---
name: "Vector_BLF_ObjectHeaderBase"
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_ObjectHeaderBase"
---

# Vector\_BLF\_ObjectHeaderBase(3)

Base object header type definition.

## NAME

Vector::BLF::ObjectHeaderBase - Base object header type definition.

## SYNOPSIS

\#include \<ObjectHeaderBase.h\>

Inherited by **Vector::BLF::LogContainer**, **Vector::BLF::ObjectHeader**, **Vector::BLF::ObjectHeader2**, and **Vector::BLF::VarObjectHeader**.

### Public Member Functions

**ObjectHeaderBase** (const uint16\_t **headerVersion**, const ObjectType **objectType**)\
 **ObjectHeaderBase** (const ObjectHeaderBase &)=default\
 ObjectHeaderBase & **operator=** (const ObjectHeaderBase &)=default\
 **ObjectHeaderBase** (ObjectHeaderBase &&)=default\
 ObjectHeaderBase & **operator=** (ObjectHeaderBase &&)=default\
 virtual void **read** (**AbstractFile** &is)\
 virtual void **write** (**AbstractFile** &os)\
 virtual uint16\_t **calculateHeaderSize** () const\
 virtual uint32\_t **calculateObjectSize** () const\

### Public Attributes

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

Base object header type definition.

Object header base structure.

## Member Function Documentation

### uint16\_t Vector::BLF::ObjectHeaderBase::calculateHeaderSize () const \[virtual\]

Calculates the headerSize

**Returns**

header size

Reimplemented in **Vector::BLF::ObjectHeader2**, **Vector::BLF::ObjectHeader**, and **Vector::BLF::VarObjectHeader**.

### uint32\_t Vector::BLF::ObjectHeaderBase::calculateObjectSize () const \[virtual\]

Calculates the objectSize

**Returns**

object size

Reimplemented in **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::CanFdMessage64**, **Vector::BLF::CanFdMessage**, **Vector::BLF::CanMessage2**, **Vector::BLF::CanMessage**, **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::LinCrcError2**, **Vector::BLF::LinCrcError**, **Vector::BLF::LinDisturbanceEvent**, **Vector::BLF::LinDlcInfo**, **Vector::BLF::LinLongDomSignalEvent2**, **Vector::BLF::LinLongDomSignalEvent**, **Vector::BLF::LinMessage2**, **Vector::BLF::LinMessage**, **Vector::BLF::LinReceiveError2**, **Vector::BLF::LinReceiveError**, **Vector::BLF::LinSchedulerModeChange**, **Vector::BLF::LinSendError2**, **Vector::BLF::LinSendError**, **Vector::BLF::LinShortOrSlowResponse2**, **Vector::BLF::LinShortOrSlowResponse**, **Vector::BLF::LinSlaveTimeout**, **Vector::BLF::LinSleepModeEvent**, **Vector::BLF::LinSpikeEvent2**, **Vector::BLF::LinSpikeEvent**, **Vector::BLF::LinStatisticEvent**, **Vector::BLF::LinSyncError2**, **Vector::BLF::LinSyncError**, **Vector::BLF::LinUnexpectedWakeup**, **Vector::BLF::LinWakeupEvent2**, **Vector::BLF::LinWakeupEvent**, **Vector::BLF::LogContainer**, **Vector::BLF::Most150AllocTab**, **Vector::BLF::Most150Message**, **Vector::BLF::Most150MessageFragment**, **Vector::BLF::Most150Pkt**, **Vector::BLF::Most150PktFragment**, **Vector::BLF::Most50Message**, **Vector::BLF::Most50Pkt**, **Vector::BLF::MostAllocTab**, **Vector::BLF::MostCtrl**, **Vector::BLF::MostDataLost**, **Vector::BLF::MostEcl**, **Vector::BLF::MostEthernetPkt**, **Vector::BLF::MostEthernetPktFragment**, **Vector::BLF::MostGenReg**, **Vector::BLF::MostHwMode**, **Vector::BLF::MostLightLock**, **Vector::BLF::MostNetState**, **Vector::BLF::MostPkt2**, **Vector::BLF::MostPkt**, **Vector::BLF::MostReg**, **Vector::BLF::MostSpy**, **Vector::BLF::MostStatistic**, **Vector::BLF::MostStatisticEx**, **Vector::BLF::MostStress**, **Vector::BLF::MostSystemEvent**, **Vector::BLF::MostTrigger**, **Vector::BLF::MostTxLight**, **Vector::BLF::ObjectHeader2**, **Vector::BLF::ObjectHeader**, **Vector::BLF::RealtimeClock**, **Vector::BLF::RestorePointContainer**, **Vector::BLF::SerialEvent**, **Vector::BLF::SystemVariable**, **Vector::BLF::TestStructure**, **Vector::BLF::TriggerCondition**, **Vector::BLF::VarObjectHeader**, **Vector::BLF::WaterMarkEvent**, **Vector::BLF::WlanFrame**, and **Vector::BLF::WlanStatistic**.

### void Vector::BLF::ObjectHeaderBase::read (AbstractFile & is) \[virtual\]

Read the data of this object

**Parameters**

*is* input stream

Reimplemented in **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::CanFdMessage64**, **Vector::BLF::CanFdMessage**, **Vector::BLF::CanMessage2**, **Vector::BLF::CanMessage**, **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::LinCrcError2**, **Vector::BLF::LinCrcError**, **Vector::BLF::LinDisturbanceEvent**, **Vector::BLF::LinDlcInfo**, **Vector::BLF::LinLongDomSignalEvent2**, **Vector::BLF::LinLongDomSignalEvent**, **Vector::BLF::LinMessage2**, **Vector::BLF::LinMessage**, **Vector::BLF::LinReceiveError2**, **Vector::BLF::LinReceiveError**, **Vector::BLF::LinSchedulerModeChange**, **Vector::BLF::LinSendError2**, **Vector::BLF::LinSendError**, **Vector::BLF::LinShortOrSlowResponse2**, **Vector::BLF::LinShortOrSlowResponse**, **Vector::BLF::LinSlaveTimeout**, **Vector::BLF::LinSleepModeEvent**, **Vector::BLF::LinSpikeEvent2**, **Vector::BLF::LinSpikeEvent**, **Vector::BLF::LinStatisticEvent**, **Vector::BLF::LinSyncError2**, **Vector::BLF::LinSyncError**, **Vector::BLF::LinUnexpectedWakeup**, **Vector::BLF::LinWakeupEvent2**, **Vector::BLF::LinWakeupEvent**, **Vector::BLF::LogContainer**, **Vector::BLF::Most150AllocTab**, **Vector::BLF::Most150Message**, **Vector::BLF::Most150MessageFragment**, **Vector::BLF::Most150Pkt**, **Vector::BLF::Most150PktFragment**, **Vector::BLF::Most50Message**, **Vector::BLF::Most50Pkt**, **Vector::BLF::MostAllocTab**, **Vector::BLF::MostCtrl**, **Vector::BLF::MostDataLost**, **Vector::BLF::MostEcl**, **Vector::BLF::MostEthernetPkt**, **Vector::BLF::MostEthernetPktFragment**, **Vector::BLF::MostGenReg**, **Vector::BLF::MostHwMode**, **Vector::BLF::MostLightLock**, **Vector::BLF::MostNetState**, **Vector::BLF::MostPkt2**, **Vector::BLF::MostPkt**, **Vector::BLF::MostReg**, **Vector::BLF::MostSpy**, **Vector::BLF::MostStatistic**, **Vector::BLF::MostStatisticEx**, **Vector::BLF::MostStress**, **Vector::BLF::MostSystemEvent**, **Vector::BLF::MostTrigger**, **Vector::BLF::MostTxLight**, **Vector::BLF::ObjectHeader2**, **Vector::BLF::ObjectHeader**, **Vector::BLF::RealtimeClock**, **Vector::BLF::RestorePointContainer**, **Vector::BLF::SerialEvent**, **Vector::BLF::SystemVariable**, **Vector::BLF::TestStructure**, **Vector::BLF::TriggerCondition**, **Vector::BLF::VarObjectHeader**, **Vector::BLF::WaterMarkEvent**, **Vector::BLF::WlanFrame**, and **Vector::BLF::WlanStatistic**.

### void Vector::BLF::ObjectHeaderBase::write (AbstractFile & os) \[virtual\]

Write the data of this object

**Parameters**

*os* output stream

Reimplemented in **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::CanFdMessage64**, **Vector::BLF::CanFdMessage**, **Vector::BLF::CanMessage2**, **Vector::BLF::CanMessage**, **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::LinCrcError2**, **Vector::BLF::LinCrcError**, **Vector::BLF::LinDisturbanceEvent**, **Vector::BLF::LinDlcInfo**, **Vector::BLF::LinLongDomSignalEvent2**, **Vector::BLF::LinLongDomSignalEvent**, **Vector::BLF::LinMessage2**, **Vector::BLF::LinMessage**, **Vector::BLF::LinReceiveError2**, **Vector::BLF::LinReceiveError**, **Vector::BLF::LinSchedulerModeChange**, **Vector::BLF::LinSendError2**, **Vector::BLF::LinSendError**, **Vector::BLF::LinShortOrSlowResponse2**, **Vector::BLF::LinShortOrSlowResponse**, **Vector::BLF::LinSlaveTimeout**, **Vector::BLF::LinSleepModeEvent**, **Vector::BLF::LinSpikeEvent2**, **Vector::BLF::LinSpikeEvent**, **Vector::BLF::LinStatisticEvent**, **Vector::BLF::LinSyncError2**, **Vector::BLF::LinSyncError**, **Vector::BLF::LinUnexpectedWakeup**, **Vector::BLF::LinWakeupEvent2**, **Vector::BLF::LinWakeupEvent**, **Vector::BLF::LogContainer**, **Vector::BLF::Most150AllocTab**, **Vector::BLF::Most150Message**, **Vector::BLF::Most150MessageFragment**, **Vector::BLF::Most150Pkt**, **Vector::BLF::Most150PktFragment**, **Vector::BLF::Most50Message**, **Vector::BLF::Most50Pkt**, **Vector::BLF::MostAllocTab**, **Vector::BLF::MostCtrl**, **Vector::BLF::MostDataLost**, **Vector::BLF::MostEcl**, **Vector::BLF::MostEthernetPkt**, **Vector::BLF::MostEthernetPktFragment**, **Vector::BLF::MostGenReg**, **Vector::BLF::MostHwMode**, **Vector::BLF::MostLightLock**, **Vector::BLF::MostNetState**, **Vector::BLF::MostPkt2**, **Vector::BLF::MostPkt**, **Vector::BLF::MostReg**, **Vector::BLF::MostSpy**, **Vector::BLF::MostStatistic**, **Vector::BLF::MostStatisticEx**, **Vector::BLF::MostStress**, **Vector::BLF::MostSystemEvent**, **Vector::BLF::MostTrigger**, **Vector::BLF::MostTxLight**, **Vector::BLF::ObjectHeader2**, **Vector::BLF::ObjectHeader**, **Vector::BLF::RealtimeClock**, **Vector::BLF::RestorePointContainer**, **Vector::BLF::SerialEvent**, **Vector::BLF::SystemVariable**, **Vector::BLF::TestStructure**, **Vector::BLF::TriggerCondition**, **Vector::BLF::VarObjectHeader**, **Vector::BLF::WaterMarkEvent**, **Vector::BLF::WlanFrame**, and **Vector::BLF::WlanStatistic**.

## Member Data Documentation

### uint16\_t Vector::BLF::ObjectHeaderBase::headerSize {}

sizeof object header Size of header in bytes, set this member to sizeof(ObjectHeader) or sizeof(ObjectHeader2) depending on the object header type used for the object.

### uint16\_t Vector::BLF::ObjectHeaderBase::headerVersion {}

header version (1) Version number of object header.

Set this member to 1 if the object has a member of type **ObjectHeader**.

Set this member to 2 if the object has a member of type **ObjectHeader2**.

**Note**

is set in ObjectHeader/ObjectHeader2

### uint32\_t Vector::BLF::ObjectHeaderBase::objectSize {}

object size Object size in bytes.

### ObjectType Vector::BLF::ObjectHeaderBase::objectType {ObjectType::UNKNOWN}

object type Object type.

**Note**

is set in each event class constructor

### uint32\_t Vector::BLF::ObjectHeaderBase::signature {ObjectSignature}

signature (ObjectSignature) Object signature, must be ObjectSignature.

## Author

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