From 939c761acbb92f8d690c47d0bdf14ec9f4e3a290 Mon Sep 17 00:00:00 2001
From: fakeshadow <24548779@qq.com>
Date: Mon, 23 Nov 2020 20:54:28 +0800
Subject: [PATCH] add blocking feature flag for actix-rt

---
 actix-rt/Cargo.toml | 10 +++++++---
 actix-rt/src/lib.rs |  1 +
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/actix-rt/Cargo.toml b/actix-rt/Cargo.toml
index b7d272cd..7826b7d5 100644
--- a/actix-rt/Cargo.toml
+++ b/actix-rt/Cargo.toml
@@ -15,12 +15,16 @@ edition = "2018"
 name = "actix_rt"
 path = "src/lib.rs"
 
+[features]
+default = ["blocking"]
+blocking = ["actix-threadpool"]
+
 [dependencies]
 actix-macros = "0.1.0"
-actix-threadpool = "0.3"
-futures-channel = { version = "0.3.4", default-features = false }
-futures-util = { version = "0.3.4", default-features = false, features = ["alloc"] }
+actix-threadpool = { version = "0.3", optional = true }
 copyless = "0.1.4"
+futures-channel = "0.3.4"
+futures-util = { version = "0.3.4", default-features = false, features = ["alloc"] }
 smallvec = "1"
 tokio = { version = "0.2.6", default-features = false, features = ["rt-core", "rt-util", "io-driver", "tcp", "uds", "udp", "time", "signal", "stream"] }
 
diff --git a/actix-rt/src/lib.rs b/actix-rt/src/lib.rs
index aef78f12..bf9094c9 100644
--- a/actix-rt/src/lib.rs
+++ b/actix-rt/src/lib.rs
@@ -16,6 +16,7 @@ pub use self::runtime::Runtime;
 pub use self::system::System;
 
 #[doc(hidden)]
+#[cfg(feature = "blocking")]
 pub use actix_threadpool as blocking;
 
 /// Spawns a future on the current arbiter.