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96
CHANGELOG.md
96
CHANGELOG.md
@@ -6,6 +6,102 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
|
||||
|
||||
## [Unreleased]
|
||||
|
||||
## [0.7.5] - 2025-07-24
|
||||
|
||||
### Added
|
||||
- print big inner
|
||||
|
||||
### Other
|
||||
- more error correction
|
||||
- correct error test to not be as verbose
|
||||
|
||||
## [0.7.4] - 2025-07-24
|
||||
|
||||
### Added
|
||||
- cleanup aggregate error for single error
|
||||
|
||||
## [0.7.3] - 2025-07-24
|
||||
|
||||
### Added
|
||||
- automatic conversion from anyhow::Error and access to aggregate errors
|
||||
|
||||
### Fixed
|
||||
- *(deps)* update all dependencies (#30)
|
||||
|
||||
## [0.7.2] - 2025-06-25
|
||||
|
||||
### Added
|
||||
- add wait
|
||||
- add conditional, allows adding or waiting for close
|
||||
|
||||
### Fixed
|
||||
- *(deps)* update rust crate async-trait to v0.1.86 (#28)
|
||||
- *(deps)* update rust crate rand to 0.9.0 (#27)
|
||||
- *(deps)* update rust crate thiserror to v2.0.11 (#26)
|
||||
- *(deps)* update all dependencies (#25)
|
||||
- *(deps)* update rust crate async-trait to v0.1.84 (#24)
|
||||
- *(deps)* update rust crate thiserror to v2.0.9 (#22)
|
||||
- *(deps)* update rust crate thiserror to v2.0.8 (#21)
|
||||
- *(deps)* update rust crate thiserror to v2.0.7 (#20)
|
||||
- *(deps)* update rust crate thiserror to v2.0.6 (#19)
|
||||
- *(deps)* update rust crate thiserror to v2.0.5 (#18)
|
||||
- *(deps)* update rust crate tokio-util to v0.7.13 (#17)
|
||||
|
||||
### Other
|
||||
- chore
|
||||
|
||||
- *(deps)* update all dependencies (#29)
|
||||
- *(deps)* update rust crate anyhow to v1.0.95 (#23)
|
||||
- *(deps)* update all dependencies (#16)
|
||||
- *(deps)* update rust crate tracing-subscriber to v0.3.19 (#15)
|
||||
- *(deps)* update rust crate tracing to v0.1.41 (#13)
|
||||
|
||||
## [0.7.1] - 2024-11-24
|
||||
|
||||
### Fixed
|
||||
- make sure to close on final
|
||||
|
||||
## [0.7.0] - 2024-11-24
|
||||
|
||||
### Added
|
||||
- actually bubble up errors
|
||||
|
||||
### Fixed
|
||||
- *(deps)* update rust crate thiserror to v2 (#9)
|
||||
|
||||
## [0.6.0] - 2024-11-23
|
||||
|
||||
### Added
|
||||
- adding test to make sure we can gracefully shutdown
|
||||
- make sure to close down properly
|
||||
|
||||
## [0.5.0] - 2024-11-19
|
||||
|
||||
### Added
|
||||
- update name
|
||||
- respect sigterm
|
||||
- include author
|
||||
- update with rename
|
||||
|
||||
### Docs
|
||||
- add examples
|
||||
|
||||
## [0.4.0] - 2024-08-07
|
||||
|
||||
### Added
|
||||
- add correction
|
||||
- add small docs
|
||||
|
||||
## [0.3.0] - 2024-08-07
|
||||
|
||||
### Added
|
||||
- add add_fn to execute immediate lambdas
|
||||
|
||||
## [0.2.1] - 2024-08-07
|
||||
|
||||
### Docs
|
||||
- add a small readme
|
||||
|
||||
## [0.2.0] - 2024-08-07
|
||||
|
||||
### Added
|
||||
|
||||
291
Cargo.lock
generated
291
Cargo.lock
generated
@@ -1,21 +1,21 @@
|
||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
version = 4
|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
"gimli",
|
||||
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|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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||||
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|
||||
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||||
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||||
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||||
|
||||
[[package]]
|
||||
name = "aho-corasick"
|
||||
@@ -28,15 +28,15 @@ dependencies = [
|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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||||
|
||||
[[package]]
|
||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
"quote",
|
||||
@@ -45,23 +45,23 @@ dependencies = [
|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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||||
|
||||
[[package]]
|
||||
name = "backtrace"
|
||||
version = "0.3.73"
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||||
version = "0.3.74"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "5cc23269a4f8976d0a4d2e7109211a419fe30e8d88d677cd60b6bc79c5732e0a"
|
||||
checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
|
||||
dependencies = [
|
||||
"addr2line",
|
||||
"cc",
|
||||
"cfg-if",
|
||||
"libc",
|
||||
"miniz_oxide",
|
||||
"object",
|
||||
"rustc-demangle",
|
||||
"windows-targets",
|
||||
]
|
||||
|
||||
[[package]]
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||||
@@ -78,15 +78,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
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||||
|
||||
[[package]]
|
||||
name = "bytes"
|
||||
version = "1.7.1"
|
||||
version = "1.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "8318a53db07bb3f8dca91a600466bdb3f2eaadeedfdbcf02e1accbad9271ba50"
|
||||
|
||||
[[package]]
|
||||
name = "cc"
|
||||
version = "1.1.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "26a5c3fd7bfa1ce3897a3a3501d362b2d87b7f2583ebcb4a949ec25911025cbc"
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checksum = "9ac0150caa2ae65ca5bd83f25c7de183dea78d4d366469f148435e2acfbad0da"
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||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
@@ -96,9 +90,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
|
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|
||||
[[package]]
|
||||
name = "futures"
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||||
version = "0.3.30"
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||||
version = "0.3.31"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "645c6916888f6cb6350d2550b80fb63e734897a8498abe35cfb732b6487804b0"
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checksum = "65bc07b1a8bc7c85c5f2e110c476c7389b4554ba72af57d8445ea63a576b0876"
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||||
dependencies = [
|
||||
"futures-channel",
|
||||
"futures-core",
|
||||
@@ -111,9 +105,9 @@ dependencies = [
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||||
|
||||
[[package]]
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||||
name = "futures-channel"
|
||||
version = "0.3.30"
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version = "0.3.31"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "eac8f7d7865dcb88bd4373ab671c8cf4508703796caa2b1985a9ca867b3fcb78"
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checksum = "2dff15bf788c671c1934e366d07e30c1814a8ef514e1af724a602e8a2fbe1b10"
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dependencies = [
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||||
"futures-core",
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||||
"futures-sink",
|
||||
@@ -121,15 +115,15 @@ dependencies = [
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|
||||
[[package]]
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||||
name = "futures-core"
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||||
version = "0.3.30"
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version = "0.3.31"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dfc6580bb841c5a68e9ef15c77ccc837b40a7504914d52e47b8b0e9bbda25a1d"
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checksum = "05f29059c0c2090612e8d742178b0580d2dc940c837851ad723096f87af6663e"
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||||
|
||||
[[package]]
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||||
name = "futures-executor"
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version = "0.3.30"
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version = "0.3.31"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a576fc72ae164fca6b9db127eaa9a9dda0d61316034f33a0a0d4eda41f02b01d"
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checksum = "1e28d1d997f585e54aebc3f97d39e72338912123a67330d723fdbb564d646c9f"
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||||
dependencies = [
|
||||
"futures-core",
|
||||
"futures-task",
|
||||
@@ -138,15 +132,15 @@ dependencies = [
|
||||
|
||||
[[package]]
|
||||
name = "futures-io"
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||||
version = "0.3.30"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a44623e20b9681a318efdd71c299b6b222ed6f231972bfe2f224ebad6311f0c1"
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checksum = "9e5c1b78ca4aae1ac06c48a526a655760685149f0d465d21f37abfe57ce075c6"
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|
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[[package]]
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dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
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@@ -155,21 +149,21 @@ dependencies = [
|
||||
|
||||
[[package]]
|
||||
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|
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[[package]]
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||||
[[package]]
|
||||
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||||
|
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[[package]]
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|
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||||
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|
||||
"libc",
|
||||
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|
||||
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|
||||
"windows-targets",
|
||||
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||||
|
||||
[[package]]
|
||||
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||||
|
||||
[[package]]
|
||||
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|
||||
@@ -206,6 +201,17 @@ version = "0.3.9"
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||||
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|
||||
|
||||
[[package]]
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||||
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||||
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[[package]]
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|
||||
[[package]]
|
||||
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||||
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[[package]]
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||||
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||||
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|
||||
checksum = "3268f3d866458b787f390cf61f4bbb563b922d091359f9608842999eaee3943c"
|
||||
dependencies = [
|
||||
"bitflags",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerocopy"
|
||||
version = "0.7.35"
|
||||
@@ -803,7 +830,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
|
||||
dependencies = [
|
||||
"byteorder",
|
||||
"zerocopy-derive",
|
||||
"zerocopy-derive 0.7.35",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerocopy"
|
||||
version = "0.8.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a367f292d93d4eab890745e75a778da40909cab4d6ff8173693812f79c4a2468"
|
||||
dependencies = [
|
||||
"zerocopy-derive 0.8.14",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
@@ -816,3 +852,14 @@ dependencies = [
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerocopy-derive"
|
||||
version = "0.8.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d3931cb58c62c13adec22e38686b559c86a30565e16ad6e8510a337cedc611e1"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
@@ -3,7 +3,7 @@ members = ["crates/*"]
|
||||
resolver = "2"
|
||||
|
||||
[workspace.package]
|
||||
version = "0.2.0"
|
||||
version = "0.7.5"
|
||||
|
||||
[workspace.dependencies]
|
||||
mad = { path = "crates/mad" }
|
||||
|
||||
168
README.md
Normal file
168
README.md
Normal file
@@ -0,0 +1,168 @@
|
||||
# MAD - Lifecycle Manager for Rust Applications
|
||||
|
||||
[](https://crates.io/crates/notmad)
|
||||
[](https://docs.rs/notmad)
|
||||
[](https://opensource.org/licenses/MIT)
|
||||
|
||||
## Overview
|
||||
|
||||
MAD is a robust lifecycle manager designed for long-running Rust operations. It provides a simple, composable way to manage multiple concurrent services within your application, handling graceful startup and shutdown automatically.
|
||||
|
||||
### Perfect for:
|
||||
- 🌐 Web servers
|
||||
- 📨 Queue consumers and message processors
|
||||
- 🔌 gRPC servers
|
||||
- ⏰ Cron job runners
|
||||
- 🔄 Background workers
|
||||
- 📡 Any long-running async operations
|
||||
|
||||
## Features
|
||||
|
||||
- **Component-based architecture** - Build your application from composable, reusable components
|
||||
- **Graceful shutdown** - Automatic handling of shutdown signals with proper cleanup
|
||||
- **Concurrent execution** - Run multiple components in parallel with tokio
|
||||
- **Error handling** - Built-in error propagation and logging
|
||||
- **Cancellation tokens** - Coordinate shutdown across all components
|
||||
- **Minimal boilerplate** - Focus on your business logic, not lifecycle management
|
||||
|
||||
## Installation
|
||||
|
||||
Add MAD to your `Cargo.toml`:
|
||||
|
||||
```toml
|
||||
[dependencies]
|
||||
notmad = "0.7.5"
|
||||
tokio = { version = "1", features = ["full"] }
|
||||
async-trait = "0.1"
|
||||
```
|
||||
|
||||
## Quick Start
|
||||
|
||||
Here's a simple example of a component that simulates a long-running server:
|
||||
|
||||
```rust
|
||||
use mad::{Component, Mad};
|
||||
use async_trait::async_trait;
|
||||
use tokio_util::sync::CancellationToken;
|
||||
|
||||
// Define your component
|
||||
struct WebServer {
|
||||
port: u16,
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl Component for WebServer {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some(format!("WebServer on port {}", self.port))
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), mad::MadError> {
|
||||
println!("Starting web server on port {}", self.port);
|
||||
|
||||
// Your server logic here
|
||||
// The cancellation token will be triggered on shutdown
|
||||
tokio::select! {
|
||||
_ = cancellation.cancelled() => {
|
||||
println!("Shutting down web server");
|
||||
}
|
||||
_ = self.serve() => {
|
||||
println!("Server stopped");
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl WebServer {
|
||||
async fn serve(&self) {
|
||||
// Simulate a running server
|
||||
tokio::time::sleep(std::time::Duration::from_secs(3600)).await;
|
||||
}
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
// Build and run your application
|
||||
Mad::builder()
|
||||
.add(WebServer { port: 8080 })
|
||||
.add(WebServer { port: 8081 }) // You can add multiple instances
|
||||
.run()
|
||||
.await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
```
|
||||
|
||||
## Advanced Usage
|
||||
|
||||
### Custom Components
|
||||
|
||||
Components can be anything that implements the `Component` trait:
|
||||
|
||||
```rust
|
||||
use mad::{Component, Mad};
|
||||
use async_trait::async_trait;
|
||||
|
||||
struct QueueProcessor {
|
||||
queue_name: String,
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl Component for QueueProcessor {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some(format!("QueueProcessor-{}", self.queue_name))
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), mad::MadError> {
|
||||
while !cancellation.is_cancelled() {
|
||||
// Process messages from queue
|
||||
self.process_next_message().await?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### Error Handling
|
||||
|
||||
MAD provides comprehensive error handling through the `MadError` type with automatic conversion from `anyhow::Error`:
|
||||
|
||||
```rust
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), mad::MadError> {
|
||||
// Errors automatically convert from anyhow::Error to MadError
|
||||
database_operation().await?;
|
||||
|
||||
// Or return explicit errors
|
||||
if some_condition {
|
||||
return Err(anyhow::anyhow!("Something went wrong").into());
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
```
|
||||
|
||||
## Examples
|
||||
|
||||
Check out the [examples directory](crates/mad/examples) for more detailed examples:
|
||||
|
||||
- **basic** - Simple component lifecycle
|
||||
- **fn** - Using functions as components
|
||||
- **signals** - Handling system signals
|
||||
- **error_log** - Error handling and logging
|
||||
|
||||
## Contributing
|
||||
|
||||
Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.
|
||||
|
||||
## License
|
||||
|
||||
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
|
||||
|
||||
## Author
|
||||
|
||||
Created and maintained by [kjuulh](https://github.com/kjuulh)
|
||||
|
||||
## Repository
|
||||
|
||||
Find the source code at [https://github.com/kjuulh/mad](https://github.com/kjuulh/mad)
|
||||
@@ -1,18 +1,23 @@
|
||||
[package]
|
||||
name = "mad"
|
||||
name = "notmad"
|
||||
version.workspace = true
|
||||
edition = "2021"
|
||||
description = "notmad is a life-cycle manager for long running rust operations"
|
||||
license = "MIT"
|
||||
repository = "https://github.com/kjuulh/mad"
|
||||
authors = ["kjuulh"]
|
||||
edition = "2024"
|
||||
|
||||
[dependencies]
|
||||
anyhow.workspace = true
|
||||
async-trait = "0.1.81"
|
||||
futures = "0.3.30"
|
||||
futures-util = "0.3.30"
|
||||
rand = "0.8.5"
|
||||
thiserror = "1.0.63"
|
||||
rand = "0.9.0"
|
||||
thiserror = "2.0.0"
|
||||
tokio.workspace = true
|
||||
tokio-util = "0.7.11"
|
||||
tracing.workspace = true
|
||||
|
||||
[dev-dependencies]
|
||||
tracing-subscriber = "0.3.18"
|
||||
tracing-test = { version = "0.2.5", features = ["no-env-filter"] }
|
||||
|
||||
40
crates/mad/examples/basic/main.rs
Normal file
40
crates/mad/examples/basic/main.rs
Normal file
@@ -0,0 +1,40 @@
|
||||
use async_trait::async_trait;
|
||||
use rand::Rng;
|
||||
use tokio_util::sync::CancellationToken;
|
||||
use tracing::Level;
|
||||
|
||||
struct WaitServer {}
|
||||
#[async_trait]
|
||||
impl notmad::Component for WaitServer {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some("WaitServer".into())
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
||||
|
||||
tracing::debug!("waiting: {}ms", millis_wait);
|
||||
|
||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
tracing_subscriber::fmt()
|
||||
.with_max_level(Level::TRACE)
|
||||
.init();
|
||||
|
||||
notmad::Mad::builder()
|
||||
.add(WaitServer {})
|
||||
.add(WaitServer {})
|
||||
.add(WaitServer {})
|
||||
.add(WaitServer {})
|
||||
.run()
|
||||
.await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
42
crates/mad/examples/error_log/main.rs
Normal file
42
crates/mad/examples/error_log/main.rs
Normal file
@@ -0,0 +1,42 @@
|
||||
use async_trait::async_trait;
|
||||
use rand::Rng;
|
||||
use tokio_util::sync::CancellationToken;
|
||||
use tracing::Level;
|
||||
|
||||
struct ErrorServer {}
|
||||
#[async_trait]
|
||||
impl notmad::Component for ErrorServer {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some("ErrorServer".into())
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
||||
|
||||
tracing::debug!("waiting: {}ms", millis_wait);
|
||||
|
||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||
|
||||
Err(notmad::MadError::Inner(anyhow::anyhow!("expected error")))
|
||||
}
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
tracing_subscriber::fmt()
|
||||
.with_max_level(Level::TRACE)
|
||||
.init();
|
||||
|
||||
// Do note that only the first server which returns an error is guaranteed to be handled. This is because if servers don't respect cancellation, they will be dropped
|
||||
|
||||
notmad::Mad::builder()
|
||||
.add(ErrorServer {})
|
||||
.add(ErrorServer {})
|
||||
.add(ErrorServer {})
|
||||
.add(ErrorServer {})
|
||||
.run()
|
||||
.await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
67
crates/mad/examples/fn/main.rs
Normal file
67
crates/mad/examples/fn/main.rs
Normal file
@@ -0,0 +1,67 @@
|
||||
use async_trait::async_trait;
|
||||
use rand::Rng;
|
||||
use tokio_util::sync::CancellationToken;
|
||||
use tracing::Level;
|
||||
|
||||
struct WaitServer {}
|
||||
#[async_trait]
|
||||
impl notmad::Component for WaitServer {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some("WaitServer".into())
|
||||
}
|
||||
|
||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
||||
|
||||
tracing::debug!("waiting: {}ms", millis_wait);
|
||||
|
||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
tracing_subscriber::fmt()
|
||||
.with_max_level(Level::TRACE)
|
||||
.init();
|
||||
|
||||
let item = "some item".to_string();
|
||||
|
||||
notmad::Mad::builder()
|
||||
.add(WaitServer {})
|
||||
.add_fn(|_cancel| async move {
|
||||
let millis_wait = 50;
|
||||
|
||||
tracing::debug!("waiting: {}ms", millis_wait);
|
||||
|
||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||
|
||||
Ok(())
|
||||
})
|
||||
.add_fn(move |_cancel| {
|
||||
// I am an actual closure
|
||||
|
||||
let item = item.clone();
|
||||
|
||||
async move {
|
||||
let _item = item;
|
||||
|
||||
let millis_wait = 50;
|
||||
|
||||
tracing::debug!("waiting: {}ms", millis_wait);
|
||||
|
||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
})
|
||||
.run()
|
||||
.await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
69
crates/mad/examples/signals/main.rs
Normal file
69
crates/mad/examples/signals/main.rs
Normal file
@@ -0,0 +1,69 @@
|
||||
use async_trait::async_trait;
|
||||
use rand::Rng;
|
||||
use tokio_util::sync::CancellationToken;
|
||||
use tracing::Level;
|
||||
|
||||
struct WaitServer {}
|
||||
#[async_trait]
|
||||
impl notmad::Component for WaitServer {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some("WaitServer".into())
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
||||
|
||||
tracing::debug!("waiting: {}ms", millis_wait);
|
||||
|
||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
struct RespectCancel {}
|
||||
#[async_trait]
|
||||
impl notmad::Component for RespectCancel {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some("RespectCancel".into())
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||
cancellation.cancelled().await;
|
||||
tracing::debug!("stopping because job is cancelled");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
struct NeverStopServer {}
|
||||
#[async_trait]
|
||||
impl notmad::Component for NeverStopServer {
|
||||
fn name(&self) -> Option<String> {
|
||||
Some("NeverStopServer".into())
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
||||
tokio::time::sleep(std::time::Duration::from_millis(999999999)).await;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
tracing_subscriber::fmt()
|
||||
.with_max_level(Level::TRACE)
|
||||
.init();
|
||||
|
||||
notmad::Mad::builder()
|
||||
.add(WaitServer {})
|
||||
.add(NeverStopServer {})
|
||||
.add(RespectCancel {})
|
||||
.run()
|
||||
.await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
@@ -1,21 +1,26 @@
|
||||
use futures::stream::FuturesUnordered;
|
||||
use futures_util::StreamExt;
|
||||
use std::{fmt::Display, sync::Arc};
|
||||
use tokio::signal::unix::{SignalKind, signal};
|
||||
|
||||
use tokio_util::sync::CancellationToken;
|
||||
|
||||
use crate::waiter::Waiter;
|
||||
|
||||
mod waiter;
|
||||
|
||||
#[derive(thiserror::Error, Debug)]
|
||||
pub enum MadError {
|
||||
#[error("component failed: {0}")]
|
||||
#[error("component: {0:#?}")]
|
||||
Inner(#[source] anyhow::Error),
|
||||
|
||||
#[error("component(s) failed: {run}")]
|
||||
#[error("component: {run:#?}")]
|
||||
RunError { run: anyhow::Error },
|
||||
|
||||
#[error("component(s) failed: {close}")]
|
||||
CloseError { close: anyhow::Error },
|
||||
|
||||
#[error("component(s) failed: {0}")]
|
||||
#[error("component(s): {0}")]
|
||||
AggregateError(AggregateError),
|
||||
|
||||
#[error("setup not defined")]
|
||||
@@ -25,13 +30,33 @@ pub enum MadError {
|
||||
CloseNotDefined,
|
||||
}
|
||||
|
||||
impl From<anyhow::Error> for MadError {
|
||||
fn from(value: anyhow::Error) -> Self {
|
||||
Self::Inner(value)
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct AggregateError {
|
||||
errors: Vec<MadError>,
|
||||
}
|
||||
|
||||
impl AggregateError {
|
||||
pub fn get_errors(&self) -> &[MadError] {
|
||||
&self.errors
|
||||
}
|
||||
}
|
||||
|
||||
impl Display for AggregateError {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
if self.errors.is_empty() {
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
if self.errors.len() == 1 {
|
||||
return f.write_str(&self.errors.first().unwrap().to_string());
|
||||
}
|
||||
|
||||
f.write_str("MadError::AggregateError: (")?;
|
||||
|
||||
for error in &self.errors {
|
||||
@@ -49,6 +74,11 @@ pub struct Mad {
|
||||
should_cancel: Option<std::time::Duration>,
|
||||
}
|
||||
|
||||
struct CompletionResult {
|
||||
res: Result<(), MadError>,
|
||||
name: Option<String>,
|
||||
}
|
||||
|
||||
impl Mad {
|
||||
pub fn builder() -> Self {
|
||||
Self {
|
||||
@@ -64,6 +94,33 @@ impl Mad {
|
||||
self
|
||||
}
|
||||
|
||||
pub fn add_conditional(&mut self, condition: bool, component: impl IntoComponent) -> &mut Self {
|
||||
if condition {
|
||||
self.components.push(component.into_component());
|
||||
} else {
|
||||
self.components
|
||||
.push(Waiter::new(component.into_component()).into_component())
|
||||
}
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
pub fn add_wait(&mut self) -> &mut Self {
|
||||
self.components.push(Waiter::default().into_component());
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
pub fn add_fn<F, Fut>(&mut self, f: F) -> &mut Self
|
||||
where
|
||||
F: Fn(CancellationToken) -> Fut + Send + Sync + 'static,
|
||||
Fut: futures::Future<Output = Result<(), MadError>> + Send + 'static,
|
||||
{
|
||||
let comp = ClosureComponent { inner: Box::new(f) };
|
||||
|
||||
self.add(comp)
|
||||
}
|
||||
|
||||
pub fn cancellation(&mut self, should_cancel: Option<std::time::Duration>) -> &mut Self {
|
||||
self.should_cancel = should_cancel;
|
||||
|
||||
@@ -79,11 +136,12 @@ impl Mad {
|
||||
|
||||
let close_result = self.close_components().await;
|
||||
|
||||
tracing::info!("mad is closed down");
|
||||
match (run_result, close_result) {
|
||||
(Err(run), Err(close)) => {
|
||||
return Err(MadError::AggregateError(AggregateError {
|
||||
errors: vec![run, close],
|
||||
}))
|
||||
}));
|
||||
}
|
||||
(Ok(_), Ok(_)) => {}
|
||||
(Ok(_), Err(close)) => return Err(close),
|
||||
@@ -116,54 +174,95 @@ impl Mad {
|
||||
let mut channels = Vec::new();
|
||||
let cancellation_token = CancellationToken::new();
|
||||
let job_cancellation = CancellationToken::new();
|
||||
let job_done = CancellationToken::new();
|
||||
|
||||
for comp in &self.components {
|
||||
let comp = comp.clone();
|
||||
let cancellation_token = cancellation_token.child_token();
|
||||
let job_cancellation = job_cancellation.child_token();
|
||||
|
||||
let (error_tx, error_rx) = tokio::sync::mpsc::channel::<Result<(), MadError>>(1);
|
||||
let (error_tx, error_rx) = tokio::sync::mpsc::channel::<CompletionResult>(1);
|
||||
channels.push(error_rx);
|
||||
|
||||
tokio::spawn(async move {
|
||||
tracing::debug!(component = &comp.name(), "mad running");
|
||||
let name = comp.name().clone();
|
||||
|
||||
tracing::debug!(component = name, "mad running");
|
||||
|
||||
tokio::select! {
|
||||
_ = cancellation_token.cancelled() => {
|
||||
error_tx.send(Ok(())).await
|
||||
error_tx.send(CompletionResult { res: Ok(()) , name }).await
|
||||
}
|
||||
res = comp.run(job_cancellation) => {
|
||||
error_tx.send(res).await
|
||||
|
||||
}
|
||||
_ = tokio::signal::ctrl_c() => {
|
||||
error_tx.send(Ok(())).await
|
||||
error_tx.send(CompletionResult { res , name }).await
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
tokio::spawn({
|
||||
let cancellation_token = cancellation_token;
|
||||
let job_done = job_done.child_token();
|
||||
|
||||
let wait_cancel = self.should_cancel;
|
||||
|
||||
async move {
|
||||
let should_cancel =
|
||||
|cancel: CancellationToken,
|
||||
global_cancel: CancellationToken,
|
||||
wait: Option<std::time::Duration>| async move {
|
||||
if let Some(cancel_wait) = wait {
|
||||
cancel.cancel();
|
||||
tokio::time::sleep(cancel_wait).await;
|
||||
global_cancel.cancel();
|
||||
}
|
||||
};
|
||||
|
||||
tokio::select! {
|
||||
_ = cancellation_token.cancelled() => {
|
||||
job_cancellation.cancel();
|
||||
}
|
||||
_ = job_done.cancelled() => {
|
||||
should_cancel(job_cancellation, cancellation_token, wait_cancel).await;
|
||||
}
|
||||
_ = tokio::signal::ctrl_c() => {
|
||||
should_cancel(job_cancellation, cancellation_token,wait_cancel).await;
|
||||
}
|
||||
_ = signal_unix_terminate() => {
|
||||
should_cancel(job_cancellation, cancellation_token, wait_cancel).await;
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
let mut futures = FuturesUnordered::new();
|
||||
for channel in channels.iter_mut() {
|
||||
futures.push(channel.recv());
|
||||
}
|
||||
|
||||
let mut errors = Vec::new();
|
||||
while let Some(Some(msg)) = futures.next().await {
|
||||
tracing::trace!("received end signal from a component");
|
||||
|
||||
if let Err(e) = msg {
|
||||
tracing::debug!(error = e.to_string(), "stopping running components");
|
||||
job_cancellation.cancel();
|
||||
|
||||
if let Some(cancel_wait) = self.should_cancel {
|
||||
tokio::time::sleep(cancel_wait).await;
|
||||
|
||||
cancellation_token.cancel();
|
||||
match msg.res {
|
||||
Err(e) => {
|
||||
tracing::debug!(
|
||||
error = e.to_string(),
|
||||
component = msg.name,
|
||||
"component ran to completion with error"
|
||||
);
|
||||
errors.push(e);
|
||||
}
|
||||
Ok(_) => {
|
||||
tracing::debug!(component = msg.name, "component ran to completion");
|
||||
}
|
||||
}
|
||||
|
||||
job_done.cancel();
|
||||
}
|
||||
|
||||
tracing::debug!("ran components");
|
||||
if !errors.is_empty() {
|
||||
return Err(MadError::AggregateError(AggregateError { errors }));
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
@@ -185,6 +284,11 @@ impl Mad {
|
||||
}
|
||||
}
|
||||
|
||||
async fn signal_unix_terminate() {
|
||||
let mut sigterm = signal(SignalKind::terminate()).expect("Failed to bind SIGTERM handler");
|
||||
sigterm.recv().await;
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
pub trait Component {
|
||||
fn name(&self) -> Option<String> {
|
||||
@@ -211,3 +315,34 @@ impl<T: Component + Send + Sync + 'static> IntoComponent for T {
|
||||
Arc::new(self)
|
||||
}
|
||||
}
|
||||
|
||||
struct ClosureComponent<F, Fut>
|
||||
where
|
||||
F: Fn(CancellationToken) -> Fut + Send + Sync + 'static,
|
||||
Fut: futures::Future<Output = Result<(), MadError>> + Send + 'static,
|
||||
{
|
||||
inner: Box<F>,
|
||||
}
|
||||
|
||||
impl<F, Fut> ClosureComponent<F, Fut>
|
||||
where
|
||||
F: Fn(CancellationToken) -> Fut + Send + Sync + 'static,
|
||||
Fut: futures::Future<Output = Result<(), MadError>> + Send + 'static,
|
||||
{
|
||||
pub async fn execute(&self, cancellation_token: CancellationToken) -> Result<(), MadError> {
|
||||
(*self.inner)(cancellation_token).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
impl<F, Fut> Component for ClosureComponent<F, Fut>
|
||||
where
|
||||
F: Fn(CancellationToken) -> Fut + Send + Sync + 'static,
|
||||
Fut: futures::Future<Output = Result<(), MadError>> + Send + 'static,
|
||||
{
|
||||
async fn run(&self, cancellation_token: CancellationToken) -> Result<(), MadError> {
|
||||
self.execute(cancellation_token).await
|
||||
}
|
||||
}
|
||||
|
||||
48
crates/mad/src/waiter.rs
Normal file
48
crates/mad/src/waiter.rs
Normal file
@@ -0,0 +1,48 @@
|
||||
use std::sync::Arc;
|
||||
|
||||
use async_trait::async_trait;
|
||||
use tokio_util::sync::CancellationToken;
|
||||
|
||||
use crate::{Component, MadError};
|
||||
|
||||
pub struct DefaultWaiter {}
|
||||
#[async_trait]
|
||||
impl Component for DefaultWaiter {
|
||||
async fn run(&self, _cancellation_token: CancellationToken) -> Result<(), MadError> {
|
||||
panic!("should never be called");
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Waiter {
|
||||
comp: Arc<dyn Component + Send + Sync + 'static>,
|
||||
}
|
||||
|
||||
impl Default for Waiter {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
comp: Arc::new(DefaultWaiter {}),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Waiter {
|
||||
pub fn new(c: Arc<dyn Component + Send + Sync + 'static>) -> Self {
|
||||
Self { comp: c }
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl Component for Waiter {
|
||||
fn name(&self) -> Option<String> {
|
||||
match self.comp.name() {
|
||||
Some(name) => Some(format!("waiter/{name}")),
|
||||
None => Some("waiter".into()),
|
||||
}
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation_token: CancellationToken) -> Result<(), MadError> {
|
||||
cancellation_token.cancelled().await;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@@ -1,6 +1,9 @@
|
||||
use std::sync::Arc;
|
||||
|
||||
use async_trait::async_trait;
|
||||
use mad::{Component, Mad};
|
||||
use notmad::{Component, Mad, MadError};
|
||||
use rand::Rng;
|
||||
use tokio::sync::Mutex;
|
||||
use tokio_util::sync::CancellationToken;
|
||||
use tracing_test::traced_test;
|
||||
|
||||
@@ -12,7 +15,7 @@ impl Component for NeverEndingRun {
|
||||
Some("NeverEndingRun".into())
|
||||
}
|
||||
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), mad::MadError> {
|
||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||
let millis_wait = rand::thread_rng().gen_range(50..1000);
|
||||
|
||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||
@@ -86,3 +89,68 @@ async fn test_can_run_components() -> anyhow::Result<()> {
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
#[traced_test]
|
||||
async fn test_can_shutdown_gracefully() -> anyhow::Result<()> {
|
||||
let check = Arc::new(Mutex::new(None));
|
||||
|
||||
Mad::builder()
|
||||
.add_fn({
|
||||
let check = check.clone();
|
||||
|
||||
move |cancel| {
|
||||
let check = check.clone();
|
||||
|
||||
async move {
|
||||
let start = std::time::SystemTime::now();
|
||||
tracing::info!("waiting for cancel");
|
||||
cancel.cancelled().await;
|
||||
tracing::info!("submitting check");
|
||||
let mut check = check.lock().await;
|
||||
let elapsed = start.elapsed().expect("to be able to get elapsed");
|
||||
*check = Some(elapsed);
|
||||
tracing::info!("check submitted");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
})
|
||||
.add_fn(|_| async move {
|
||||
tracing::info!("starting sleep");
|
||||
tokio::time::sleep(std::time::Duration::from_millis(100)).await;
|
||||
tracing::info!("sleep ended");
|
||||
|
||||
Ok(())
|
||||
})
|
||||
.run()
|
||||
.await?;
|
||||
|
||||
let check = check
|
||||
.lock()
|
||||
.await
|
||||
.expect("to be able to get a duration from cancel");
|
||||
|
||||
// We default wait 100 ms for graceful shutdown, and we explicitly wait 100ms in the sleep routine
|
||||
tracing::info!("check millis: {}", check.as_millis());
|
||||
assert!(check.as_millis() < 250);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_can_easily_transform_error() -> anyhow::Result<()> {
|
||||
fn fallible() -> anyhow::Result<()> {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn inner() -> Result<(), MadError> {
|
||||
fallible()?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
inner()?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
# yaml-language-server: $schema=https://git.front.kjuulh.io/kjuulh/cuddle/raw/branch/main/schemas/base.json
|
||||
# yaml-language-server: $schema=https://git.kjuulh.io/kjuulh/cuddle/raw/branch/main/schemas/base.json
|
||||
|
||||
base: "git@git.front.kjuulh.io:kjuulh/cuddle-rust-lib-plan.git"
|
||||
base: "git@git.kjuulh.io:kjuulh/cuddle-rust-lib-plan.git"
|
||||
|
||||
vars:
|
||||
service: "mad"
|
||||
@@ -12,6 +12,6 @@ please:
|
||||
repository: "mad"
|
||||
branch: main
|
||||
settings:
|
||||
api_url: "https://git.front.kjuulh.io"
|
||||
api_url: "https://git.kjuulh.io"
|
||||
actions:
|
||||
rust:
|
||||
|
||||
3
renovate.json
Normal file
3
renovate.json
Normal file
@@ -0,0 +1,3 @@
|
||||
{
|
||||
"$schema": "https://docs.renovatebot.com/renovate-schema.json"
|
||||
}
|
||||
Reference in New Issue
Block a user