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Mercurial > core / rust/lib/db/src/lib.rs

changeset 698: 96958d3eb5b0
parent: f3d814fb136a
author: Richard Westhaver <ellis@rwest.io>
date: Fri, 04 Oct 2024 22:04:59 -0400
permissions: -rw-r--r--
description: fixes 
     1 //! db modules
     2 //!
     3 //! This library provides types and builder functions for working with
     4 //! databases. Currently the only backend supported is RocksDB.
     5 #![feature(associated_type_defaults)]
     6 use obj::Configure;
     7 #[cfg(feature = "rocksdb")]
     8 pub use rocksdb;
     9 use std::path::PathBuf;
    10 
    11 mod err;
    12 pub use err::{Error, Result};
    13 
    14 #[cfg(test)]
    15 mod tests;
    16 
    17 pub trait Db {
    18   #[cfg(feature = "rocksdb")]
    19   type DB = rocksdb::DB;
    20   #[cfg(not(feature = "rocksdb"))]
    21   type DB;
    22   fn db_init(&self) -> Result<Self::DB>;
    23   fn db_init_mut(&mut self) -> Result<()>;
    24   fn db_open(&self) -> Result<()>;
    25   fn db_close(&self) -> Result<()>;
    26   fn db_close_mut(&mut self) -> Result<()>;
    27   fn db_query(&self) -> Result<()>;
    28   fn db_transaction(&self) -> Result<()>;
    29 }
    30 
    31 pub trait DbConfigExt: Configure {
    32   fn db_path(self) -> Option<PathBuf>;
    33   fn db_user(self) -> Option<String>;
    34   fn set_db_config_value(&mut self, key: &str, val: &str) -> Option<String>;
    35   fn get_db_config_value(self, key: &str) -> Option<String>;
    36 }