saferlmdb 0.9.35

An almost-safe, near-zero-cost, feature-complete, unabashedly non-abstract wrapper around LMDB.
Documentation 
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// Copyright 2016 FullContact, Inc
// Copyright 2018 Jason Lingle, Inc
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use crate::dbi;
use crate::env;

pub fn create_env() -> env::Environment {
    unsafe {
        let mut builder = env::EnvBuilder::new().unwrap();
        builder.set_maxdbs(2).unwrap();
        builder
            .open(
                tempdir::TempDir::new_in(".", "lmdbzero")
                    .unwrap()
                    .path()
                    .to_str()
                    .unwrap(),
                &env::open::Flags::empty(),
                0o600,
            )
            .unwrap()
    }
}

#[allow(dead_code)]
pub fn dupdb(env: &'_ env::Environment) -> dbi::Database<'_> {
    dbi::Database::open(
        env,
        Some("example"),
        &dbi::DatabaseOptions::new(dbi::db::Flags::CREATE | dbi::db::Flags::DUPSORT),
    )
    .unwrap()
}

#[allow(dead_code)]
pub fn dupfixeddb(env: &'_ env::Environment) -> dbi::Database<'_> {
    dbi::Database::open(
        env,
        Some("example"),
        &dbi::DatabaseOptions::new(
            dbi::db::Flags::CREATE | dbi::db::Flags::DUPSORT | dbi::db::Flags::DUPFIXED,
        ),
    )
    .unwrap()
}

#[allow(dead_code)]
pub fn defdb(env: &'_ env::Environment) -> dbi::Database<'_> {
    dbi::Database::open(env, None, &dbi::DatabaseOptions::defaults()).unwrap()
}