From a16f4e4e382655ae40f3edf6c6d63d9db4148d2b Mon Sep 17 00:00:00 2001
From: Lee Smet <lee.smet@hotmail.com>
Date: Fri, 9 Feb 2024 11:41:37 +0100
Subject: [PATCH] Reduce tokio feature scope

Instead of using "full", we now only use the features we need. This
removes a few downstream dependencies, shortening build times slightly.

This also means the "parking_lot" feature is no longer enabled. It is
generally accepted that the default std::sync::Mutex which is now used
again by tokio is faster for the general case than the parking_lot mutex
implementation.

Signed-off-by: Lee Smet <lee.smet@hotmail.com>
---
 Cargo.lock | 49 -------------------------------------------------
 Cargo.toml | 10 +++++++++-
 2 files changed, 9 insertions(+), 50 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 18ba4f9..62aec60 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -906,16 +906,6 @@ version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "01cda141df6706de531b6c46c3a33ecca755538219bd484262fa09410c13539c"
 
-[[package]]
-name = "lock_api"
-version = "0.4.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c168f8615b12bc01f9c17e2eb0cc07dcae1940121185446edc3744920e8ef45"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "log"
 version = "0.4.20"
@@ -1178,29 +1168,6 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
-[[package]]
-name = "parking_lot"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
-dependencies = [
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.9.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c42a9226546d68acdd9c0a280d17ce19bfe27a46bf68784e4066115788d008e"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "smallvec",
- "windows-targets 0.48.5",
-]
-
 [[package]]
 name = "paste"
 version = "1.0.14"
@@ -1402,15 +1369,6 @@ dependencies = [
  "yasna",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4722d768eff46b75989dd134e5c353f0d6296e5aaa3132e776cbdb56be7731aa"
-dependencies = [
- "bitflags 1.3.2",
-]
-
 [[package]]
 name = "regex"
 version = "1.10.3"
@@ -1625,12 +1583,6 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
 
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
-
 [[package]]
 name = "sct"
 version = "0.7.1"
@@ -1908,7 +1860,6 @@ dependencies = [
  "libc",
  "mio",
  "num_cpus",
- "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
diff --git a/Cargo.toml b/Cargo.toml
index af31d9a..26099d0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,15 @@ license-file = "LICENSE"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-tokio = { version = "1.36.0", features = ["full"] }
+tokio = { version = "1.36.0", features = [
+  "fs",
+  "macros",
+  "net",
+  "rt-multi-thread",
+  "signal",
+  "sync",
+  "time",
+] }
 tokio-util = { version = "0.7.10", features = ["codec"] }
 clap = { version = "4.4.8", features = ["derive"] }
 futures = "0.3.29"