omedusyo/minisql
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Prepare for garbage collection

Browse source
This commit is contained in:
Yuriy Dupyn 2024-02-03 23:45:55 +01:00
parent 0f98903759
commit daa39850f0
3 changed files with 115 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

5
storage_engine/src/store_header.rs
View file

@ -5,6 +5,8 @@ use std::mem::size_of;
#[derive(Debug, Clone)]
pub struct StoreHeader {
pub table_folder: String, // This one is not encoded into the file
pub number_of_columns: usize,
pub deleted_count: usize,
pub total_count: usize,
@ -35,7 +37,7 @@ impl StoreHeader {
[0; StoreHeader::SIZE]
}
pub async fn decode(result: &mut [u8]) -> Result<StoreHeader> {
pub async fn decode(table_folder: &str, result: &mut [u8]) -> Result<StoreHeader> {
let (number_of_columns, _) =
decode::<usize>(&result[Self::NUMBER_OF_COLUMNS_OFFSET..Self::NUMBER_OF_COLUMNS_OFFSET + Self::NUMBER_OF_COLUMNS_SIZE])
.map_err(|e| Error::DecodeError(DecodeErrorKind::StoreHeaderNumberOfColumns, e))?;
@ -49,6 +51,7 @@ impl StoreHeader {
decode::<Column>(&result[Self::PRIMARY_COLUMN_OFFSET..Self::PRIMARY_COLUMN_OFFSET + Self::PRIMARY_COLUMN_SIZE])
.map_err(|e| Error::DecodeError(DecodeErrorKind::StoreHeaderPrimaryColumn, e))?;
let header = StoreHeader {
table_folder: table_folder.to_string(),
number_of_columns,
deleted_count,
total_count,