---
name: "Vector_BLF_FileStatistics"
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_FileStatistics"
---

# Vector\_BLF\_FileStatistics(3)

## NAME

Vector::BLF::FileStatistics

## SYNOPSIS

\#include \<FileStatistics.h\>

### Public Member Functions

**FileStatistics** (const FileStatistics &)=default\
 FileStatistics & **operator=** (const FileStatistics &)=default\
 **FileStatistics** (FileStatistics &&)=default\
 FileStatistics & **operator=** (FileStatistics &&)=default\
 virtual void **read** (**AbstractFile** &is)\
 virtual void **write** (**AbstractFile** &os)\
 uint32\_t **calculateStatisticsSize** () const\

### Public Attributes

uint32\_t **signature** {FileSignature}\
 uint32\_t **statisticsSize** {**calculateStatisticsSize**()}\
 uint32\_t **apiNumber** { 4080200 }\
 uint8\_t **applicationId** {}\
 uint8\_t **compressionLevel** {1}\
 uint8\_t **applicationMajor** {}\
 uint8\_t **applicationMinor** {}\
 uint64\_t **fileSize** {}\
 uint64\_t **uncompressedFileSize** {}\
 uint32\_t **objectCount** {}\
 uint32\_t **applicationBuild** {}\
 **SYSTEMTIME** **measurementStartTime** {}\
 **SYSTEMTIME** **lastObjectTime** {}\
 uint64\_t **restorePointsOffset** {}\
 std::array\< uint32\_t, 16 \> **reservedFileStatistics** {}\

## Detailed Description

**File** statistics

## Member Function Documentation

### uint32\_t Vector::BLF::FileStatistics::calculateStatisticsSize () const

Calculates the statisticsSize

**Returns**

statistics size

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

read file statistics

**Parameters**

*is* input stream

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

write file statistics

**Parameters**

*os* output stream

## Member Data Documentation

### uint32\_t Vector::BLF::FileStatistics::apiNumber { 4080200 }

BL API number

This consists of major, minor, build, patch. It's encoded as such: major \* 1000000 + minor \* 1000 + build \* 100 + patch. Example: 4010608 decodes to 4.1.6.8.

### uint32\_t Vector::BLF::FileStatistics::applicationBuild {}

application build number

**Todo**

The BL API function takes an uint8\_t argument here.

### uint8\_t Vector::BLF::FileStatistics::applicationId {}

application ID

### uint8\_t Vector::BLF::FileStatistics::applicationMajor {}

application major number

### uint8\_t Vector::BLF::FileStatistics::applicationMinor {}

application minor number

### uint8\_t Vector::BLF::FileStatistics::compressionLevel {1}

compression level

**Note**

zlib defines maximum compression level 9. All files that show 10 here, actually have LogContainers with compression level 6, which is default for Vector BLF.

### uint64\_t Vector::BLF::FileStatistics::fileSize {}

(compressed) file size in bytes

### SYSTEMTIME Vector::BLF::FileStatistics::lastObjectTime {}

last object time

### SYSTEMTIME Vector::BLF::FileStatistics::measurementStartTime {}

measurement start time

### uint32\_t Vector::BLF::FileStatistics::objectCount {}

number of objects

### std::array\<uint32\_t, 16\> Vector::BLF::FileStatistics::reservedFileStatistics {}

reserved

### uint64\_t Vector::BLF::FileStatistics::restorePointsOffset {}

**Note**

The following variables are based on observations, as there is no public documentation available. This variable designates the file position of the (first) **LogContainer** that contains the **RestorePointContainer** objects.

If **RestorePoints** are not used, this defaults to 0.

**See also**

**RestorePointContainer**

### uint32\_t Vector::BLF::FileStatistics::signature {FileSignature}

signature (signature)

### uint32\_t Vector::BLF::FileStatistics::statisticsSize {calculateStatisticsSize()}

sizeof(FileStatistics)

### uint64\_t Vector::BLF::FileStatistics::uncompressedFileSize {}

uncompressed file size in bytes

## Author

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