You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
2.4 KiB
106 lines
2.4 KiB
//! Idiomatic and safe APIs for interacting with the
|
|
//! [Lightning Memory-mapped Database (LMDB)](https://symas.com/lmdb).
|
|
|
|
#![deny(missing_docs)]
|
|
#![doc(html_root_url = "https://docs.rs/lmdb-rkv/0.12.0")]
|
|
|
|
extern crate byteorder;
|
|
extern crate libc;
|
|
extern crate lmdb_sys as ffi;
|
|
|
|
#[cfg(test)]
|
|
extern crate tempdir;
|
|
#[macro_use]
|
|
extern crate bitflags;
|
|
|
|
pub use cursor::{
|
|
Cursor,
|
|
Iter,
|
|
IterDup,
|
|
RoCursor,
|
|
RwCursor,
|
|
};
|
|
pub use database::Database;
|
|
pub use environment::{
|
|
Environment,
|
|
EnvironmentBuilder,
|
|
Info,
|
|
Stat,
|
|
};
|
|
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 cursor;
|
|
mod database;
|
|
mod environment;
|
|
mod error;
|
|
mod flags;
|
|
mod transaction;
|
|
|
|
#[cfg(test)]
|
|
mod test_utils {
|
|
|
|
use byteorder::{
|
|
ByteOrder,
|
|
LittleEndian,
|
|
};
|
|
use tempdir::TempDir;
|
|
|
|
use super::*;
|
|
|
|
/// Regression test for https://github.com/danburkert/lmdb-rs/issues/21.
|
|
/// This test reliably segfaults when run against lmbdb compiled with opt level -O3 and newer
|
|
/// GCC compilers.
|
|
#[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")
|
|
}
|
|
}
|
|
}
|
|
|