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features
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7 changed files with 56 additions and 168 deletions
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@ -1,104 +1,18 @@
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[package]
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name = "tower"
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# When releasing to crates.io:
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# - Update doc url
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# - Cargo.toml
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# - README.md
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# - Update CHANGELOG.md.
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# - Create "vX.X.X" git tag.
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version = "0.4.13"
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authors = ["Tower Maintainers <team@tower-rs.com>"]
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license = "MIT"
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readme = "README.md"
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repository = "https://github.com/tower-rs/tower"
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homepage = "https://github.com/tower-rs/tower"
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documentation = "https://docs.rs/tower/0.4.13"
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description = """
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Tower is a library of modular and reusable components for building robust
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clients and servers.
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"""
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categories = ["asynchronous", "network-programming"]
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keywords = ["io", "async", "non-blocking", "futures", "service"]
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edition = "2018"
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rust-version = "1.49.0"
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[features]
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default = ["log"]
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# Internal
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__common = ["futures-core", "pin-project-lite"]
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full = [
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"balance",
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"buffer",
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"discover",
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"filter",
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"hedge",
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"limit",
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"load",
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"load-shed",
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"make",
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"ready-cache",
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"reconnect",
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"retry",
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"spawn-ready",
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"steer",
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"timeout",
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"util",
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]
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# FIXME: Use weak dependency once available (https://github.com/rust-lang/cargo/issues/8832)
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log = ["tracing/log"]
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balance = ["discover", "load", "ready-cache", "make", "rand", "slab"]
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buffer = ["__common", "tokio/sync", "tokio/rt", "tokio-util", "tracing"]
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discover = ["__common"]
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filter = ["__common", "futures-util"]
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hedge = ["util", "filter", "futures-util", "hdrhistogram", "tokio/time", "tracing"]
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limit = ["__common", "tokio/time", "tokio/sync", "tokio-util", "tracing"]
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load = ["__common", "tokio/time", "tracing"]
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load-shed = ["__common"]
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make = ["futures-util", "pin-project-lite", "tokio/io-std"]
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ready-cache = ["futures-core", "futures-util", "indexmap", "tokio/sync", "tracing", "pin-project-lite"]
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reconnect = ["make", "tokio/io-std", "tracing"]
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retry = ["__common", "tokio/time"]
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spawn-ready = ["__common", "futures-util", "tokio/sync", "tokio/rt", "util", "tracing"]
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steer = []
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timeout = ["pin-project-lite", "tokio/time"]
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util = ["__common", "futures-util", "pin-project"]
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[dependencies]
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futures-core = { version = "0.3", optional = true }
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futures-util = { version = "0.3", default-features = false, features = ["alloc"], optional = true }
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hdrhistogram = { version = "7.0", optional = true, default-features = false }
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indexmap = { version = "1.0.2", optional = true }
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rand = { version = "0.8", features = ["small_rng"], optional = true }
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slab = { version = "0.4", optional = true }
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tokio = { version = "1.6", optional = true, features = ["sync"] }
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tokio-stream = { version = "0.1.0", optional = true }
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tokio-util = { version = "0.7.0", default-features = false, optional = true }
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tracing = { version = "0.1.2", default-features = false, features = ["std"], optional = true }
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pin-project = { version = "1", optional = true }
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pin-project-lite = { version = "0.2.7", optional = true }
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[dev-dependencies]
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futures = "0.3"
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hdrhistogram = { version = "7.0", default-features = false }
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pin-project-lite = "0.2.7"
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tokio = { version = "1.6.2", features = ["macros", "sync", "test-util", "rt-multi-thread"] }
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tokio-stream = "0.1"
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tokio-test = "0.4"
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tower-test = { version = "0.4", path = "../tower-test" }
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tracing-subscriber = { version = "0.3", default-features = false, features = ["fmt", "ansi"] }
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http = "0.2"
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lazy_static = "1.4.0"
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[package.metadata.docs.rs]
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all-features = true
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rustdoc-args = ["--cfg", "docsrs"]
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[package.metadata.playground]
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features = ["full"]
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[[example]]
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name = "tower-balance"
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path = "examples/tower-balance.rs"
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required-features = ["full"]
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futures-core = { version = "0.3" }
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futures-util = { version = "0.3", default-features = false, features = [
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"alloc",
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] }
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rand = { version = "0.8", features = ["small_rng"] }
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slab = { version = "0.4" }
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tokio = { version = "1.6", features = ["sync", "time"] }
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tokio-stream = { version = "0.1.0" }
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tokio-util = { version = "0.7.0", default-features = false }
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@ -1,23 +1,15 @@
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use crate::discover::{Change, Discover};
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use crate::load::Load;
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use crate::make::MakeService;
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use futures_core::ready;
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use crate::Service;
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use futures_core::Stream;
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use futures_util::future::{self, TryFutureExt};
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use pin_project_lite::pin_project;
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use rand::{rngs::SmallRng, Rng, SeedableRng};
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use slab::Slab;
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use futures_util::future::{self};
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use std::hash::Hash;
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use std::marker::PhantomData;
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use std::{
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fmt,
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future::Future,
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pin::Pin,
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task::{Context, Poll},
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};
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use tokio::sync::oneshot;
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use crate::Service;
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use tracing::{debug, trace};
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pub struct Balance<D, Req> {
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_req: PhantomData<(D, Req)>,
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@ -1,4 +1,4 @@
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#![allow(warnings)]
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// #![allow(warnings)]
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#[macro_use]
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pub(crate) mod macros;
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@ -1,19 +1,11 @@
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#[cfg(any(
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feature = "util",
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feature = "spawn-ready",
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feature = "filter",
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feature = "make"
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))]
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macro_rules! opaque_future {
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($(#[$m:meta])* pub type $name:ident<$($param:ident),+> = $actual:ty;) => {
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pin_project_lite::pin_project! {
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$(#[$m])*
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pub struct $name<$($param),+> {
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#[pin]
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inner: $actual
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}
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$(#[$m])*
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pub struct $name<$($param),+> {
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inner: $actual
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}
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impl<$($param),+> $name<$($param),+> {
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pub(crate) fn new(inner: $actual) -> Self {
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Self {
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type Output = <$actual as std::future::Future>::Output;
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#[inline]
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fn poll(self: std::pin::Pin<&mut Self>, cx: &mut std::task::Context<'_>) -> std::task::Poll<Self::Output> {
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self.project().inner.poll(cx)
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todo!()
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}
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}
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}
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//! Contains [`MakeService`] which is a trait alias for a [`Service`] of [`Service`]s.
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use crate::sealed::Sealed;
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use std::fmt;
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use std::future::Future;
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use std::marker::PhantomData;
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use std::task::{Context, Poll};
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use crate::Service;
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