holochain_sqlite 0.7.0-dev.16

Abstractions for persistence of Holochain state via SQLite
Documentation 
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use crate::{
    db::{DbKindT, Txn},
    error::DatabaseError,
};
use rusqlite::OptionalExtension;

pub fn get_size_on_disk<K: DbKindT>(txn: &Txn<K>) -> Result<usize, DatabaseError> {
    Ok(txn
        .query_row("select sum(pgsize) from dbstat", (), |r| r.get(0))
        .optional()
        .map_err(DatabaseError::SqliteError)?
        .unwrap_or_default())
}

pub fn get_used_size<K: DbKindT>(txn: &Txn<K>) -> Result<usize, DatabaseError> {
    Ok(txn
        .query_row("select sum(pgsize - unused) from dbstat", (), |r| r.get(0))
        .optional()
        .map_err(DatabaseError::SqliteError)?
        .unwrap_or_default())
}