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use crate::timeout::*;
use futures::{
future::{Future, TryFutureExt},
prelude::*,
stream,
};
use futures_retry::{FutureRetry, RetryPolicy};
use futures_stopwatch::try_stopwatch;
use rusoto_core::{ByteStream, RusotoError};
use rusoto_s3::*;
use snafu::futures::TryFutureExt as S;
use snafu::ResultExt;
use std::{marker::Unpin, path::PathBuf, sync::Arc, time::Duration};
use tokio::sync::Mutex;
use tokio_util::codec::{BytesCodec, FramedRead};
mod config;
pub mod err;
mod list_actions;
mod upload;
pub use list_actions::*;
pub use upload::*;
pub mod timeout;
pub use config::*;
pub use err::Error;
#[cfg(test)]
mod mock;
#[cfg(test)]
mod test;
#[derive(Clone)]
pub struct S3Algo<S> {
s3: S,
config: Config,
}
impl<S> S3Algo<S> {
pub fn new(s3: S) -> Self {
Self {
s3,
config: Config::default(),
}
}
pub fn with_config(s3: S, config: Config) -> Self {
Self { s3, config }
}
}
#[derive(Debug, Clone, Copy)]
pub struct RequestReport {
pub seq: usize,
pub bytes: u64,
pub total_time: Duration,
pub success_time: Duration,
pub attempts: usize,
pub est: f64,
}
pub async fn s3_single_request<F, G, R>(
future_factory: F,
size: Option<u64>,
) -> Result<(RequestReport, R), Error>
where
F: Fn() -> G + Unpin + Clone + Send + Sync + 'static,
G: Future<Output = Result<R, Error>> + Send,
{
let size = size.unwrap_or(0);
s3_request(
move || {
let factory = future_factory.clone();
async move { Ok((factory(), size)) }
},
10,
Arc::new(Mutex::new(TimeoutState::new(RequestConfig::default()))),
)
.await
}
pub(crate) async fn s3_request<F, G, H, T, R>(
future_factory: F,
n_retries: usize,
timeout: Arc<Mutex<T>>,
) -> Result<(RequestReport, R), Error>
where
F: Fn() -> G + Unpin + Clone + Send + Sync + 'static,
G: Future<Output = Result<(H, u64), Error>> + Send,
H: Future<Output = Result<R, Error>> + Send,
T: timeout::Timeout,
{
let mut attempts1 = 0;
let mut attempts2 = 0;
try_stopwatch(
FutureRetry::new(
move || {
let future_factory = future_factory.clone();
let timeout = timeout.clone();
async move {
attempts1 += 1;
let (request, len) = future_factory().await?;
let (est, timeout_value) = {
let t = timeout.lock().await;
(t.get_estimate(), t.get_timeout(len, attempts1))
};
try_stopwatch(
tokio::time::timeout(timeout_value, request)
.with_context(|| err::Timeout {})
.map(|result| result.and_then(|x| x)),
)
.map_ok(move |(response, success_time)| (response, success_time, len, est))
.await
}
},
{
move |e| {
attempts2 += 1;
if attempts2 > n_retries {
RetryPolicy::ForwardError(e)
} else {
RetryPolicy::WaitRetry(Duration::from_millis(200))
}
}
},
),
)
.await
.map(
move |(((response, success_time, bytes, est), attempts), total_time)| {
(
RequestReport {
seq: 0,
bytes,
total_time,
success_time,
attempts,
est,
},
response,
)
},
)
.map_err(|(err, _attempts)| err)
}
pub fn testing_s3_client() -> S3Client {
use rusoto_core::{credential::ProfileProvider, region::Region, HttpClient};
let client = HttpClient::new().unwrap();
let region = Region::Custom {
name: "minio".to_owned(),
endpoint: "http://localhost:9000".to_owned(),
};
let mut profile = ProfileProvider::new().unwrap();
profile.set_profile("testing");
rusoto_s3::S3Client::new_with(client, profile, region)
}