Add sync primitives Notify and watch::channel

Cargo.toml

@@ -1,11 +1,12 @@
 [workspace]
 resolver = "2"
-members = ["asyncs-test"]
+members = ["asyncs-test", "asyncs-sync"]
 
 [workspace.package]
 license = "Apache-2.0"
 version = "0.2.1"
 edition = "2021"
+authors = ["Kezhu Wang <[email protected]>"]
 homepage = "https://github.com/kezhuw/asyncs"
 repository = "https://github.com/kezhuw/asyncs"
 documentation = "https://docs.rs/asyncs"
@@ -37,8 +38,9 @@ spawns-compat = ["spawns-core/compat"]
 [dependencies]
 async-select = "0.2.0"
 asyncs-test = { version = "0.2.1", path = "./asyncs-test", optional = true }
-spawns = { version = "0.2.3", optional = true }
-spawns-core = "1.1.0"
+asyncs-sync = { version = "0.2.1", path = "./asyncs-sync" }
+spawns = { version = "0.2.4", optional = true }
+spawns-core = "1.1.1"
 
 [dev-dependencies]
 test-case = "3.3.1"

Makefile

@@ -1,4 +1,4 @@
-verify: check build test
+verify: check build-all test
 
 check: check_fmt lint doc
 
@@ -12,10 +12,13 @@ lint:
 	cargo clippy --all-features --no-deps -- -D clippy::all
 
 build:
+	cargo build --workspace --all-features
+
+build-all:
 	cargo build-all-features
 
 test:
-	cargo test --all-features
+	cargo test --workspace --all-features
 
 doc:
 	cargo doc --all-features

asyncs-sync/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "asyncs-sync"
+description = "Asynchronous runtime agnostic synchronization utilities"
+readme.workspace = true
+authors.workspace = true
+edition.workspace = true
+version.workspace = true
+homepage.workspace = true
+license.workspace = true
+repository.workspace = true
+documentation.workspace = true
+
+[dependencies]
+
+[dev-dependencies]
+asyncs = { version = "0.2.1", path = "../", features = ["test"] }
+futures = "0.3.30"

asyncs-sync/src/lib.rs

@@ -0,0 +1,7 @@
+//! Utilities to synchronize among asynchronous tasks
+
+mod notify;
+mod parker;
+pub mod watch;
+
+pub use notify::*;