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#![deny(missing_docs)]
#![cfg_attr(test, deny(warnings))]
#![cfg_attr(feature="clippy", feature(plugin))]
#![cfg_attr(feature="clippy", plugin(clippy))]
#![cfg_attr(feature="clippy", allow(inline_always))]
#[macro_use]
extern crate serde_derive;
extern crate serde;
extern crate crossbeam_epoch as epoch;
extern crate bincode;
extern crate historian;
#[macro_use]
extern crate lazy_static;
#[cfg(feature = "env_logger")]
extern crate env_logger;
#[macro_use]
extern crate log as _log;
#[cfg(feature = "rayon")]
extern crate rayon;
#[cfg(feature = "zstd")]
extern crate zstd;
#[cfg(feature = "cpuprofiler")]
extern crate cpuprofiler;
#[cfg(any(test, feature = "lock_free_delays"))]
extern crate rand;
#[cfg(unix)]
extern crate libc;
pub use ds::{Radix, Stack};
pub use config::{Config, ConfigBuilder};
pub use io::*;
macro_rules! rep_no_copy {
($e:expr; $n:expr) => {
{
let mut v = Vec::with_capacity($n);
for _ in 0..$n {
v.push($e);
}
v
}
};
}
pub mod ds;
mod io;
mod config;
mod hash;
mod metrics;
use metrics::Metrics;
use ds::*;
use hash::{crc16_arr, crc64};
pub type SegmentID = usize;
pub type LogID = u64;
pub type Lsn = isize;
pub type PageID = usize;
type HPtr<'g, P> = epoch::Shared<'g, ds::stack::Node<io::CacheEntry<P>>>;
lazy_static! {
pub static ref M: Metrics = Metrics::default();
}
fn clock() -> f64 {
let u = uptime();
(u.as_secs() * 1_000_000_000) as f64 + f64::from(u.subsec_nanos())
}
fn uptime() -> std::time::Duration {
lazy_static! {
static ref START: std::time::Instant = std::time::Instant::now();
}
START.elapsed()
}
#[inline(always)]
pub fn debug_delay() {
#[cfg(any(test, feature = "lock_free_delays"))]
{
use rand::{Rng, thread_rng};
if thread_rng().gen_weighted_bool(1000) {
std::thread::sleep(std::time::Duration::from_millis(10));
}
}
}
fn global_init() {
use std::sync::{ONCE_INIT, Once};
static ONCE: Once = ONCE_INIT;
ONCE.call_once(|| {
#[cfg(feature = "env_logger")]
{
let format = |record: &_log::LogRecord| {
format!(
"{:05} {:10} {:10} {}",
record.level(),
tn(),
record.location().module_path().split("::").last().unwrap(),
record.args()
)
};
let mut builder = env_logger::LogBuilder::new();
builder.format(format).filter(
None,
_log::LogLevelFilter::Info,
);
if std::env::var("RUST_LOG").is_ok() {
builder.parse(&std::env::var("RUST_LOG").unwrap());
}
let _r = builder.init();
}
#[cfg(feature = "cpuprofiler")]
{
use std::env;
let key = "CPUPROFILE";
let path = match env::var(key) {
Ok(val) => val,
Err(_) => "sled.profile".to_owned(),
};
cpuprofiler::PROFILER.lock().unwrap().start(path).expect(
"could not start cpu profiler!",
);
}
});
}