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lib.rs

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  • lib.rs 3.06 KiB
    //  Copyright (C) 2017-2019  The AXIOM TEAM Association.
    //
    // This program is free software: you can redistribute it and/or modify
    // it under the terms of the GNU Affero General Public License as
    // published by the Free Software Foundation, either version 3 of the
    // License, or (at your option) any later version.
    //
    // This program is distributed in the hope that it will be useful,
    // but WITHOUT ANY WARRANTY; without even the implied warranty of
    // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    // GNU Affero General Public License for more details.
    //
    // You should have received a copy of the GNU Affero General Public License
    // along with this program.  If not, see <https://www.gnu.org/licenses/>.
    
    //! BlockChain Datas Access Layer in Read-Only mode.
    
    #![allow(clippy::large_enum_variant)]
    #![deny(
        missing_docs,
        missing_copy_implementations,
        trivial_casts,
        trivial_numeric_casts,
        unsafe_code,
        unstable_features,
        unused_import_braces,
        unused_qualifications
    )]
    
    pub mod blocks;
    pub mod constants;
    pub mod currency_params;
    pub mod current_frame;
    pub mod current_meta_datas;
    pub mod indexes;
    pub mod paging;
    pub mod tools;
    
    pub use durs_dbs_tools::kv_db::{
        KvFileDbRead as DbReadable, KvFileDbRoHandler as BcDbRo, KvFileDbSchema, KvFileDbStoreType,
        KvFileDbValue as DbValue, Readable as DbReader,
    };
    
    use constants::*;
    use durs_dbs_tools::DbError;
    use maplit::hashmap;
    use std::path::Path;
    
    #[inline]
    /// Get BlockChain DB Schema
    pub fn bc_db_schema() -> KvFileDbSchema {
        KvFileDbSchema {
            stores: hashmap![
                CURRENT_METAS_DATAS.to_owned() => KvFileDbStoreType::SingleIntKey,
                CURRENT_FRAME_MEMBERS.to_owned() => KvFileDbStoreType::SingleIntKey,
                MAIN_BLOCKS.to_owned() => KvFileDbStoreType::SingleIntKey,
                FORK_BLOCKS.to_owned() => KvFileDbStoreType::Single,
                ORPHAN_BLOCKSTAMP.to_owned() => KvFileDbStoreType::Single,
                IDENTITIES.to_owned() => KvFileDbStoreType::SingleIntKey,
                MBS_BY_CREATED_BLOCK.to_owned() => KvFileDbStoreType::MultiIntKey,
                CERTS_BY_CREATED_BLOCK.to_owned() => KvFileDbStoreType::MultiIntKey,
                WOT_ID_INDEX.to_owned() => KvFileDbStoreType::Single,
                DIVIDENDS.to_owned() => KvFileDbStoreType::Multi,
                UTXOS.to_owned() => KvFileDbStoreType::Single,
                CONSUMED_UTXOS.to_owned() => KvFileDbStoreType::SingleIntKey,
            ],
        }
    }
    
    /// Open database
    #[inline]
    pub fn open_db_ro(path: &Path) -> Result<BcDbRo, DbError> {
        BcDbRo::open_db_ro(path, &bc_db_schema())
    }
    
    #[cfg(test)]
    pub mod tests {
        use super::*;
        use durs_dbs_tools::kv_db::KvFileDbHandler;
        pub use durs_dbs_tools::kv_db::KvFileDbWriter as DbWriter;
        use tempfile::tempdir;
    
        #[inline]
        /// Open database in an arbitrary temporary directory given by OS
        /// and automatically cleaned when `Db` is dropped
        pub fn open_tmp_db() -> Result<KvFileDbHandler, DbError> {
            KvFileDbHandler::open_db(
                tempdir().map_err(DbError::FileSystemError)?.path(),
                &bc_db_schema(),
            )
        }
    }