✨ worker
This commit is contained in:
parent
5cb4facc48
commit
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GPG key ID:
901B2ADDF27C2263
11 changed files with 841 additions and 48 deletions
226
Cargo.lock
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226
Cargo.lock
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@ -76,6 +76,12 @@ dependencies = [
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"windows-sys",
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"windows-sys",
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]
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]
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[[package]]
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name = "autocfg"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
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[[package]]
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[[package]]
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version = "0.3.74"
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@ -91,6 +97,12 @@ dependencies = [
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"windows-targets",
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"windows-targets",
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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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version = "1.0.0"
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@ -107,11 +119,96 @@ checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
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dependencies = [
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"dashmap",
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"env_logger",
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"env_logger",
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"log",
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"log",
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"once_cell",
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"serde_json",
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"tokio",
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"tokio",
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]
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]
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[[package]]
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name = "comrade-macro"
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dependencies = [
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"proc-macro2",
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"quote",
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"serde_json",
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"syn",
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]
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[[package]]
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"crossbeam-epoch",
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"crossbeam-queue",
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"crossbeam-utils",
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]
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[[package]]
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"crossbeam-utils",
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[[package]]
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dependencies = [
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"crossbeam-epoch",
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-epoch"
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dependencies = [
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-queue"
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dependencies = [
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-utils"
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version = "0.8.21"
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[[package]]
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name = "dashmap"
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version = "6.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5041cc499144891f3790297212f32a74fb938e5136a14943f338ef9e0ae276cf"
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dependencies = [
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"cfg-if",
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"crossbeam-utils",
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"hashbrown",
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"lock_api",
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"once_cell",
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"parking_lot_core",
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]
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[[package]]
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name = "env_filter"
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name = "env_filter"
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version = "0.1.3"
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version = "0.1.3"
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@ -141,6 +238,12 @@ version = "0.31.1"
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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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[[package]]
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name = "hashbrown"
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@ -153,12 +256,28 @@ version = "1.70.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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[[package]]
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[[package]]
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name = "lock_api"
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version = "0.4.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
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dependencies = [
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"autocfg",
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"scopeguard",
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]
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[[package]]
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name = "log"
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name = "log"
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version = "0.4.26"
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version = "0.4.26"
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@ -195,12 +314,52 @@ version = "1.20.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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"cfg-if",
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"libc",
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"redox_syscall",
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"smallvec",
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"windows-targets",
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]
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[[package]]
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[[package]]
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dependencies = [
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"proc-macro2",
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]
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name = "redox_syscall"
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"bitflags",
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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"syn",
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"ryu",
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edition = "2024"
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edition = "2024"
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[dependencies]
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comrade-macro = { path = "./comrade-macro" }
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||||||
|
serde_json = "1.0.140"
|
||||||
|
|
|
||||||
103
README.md
Normal file
103
README.md
Normal file
|
|
@ -0,0 +1,103 @@
|
||||||
|
# ☭ comrade
|
||||||
|
`comrade` is a Rust crate designed for managing compute work. It allows seamless management of shared work and functions even across machines.
|
||||||
|
|
||||||
|
## Features
|
||||||
|
|
||||||
|
- **Parallel Execution**: Dispatch tasks to run concurrently and gather their results.
|
||||||
|
- **Rally Execution**: Run multiple tasks in parallel and return the result of the fastest one.
|
||||||
|
- **Service Management**: Manage background services with different operating modes (`Decay`, `Daemon`).
|
||||||
|
- **Worker Unions**: Delegate tasks using `#[worker]` annotations locally or as distributed task queues across multiple machines.
|
||||||
|
- **Background Tasks**: Seamlessly run background tasks without blocking the main logic of your program.
|
||||||
|
|
||||||
|
## Core Concepts
|
||||||
|
|
||||||
|
### Parallel Execution
|
||||||
|
|
||||||
|
`comrade` provides a simple interface for running tasks in parallel, perfect for independent tasks that can be processed concurrently.
|
||||||
|
|
||||||
|
```rust
|
||||||
|
let results: Vec<i32> = parallel(items, |item: &i32| {
|
||||||
|
// ...
|
||||||
|
});
|
||||||
|
```
|
||||||
|
|
||||||
|
### Rally Execution
|
||||||
|
|
||||||
|
The `rally` function allows you to run multiple tasks in parallel and return the result of the **first task to finish**. This is useful when you want to prioritize the first available result from several tasks (example: download from multiple HTTP mirrors).
|
||||||
|
|
||||||
|
```rust
|
||||||
|
let res: (i32, i32) = rally(items, |item: &i32| {
|
||||||
|
// ...
|
||||||
|
});
|
||||||
|
```
|
||||||
|
|
||||||
|
### Background Tasks
|
||||||
|
|
||||||
|
Easily run tasks in the background without blocking the main thread. This is useful for code that needs be run without waiting for a result.
|
||||||
|
|
||||||
|
```rust
|
||||||
|
fn handle() {
|
||||||
|
background(|| {
|
||||||
|
// Background task logic
|
||||||
|
println!("This is a background task!");
|
||||||
|
});
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Service Management
|
||||||
|
|
||||||
|
`comrade` provides a way to manage persistent services with different modes. The `Decay` mode allows services to die, while the `Daemon` mode revives them and keeps them running indefinitely.
|
||||||
|
|
||||||
|
```rust
|
||||||
|
use comrade::service::ServiceManager;
|
||||||
|
|
||||||
|
fn run_services() {
|
||||||
|
let mut manager = ServiceManager::new().mode(comrade::service::ServiceMode::Decay);
|
||||||
|
|
||||||
|
// Register and start services
|
||||||
|
manager = manager.register("my_service", |_| {
|
||||||
|
// Service logic here
|
||||||
|
});
|
||||||
|
|
||||||
|
let thread_handle = manager.spawn();
|
||||||
|
thread_handle.join().unwrap();
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Worker Unions
|
||||||
|
|
||||||
|
You can annotate a function with `#[worker]` which gives them superpowers. These functions can be queued and dispatched by the system, and their results are returned when completed.
|
||||||
|
|
||||||
|
```rust
|
||||||
|
use comrade::{worker};
|
||||||
|
|
||||||
|
#[worker]
|
||||||
|
pub fn myfn(i: i32) -> i32 {
|
||||||
|
i * 2
|
||||||
|
}
|
||||||
|
|
||||||
|
#[worker]
|
||||||
|
pub fn multiply(a: i32, b: i32) -> i32 {
|
||||||
|
a * b
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
After initialization these functions can then be called anywhere and will be processed eventually by whatever worker picks it up.
|
||||||
|
|
||||||
|
```rust
|
||||||
|
fn main() {
|
||||||
|
let mut manager = ServiceManager::new().mode(comrade::service::ServiceMode::Decay);
|
||||||
|
|
||||||
|
// Init worker thread on `ServiceManager`
|
||||||
|
manager = multiply_init(manager);
|
||||||
|
let manager = manager.spawn();
|
||||||
|
|
||||||
|
let res = multiply(2, 2);
|
||||||
|
|
||||||
|
// Shutdown worker thread
|
||||||
|
multiply_shutdown();
|
||||||
|
manager.join().unwrap();
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
**Future Plans**: The current system works in-memory with a single worker thread processing tasks. In the future, we plan to extend this to support distributed task queues across multiple machines, enabling shared workloads and infinite scalability.
|
||||||
98
comrade-macro/Cargo.lock
generated
Normal file
98
comrade-macro/Cargo.lock
generated
Normal file
|
|
@ -0,0 +1,98 @@
|
||||||
|
# This file is automatically @generated by Cargo.
|
||||||
|
# It is not intended for manual editing.
|
||||||
|
version = 4
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "comrade-macro"
|
||||||
|
version = "0.1.0"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"serde_json",
|
||||||
|
"syn",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "itoa"
|
||||||
|
version = "1.0.15"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "memchr"
|
||||||
|
version = "2.7.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "proc-macro2"
|
||||||
|
version = "1.0.94"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
|
||||||
|
dependencies = [
|
||||||
|
"unicode-ident",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "quote"
|
||||||
|
version = "1.0.39"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c1f1914ce909e1658d9907913b4b91947430c7d9be598b15a1912935b8c04801"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "ryu"
|
||||||
|
version = "1.0.20"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "serde"
|
||||||
|
version = "1.0.218"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e8dfc9d19bdbf6d17e22319da49161d5d0108e4188e8b680aef6299eed22df60"
|
||||||
|
dependencies = [
|
||||||
|
"serde_derive",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "serde_derive"
|
||||||
|
version = "1.0.218"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "f09503e191f4e797cb8aac08e9a4a4695c5edf6a2e70e376d961ddd5c969f82b"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "serde_json"
|
||||||
|
version = "1.0.140"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
|
||||||
|
dependencies = [
|
||||||
|
"itoa",
|
||||||
|
"memchr",
|
||||||
|
"ryu",
|
||||||
|
"serde",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "syn"
|
||||||
|
version = "2.0.99"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e02e925281e18ffd9d640e234264753c43edc62d64b2d4cf898f1bc5e75f3fc2"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"unicode-ident",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "unicode-ident"
|
||||||
|
version = "1.0.18"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
|
||||||
13
comrade-macro/Cargo.toml
Normal file
13
comrade-macro/Cargo.toml
Normal file
|
|
@ -0,0 +1,13 @@
|
||||||
|
[package]
|
||||||
|
name = "comrade-macro"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2024"
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
proc-macro2 = "1.0.94"
|
||||||
|
quote = "1.0.39"
|
||||||
|
serde_json = "1.0.140"
|
||||||
|
syn = { version = "2.0.99", features = ["full"] }
|
||||||
|
|
||||||
|
[lib]
|
||||||
|
proc-macro = true
|
||||||
200
comrade-macro/src/lib.rs
Normal file
200
comrade-macro/src/lib.rs
Normal file
|
|
@ -0,0 +1,200 @@
|
||||||
|
use proc_macro::TokenStream;
|
||||||
|
use quote::{ToTokens, format_ident, quote};
|
||||||
|
use syn::{FnArg, Ident, ItemFn, Pat, ReturnType, Type, parse_macro_input};
|
||||||
|
|
||||||
|
/// This macro turns this function into a worker.
|
||||||
|
///
|
||||||
|
/// This will upgrade the function and generate a few ones (`fn` is a placeholder for the functions name):
|
||||||
|
/// - `fn()` - This function will be exactly the same as the original but it will be computed by a worker.
|
||||||
|
/// - `fn_init(&ServiceManager) -> ServiceManager` - This function registers a worker thread on a `ServiceManager`.
|
||||||
|
/// - `fn_shutdown()` - This function issues a shutdown request.
|
||||||
|
/// - `fn_init_scoped(&ServiceManager) -> (ServiceManager, fn_Scoped)` - This function registers a worker thread on a `ServiceManager` and returns a scoped struct. You can call the underlying function with `.call()` on the struct and it will automatically shutdown any workers if it gets out of scope.
|
||||||
|
///
|
||||||
|
/// # Examples
|
||||||
|
/// ```ignore
|
||||||
|
/// use comrade::worker;
|
||||||
|
///
|
||||||
|
/// // Declare worker
|
||||||
|
/// #[worker]
|
||||||
|
/// pub fn multiply(a: i32, b: i32) -> i32 {
|
||||||
|
/// a * b
|
||||||
|
/// }
|
||||||
|
///
|
||||||
|
/// fn main() {
|
||||||
|
/// let s = ServiceManager::new().mode(comrade::service::ServiceMode::Decay);
|
||||||
|
///
|
||||||
|
/// // Init worker thread
|
||||||
|
/// let s = multiply_init(s);
|
||||||
|
/// let s = s.spawn();
|
||||||
|
///
|
||||||
|
/// // Usage
|
||||||
|
/// let x = multiply(2, 8);
|
||||||
|
/// println!("myfn {x}");
|
||||||
|
///
|
||||||
|
/// // Shutdown worker thread
|
||||||
|
/// multiply_shutdown();
|
||||||
|
///
|
||||||
|
/// s.join().unwrap();
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
#[proc_macro_attribute]
|
||||||
|
pub fn worker(_attr: TokenStream, item: TokenStream) -> TokenStream {
|
||||||
|
let input: ItemFn = parse_macro_input!(item as ItemFn);
|
||||||
|
let fn_name = &input.sig.ident;
|
||||||
|
|
||||||
|
// Extract parameter names and types separately
|
||||||
|
let params: Vec<(Ident, Type)> = input
|
||||||
|
.sig
|
||||||
|
.inputs
|
||||||
|
.iter()
|
||||||
|
.filter_map(|arg| {
|
||||||
|
if let FnArg::Typed(pat_type) = arg {
|
||||||
|
let name = if let Pat::Ident(pat_ident) = *pat_type.pat.clone() {
|
||||||
|
pat_ident.ident.clone()
|
||||||
|
} else {
|
||||||
|
return None;
|
||||||
|
};
|
||||||
|
let ty = *pat_type.ty.clone();
|
||||||
|
Some((name, ty))
|
||||||
|
} else {
|
||||||
|
None
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.collect();
|
||||||
|
|
||||||
|
// Extract parameter names and types into separate lists for quoting
|
||||||
|
let param_names: Vec<Ident> = params.iter().map(|(name, _)| name.clone()).collect();
|
||||||
|
let param_types: Vec<Type> = params.iter().map(|(_, ty)| ty.clone()).collect();
|
||||||
|
|
||||||
|
for t in ¶m_types {
|
||||||
|
println!("param {}", t.to_token_stream().to_string());
|
||||||
|
}
|
||||||
|
|
||||||
|
// Extract return type
|
||||||
|
let return_type = match &input.sig.output {
|
||||||
|
ReturnType::Type(_, ty) => quote!(#ty),
|
||||||
|
ReturnType::Default => quote!(()),
|
||||||
|
};
|
||||||
|
|
||||||
|
// Extract function body
|
||||||
|
let body = &input.block;
|
||||||
|
|
||||||
|
let wrapper_fn = format_ident!("{}_wrapper", fn_name);
|
||||||
|
let worker_fn = format_ident!("{}_worker", fn_name);
|
||||||
|
let init_fn = format_ident!("{}_init", fn_name);
|
||||||
|
let init_fn_scoped = format_ident!("{}_init_scoped", fn_name);
|
||||||
|
let fn_scope_struct = format_ident!("{}_Scoped", fn_name);
|
||||||
|
let shutdown_fn = format_ident!("{}_shutdown", fn_name);
|
||||||
|
|
||||||
|
let param_unpacking = param_names.iter().enumerate().map(|(i, name)| {
|
||||||
|
if param_names.len() == 1 {
|
||||||
|
return quote! {
|
||||||
|
let #name = i;
|
||||||
|
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
let param_type = ¶m_types[i];
|
||||||
|
if let Type::Path(_) = param_type {
|
||||||
|
quote! {
|
||||||
|
let #name = i.#i;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
quote! {
|
||||||
|
let #name = i;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
let output = quote! {
|
||||||
|
pub fn #fn_name(#(#param_names: #param_types),*) -> #return_type {
|
||||||
|
let i: comrade::serde_json::Value = comrade::serde_json::to_value( (#(#param_names),*) ).unwrap();
|
||||||
|
serde_json::from_value(comrade::UNION.get(stringify!(#fn_name)).unwrap().send(i)).unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn #wrapper_fn(task: JobOrder<comrade::serde_json::Value, comrade::serde_json::Value>) {
|
||||||
|
let i = task.param.clone();
|
||||||
|
|
||||||
|
// Deserialize the parameter into the function's expected types
|
||||||
|
let i: (#(#param_types),*) = comrade::serde_json::from_value(i).unwrap();
|
||||||
|
|
||||||
|
#(#param_unpacking)*
|
||||||
|
|
||||||
|
let res = #body;
|
||||||
|
|
||||||
|
task.done(comrade::serde_json::to_value(&res).unwrap());
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn #worker_fn(recv: Receiver<JobOrder<comrade::serde_json::Value, comrade::serde_json::Value>>) {
|
||||||
|
loop {
|
||||||
|
let task = recv.recv();
|
||||||
|
|
||||||
|
match task {
|
||||||
|
Ok(task) => {
|
||||||
|
if let comrade::serde_json::Value::Object(obj) = &task.param {
|
||||||
|
if obj.contains_key("task") {
|
||||||
|
log::info!("Shutdown requested for task worker {}", stringify!(#fn_name));
|
||||||
|
task.done(comrade::serde_json::json!({"ok": 1}));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#wrapper_fn(task)
|
||||||
|
},
|
||||||
|
Err(e) => {
|
||||||
|
log::error!("Error receiving task: {e:?}");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[doc = "Shutdown the worker"]
|
||||||
|
pub fn #shutdown_fn() {
|
||||||
|
comrade::UNION.get(stringify!(#fn_name)).unwrap().send(comrade::serde_json::json!({"task": "shutdown"}));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[doc = "Initialize a worker thread on `ServiceManager`"]
|
||||||
|
pub fn #init_fn(sm: ServiceManager) -> ServiceManager {
|
||||||
|
let (dispatch, recv): (JobDispatcher<_, _>, Receiver<JobOrder<_, _>>) = JobDispatcher::new();
|
||||||
|
|
||||||
|
let sm = sm.register(stringify!(#worker_fn), move |_| {
|
||||||
|
#worker_fn(recv.clone());
|
||||||
|
});
|
||||||
|
|
||||||
|
comrade::UNION.insert(stringify!(#fn_name), dispatch);
|
||||||
|
|
||||||
|
sm
|
||||||
|
}
|
||||||
|
|
||||||
|
#[allow(non_camel_case_types)]
|
||||||
|
pub struct #fn_scope_struct {}
|
||||||
|
|
||||||
|
impl #fn_scope_struct {
|
||||||
|
pub fn call(&self, #(#param_names: #param_types),*) -> #return_type {
|
||||||
|
#fn_name(#(#param_names),*)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Drop for #fn_scope_struct {
|
||||||
|
fn drop(&mut self) {
|
||||||
|
log::info!("Scoped task worker got dropped.");
|
||||||
|
#shutdown_fn();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[doc = "Initialize a worker thread on `ServiceManager` on a scoped lifetime"]
|
||||||
|
pub fn #init_fn_scoped(sm: ServiceManager) -> (ServiceManager, #fn_scope_struct) {
|
||||||
|
let (dispatch, recv): (JobDispatcher<_, _>, Receiver<JobOrder<_, _>>) = JobDispatcher::new();
|
||||||
|
|
||||||
|
let sm = sm.register(stringify!(#worker_fn), move |_| {
|
||||||
|
#worker_fn(recv.clone());
|
||||||
|
});
|
||||||
|
|
||||||
|
comrade::UNION.insert(stringify!(#fn_name), dispatch);
|
||||||
|
|
||||||
|
(sm, #fn_scope_struct {})
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
output.into()
|
||||||
|
}
|
||||||
|
|
@ -8,20 +8,66 @@ fn main() {
|
||||||
log::info!("Running services example");
|
log::info!("Running services example");
|
||||||
|
|
||||||
// persistent background services
|
// persistent background services
|
||||||
let mut s = ServiceManager::new();
|
let mut s_decay = ServiceManager::new().mode(comrade::service::ServiceMode::Decay);
|
||||||
|
|
||||||
s.register("myservice", |_| {
|
s_decay = s_decay.register(
|
||||||
let mut c = 0;
|
"myservice",
|
||||||
loop {
|
Box::new(|_| {
|
||||||
// ...
|
let mut c = 0;
|
||||||
println!("I am doing something!");
|
loop {
|
||||||
std::thread::sleep(Duration::from_secs(1));
|
// ...
|
||||||
c += 1;
|
println!("I am doing something!");
|
||||||
if c == 3 {
|
std::thread::sleep(Duration::from_millis(400));
|
||||||
panic!("Oh no!");
|
c += 1;
|
||||||
|
if c == 3 {
|
||||||
|
panic!("Oh no!");
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}),
|
||||||
});
|
);
|
||||||
|
|
||||||
|
let s = s_decay.register(
|
||||||
|
"myservice2",
|
||||||
|
Box::new(|_| {
|
||||||
|
let mut c = 0;
|
||||||
|
loop {
|
||||||
|
// ...
|
||||||
|
println!("I am doing something! 2");
|
||||||
|
std::thread::sleep(Duration::from_millis(400));
|
||||||
|
c += 1;
|
||||||
|
if c == 3 {
|
||||||
|
println!("Bye");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}),
|
||||||
|
);
|
||||||
|
|
||||||
|
let st = s.spawn();
|
||||||
|
|
||||||
|
st.join().unwrap();
|
||||||
|
|
||||||
|
println!("Ended decaying ServiceManager");
|
||||||
|
|
||||||
|
// daemon mode
|
||||||
|
|
||||||
|
let mut s = ServiceManager::new().mode(comrade::service::ServiceMode::Daemon);
|
||||||
|
|
||||||
|
s = s.register(
|
||||||
|
"myservice",
|
||||||
|
Box::new(|_| {
|
||||||
|
let mut c = 0;
|
||||||
|
loop {
|
||||||
|
// ...
|
||||||
|
println!("I am doing something forever!");
|
||||||
|
std::thread::sleep(Duration::from_millis(400));
|
||||||
|
c += 1;
|
||||||
|
if c == 3 {
|
||||||
|
panic!("Oh no!");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}),
|
||||||
|
);
|
||||||
|
|
||||||
let st = s.spawn();
|
let st = s.spawn();
|
||||||
|
|
||||||
|
|
|
||||||
50
examples/work.rs
Normal file
50
examples/work.rs
Normal file
|
|
@ -0,0 +1,50 @@
|
||||||
|
use comrade::{
|
||||||
|
job::{JobDispatcher, JobOrder},
|
||||||
|
service::ServiceManager,
|
||||||
|
worker,
|
||||||
|
};
|
||||||
|
use crossbeam::channel::Receiver;
|
||||||
|
|
||||||
|
#[worker]
|
||||||
|
pub fn myfn(i: i32) -> i32 {
|
||||||
|
i * 2
|
||||||
|
}
|
||||||
|
|
||||||
|
#[worker]
|
||||||
|
pub fn multiply(a: i32, b: i32) -> i32 {
|
||||||
|
a * b
|
||||||
|
}
|
||||||
|
|
||||||
|
fn do_work(multiply: multiply_Scoped, myfn: myfn_Scoped) {
|
||||||
|
for i in 0..10 {
|
||||||
|
let x = multiply.call(i, i);
|
||||||
|
println!("myfn {i} -> {x}");
|
||||||
|
let x = myfn.call(i);
|
||||||
|
println!("myfn {i} -> {x}");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
env_logger::init();
|
||||||
|
|
||||||
|
let s = ServiceManager::new().mode(comrade::service::ServiceMode::Decay);
|
||||||
|
|
||||||
|
let (s, multiply) = multiply_init_scoped(s);
|
||||||
|
let (s, myfn_fn) = myfn_init_scoped(s);
|
||||||
|
let s = s.spawn();
|
||||||
|
|
||||||
|
do_work(multiply, myfn_fn);
|
||||||
|
|
||||||
|
s.join().unwrap();
|
||||||
|
|
||||||
|
let s = ServiceManager::new().mode(comrade::service::ServiceMode::Decay);
|
||||||
|
let s = myfn_init(s);
|
||||||
|
let s = s.spawn();
|
||||||
|
|
||||||
|
let x = myfn(55);
|
||||||
|
println!("myfn {x}");
|
||||||
|
|
||||||
|
myfn_shutdown();
|
||||||
|
|
||||||
|
s.join().unwrap();
|
||||||
|
}
|
||||||
21
src/job.rs
21
src/job.rs
|
|
@ -1,9 +1,10 @@
|
||||||
use std::sync::{Arc, Mutex, mpsc};
|
use crossbeam::channel::{Receiver, Sender};
|
||||||
|
use std::sync::mpsc;
|
||||||
|
|
||||||
#[derive(Clone)]
|
#[derive(Clone)]
|
||||||
/// A generic job dispatcher struct that allows sending jobs of type `T` and receiving results of type `V` using message passing.
|
/// A generic job dispatcher struct that allows sending jobs of type `T` and receiving results of type `V` using message passing.
|
||||||
pub struct JobDispatcher<T: Send + 'static, V: Send + 'static> {
|
pub struct JobDispatcher<T: Send + 'static, V: Send + 'static> {
|
||||||
sender: Arc<Mutex<mpsc::Sender<JobOrder<T, V>>>>,
|
sender: Sender<JobOrder<T, V>>,
|
||||||
}
|
}
|
||||||
|
|
||||||
impl<T: Send + 'static, V: Send + 'static> JobDispatcher<T, V> {
|
impl<T: Send + 'static, V: Send + 'static> JobDispatcher<T, V> {
|
||||||
|
|
@ -27,14 +28,10 @@ impl<T: Send + 'static, V: Send + 'static> JobDispatcher<T, V> {
|
||||||
/// assert_eq!(result, 4);
|
/// assert_eq!(result, 4);
|
||||||
/// ```
|
/// ```
|
||||||
#[must_use]
|
#[must_use]
|
||||||
pub fn new() -> (Self, mpsc::Receiver<JobOrder<T, V>>) {
|
pub fn new() -> (Self, Receiver<JobOrder<T, V>>) {
|
||||||
let (sender, receiver) = mpsc::channel();
|
let (sender, receiver) = crossbeam::channel::bounded(12);
|
||||||
(
|
|
||||||
Self {
|
(Self { sender: sender }, receiver)
|
||||||
sender: Arc::new(Mutex::new(sender)),
|
|
||||||
},
|
|
||||||
receiver,
|
|
||||||
)
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/// Sends a job of type `T` to the job dispatcher and waits for its result of type `V`.
|
/// Sends a job of type `T` to the job dispatcher and waits for its result of type `V`.
|
||||||
|
|
@ -47,7 +44,7 @@ impl<T: Send + 'static, V: Send + 'static> JobDispatcher<T, V> {
|
||||||
let job_order = JobOrder::new(param, move |ret| {
|
let job_order = JobOrder::new(param, move |ret| {
|
||||||
tx.send(ret).unwrap();
|
tx.send(ret).unwrap();
|
||||||
});
|
});
|
||||||
self.sender.lock().unwrap().send(job_order).unwrap();
|
self.sender.send(job_order).unwrap();
|
||||||
rx.recv().unwrap()
|
rx.recv().unwrap()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -58,7 +55,7 @@ impl<T: Send + 'static, V: Send + 'static> JobDispatcher<T, V> {
|
||||||
let job_order = JobOrder::new(param, move |ret| {
|
let job_order = JobOrder::new(param, move |ret| {
|
||||||
tx.send(ret).unwrap();
|
tx.send(ret).unwrap();
|
||||||
});
|
});
|
||||||
self.sender.lock().ok()?.send(job_order).ok()?;
|
self.sender.send(job_order).ok()?;
|
||||||
rx.recv().ok()
|
rx.recv().ok()
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
13
src/lib.rs
13
src/lib.rs
|
|
@ -2,6 +2,19 @@ use std::{sync::mpsc, thread, time::Instant};
|
||||||
|
|
||||||
pub mod job;
|
pub mod job;
|
||||||
pub mod service;
|
pub mod service;
|
||||||
|
pub use comrade_macro::worker;
|
||||||
|
use dashmap::DashMap;
|
||||||
|
use once_cell::sync::Lazy;
|
||||||
|
pub use serde_json;
|
||||||
|
|
||||||
|
// TODO : worker docs + refactor
|
||||||
|
// TODO : worker non blocking fn call
|
||||||
|
// TODO : worker parallelism (Load Balanced Queue + Multiple Threads)
|
||||||
|
// TODO : refactor dispatcher backends (memory, valkey)
|
||||||
|
|
||||||
|
pub static UNION: Lazy<
|
||||||
|
DashMap<&'static str, job::JobDispatcher<serde_json::Value, serde_json::Value>>,
|
||||||
|
> = Lazy::new(DashMap::new);
|
||||||
|
|
||||||
/// Rally Function
|
/// Rally Function
|
||||||
///
|
///
|
||||||
|
|
|
||||||
|
|
@ -54,24 +54,47 @@ impl Drop for DeadManSwitch {
|
||||||
/// Service Manager
|
/// Service Manager
|
||||||
///
|
///
|
||||||
/// This will manage and keep background services running-
|
/// This will manage and keep background services running-
|
||||||
pub struct ServiceManager<T: Fn(DeadManSwitch) -> () + 'static> {
|
pub struct ServiceManager {
|
||||||
pub services: HashMap<String, Arc<T>>,
|
pub services: HashMap<String, Arc<Box<dyn Fn(DeadManSwitch) -> () + 'static + Send + Sync>>>,
|
||||||
|
pub mode: ServiceMode,
|
||||||
}
|
}
|
||||||
|
|
||||||
impl<T: Fn(DeadManSwitch) -> () + 'static + Send + Sync> ServiceManager<T> {
|
// TODO : impl decay mode
|
||||||
|
|
||||||
|
/// The mode on which services should operate
|
||||||
|
pub enum ServiceMode {
|
||||||
|
/// Behave like a daemon. Services can never die and will come back to life after beeing killed. They will always haunt you.
|
||||||
|
Daemon,
|
||||||
|
/// Graceful Decay. Services stay dead after beeing killed. If no services are running anymore the `ServiceManager` will commit suicide.
|
||||||
|
Decay,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl ServiceManager {
|
||||||
pub fn new() -> Self {
|
pub fn new() -> Self {
|
||||||
Self {
|
Self {
|
||||||
services: HashMap::new(),
|
services: HashMap::new(),
|
||||||
|
mode: ServiceMode::Daemon,
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/// Register a new background service
|
/// Set a `ServiceMode` to control the behaviour of services.
|
||||||
pub fn register(&mut self, service_name: &str, service: T) {
|
pub fn mode(mut self, mode: ServiceMode) -> Self {
|
||||||
self.services
|
self.mode = mode;
|
||||||
.insert(service_name.to_string(), Arc::new(service));
|
self
|
||||||
}
|
}
|
||||||
|
|
||||||
fn run(self) -> ! {
|
/// Register a new background service
|
||||||
|
pub fn register<T: Fn(DeadManSwitch) -> () + 'static + Send + Sync>(
|
||||||
|
mut self,
|
||||||
|
service_name: &str,
|
||||||
|
service: T,
|
||||||
|
) -> Self {
|
||||||
|
self.services
|
||||||
|
.insert(service_name.to_string(), Arc::new(Box::new(service)));
|
||||||
|
self
|
||||||
|
}
|
||||||
|
|
||||||
|
fn run(self) {
|
||||||
let mut threads = HashMap::new();
|
let mut threads = HashMap::new();
|
||||||
|
|
||||||
// Initial start
|
// Initial start
|
||||||
|
|
@ -93,6 +116,7 @@ impl<T: Fn(DeadManSwitch) -> () + 'static + Send + Sync> ServiceManager<T> {
|
||||||
// Monitor loop
|
// Monitor loop
|
||||||
loop {
|
loop {
|
||||||
let mut threads_new = HashMap::new();
|
let mut threads_new = HashMap::new();
|
||||||
|
let mut threads_rm = Vec::new();
|
||||||
|
|
||||||
for (service, (t, dm)) in &mut threads {
|
for (service, (t, dm)) in &mut threads {
|
||||||
let alive = dm.alive();
|
let alive = dm.alive();
|
||||||
|
|
@ -102,28 +126,46 @@ impl<T: Fn(DeadManSwitch) -> () + 'static + Send + Sync> ServiceManager<T> {
|
||||||
);
|
);
|
||||||
|
|
||||||
if !alive {
|
if !alive {
|
||||||
log::warn!("Service {service} died. Restarting...");
|
// Restart (Daemon)
|
||||||
|
match self.mode {
|
||||||
|
ServiceMode::Daemon => {
|
||||||
|
log::warn!("Service {service} died. Restarting...");
|
||||||
|
|
||||||
while !t.is_finished() {
|
while !t.is_finished() {
|
||||||
log::debug!("waiting for thread");
|
log::debug!("waiting for thread");
|
||||||
|
}
|
||||||
|
|
||||||
|
let f = Arc::clone(self.services.get(service).unwrap());
|
||||||
|
|
||||||
|
let (dms, dmr) = DeadManSwitch::new();
|
||||||
|
threads_new.insert(
|
||||||
|
service.clone(),
|
||||||
|
(
|
||||||
|
std::thread::spawn(move || {
|
||||||
|
f(dms);
|
||||||
|
}),
|
||||||
|
dmr,
|
||||||
|
),
|
||||||
|
);
|
||||||
|
}
|
||||||
|
ServiceMode::Decay => {
|
||||||
|
log::info!("Service {service} died.");
|
||||||
|
threads_rm.push(service.clone());
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
let f = Arc::clone(self.services.get(service).unwrap());
|
|
||||||
|
|
||||||
let (dms, dmr) = DeadManSwitch::new();
|
|
||||||
threads_new.insert(
|
|
||||||
service.clone(),
|
|
||||||
(
|
|
||||||
std::thread::spawn(move || {
|
|
||||||
f(dms);
|
|
||||||
}),
|
|
||||||
dmr,
|
|
||||||
),
|
|
||||||
);
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
for t in threads_rm {
|
||||||
|
threads.remove(&t);
|
||||||
|
}
|
||||||
|
|
||||||
threads.extend(threads_new);
|
threads.extend(threads_new);
|
||||||
|
|
||||||
|
if threads.is_empty() && matches!(self.mode, ServiceMode::Decay) {
|
||||||
|
log::info!("All my services are dead. Commiting suicide...");
|
||||||
|
break;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue