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cuddle-ple
| Author | SHA1 | Date | |
|---|---|---|---|
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7d62968447 |
@@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
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## [Unreleased]
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## [Unreleased]
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## [0.10.1] - 2025-12-19
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### Other
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- *(deps)* update rust crate tracing to v0.1.44 (#43)
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- *(deps)* update tokio-tracing monorepo (#41)
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## [0.10.0] - 2025-11-15
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## [0.10.0] - 2025-11-15
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### Added
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### Added
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425
Cargo.lock
generated
425
Cargo.lock
generated
@@ -13,9 +13,20 @@ dependencies = [
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[[package]]
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[[package]]
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name = "anyhow"
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name = "anyhow"
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version = "1.0.100"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
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checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
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[[package]]
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name = "async-trait"
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version = "0.1.89"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9035ad2d096bed7955a320ee7e2230574d28fd3c3a0f186cbea1ff3c7eed5dbb"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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[[package]]
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name = "autocfg"
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name = "autocfg"
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@@ -29,6 +40,12 @@ version = "2.6.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
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checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
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[[package]]
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name = "byteorder"
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version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
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[[package]]
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[[package]]
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name = "bytes"
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name = "bytes"
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version = "1.8.0"
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version = "1.8.0"
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@@ -41,43 +58,11 @@ version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "chacha20"
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version = "0.10.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6f8d983286843e49675a4b7a2d174efe136dc93a18d69130dd18198a6c167601"
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dependencies = [
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"cfg-if",
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"cpufeatures",
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"rand_core",
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]
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[[package]]
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name = "cpufeatures"
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dependencies = [
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"libc",
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]
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[[package]]
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||||||
name = "equivalent"
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[[package]]
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||||||
name = "foldhash"
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version = "0.1.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
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[[package]]
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[[package]]
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||||||
name = "futures"
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name = "futures"
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||||||
version = "0.3.32"
|
version = "0.3.31"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
checksum = "8b147ee9d1f6d097cef9ce628cd2ee62288d963e16fb287bd9286455b241382d"
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checksum = "65bc07b1a8bc7c85c5f2e110c476c7389b4554ba72af57d8445ea63a576b0876"
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dependencies = [
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dependencies = [
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"futures-channel",
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"futures-channel",
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"futures-core",
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"futures-core",
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@@ -90,9 +75,9 @@ dependencies = [
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[[package]]
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[[package]]
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||||||
name = "futures-channel"
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name = "futures-channel"
|
||||||
version = "0.3.32"
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version = "0.3.31"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "07bbe89c50d7a535e539b8c17bc0b49bdb77747034daa8087407d655f3f7cc1d"
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checksum = "2dff15bf788c671c1934e366d07e30c1814a8ef514e1af724a602e8a2fbe1b10"
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dependencies = [
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dependencies = [
|
||||||
"futures-core",
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"futures-core",
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"futures-sink",
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"futures-sink",
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@@ -100,15 +85,15 @@ dependencies = [
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||||||
[[package]]
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[[package]]
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||||||
name = "futures-core"
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name = "futures-core"
|
||||||
version = "0.3.32"
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version = "0.3.31"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
checksum = "7e3450815272ef58cec6d564423f6e755e25379b217b0bc688e295ba24df6b1d"
|
checksum = "05f29059c0c2090612e8d742178b0580d2dc940c837851ad723096f87af6663e"
|
||||||
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|
||||||
[[package]]
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[[package]]
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||||||
name = "futures-executor"
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name = "futures-executor"
|
||||||
version = "0.3.32"
|
version = "0.3.31"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "baf29c38818342a3b26b5b923639e7b1f4a61fc5e76102d4b1981c6dc7a7579d"
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checksum = "1e28d1d997f585e54aebc3f97d39e72338912123a67330d723fdbb564d646c9f"
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||||||
dependencies = [
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dependencies = [
|
||||||
"futures-core",
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"futures-core",
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||||||
"futures-task",
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"futures-task",
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||||||
@@ -117,15 +102,15 @@ dependencies = [
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||||||
[[package]]
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[[package]]
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||||||
name = "futures-io"
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name = "futures-io"
|
||||||
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version = "0.3.31"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "cecba35d7ad927e23624b22ad55235f2239cfa44fd10428eecbeba6d6a717718"
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checksum = "9e5c1b78ca4aae1ac06c48a526a655760685149f0d465d21f37abfe57ce075c6"
|
||||||
|
|
||||||
[[package]]
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[[package]]
|
||||||
name = "futures-macro"
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name = "futures-macro"
|
||||||
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|
version = "0.3.31"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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|
||||||
dependencies = [
|
dependencies = [
|
||||||
"proc-macro2",
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"proc-macro2",
|
||||||
"quote",
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"quote",
|
||||||
@@ -134,21 +119,21 @@ dependencies = [
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|||||||
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||||||
[[package]]
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[[package]]
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||||||
name = "futures-sink"
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name = "futures-sink"
|
||||||
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|
||||||
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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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|
||||||
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||||||
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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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|
||||||
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||||||
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||||||
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|
||||||
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|
"futures-channel",
|
||||||
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||||||
@@ -158,86 +143,34 @@ dependencies = [
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|||||||
"futures-task",
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"futures-task",
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||||||
"memchr",
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"memchr",
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||||||
"pin-project-lite",
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"pin-project-lite",
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||||||
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"pin-utils",
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||||||
"slab",
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"slab",
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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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|
||||||
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||||||
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||||||
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|
||||||
"cfg-if",
|
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|
||||||
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|
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|
||||||
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|
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|
||||||
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|
||||||
"wasip2",
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||||||
"wasip3",
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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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||||||
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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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[[package]]
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[[package]]
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@@ -283,15 +216,16 @@ checksum = "80e04d1dcff3aae0704555fe5fee3bcfaf3d1fdf8a7e521d5b9d2b42acb52cec"
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|||||||
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|
||||||
"hermit-abi",
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"hermit-abi",
|
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"futures-util",
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@@ -309,7 +243,7 @@ version = "0.50.3"
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||||||
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|
|
||||||
[[package]]
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[[package]]
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@@ -348,20 +282,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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|
||||||
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||||||
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|
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||||||
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||||||
@@ -376,27 +315,34 @@ dependencies = [
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|||||||
]
|
]
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||||||
|
|
||||||
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[[package]]
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||||||
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"rand_chacha",
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||||||
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"rand_core",
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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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||||||
"getrandom",
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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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|
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||||||
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|
||||||
[[package]]
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[[package]]
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||||||
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@@ -430,54 +376,6 @@ version = "1.2.0"
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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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|
||||||
"proc-macro2",
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|
||||||
"quote",
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"syn",
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|
||||||
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|
||||||
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|
||||||
[[package]]
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||||||
"itoa",
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|
||||||
"memchr",
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|
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"serde",
|
|
||||||
"serde_core",
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||||||
"zmij",
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||||||
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[[package]]
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[[package]]
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[[package]]
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[[package]]
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||||||
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||||||
[[package]]
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"proc-macro2",
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||||||
[[package]]
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[[package]]
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"bytes",
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"bytes",
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"libc",
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"libc",
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@@ -592,9 +490,9 @@ dependencies = [
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|
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[[package]]
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"bytes",
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@@ -678,9 +576,9 @@ dependencies = [
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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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|
||||||
"indexmap",
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|
||||||
"wasm-encoder",
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"wasmparser",
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|
||||||
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|
||||||
|
|
||||||
[[package]]
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|
||||||
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|
||||||
|
|
||||||
[[package]]
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[[package]]
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@@ -925,95 +774,51 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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|
||||||
[[package]]
|
[[package]]
|
||||||
name = "wit-bindgen"
|
name = "wit-bindgen-rt"
|
||||||
version = "0.51.0"
|
version = "0.33.0"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
|
checksum = "3268f3d866458b787f390cf61f4bbb563b922d091359f9608842999eaee3943c"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"wit-bindgen-rust-macro",
|
"bitflags",
|
||||||
]
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "wit-bindgen-core"
|
name = "zerocopy"
|
||||||
version = "0.51.0"
|
version = "0.7.35"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "ea61de684c3ea68cb082b7a88508a8b27fcc8b797d738bfc99a82facf1d752dc"
|
checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"anyhow",
|
"byteorder",
|
||||||
"heck",
|
"zerocopy-derive 0.7.35",
|
||||||
"wit-parser",
|
|
||||||
]
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "wit-bindgen-rust"
|
name = "zerocopy"
|
||||||
version = "0.51.0"
|
version = "0.8.14"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "b7c566e0f4b284dd6561c786d9cb0142da491f46a9fbed79ea69cdad5db17f21"
|
checksum = "a367f292d93d4eab890745e75a778da40909cab4d6ff8173693812f79c4a2468"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"anyhow",
|
"zerocopy-derive 0.8.14",
|
||||||
"heck",
|
|
||||||
"indexmap",
|
|
||||||
"prettyplease",
|
|
||||||
"syn",
|
|
||||||
"wasm-metadata",
|
|
||||||
"wit-bindgen-core",
|
|
||||||
"wit-component",
|
|
||||||
]
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "wit-bindgen-rust-macro"
|
name = "zerocopy-derive"
|
||||||
version = "0.51.0"
|
version = "0.7.35"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "0c0f9bfd77e6a48eccf51359e3ae77140a7f50b1e2ebfe62422d8afdaffab17a"
|
checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"anyhow",
|
|
||||||
"prettyplease",
|
|
||||||
"proc-macro2",
|
"proc-macro2",
|
||||||
"quote",
|
"quote",
|
||||||
"syn",
|
"syn",
|
||||||
"wit-bindgen-core",
|
|
||||||
"wit-bindgen-rust",
|
|
||||||
]
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "wit-component"
|
name = "zerocopy-derive"
|
||||||
version = "0.244.0"
|
version = "0.8.14"
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
|
checksum = "d3931cb58c62c13adec22e38686b559c86a30565e16ad6e8510a337cedc611e1"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"anyhow",
|
"proc-macro2",
|
||||||
"bitflags",
|
"quote",
|
||||||
"indexmap",
|
"syn",
|
||||||
"log",
|
|
||||||
"serde",
|
|
||||||
"serde_derive",
|
|
||||||
"serde_json",
|
|
||||||
"wasm-encoder",
|
|
||||||
"wasm-metadata",
|
|
||||||
"wasmparser",
|
|
||||||
"wit-parser",
|
|
||||||
]
|
]
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "wit-parser"
|
|
||||||
version = "0.244.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
|
|
||||||
dependencies = [
|
|
||||||
"anyhow",
|
|
||||||
"id-arena",
|
|
||||||
"indexmap",
|
|
||||||
"log",
|
|
||||||
"semver",
|
|
||||||
"serde",
|
|
||||||
"serde_derive",
|
|
||||||
"serde_json",
|
|
||||||
"unicode-xid",
|
|
||||||
"wasmparser",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "zmij"
|
|
||||||
version = "1.0.20"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "4de98dfa5d5b7fef4ee834d0073d560c9ca7b6c46a71d058c48db7960f8cfaf7"
|
|
||||||
|
|||||||
@@ -3,9 +3,10 @@ members = ["crates/*"]
|
|||||||
resolver = "2"
|
resolver = "2"
|
||||||
|
|
||||||
[workspace.package]
|
[workspace.package]
|
||||||
version = "0.11.0"
|
version = "0.10.1"
|
||||||
|
|
||||||
[workspace.dependencies]
|
[workspace.dependencies]
|
||||||
|
mad = { path = "crates/mad" }
|
||||||
|
|
||||||
anyhow = { version = "1.0.71" }
|
anyhow = { version = "1.0.71" }
|
||||||
tokio = { version = "1", features = ["full"] }
|
tokio = { version = "1", features = ["full"] }
|
||||||
|
|||||||
214
README.md
214
README.md
@@ -4,163 +4,165 @@
|
|||||||
[](https://docs.rs/notmad)
|
[](https://docs.rs/notmad)
|
||||||
[](https://opensource.org/licenses/MIT)
|
[](https://opensource.org/licenses/MIT)
|
||||||
|
|
||||||
A simple lifecycle manager for long-running Rust applications. Run multiple services concurrently with graceful shutdown handling.
|
## 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
|
## Installation
|
||||||
|
|
||||||
|
Add MAD to your `Cargo.toml`:
|
||||||
|
|
||||||
```toml
|
```toml
|
||||||
[dependencies]
|
[dependencies]
|
||||||
notmad = "0.10.0"
|
notmad = "0.7.5"
|
||||||
tokio = { version = "1", features = ["full"] }
|
tokio = { version = "1", features = ["full"] }
|
||||||
|
async-trait = "0.1"
|
||||||
```
|
```
|
||||||
|
|
||||||
## Quick Start
|
## Quick Start
|
||||||
|
|
||||||
|
Here's a simple example of a component that simulates a long-running server:
|
||||||
|
|
||||||
```rust
|
```rust
|
||||||
use notmad::{Component, Mad};
|
use mad::{Component, Mad};
|
||||||
|
use async_trait::async_trait;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
|
|
||||||
struct MyService;
|
// Define your component
|
||||||
|
struct WebServer {
|
||||||
|
port: u16,
|
||||||
|
}
|
||||||
|
|
||||||
impl Component for MyService {
|
#[async_trait]
|
||||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
impl Component for WebServer {
|
||||||
println!("Service running...");
|
fn name(&self) -> Option<String> {
|
||||||
cancellation.cancelled().await;
|
Some(format!("WebServer on port {}", self.port))
|
||||||
println!("Service stopped");
|
}
|
||||||
|
|
||||||
|
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(())
|
Ok(())
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
impl WebServer {
|
||||||
|
async fn serve(&self) {
|
||||||
|
// Simulate a running server
|
||||||
|
tokio::time::sleep(std::time::Duration::from_secs(3600)).await;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
#[tokio::main]
|
#[tokio::main]
|
||||||
async fn main() -> anyhow::Result<()> {
|
async fn main() -> anyhow::Result<()> {
|
||||||
|
// Build and run your application
|
||||||
Mad::builder()
|
Mad::builder()
|
||||||
.add(MyService)
|
.add(WebServer { port: 8080 })
|
||||||
|
.add(WebServer { port: 8081 }) // You can add multiple instances
|
||||||
.run()
|
.run()
|
||||||
.await?;
|
.await?;
|
||||||
|
|
||||||
Ok(())
|
Ok(())
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
## Basic Usage
|
## Advanced Usage
|
||||||
|
|
||||||
### Axum Web Server with Graceful Shutdown
|
### Custom Components
|
||||||
|
|
||||||
Here's how to run an Axum server with MAD's graceful shutdown:
|
Components can be anything that implements the `Component` trait:
|
||||||
|
|
||||||
```rust
|
```rust
|
||||||
use axum::{Router, routing::get};
|
use mad::{Component, Mad};
|
||||||
use notmad::{Component, ComponentInfo};
|
use async_trait::async_trait;
|
||||||
use tokio_util::sync::CancellationToken;
|
|
||||||
|
|
||||||
struct WebServer {
|
struct QueueProcessor {
|
||||||
port: u16,
|
queue_name: String,
|
||||||
}
|
}
|
||||||
|
|
||||||
impl Component for WebServer {
|
#[async_trait]
|
||||||
fn info(&self) -> ComponentInfo {
|
impl Component for QueueProcessor {
|
||||||
format!("WebServer:{}", self.port).into()
|
fn name(&self) -> Option<String> {
|
||||||
|
Some(format!("QueueProcessor-{}", self.queue_name))
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancel: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), mad::MadError> {
|
||||||
let app = Router::new().route("/", get(|| async { "Hello, World!" }));
|
while !cancellation.is_cancelled() {
|
||||||
|
// Process messages from queue
|
||||||
let listener = tokio::net::TcpListener::bind(format!("0.0.0.0:{}", self.port))
|
self.process_next_message().await?;
|
||||||
.await?;
|
}
|
||||||
|
|
||||||
println!("Listening on http://0.0.0.0:{}", self.port);
|
|
||||||
|
|
||||||
// Run server with graceful shutdown
|
|
||||||
axum::serve(listener, app)
|
|
||||||
.with_graceful_shutdown(async move {
|
|
||||||
cancel.cancelled().await;
|
|
||||||
println!("Shutting down server...");
|
|
||||||
})
|
|
||||||
.await?;
|
|
||||||
|
|
||||||
Ok(())
|
Ok(())
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
### Run Multiple Services
|
### Error Handling
|
||||||
|
|
||||||
|
MAD provides comprehensive error handling through the `MadError` type with automatic conversion from `anyhow::Error`:
|
||||||
|
|
||||||
```rust
|
```rust
|
||||||
Mad::builder()
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), mad::MadError> {
|
||||||
.add(WebServer { port: 8080 })
|
// Errors automatically convert from anyhow::Error to MadError
|
||||||
.add(WebServer { port: 8081 })
|
database_operation().await?;
|
||||||
.run()
|
|
||||||
.await?;
|
// Or return explicit errors
|
||||||
```
|
if some_condition {
|
||||||
|
return Err(anyhow::anyhow!("Something went wrong").into());
|
||||||
### Use Functions as Components
|
|
||||||
|
|
||||||
```rust
|
|
||||||
Mad::builder()
|
|
||||||
.add_fn(|cancel| async move {
|
|
||||||
println!("Running...");
|
|
||||||
cancel.cancelled().await;
|
|
||||||
Ok(())
|
|
||||||
})
|
|
||||||
.run()
|
|
||||||
.await?;
|
|
||||||
```
|
|
||||||
|
|
||||||
## Lifecycle Hooks
|
|
||||||
|
|
||||||
Components support optional setup and cleanup phases:
|
|
||||||
|
|
||||||
```rust
|
|
||||||
impl Component for DatabaseService {
|
|
||||||
async fn setup(&self) -> Result<(), notmad::MadError> {
|
|
||||||
println!("Connecting to database...");
|
|
||||||
Ok(())
|
|
||||||
}
|
|
||||||
|
|
||||||
async fn run(&self, cancel: CancellationToken) -> Result<(), notmad::MadError> {
|
|
||||||
cancel.cancelled().await;
|
|
||||||
Ok(())
|
|
||||||
}
|
|
||||||
|
|
||||||
async fn close(&self) -> Result<(), notmad::MadError> {
|
|
||||||
println!("Closing database connection...");
|
|
||||||
Ok(())
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
Ok(())
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
## Migration from v0.10
|
|
||||||
|
|
||||||
### Breaking Changes
|
|
||||||
|
|
||||||
1. **`name()` → `info()`**: Returns `ComponentInfo` instead of `Option<String>`
|
|
||||||
```rust
|
|
||||||
// Before
|
|
||||||
fn name(&self) -> Option<String> { Some("my-service".into()) }
|
|
||||||
|
|
||||||
// After
|
|
||||||
fn info(&self) -> ComponentInfo { "my-service".into() }
|
|
||||||
```
|
|
||||||
|
|
||||||
2. **No more `async-trait`**: Remove the dependency and `#[async_trait]` attribute
|
|
||||||
```rust
|
|
||||||
// Before
|
|
||||||
#[async_trait]
|
|
||||||
impl Component for MyService { }
|
|
||||||
|
|
||||||
// After
|
|
||||||
impl Component for MyService { }
|
|
||||||
```
|
|
||||||
|
|
||||||
## Examples
|
## Examples
|
||||||
|
|
||||||
See [examples directory](crates/mad/examples) for complete working 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
|
## License
|
||||||
|
|
||||||
MIT - see [LICENSE](LICENSE)
|
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
|
||||||
|
|
||||||
## Links
|
## Author
|
||||||
|
|
||||||
- [Documentation](https://docs.rs/notmad)
|
Created and maintained by [kjuulh](https://github.com/kjuulh)
|
||||||
- [Repository](https://github.com/kjuulh/mad)
|
|
||||||
- [Crates.io](https://crates.io/crates/notmad)
|
## Repository
|
||||||
|
|
||||||
|
Find the source code at [https://github.com/kjuulh/mad](https://github.com/kjuulh/mad)
|
||||||
|
|||||||
@@ -10,9 +10,10 @@ readme = "../../README.md"
|
|||||||
|
|
||||||
[dependencies]
|
[dependencies]
|
||||||
anyhow.workspace = true
|
anyhow.workspace = true
|
||||||
|
async-trait = "0.1.81"
|
||||||
futures = "0.3.30"
|
futures = "0.3.30"
|
||||||
futures-util = "0.3.30"
|
futures-util = "0.3.30"
|
||||||
rand = "0.10.0"
|
rand = "0.9.0"
|
||||||
thiserror = "2.0.0"
|
thiserror = "2.0.0"
|
||||||
tokio.workspace = true
|
tokio.workspace = true
|
||||||
tokio-util = "0.7.11"
|
tokio-util = "0.7.11"
|
||||||
|
|||||||
@@ -1,15 +1,16 @@
|
|||||||
use notmad::ComponentInfo;
|
use async_trait::async_trait;
|
||||||
use rand::Rng;
|
use rand::Rng;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
use tracing::Level;
|
use tracing::Level;
|
||||||
|
|
||||||
struct WaitServer {}
|
struct WaitServer {}
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for WaitServer {
|
impl notmad::Component for WaitServer {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"WaitServer".into()
|
Some("WaitServer".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
||||||
|
|
||||||
tracing::debug!("waiting: {}ms", millis_wait);
|
tracing::debug!("waiting: {}ms", millis_wait);
|
||||||
|
|||||||
@@ -7,7 +7,8 @@
|
|||||||
//! - Graceful shutdown with cancellation tokens
|
//! - Graceful shutdown with cancellation tokens
|
||||||
//! - Concurrent component execution
|
//! - Concurrent component execution
|
||||||
|
|
||||||
use notmad::{Component, ComponentInfo, Mad, MadError};
|
use async_trait::async_trait;
|
||||||
|
use notmad::{Component, Mad, MadError};
|
||||||
use std::sync::Arc;
|
use std::sync::Arc;
|
||||||
use std::sync::atomic::{AtomicUsize, Ordering};
|
use std::sync::atomic::{AtomicUsize, Ordering};
|
||||||
use tokio::time::{Duration, interval};
|
use tokio::time::{Duration, interval};
|
||||||
@@ -20,9 +21,10 @@ struct WebServer {
|
|||||||
request_count: Arc<AtomicUsize>,
|
request_count: Arc<AtomicUsize>,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for WebServer {
|
impl Component for WebServer {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
format!("web-server-{}", self.port).into()
|
Some(format!("web-server-{}", self.port))
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn setup(&self) -> Result<(), MadError> {
|
async fn setup(&self) -> Result<(), MadError> {
|
||||||
@@ -79,9 +81,10 @@ struct JobProcessor {
|
|||||||
processing_interval: Duration,
|
processing_interval: Duration,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for JobProcessor {
|
impl Component for JobProcessor {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
format!("job-processor-{}", self.queue_name).into()
|
Some(format!("job-processor-{}", self.queue_name))
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn setup(&self) -> Result<(), MadError> {
|
async fn setup(&self) -> Result<(), MadError> {
|
||||||
@@ -136,9 +139,10 @@ struct HealthChecker {
|
|||||||
check_interval: Duration,
|
check_interval: Duration,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for HealthChecker {
|
impl Component for HealthChecker {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"health-checker".into()
|
Some("health-checker".to_string())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
||||||
@@ -177,9 +181,10 @@ struct FailingComponent {
|
|||||||
fail_after: Duration,
|
fail_after: Duration,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for FailingComponent {
|
impl Component for FailingComponent {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"failing-component".into()
|
Some("failing-component".to_string())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
||||||
@@ -204,9 +209,10 @@ impl Component for FailingComponent {
|
|||||||
/// Debug component that logs system status periodically.
|
/// Debug component that logs system status periodically.
|
||||||
struct DebugComponent;
|
struct DebugComponent;
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for DebugComponent {
|
impl Component for DebugComponent {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"debug-component".into()
|
Some("debug-component".to_string())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancel: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, cancel: CancellationToken) -> Result<(), MadError> {
|
||||||
|
|||||||
@@ -1,15 +1,16 @@
|
|||||||
use notmad::ComponentInfo;
|
use async_trait::async_trait;
|
||||||
use rand::Rng;
|
use rand::Rng;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
use tracing::Level;
|
use tracing::Level;
|
||||||
|
|
||||||
struct ErrorServer {}
|
struct ErrorServer {}
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for ErrorServer {
|
impl notmad::Component for ErrorServer {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"ErrorServer".into()
|
Some("ErrorServer".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
||||||
|
|
||||||
tracing::debug!("waiting: {}ms", millis_wait);
|
tracing::debug!("waiting: {}ms", millis_wait);
|
||||||
|
|||||||
@@ -1,12 +1,13 @@
|
|||||||
use notmad::ComponentInfo;
|
use async_trait::async_trait;
|
||||||
use rand::Rng;
|
use rand::Rng;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
use tracing::Level;
|
use tracing::Level;
|
||||||
|
|
||||||
struct WaitServer {}
|
struct WaitServer {}
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for WaitServer {
|
impl notmad::Component for WaitServer {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"WaitServer".into()
|
Some("WaitServer".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
|
|||||||
@@ -3,7 +3,8 @@
|
|||||||
//! This example shows how to run a web server, queue processor, and
|
//! This example shows how to run a web server, queue processor, and
|
||||||
//! scheduled task together, with graceful shutdown on Ctrl+C.
|
//! scheduled task together, with graceful shutdown on Ctrl+C.
|
||||||
|
|
||||||
use notmad::{Component, ComponentInfo, Mad, MadError};
|
use async_trait::async_trait;
|
||||||
|
use notmad::{Component, Mad, MadError};
|
||||||
use tokio::time::{Duration, interval};
|
use tokio::time::{Duration, interval};
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
|
|
||||||
@@ -15,21 +16,22 @@ struct WebServer {
|
|||||||
port: u16,
|
port: u16,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for WebServer {
|
impl Component for WebServer {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
format!("WebServer:{}", self.port).into()
|
Some(format!("WebServer:{}", self.port))
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn setup(&self) -> Result<(), MadError> {
|
async fn setup(&self) -> Result<(), MadError> {
|
||||||
println!("[{}] Binding to port...", self.info());
|
println!("[{}] Binding to port...", self.name().unwrap());
|
||||||
// Simulate server setup time
|
// Simulate server setup time
|
||||||
tokio::time::sleep(Duration::from_millis(100)).await;
|
tokio::time::sleep(Duration::from_millis(100)).await;
|
||||||
println!("[{}] Ready to accept connections", self.info());
|
println!("[{}] Ready to accept connections", self.name().unwrap());
|
||||||
Ok(())
|
Ok(())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
||||||
println!("[{}] Server started", self.info());
|
println!("[{}] Server started", self.name().unwrap());
|
||||||
|
|
||||||
// Simulate handling requests until shutdown
|
// Simulate handling requests until shutdown
|
||||||
let mut request_id = 0;
|
let mut request_id = 0;
|
||||||
@@ -38,12 +40,12 @@ impl Component for WebServer {
|
|||||||
while !cancellation.is_cancelled() {
|
while !cancellation.is_cancelled() {
|
||||||
tokio::select! {
|
tokio::select! {
|
||||||
_ = cancellation.cancelled() => {
|
_ = cancellation.cancelled() => {
|
||||||
println!("[{}] Shutdown signal received", self.info());
|
println!("[{}] Shutdown signal received", self.name().unwrap());
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
_ = interval.tick() => {
|
_ = interval.tick() => {
|
||||||
request_id += 1;
|
request_id += 1;
|
||||||
println!("[{}] Handling request #{}", self.info(), request_id);
|
println!("[{}] Handling request #{}", self.name().unwrap(), request_id);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@@ -52,10 +54,10 @@ impl Component for WebServer {
|
|||||||
}
|
}
|
||||||
|
|
||||||
async fn close(&self) -> Result<(), MadError> {
|
async fn close(&self) -> Result<(), MadError> {
|
||||||
println!("[{}] Closing connections...", self.info());
|
println!("[{}] Closing connections...", self.name().unwrap());
|
||||||
// Simulate graceful connection drain
|
// Simulate graceful connection drain
|
||||||
tokio::time::sleep(Duration::from_millis(200)).await;
|
tokio::time::sleep(Duration::from_millis(200)).await;
|
||||||
println!("[{}] Server stopped", self.info());
|
println!("[{}] Server stopped", self.name().unwrap());
|
||||||
Ok(())
|
Ok(())
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@@ -68,13 +70,14 @@ struct QueueProcessor {
|
|||||||
queue_name: String,
|
queue_name: String,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for QueueProcessor {
|
impl Component for QueueProcessor {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
format!("QueueProcessor:{}", self.queue_name).into()
|
Some(format!("QueueProcessor:{}", self.queue_name))
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
||||||
println!("[{}] Started processing", self.info());
|
println!("[{}] Started processing", self.name().unwrap());
|
||||||
|
|
||||||
let mut message_count = 0;
|
let mut message_count = 0;
|
||||||
|
|
||||||
@@ -83,19 +86,19 @@ impl Component for QueueProcessor {
|
|||||||
// Simulate waiting for and processing a message
|
// Simulate waiting for and processing a message
|
||||||
tokio::select! {
|
tokio::select! {
|
||||||
_ = cancellation.cancelled() => {
|
_ = cancellation.cancelled() => {
|
||||||
println!("[{}] Stopping message processing", self.info());
|
println!("[{}] Stopping message processing", self.name().unwrap());
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
_ = tokio::time::sleep(Duration::from_secs(1)) => {
|
_ = tokio::time::sleep(Duration::from_secs(1)) => {
|
||||||
message_count += 1;
|
message_count += 1;
|
||||||
println!("[{}] Processed message #{}", self.info(), message_count);
|
println!("[{}] Processed message #{}", self.name().unwrap(), message_count);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
println!(
|
println!(
|
||||||
"[{}] Processed {} messages total",
|
"[{}] Processed {} messages total",
|
||||||
self.info(),
|
self.name().unwrap(),
|
||||||
message_count
|
message_count
|
||||||
);
|
);
|
||||||
Ok(())
|
Ok(())
|
||||||
@@ -113,15 +116,16 @@ struct ScheduledTask {
|
|||||||
interval_secs: u64,
|
interval_secs: u64,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for ScheduledTask {
|
impl Component for ScheduledTask {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
format!("ScheduledTask:{}", self.task_name).into()
|
Some(format!("ScheduledTask:{}", self.task_name))
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), MadError> {
|
||||||
println!(
|
println!(
|
||||||
"[{}] Scheduled to run every {} seconds",
|
"[{}] Scheduled to run every {} seconds",
|
||||||
self.info(),
|
self.name().unwrap(),
|
||||||
self.interval_secs
|
self.interval_secs
|
||||||
);
|
);
|
||||||
|
|
||||||
@@ -131,17 +135,17 @@ impl Component for ScheduledTask {
|
|||||||
while !cancellation.is_cancelled() {
|
while !cancellation.is_cancelled() {
|
||||||
tokio::select! {
|
tokio::select! {
|
||||||
_ = cancellation.cancelled() => {
|
_ = cancellation.cancelled() => {
|
||||||
println!("[{}] Scheduler stopping", self.info());
|
println!("[{}] Scheduler stopping", self.name().unwrap());
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
_ = interval.tick() => {
|
_ = interval.tick() => {
|
||||||
run_count += 1;
|
run_count += 1;
|
||||||
println!("[{}] Executing run #{}", self.info(), run_count);
|
println!("[{}] Executing run #{}", self.name().unwrap(), run_count);
|
||||||
|
|
||||||
// Simulate task execution
|
// Simulate task execution
|
||||||
tokio::time::sleep(Duration::from_millis(500)).await;
|
tokio::time::sleep(Duration::from_millis(500)).await;
|
||||||
|
|
||||||
println!("[{}] Run #{} completed", self.info(), run_count);
|
println!("[{}] Run #{} completed", self.name().unwrap(), run_count);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@@ -1,13 +1,14 @@
|
|||||||
use notmad::ComponentInfo;
|
use async_trait::async_trait;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
|
|
||||||
struct NestedErrorComponent {
|
struct NestedErrorComponent {
|
||||||
name: String,
|
name: String,
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for NestedErrorComponent {
|
impl notmad::Component for NestedErrorComponent {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
self.name.clone().into()
|
Some(self.name.clone())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
@@ -27,9 +28,10 @@ impl notmad::Component for NestedErrorComponent {
|
|||||||
|
|
||||||
struct AnotherFailingComponent;
|
struct AnotherFailingComponent;
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for AnotherFailingComponent {
|
impl notmad::Component for AnotherFailingComponent {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"another-component".into()
|
Some("another-component".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
|
|||||||
@@ -1,15 +1,16 @@
|
|||||||
use notmad::ComponentInfo;
|
use async_trait::async_trait;
|
||||||
use rand::Rng;
|
use rand::Rng;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
use tracing::Level;
|
use tracing::Level;
|
||||||
|
|
||||||
struct WaitServer {}
|
struct WaitServer {}
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for WaitServer {
|
impl notmad::Component for WaitServer {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"WaitServer".into()
|
Some("WaitServer".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
let millis_wait = rand::thread_rng().gen_range(500..3000);
|
||||||
|
|
||||||
tracing::debug!("waiting: {}ms", millis_wait);
|
tracing::debug!("waiting: {}ms", millis_wait);
|
||||||
@@ -22,9 +23,10 @@ impl notmad::Component for WaitServer {
|
|||||||
}
|
}
|
||||||
|
|
||||||
struct RespectCancel {}
|
struct RespectCancel {}
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for RespectCancel {
|
impl notmad::Component for RespectCancel {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"RespectCancel".into()
|
Some("RespectCancel".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
@@ -36,12 +38,13 @@ impl notmad::Component for RespectCancel {
|
|||||||
}
|
}
|
||||||
|
|
||||||
struct NeverStopServer {}
|
struct NeverStopServer {}
|
||||||
|
#[async_trait]
|
||||||
impl notmad::Component for NeverStopServer {
|
impl notmad::Component for NeverStopServer {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"NeverStopServer".into()
|
Some("NeverStopServer".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
// Simulates a server running for some time. Is normally supposed to be futures blocking indefinitely
|
// 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;
|
tokio::time::sleep(std::time::Duration::from_millis(999999999)).await;
|
||||||
|
|
||||||
|
|||||||
@@ -1,21 +1,42 @@
|
|||||||
//! # MAD - Lifecycle Manager for Rust Applications
|
//! # MAD - Lifecycle Manager for Rust Applications
|
||||||
//!
|
//!
|
||||||
//! A simple lifecycle manager for long-running Rust applications. Run multiple services
|
//! MAD is a robust lifecycle manager designed for long-running Rust operations. It provides
|
||||||
//! concurrently with graceful shutdown handling.
|
//! a simple, composable way to manage multiple concurrent services within your application,
|
||||||
|
//! handling graceful startup and shutdown automatically.
|
||||||
|
//!
|
||||||
|
//! ## Overview
|
||||||
|
//!
|
||||||
|
//! MAD helps you build applications composed of multiple long-running components that need
|
||||||
|
//! to be orchestrated together. It handles:
|
||||||
|
//!
|
||||||
|
//! - **Concurrent execution** of multiple components
|
||||||
|
//! - **Graceful shutdown** with cancellation tokens
|
||||||
|
//! - **Error aggregation** from multiple components
|
||||||
|
//! - **Lifecycle management** with setup, run, and close phases
|
||||||
//!
|
//!
|
||||||
//! ## Quick Start
|
//! ## Quick Start
|
||||||
//!
|
//!
|
||||||
//! ```rust,no_run
|
//! ```rust,no_run
|
||||||
//! use notmad::{Component, Mad};
|
//! use notmad::{Component, Mad};
|
||||||
|
//! use async_trait::async_trait;
|
||||||
//! use tokio_util::sync::CancellationToken;
|
//! use tokio_util::sync::CancellationToken;
|
||||||
//!
|
//!
|
||||||
//! struct MyService;
|
//! struct MyService {
|
||||||
|
//! name: String,
|
||||||
|
//! }
|
||||||
//!
|
//!
|
||||||
|
//! #[async_trait]
|
||||||
//! impl Component for MyService {
|
//! impl Component for MyService {
|
||||||
//! async fn run(&self, cancel: CancellationToken) -> Result<(), notmad::MadError> {
|
//! fn name(&self) -> Option<String> {
|
||||||
//! println!("Running...");
|
//! Some(self.name.clone())
|
||||||
//! cancel.cancelled().await;
|
//! }
|
||||||
//! println!("Stopped");
|
//!
|
||||||
|
//! async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
|
//! // Your service logic here
|
||||||
|
//! while !cancellation.is_cancelled() {
|
||||||
|
//! // Do work...
|
||||||
|
//! tokio::time::sleep(std::time::Duration::from_secs(1)).await;
|
||||||
|
//! }
|
||||||
//! Ok(())
|
//! Ok(())
|
||||||
//! }
|
//! }
|
||||||
//! }
|
//! }
|
||||||
@@ -23,25 +44,44 @@
|
|||||||
//! #[tokio::main]
|
//! #[tokio::main]
|
||||||
//! async fn main() -> anyhow::Result<()> {
|
//! async fn main() -> anyhow::Result<()> {
|
||||||
//! Mad::builder()
|
//! Mad::builder()
|
||||||
//! .add(MyService)
|
//! .add(MyService { name: "service-1".into() })
|
||||||
|
//! .add(MyService { name: "service-2".into() })
|
||||||
//! .run()
|
//! .run()
|
||||||
//! .await?;
|
//! .await?;
|
||||||
//! Ok(())
|
//! Ok(())
|
||||||
//! }
|
//! }
|
||||||
//! ```
|
//! ```
|
||||||
//!
|
//!
|
||||||
//! ## Features
|
//! ## Component Lifecycle
|
||||||
//!
|
//!
|
||||||
//! - Run multiple components concurrently
|
//! Components go through three phases:
|
||||||
//! - Graceful shutdown with cancellation tokens
|
//!
|
||||||
//! - Optional lifecycle hooks: `setup()`, `run()`, `close()`
|
//! 1. **Setup**: Optional initialization phase before components start running
|
||||||
//! - Automatic error aggregation
|
//! 2. **Run**: Main execution phase where components perform their work
|
||||||
//! - SIGTERM and Ctrl+C signal handling
|
//! 3. **Close**: Optional cleanup phase after components stop
|
||||||
|
//!
|
||||||
|
//! ## Error Handling
|
||||||
|
//!
|
||||||
|
//! MAD provides comprehensive error handling through [`MadError`], which can:
|
||||||
|
//! - Wrap errors from individual components
|
||||||
|
//! - Aggregate multiple errors when several components fail
|
||||||
|
//! - Automatically convert from `anyhow::Error`
|
||||||
|
//!
|
||||||
|
//! ## Shutdown Behavior
|
||||||
|
//!
|
||||||
|
//! MAD handles shutdown gracefully:
|
||||||
|
//! - Responds to SIGTERM and Ctrl+C signals
|
||||||
|
//! - Propagates cancellation tokens to all components
|
||||||
|
//! - Waits for components to finish cleanup
|
||||||
|
//! - Configurable cancellation timeout
|
||||||
|
|
||||||
use futures::stream::FuturesUnordered;
|
use futures::stream::FuturesUnordered;
|
||||||
use futures_util::StreamExt;
|
use futures_util::StreamExt;
|
||||||
use std::{error::Error, fmt::Display, pin::Pin, sync::Arc};
|
use std::{error::Error, fmt::Display, sync::Arc};
|
||||||
use tokio::signal::unix::{SignalKind, signal};
|
use tokio::{
|
||||||
|
signal::unix::{SignalKind, signal},
|
||||||
|
task::JoinError,
|
||||||
|
};
|
||||||
|
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
|
|
||||||
@@ -168,10 +208,12 @@ impl Display for AggregateError {
|
|||||||
///
|
///
|
||||||
/// ```rust
|
/// ```rust
|
||||||
/// use notmad::{Component, Mad};
|
/// use notmad::{Component, Mad};
|
||||||
|
/// use async_trait::async_trait;
|
||||||
/// use tokio_util::sync::CancellationToken;
|
/// use tokio_util::sync::CancellationToken;
|
||||||
///
|
///
|
||||||
/// struct MyComponent;
|
/// struct MyComponent;
|
||||||
///
|
///
|
||||||
|
/// #[async_trait]
|
||||||
/// impl Component for MyComponent {
|
/// impl Component for MyComponent {
|
||||||
/// async fn run(&self, _cancel: CancellationToken) -> Result<(), notmad::MadError> {
|
/// async fn run(&self, _cancel: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
/// Ok(())
|
/// Ok(())
|
||||||
@@ -187,7 +229,7 @@ impl Display for AggregateError {
|
|||||||
/// # }
|
/// # }
|
||||||
/// ```
|
/// ```
|
||||||
pub struct Mad {
|
pub struct Mad {
|
||||||
components: Vec<SharedComponent>,
|
components: Vec<Arc<dyn Component + Send + Sync + 'static>>,
|
||||||
|
|
||||||
should_cancel: Option<std::time::Duration>,
|
should_cancel: Option<std::time::Duration>,
|
||||||
}
|
}
|
||||||
@@ -231,8 +273,10 @@ impl Mad {
|
|||||||
///
|
///
|
||||||
/// ```rust
|
/// ```rust
|
||||||
/// use notmad::{Component, Mad};
|
/// use notmad::{Component, Mad};
|
||||||
|
/// # use async_trait::async_trait;
|
||||||
/// # use tokio_util::sync::CancellationToken;
|
/// # use tokio_util::sync::CancellationToken;
|
||||||
/// # struct MyService;
|
/// # struct MyService;
|
||||||
|
/// # #[async_trait]
|
||||||
/// # impl Component for MyService {
|
/// # impl Component for MyService {
|
||||||
/// # async fn run(&self, _: CancellationToken) -> Result<(), notmad::MadError> { Ok(()) }
|
/// # async fn run(&self, _: CancellationToken) -> Result<(), notmad::MadError> { Ok(()) }
|
||||||
/// # }
|
/// # }
|
||||||
@@ -262,8 +306,10 @@ impl Mad {
|
|||||||
/// ```rust
|
/// ```rust
|
||||||
/// use notmad::Mad;
|
/// use notmad::Mad;
|
||||||
/// # use notmad::Component;
|
/// # use notmad::Component;
|
||||||
|
/// # use async_trait::async_trait;
|
||||||
/// # use tokio_util::sync::CancellationToken;
|
/// # use tokio_util::sync::CancellationToken;
|
||||||
/// # struct DebugService;
|
/// # struct DebugService;
|
||||||
|
/// # #[async_trait]
|
||||||
/// # impl Component for DebugService {
|
/// # impl Component for DebugService {
|
||||||
/// # async fn run(&self, _: CancellationToken) -> Result<(), notmad::MadError> { Ok(()) }
|
/// # async fn run(&self, _: CancellationToken) -> Result<(), notmad::MadError> { Ok(()) }
|
||||||
/// # }
|
/// # }
|
||||||
@@ -351,7 +397,7 @@ impl Mad {
|
|||||||
/// # Arguments
|
/// # Arguments
|
||||||
///
|
///
|
||||||
/// * `should_cancel` - Duration to wait after cancellation before forcing shutdown.
|
/// * `should_cancel` - Duration to wait after cancellation before forcing shutdown.
|
||||||
/// Pass `None` to wait indefinitely.
|
/// Pass `None` to wait indefinitely.
|
||||||
///
|
///
|
||||||
/// # Example
|
/// # Example
|
||||||
///
|
///
|
||||||
@@ -426,7 +472,7 @@ impl Mad {
|
|||||||
tracing::debug!("setting up components");
|
tracing::debug!("setting up components");
|
||||||
|
|
||||||
for comp in &self.components {
|
for comp in &self.components {
|
||||||
tracing::trace!(component = %comp.info(), "mad setting up");
|
tracing::trace!(component = &comp.name(), "mad setting up");
|
||||||
|
|
||||||
match comp.setup().await {
|
match comp.setup().await {
|
||||||
Ok(_) | Err(MadError::SetupNotDefined) => {}
|
Ok(_) | Err(MadError::SetupNotDefined) => {}
|
||||||
@@ -456,15 +502,15 @@ impl Mad {
|
|||||||
channels.push(error_rx);
|
channels.push(error_rx);
|
||||||
|
|
||||||
tokio::spawn(async move {
|
tokio::spawn(async move {
|
||||||
let info = comp.info().clone();
|
let name = comp.name().clone();
|
||||||
|
|
||||||
tracing::debug!(component = %info, "mad running");
|
tracing::debug!(component = name, "mad running");
|
||||||
|
|
||||||
let handle = tokio::spawn(async move { comp.run(job_cancellation).await });
|
let handle = tokio::spawn(async move { comp.run(job_cancellation).await });
|
||||||
|
|
||||||
tokio::select! {
|
tokio::select! {
|
||||||
_ = cancellation_token.cancelled() => {
|
_ = cancellation_token.cancelled() => {
|
||||||
error_tx.send(CompletionResult { res: Ok(()) , name: info.name }).await
|
error_tx.send(CompletionResult { res: Ok(()) , name }).await
|
||||||
}
|
}
|
||||||
res = handle => {
|
res = handle => {
|
||||||
let res = match res {
|
let res = match res {
|
||||||
@@ -486,7 +532,7 @@ impl Mad {
|
|||||||
};
|
};
|
||||||
|
|
||||||
|
|
||||||
error_tx.send(CompletionResult { res , name: info.name }).await
|
error_tx.send(CompletionResult { res , name }).await
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
});
|
});
|
||||||
@@ -563,7 +609,7 @@ impl Mad {
|
|||||||
tracing::debug!("closing components");
|
tracing::debug!("closing components");
|
||||||
|
|
||||||
for comp in &self.components {
|
for comp in &self.components {
|
||||||
tracing::trace!(component = %comp.info(), "mad closing");
|
tracing::trace!(component = &comp.name(), "mad closing");
|
||||||
match comp.close().await {
|
match comp.close().await {
|
||||||
Ok(_) | Err(MadError::CloseNotDefined) => {}
|
Ok(_) | Err(MadError::CloseNotDefined) => {}
|
||||||
Err(e) => return Err(e),
|
Err(e) => return Err(e),
|
||||||
@@ -581,46 +627,6 @@ async fn signal_unix_terminate() {
|
|||||||
sigterm.recv().await;
|
sigterm.recv().await;
|
||||||
}
|
}
|
||||||
|
|
||||||
#[derive(Default, Clone)]
|
|
||||||
pub struct ComponentInfo {
|
|
||||||
name: Option<String>,
|
|
||||||
}
|
|
||||||
|
|
||||||
impl Display for ComponentInfo {
|
|
||||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
||||||
f.write_str(
|
|
||||||
self.name
|
|
||||||
.as_ref()
|
|
||||||
.map(|n| n.as_str())
|
|
||||||
.unwrap_or_else(|| "unknown"),
|
|
||||||
)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl ComponentInfo {
|
|
||||||
pub fn new() -> Self {
|
|
||||||
Self::default()
|
|
||||||
}
|
|
||||||
|
|
||||||
pub fn with_name(&mut self, name: impl Into<String>) -> &mut Self {
|
|
||||||
self.name = Some(name.into());
|
|
||||||
self
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
impl From<String> for ComponentInfo {
|
|
||||||
fn from(value: String) -> Self {
|
|
||||||
Self { name: Some(value) }
|
|
||||||
}
|
|
||||||
}
|
|
||||||
impl From<&str> for ComponentInfo {
|
|
||||||
fn from(value: &str) -> Self {
|
|
||||||
Self {
|
|
||||||
name: Some(value.into()),
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/// Trait for implementing MAD components.
|
/// Trait for implementing MAD components.
|
||||||
///
|
///
|
||||||
/// Components represent individual services or tasks that run as part
|
/// Components represent individual services or tasks that run as part
|
||||||
@@ -630,16 +636,18 @@ impl From<&str> for ComponentInfo {
|
|||||||
/// # Example
|
/// # Example
|
||||||
///
|
///
|
||||||
/// ```rust
|
/// ```rust
|
||||||
/// use notmad::{Component, ComponentInfo, MadError};
|
/// use notmad::{Component, MadError};
|
||||||
|
/// use async_trait::async_trait;
|
||||||
/// use tokio_util::sync::CancellationToken;
|
/// use tokio_util::sync::CancellationToken;
|
||||||
///
|
///
|
||||||
/// struct DatabaseConnection {
|
/// struct DatabaseConnection {
|
||||||
/// url: String,
|
/// url: String,
|
||||||
/// }
|
/// }
|
||||||
///
|
///
|
||||||
|
/// #[async_trait]
|
||||||
/// impl Component for DatabaseConnection {
|
/// impl Component for DatabaseConnection {
|
||||||
/// fn info(&self) -> ComponentInfo {
|
/// fn name(&self) -> Option<String> {
|
||||||
/// "database".into()
|
/// Some("database".to_string())
|
||||||
/// }
|
/// }
|
||||||
///
|
///
|
||||||
/// async fn setup(&self) -> Result<(), MadError> {
|
/// async fn setup(&self) -> Result<(), MadError> {
|
||||||
@@ -661,7 +669,8 @@ impl From<&str> for ComponentInfo {
|
|||||||
/// }
|
/// }
|
||||||
/// }
|
/// }
|
||||||
/// ```
|
/// ```
|
||||||
pub trait Component: Send + Sync + 'static {
|
#[async_trait::async_trait]
|
||||||
|
pub trait Component {
|
||||||
/// Returns an optional name for the component.
|
/// Returns an optional name for the component.
|
||||||
///
|
///
|
||||||
/// This name is used in logging and error messages to identify
|
/// This name is used in logging and error messages to identify
|
||||||
@@ -670,8 +679,8 @@ pub trait Component: Send + Sync + 'static {
|
|||||||
/// # Default
|
/// # Default
|
||||||
///
|
///
|
||||||
/// Returns `None` if not overridden.
|
/// Returns `None` if not overridden.
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
ComponentInfo::default()
|
None
|
||||||
}
|
}
|
||||||
|
|
||||||
/// Optional setup phase called before the component starts running.
|
/// Optional setup phase called before the component starts running.
|
||||||
@@ -689,8 +698,8 @@ pub trait Component: Send + Sync + 'static {
|
|||||||
///
|
///
|
||||||
/// If setup fails with an error other than `SetupNotDefined`,
|
/// If setup fails with an error other than `SetupNotDefined`,
|
||||||
/// the entire application will stop before any components start running.
|
/// the entire application will stop before any components start running.
|
||||||
fn setup(&self) -> impl Future<Output = Result<(), MadError>> + Send + '_ {
|
async fn setup(&self) -> Result<(), MadError> {
|
||||||
async { Err(MadError::SetupNotDefined) }
|
Err(MadError::SetupNotDefined)
|
||||||
}
|
}
|
||||||
|
|
||||||
/// Main execution phase of the component.
|
/// Main execution phase of the component.
|
||||||
@@ -712,10 +721,7 @@ pub trait Component: Send + Sync + 'static {
|
|||||||
/// # Errors
|
/// # Errors
|
||||||
///
|
///
|
||||||
/// Any error returned will trigger shutdown of all other components.
|
/// Any error returned will trigger shutdown of all other components.
|
||||||
fn run(
|
async fn run(&self, cancellation_token: CancellationToken) -> Result<(), MadError>;
|
||||||
&self,
|
|
||||||
cancellation_token: CancellationToken,
|
|
||||||
) -> impl Future<Output = Result<(), MadError>> + Send + '_;
|
|
||||||
|
|
||||||
/// Optional cleanup phase called after the component stops.
|
/// Optional cleanup phase called after the component stops.
|
||||||
///
|
///
|
||||||
@@ -732,73 +738,8 @@ pub trait Component: Send + Sync + 'static {
|
|||||||
///
|
///
|
||||||
/// Errors during close are logged but don't prevent other components
|
/// Errors during close are logged but don't prevent other components
|
||||||
/// from closing.
|
/// from closing.
|
||||||
fn close(&self) -> impl Future<Output = Result<(), MadError>> + Send + '_ {
|
|
||||||
async { Err(MadError::CloseNotDefined) }
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
trait AsyncComponent: Send + Sync + 'static {
|
|
||||||
fn info_async(&self) -> ComponentInfo;
|
|
||||||
|
|
||||||
fn setup_async(&self) -> Pin<Box<dyn Future<Output = Result<(), MadError>> + Send + '_>>;
|
|
||||||
|
|
||||||
fn run_async(
|
|
||||||
&self,
|
|
||||||
cancellation_token: CancellationToken,
|
|
||||||
) -> Pin<Box<dyn Future<Output = Result<(), MadError>> + Send + '_>>;
|
|
||||||
|
|
||||||
fn close_async(&self) -> Pin<Box<dyn Future<Output = Result<(), MadError>> + Send + '_>>;
|
|
||||||
}
|
|
||||||
|
|
||||||
impl<E: Component> AsyncComponent for E {
|
|
||||||
#[inline(always)]
|
|
||||||
fn info_async(&self) -> ComponentInfo {
|
|
||||||
self.info()
|
|
||||||
}
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
fn setup_async(&self) -> Pin<Box<dyn Future<Output = Result<(), MadError>> + Send + '_>> {
|
|
||||||
Box::pin(self.setup())
|
|
||||||
}
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
fn run_async(
|
|
||||||
&self,
|
|
||||||
cancellation_token: CancellationToken,
|
|
||||||
) -> Pin<Box<dyn Future<Output = Result<(), MadError>> + Send + '_>> {
|
|
||||||
Box::pin(self.run(cancellation_token))
|
|
||||||
}
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
fn close_async(&self) -> Pin<Box<dyn Future<Output = Result<(), MadError>> + Send + '_>> {
|
|
||||||
Box::pin(self.close())
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#[derive(Clone)]
|
|
||||||
pub struct SharedComponent {
|
|
||||||
component: Arc<dyn AsyncComponent + Send + Sync + 'static>,
|
|
||||||
}
|
|
||||||
|
|
||||||
impl SharedComponent {
|
|
||||||
#[inline(always)]
|
|
||||||
pub fn info(&self) -> ComponentInfo {
|
|
||||||
self.component.info_async()
|
|
||||||
}
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
async fn setup(&self) -> Result<(), MadError> {
|
|
||||||
self.component.setup_async().await
|
|
||||||
}
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
async fn run(&self, cancellation_token: CancellationToken) -> Result<(), MadError> {
|
|
||||||
self.component.run_async(cancellation_token).await
|
|
||||||
}
|
|
||||||
|
|
||||||
#[inline(always)]
|
|
||||||
async fn close(&self) -> Result<(), MadError> {
|
async fn close(&self) -> Result<(), MadError> {
|
||||||
self.component.close_async().await
|
Err(MadError::CloseNotDefined)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@@ -812,10 +753,12 @@ impl SharedComponent {
|
|||||||
///
|
///
|
||||||
/// ```rust
|
/// ```rust
|
||||||
/// use notmad::{Component, IntoComponent, Mad};
|
/// use notmad::{Component, IntoComponent, Mad};
|
||||||
|
/// # use async_trait::async_trait;
|
||||||
/// # use tokio_util::sync::CancellationToken;
|
/// # use tokio_util::sync::CancellationToken;
|
||||||
///
|
///
|
||||||
/// struct MyService;
|
/// struct MyService;
|
||||||
///
|
///
|
||||||
|
/// # #[async_trait]
|
||||||
/// # impl Component for MyService {
|
/// # impl Component for MyService {
|
||||||
/// # async fn run(&self, _: CancellationToken) -> Result<(), notmad::MadError> { Ok(()) }
|
/// # async fn run(&self, _: CancellationToken) -> Result<(), notmad::MadError> { Ok(()) }
|
||||||
/// # }
|
/// # }
|
||||||
@@ -826,14 +769,12 @@ impl SharedComponent {
|
|||||||
/// ```
|
/// ```
|
||||||
pub trait IntoComponent {
|
pub trait IntoComponent {
|
||||||
/// Converts self into an Arc-wrapped component.
|
/// Converts self into an Arc-wrapped component.
|
||||||
fn into_component(self) -> SharedComponent;
|
fn into_component(self) -> Arc<dyn Component + Send + Sync + 'static>;
|
||||||
}
|
}
|
||||||
|
|
||||||
impl<T: Component> IntoComponent for T {
|
impl<T: Component + Send + Sync + 'static> IntoComponent for T {
|
||||||
fn into_component(self) -> SharedComponent {
|
fn into_component(self) -> Arc<dyn Component + Send + Sync + 'static> {
|
||||||
SharedComponent {
|
Arc::new(self)
|
||||||
component: Arc::new(self),
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@@ -857,6 +798,7 @@ where
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait::async_trait]
|
||||||
impl<F, Fut> Component for ClosureComponent<F, Fut>
|
impl<F, Fut> Component for ClosureComponent<F, Fut>
|
||||||
where
|
where
|
||||||
F: Fn(CancellationToken) -> Fut + Send + Sync + 'static,
|
F: Fn(CancellationToken) -> Fut + Send + Sync + 'static,
|
||||||
@@ -870,6 +812,7 @@ where
|
|||||||
#[cfg(test)]
|
#[cfg(test)]
|
||||||
mod tests {
|
mod tests {
|
||||||
use super::*;
|
use super::*;
|
||||||
|
use anyhow::Context;
|
||||||
|
|
||||||
#[test]
|
#[test]
|
||||||
fn test_error_chaining_display() {
|
fn test_error_chaining_display() {
|
||||||
@@ -966,9 +909,10 @@ mod tests {
|
|||||||
async fn test_component_error_propagation() {
|
async fn test_component_error_propagation() {
|
||||||
struct FailingComponent;
|
struct FailingComponent;
|
||||||
|
|
||||||
|
#[async_trait::async_trait]
|
||||||
impl Component for FailingComponent {
|
impl Component for FailingComponent {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"test-component".into()
|
Some("test-component".to_string())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancel: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, _cancel: CancellationToken) -> Result<(), MadError> {
|
||||||
|
|||||||
@@ -4,15 +4,19 @@
|
|||||||
//! without performing any work. Useful for keeping the application alive
|
//! without performing any work. Useful for keeping the application alive
|
||||||
//! or as placeholders in conditional component loading.
|
//! or as placeholders in conditional component loading.
|
||||||
|
|
||||||
|
use std::sync::Arc;
|
||||||
|
|
||||||
|
use async_trait::async_trait;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
|
|
||||||
use crate::{Component, ComponentInfo, IntoComponent, MadError, SharedComponent};
|
use crate::{Component, MadError};
|
||||||
|
|
||||||
/// A default waiter component that panics if run.
|
/// A default waiter component that panics if run.
|
||||||
///
|
///
|
||||||
/// This is used internally as a placeholder that should never
|
/// This is used internally as a placeholder that should never
|
||||||
/// actually be executed.
|
/// actually be executed.
|
||||||
pub struct DefaultWaiter;
|
pub struct DefaultWaiter {}
|
||||||
|
#[async_trait]
|
||||||
impl Component for DefaultWaiter {
|
impl Component for DefaultWaiter {
|
||||||
async fn run(&self, _cancellation_token: CancellationToken) -> Result<(), MadError> {
|
async fn run(&self, _cancellation_token: CancellationToken) -> Result<(), MadError> {
|
||||||
panic!("should never be called");
|
panic!("should never be called");
|
||||||
@@ -34,13 +38,13 @@ impl Component for DefaultWaiter {
|
|||||||
/// let waiter = Waiter::new(service.into_component());
|
/// let waiter = Waiter::new(service.into_component());
|
||||||
/// ```
|
/// ```
|
||||||
pub struct Waiter {
|
pub struct Waiter {
|
||||||
comp: SharedComponent,
|
comp: Arc<dyn Component + Send + Sync + 'static>,
|
||||||
}
|
}
|
||||||
|
|
||||||
impl Default for Waiter {
|
impl Default for Waiter {
|
||||||
fn default() -> Self {
|
fn default() -> Self {
|
||||||
Self {
|
Self {
|
||||||
comp: DefaultWaiter {}.into_component(),
|
comp: Arc::new(DefaultWaiter {}),
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@@ -50,20 +54,21 @@ impl Waiter {
|
|||||||
///
|
///
|
||||||
/// The wrapped component's name will be used (prefixed with "waiter/"),
|
/// The wrapped component's name will be used (prefixed with "waiter/"),
|
||||||
/// but its run method will not be called.
|
/// but its run method will not be called.
|
||||||
pub fn new(c: SharedComponent) -> Self {
|
pub fn new(c: Arc<dyn Component + Send + Sync + 'static>) -> Self {
|
||||||
Self { comp: c }
|
Self { comp: c }
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for Waiter {
|
impl Component for Waiter {
|
||||||
/// Returns the name of the waiter, prefixed with "waiter/".
|
/// Returns the name of the waiter, prefixed with "waiter/".
|
||||||
///
|
///
|
||||||
/// If the wrapped component has a name, it will be "waiter/{name}".
|
/// If the wrapped component has a name, it will be "waiter/{name}".
|
||||||
/// Otherwise, returns "waiter".
|
/// Otherwise, returns "waiter".
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
match &self.comp.info().name {
|
match self.comp.name() {
|
||||||
Some(name) => format!("waiter/{name}").into(),
|
Some(name) => Some(format!("waiter/{name}")),
|
||||||
None => "waiter".into(),
|
None => Some("waiter".into()),
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@@ -1,6 +1,7 @@
|
|||||||
use std::sync::Arc;
|
use std::sync::Arc;
|
||||||
|
|
||||||
use notmad::{Component, ComponentInfo, Mad, MadError};
|
use async_trait::async_trait;
|
||||||
|
use notmad::{Component, Mad, MadError};
|
||||||
use rand::Rng;
|
use rand::Rng;
|
||||||
use tokio::sync::Mutex;
|
use tokio::sync::Mutex;
|
||||||
use tokio_util::sync::CancellationToken;
|
use tokio_util::sync::CancellationToken;
|
||||||
@@ -8,12 +9,13 @@ use tracing_test::traced_test;
|
|||||||
|
|
||||||
struct NeverEndingRun {}
|
struct NeverEndingRun {}
|
||||||
|
|
||||||
|
#[async_trait]
|
||||||
impl Component for NeverEndingRun {
|
impl Component for NeverEndingRun {
|
||||||
fn info(&self) -> ComponentInfo {
|
fn name(&self) -> Option<String> {
|
||||||
"NeverEndingRun".into()
|
Some("NeverEndingRun".into())
|
||||||
}
|
}
|
||||||
|
|
||||||
async fn run(&self, _cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
async fn run(&self, cancellation: CancellationToken) -> Result<(), notmad::MadError> {
|
||||||
let millis_wait = rand::thread_rng().gen_range(50..1000);
|
let millis_wait = rand::thread_rng().gen_range(50..1000);
|
||||||
|
|
||||||
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
tokio::time::sleep(std::time::Duration::from_millis(millis_wait)).await;
|
||||||
|
|||||||
Reference in New Issue
Block a user