---
name: "Vector_BLF_MostDataLost"
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_MostDataLost"
---

# Vector\_BLF\_MostDataLost(3)

MOST\_DATALOST.

## NAME

Vector::BLF::MostDataLost - MOST\_DATALOST.

## SYNOPSIS

\#include \<MostDataLost.h\>

Inherits **Vector::BLF::ObjectHeader2**.

### Public Member Functions

void **read** (**AbstractFile** &is) override\
 void **write** (**AbstractFile** &os) override\
 uint32\_t **calculateObjectSize** () const override\

Public Member Functions inherited from **Vector::BLF::ObjectHeader2** **ObjectHeader2** (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

uint16\_t **channel** {}\
 application channel  uint16\_t **reservedMostDataLost** {}\
 uint32\_t **info** {}\
 info about data loss  uint32\_t **lostMsgsCtrl** {}\
 uint32\_t **lostMsgsAsync** {}\
 uint64\_t **lastGoodTimeStampNs** {}\
 uint64\_t **nextGoodTimeStampNs** {}\

Public Attributes inherited from **Vector::BLF::ObjectHeader2** uint32\_t **objectFlags** {**ObjectFlags::TimeOneNans**}\
 object flags  uint8\_t **timeStampStatus** {}\
 time stamp status  uint8\_t **reservedObjectHeader** {0}\
 uint16\_t **objectVersion** {0}\
 object specific version  uint64\_t **objectTimeStamp** {0}\
 object timestamp  uint64\_t **originalTimeStamp** {0}\
 original 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

### Additional Inherited Members

Public Types inherited from **Vector::BLF::ObjectHeader2** enum **ObjectFlags** : uint32\_t { **TimeTenMics** = 0x00000001, **TimeOneNans** = 0x00000002 }\
 enum **TimeStampStatus** : uint8\_t { **Orig** = 0x01, **SwHw** = 0x02, **User** = 0x10 }\

## Detailed Description

MOST\_DATALOST.

Indicates loss of data. (Number of lost messages and start and end time stamp of data loss.)

## Member Function Documentation

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

Calculates the objectSize

**Returns**

object size

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

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

Read the data of this object

**Parameters**

*is* input stream

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

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

Write the data of this object

**Parameters**

*os* output stream

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

## Member Data Documentation

### uint16\_t Vector::BLF::MostDataLost::channel {}

application channel Application channel

### uint32\_t Vector::BLF::MostDataLost::info {}

info about data loss Data loss information

- •

  Bit0: 1: data loss on control channel (spy)

- •

  Bit1: 1: data loss on control channel (node)

- •

  Bit2: 1: data loss on asynchronous channel (spy)

- •

  Bit3: 1: data loss on asynchronous channel (node)

- •

  Bit4: 1: data loss on synchronous channel

- •

  Bit5: 1: data loss since driver queue full

### uint64\_t Vector::BLF::MostDataLost::lastGoodTimeStampNs {}

Absolute time in nano-seconds

### uint32\_t Vector::BLF::MostDataLost::lostMsgsAsync {}

Number of lost messages on Packet Data Channel channel

### uint32\_t Vector::BLF::MostDataLost::lostMsgsCtrl {}

Number of lost messages on Control channel

### uint64\_t Vector::BLF::MostDataLost::nextGoodTimeStampNs {}

Absolute time in nano-seconds

### uint16\_t Vector::BLF::MostDataLost::reservedMostDataLost {}

reserved

## Author

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