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#![cfg_attr(test, feature(test))]
#![deny(missing_docs)]
#![doc(html_root_url = "https://docs.rs/lmdb-rkv/0.10.0")]
extern crate libc;
extern crate lmdb_sys as ffi;
#[cfg(test)] extern crate rand;
#[cfg(test)] extern crate tempdir;
#[cfg(test)] extern crate test;
#[macro_use] extern crate bitflags;
pub use cursor::{
Cursor,
RoCursor,
RwCursor,
Iter,
IterDup,
};
pub use database::Database;
pub use environment::{Environment, Stat, EnvironmentBuilder};
pub use error::{Error, Result};
pub use flags::*;
pub use transaction::{
InactiveTransaction,
RoTransaction,
RwTransaction,
Transaction,
};
macro_rules! lmdb_try {
($expr:expr) => ({
match $expr {
::ffi::MDB_SUCCESS => (),
err_code => return Err(::Error::from_err_code(err_code)),
}
})
}
macro_rules! lmdb_try_with_cleanup {
($expr:expr, $cleanup:expr) => ({
match $expr {
::ffi::MDB_SUCCESS => (),
err_code => {
let _ = $cleanup;
return Err(::Error::from_err_code(err_code))
},
}
})
}
mod flags;
mod cursor;
mod database;
mod environment;
mod error;
mod transaction;
#[cfg(test)]
mod test_utils {
extern crate byteorder;
use self::byteorder::{ByteOrder, LittleEndian};
use tempdir::TempDir;
use super::*;
pub fn get_key(n: u32) -> String {
format!("key{}", n)
}
pub fn get_data(n: u32) -> String {
format!("data{}", n)
}
pub fn setup_bench_db<'a>(num_rows: u32) -> (TempDir, Environment) {
let dir = TempDir::new("test").unwrap();
let env = Environment::new().open(dir.path()).unwrap();
{
let db = env.open_db(None).unwrap();
let mut txn = env.begin_rw_txn().unwrap();
for i in 0..num_rows {
txn.put(db, &get_key(i), &get_data(i), WriteFlags::empty()).unwrap();
}
txn.commit().unwrap();
}
(dir, env)
}
#[test]
fn issue_21_regression() {
const HEIGHT_KEY: [u8; 1] = [0];
let dir = TempDir::new("test").unwrap();
let env = {
let mut builder = Environment::new();
builder.set_max_dbs(2);
builder.set_map_size(1_000_000);
builder.open(dir.path()).expect("open lmdb env")
};
let index = env.create_db(None, DatabaseFlags::DUP_SORT).expect("open index db");
for height in 0..1000 {
let mut value = [0u8; 8];
LittleEndian::write_u64(&mut value, height);
let mut tx = env.begin_rw_txn().expect("begin_rw_txn");
tx.put(index,
&HEIGHT_KEY,
&value,
WriteFlags::empty()).expect("tx.put");
tx.commit().expect("tx.commit")
}
}
}