---
name: "Vector_BLF_ObjectHeader"
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_ObjectHeader"
---

# Vector\_BLF\_ObjectHeader(3)

Object header.

## NAME

Vector::BLF::ObjectHeader - Object header.

## SYNOPSIS

\#include \<ObjectHeader.h\>

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

Inherited by **Vector::BLF::A429BusStatistic**, **Vector::BLF::A429Error**, **Vector::BLF::A429Message**, **Vector::BLF::A429Status**, **Vector::BLF::AfdxBusStatistic**, **Vector::BLF::AfdxErrorEvent**, **Vector::BLF::AfdxFrame**, **Vector::BLF::AfdxStatistic**, **Vector::BLF::AfdxStatus**, **Vector::BLF::AppText**, **Vector::BLF::AppTrigger**, **Vector::BLF::AttributeEvent**, **Vector::BLF::CanDriverError**, **Vector::BLF::CanDriverErrorExt**, **Vector::BLF::CanDriverHwSync**, **Vector::BLF::CanDriverStatistic**, **Vector::BLF::CanErrorFrame**, **Vector::BLF::CanErrorFrameExt**, **Vector::BLF::CanFdErrorFrame64**, **Vector::BLF::CanFdMessage**, **Vector::BLF::CanFdMessage64**, **Vector::BLF::CanMessage**, **Vector::BLF::CanMessage2**, **Vector::BLF::CanOverloadFrame**, **Vector::BLF::CanSettingChanged**, **Vector::BLF::DataLostBegin**, **Vector::BLF::DataLostEnd**, **Vector::BLF::DiagRequestInterpretation**, **Vector::BLF::DistributedObjectMember**, **Vector::BLF::DriverOverrun**, **Vector::BLF::EnvironmentVariable**, **Vector::BLF::EthernetErrorEx**, **Vector::BLF::EthernetErrorForwarded**, **Vector::BLF::EthernetFrame**, **Vector::BLF::EthernetFrameEx**, **Vector::BLF::EthernetFrameForwarded**, **Vector::BLF::EthernetRxError**, **Vector::BLF::EthernetStatistic**, **Vector::BLF::EthernetStatus**, **Vector::BLF::EventComment**, **Vector::BLF::FlexRayData**, **Vector::BLF::FlexRayStatusEvent**, **Vector::BLF::FlexRaySync**, **Vector::BLF::FlexRayV6Message**, **Vector::BLF::FlexRayV6StartCycleEvent**, **Vector::BLF::FlexRayVFrError**, **Vector::BLF::FlexRayVFrReceiveMsg**, **Vector::BLF::FlexRayVFrReceiveMsgEx**, **Vector::BLF::FlexRayVFrStartCycle**, **Vector::BLF::FlexRayVFrStatus**, **Vector::BLF::FunctionBus**, **Vector::BLF::GlobalMarker**, **Vector::BLF::GpsEvent**, **Vector::BLF::J1708Message**, **Vector::BLF::KLineStatusEvent**, **Vector::BLF::LinBaudrateEvent**, **Vector::BLF::LinChecksumInfo**, **Vector::BLF::LinCrcError**, **Vector::BLF::LinCrcError2**, **Vector::BLF::LinDisturbanceEvent**, **Vector::BLF::LinDlcInfo**, **Vector::BLF::LinLongDomSignalEvent**, **Vector::BLF::LinLongDomSignalEvent2**, **Vector::BLF::LinMessage**, **Vector::BLF::LinMessage2**, **Vector::BLF::LinReceiveError**, **Vector::BLF::LinReceiveError2**, **Vector::BLF::LinSchedulerModeChange**, **Vector::BLF::LinSendError**, **Vector::BLF::LinSendError2**, **Vector::BLF::LinShortOrSlowResponse**, **Vector::BLF::LinShortOrSlowResponse2**, **Vector::BLF::LinSlaveTimeout**, **Vector::BLF::LinSleepModeEvent**, **Vector::BLF::LinSpikeEvent**, **Vector::BLF::LinSpikeEvent2**, **Vector::BLF::LinStatisticEvent**, **Vector::BLF::LinSyncError**, **Vector::BLF::LinSyncError2**, **Vector::BLF::LinUnexpectedWakeup**, **Vector::BLF::LinWakeupEvent**, **Vector::BLF::LinWakeupEvent2**, **Vector::BLF::MostCtrl**, **Vector::BLF::MostLightLock**, **Vector::BLF::MostPkt**, **Vector::BLF::MostSpy**, **Vector::BLF::MostStatistic**, **Vector::BLF::RealtimeClock**, **Vector::BLF::RestorePointContainer**, **Vector::BLF::SerialEvent**, **Vector::BLF::SystemVariable**, **Vector::BLF::TestStructure**, **Vector::BLF::TriggerCondition**, **Vector::BLF::WaterMarkEvent**, **Vector::BLF::WlanFrame**, and **Vector::BLF::WlanStatistic**.

### Public Types

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

### Public Member Functions

**ObjectHeader** (const ObjectType **objectType**, const uint16\_t **objectVersion**=0)\
 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 **clientIndex** {}\
 client index of send node  uint16\_t **objectVersion** {0}\
 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

Object header.

Object header. Version 1.

## Member Enumeration Documentation

### enum Vector::BLF::ObjectHeader::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::ObjectHeader::calculateHeaderSize () const \[override\], \[virtual\]

Calculates the headerSize

**Returns**

header size

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

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

Calculates the objectSize

**Returns**

object size

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

Reimplemented in **Vector::BLF::RealtimeClock**, **Vector::BLF::RestorePointContainer**, **Vector::BLF::SerialEvent**, **Vector::BLF::SystemVariable**, **Vector::BLF::TestStructure**, **Vector::BLF::TriggerCondition**, **Vector::BLF::WaterMarkEvent**, **Vector::BLF::WlanFrame**, and **Vector::BLF::WlanStatistic**.

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

Read the data of this object

**Parameters**

*is* input stream

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

Reimplemented in **Vector::BLF::RealtimeClock**, **Vector::BLF::RestorePointContainer**, **Vector::BLF::SerialEvent**, **Vector::BLF::SystemVariable**, **Vector::BLF::TestStructure**, **Vector::BLF::TriggerCondition**, **Vector::BLF::WaterMarkEvent**, **Vector::BLF::WlanFrame**, and **Vector::BLF::WlanStatistic**.

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

Write the data of this object

**Parameters**

*os* output stream

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

Reimplemented in **Vector::BLF::RealtimeClock**, **Vector::BLF::RestorePointContainer**, **Vector::BLF::SerialEvent**, **Vector::BLF::SystemVariable**, **Vector::BLF::TestStructure**, **Vector::BLF::TriggerCondition**, **Vector::BLF::WaterMarkEvent**, **Vector::BLF::WlanFrame**, and **Vector::BLF::WlanStatistic**.

## Member Data Documentation

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

object flags Unit of object timestamp.

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

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

### uint16\_t Vector::BLF::ObjectHeader::objectVersion {0}

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

**Note**

can be set in event class constructor

## Author

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