = 0x00000001, **TimeOneNans** = 0x00000002 }\

### Public Member Functions

**VarObjectHeader** (const ObjectType **objectType**)\
 void **read** (**AbstractFile** &is) override\
 void **write** (**AbstractFile** &os) override\
 uint16\_t **calculateHeaderSize** () const override\
 uint32\_t **calculateObjectSize** () const override\

Public Member Functions inherited from **Vector::BLF::ObjectHeaderBase** **ObjectHeaderBase** (const uint16\_t **headerVersion**, const ObjectType **objectType**)\
 **ObjectHeaderBase** (const ObjectHeaderBase &)=default\
 ObjectHeaderBase & **operator=** (const ObjectHeaderBase &)=default\
 **ObjectHeaderBase** (ObjectHeaderBase &&)=default\
 ObjectHeaderBase & **operator=** (ObjectHeaderBase &&)=default\

### Public Attributes

uint32\_t **objectFlags** {**ObjectFlags::TimeOneNans**}\
 object flags  uint16\_t **objectStaticSize** {}\
 size of the static part of the object  uint16\_t **objectVersion** {}\
 object specific version  uint64\_t **objectTimeStamp** {}\
 object timestamp

Public Attributes inherited from **Vector::BLF::ObjectHeaderBase** uint32\_t **signature** {ObjectSignature}\
 signature (ObjectSignature)  uint16\_t **headerSize** {}\
 sizeof object header  uint16\_t **headerVersion** {}\
 header version (1)  uint32\_t **objectSize** {}\
 object size  ObjectType **objectType** {ObjectType::UNKNOWN}\
 object type

## Detailed Description

Extended base object header type definition with dynamic extendible objects.

## Member Enumeration Documentation

### enum Vector::BLF::VarObjectHeader::ObjectFlags : uint32\_t

enumeration for objectFlags

**Enumerator**

- ***TimeTenMics***

  10 micro second timestamp Object time stamp is saved as multiple of ten microseconds. (BL\_OBJ\_FLAG\_TIME\_TEN\_MICS)

- ***TimeOneNans***

  1 nano second timestamp Object time stamp is saved in nanoseconds. (BL\_OBJ\_FLAG\_TIME\_ONE\_NANS)

## Member Function Documentation

### uint16\_t Vector::BLF::VarObjectHeader::calculateHeaderSize () const \[override\], \[virtual\]

Calculates the headerSize

**Returns**

header size

Reimplemented from **Vector::BLF::ObjectHeaderBase**.

### uint32\_t Vector::BLF::VarObjectHeader::calculateObjectSize () const \[override\], \[virtual\]

Calculates the objectSize

**Returns**

object size

Reimplemented from **Vector::BLF::ObjectHeaderBase**.

### void Vector::BLF::VarObjectHeader::read (AbstractFile & is) \[override\], \[virtual\]

Read the data of this object

**Parameters**

*is* input stream

Reimplemented from **Vector::BLF::ObjectHeaderBase**.

### void Vector::BLF::VarObjectHeader::write (AbstractFile & os) \[override\], \[virtual\]

Write the data of this object

**Parameters**

*os* output stream

Reimplemented from **Vector::BLF::ObjectHeaderBase**.

## Member Data Documentation

### uint32\_t Vector::BLF::VarObjectHeader::objectFlags {ObjectFlags::TimeOneNans}

object flags Unit of object timestamp.

### uint64\_t Vector::BLF::VarObjectHeader::objectTimeStamp {}

object timestamp Time stamp of this object in the unit specified in objectFlags.

### uint16\_t Vector::BLF::VarObjectHeader::objectVersion {}

object specific version Object specific version, has to be set to 0 unless stated otherwise in the description of a specific event.

## Author

Generated automatically by Doxygen for Vector BLF from the source code.