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-rw-r--r--karyons_core/Cargo.toml16
-rw-r--r--karyons_core/src/async_utils/backoff.rs115
-rw-r--r--karyons_core/src/async_utils/condvar.rs387
-rw-r--r--karyons_core/src/async_utils/condwait.rs96
-rw-r--r--karyons_core/src/async_utils/mod.rs13
-rw-r--r--karyons_core/src/async_utils/select.rs99
-rw-r--r--karyons_core/src/async_utils/task_group.rs197
-rw-r--r--karyons_core/src/async_utils/timeout.rs52
-rw-r--r--karyons_core/src/error.rs51
-rw-r--r--karyons_core/src/event.rs451
-rw-r--r--karyons_core/src/lib.rs21
-rw-r--r--karyons_core/src/pubsub.rs115
-rw-r--r--karyons_core/src/utils/decode.rs10
-rw-r--r--karyons_core/src/utils/encode.rs15
-rw-r--r--karyons_core/src/utils/mod.rs19
-rw-r--r--karyons_core/src/utils/path.rs39
16 files changed, 0 insertions, 1696 deletions
diff --git a/karyons_core/Cargo.toml b/karyons_core/Cargo.toml
deleted file mode 100644
index 712b7db..0000000
--- a/karyons_core/Cargo.toml
+++ /dev/null
@@ -1,16 +0,0 @@
-[package]
-name = "karyons_core"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-smol = "1.3.0"
-pin-project-lite = "0.2.13"
-log = "0.4.20"
-bincode = { version="2.0.0-rc.3", features = ["derive"]}
-chrono = "0.4.30"
-rand = "0.8.5"
-thiserror = "1.0.47"
-dirs = "5.0.1"
diff --git a/karyons_core/src/async_utils/backoff.rs b/karyons_core/src/async_utils/backoff.rs
deleted file mode 100644
index f7e131d..0000000
--- a/karyons_core/src/async_utils/backoff.rs
+++ /dev/null
@@ -1,115 +0,0 @@
-use std::{
- cmp::min,
- sync::atomic::{AtomicBool, AtomicU32, Ordering},
- time::Duration,
-};
-
-use smol::Timer;
-
-/// Exponential backoff
-/// <https://en.wikipedia.org/wiki/Exponential_backoff>
-///
-/// # Examples
-///
-/// ```
-/// use karyons_core::async_utils::Backoff;
-///
-/// async {
-/// let backoff = Backoff::new(300, 3000);
-///
-/// loop {
-/// backoff.sleep().await;
-///
-/// // do something
-/// break;
-/// }
-///
-/// backoff.reset();
-///
-/// // ....
-/// };
-///
-/// ```
-///
-pub struct Backoff {
- /// The base delay in milliseconds for the initial retry.
- base_delay: u64,
- /// The max delay in milliseconds allowed for a retry.
- max_delay: u64,
- /// Atomic counter
- retries: AtomicU32,
- /// Stop flag
- stop: AtomicBool,
-}
-
-impl Backoff {
- /// Creates a new Backoff.
- pub fn new(base_delay: u64, max_delay: u64) -> Self {
- Self {
- base_delay,
- max_delay,
- retries: AtomicU32::new(0),
- stop: AtomicBool::new(false),
- }
- }
-
- /// Sleep based on the current retry count and delay values.
- /// Retruns the delay value.
- pub async fn sleep(&self) -> u64 {
- if self.stop.load(Ordering::SeqCst) {
- Timer::after(Duration::from_millis(self.max_delay)).await;
- return self.max_delay;
- }
-
- let retries = self.retries.load(Ordering::SeqCst);
- let delay = self.base_delay * (2_u64).pow(retries);
- let delay = min(delay, self.max_delay);
-
- if delay == self.max_delay {
- self.stop.store(true, Ordering::SeqCst);
- }
-
- self.retries.store(retries + 1, Ordering::SeqCst);
-
- Timer::after(Duration::from_millis(delay)).await;
- delay
- }
-
- /// Reset the retry counter to 0.
- pub fn reset(&self) {
- self.retries.store(0, Ordering::SeqCst);
- self.stop.store(false, Ordering::SeqCst);
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use std::sync::Arc;
-
- #[test]
- fn test_backoff() {
- smol::block_on(async move {
- let backoff = Arc::new(Backoff::new(5, 15));
- let backoff_c = backoff.clone();
- smol::spawn(async move {
- let delay = backoff_c.sleep().await;
- assert_eq!(delay, 5);
-
- let delay = backoff_c.sleep().await;
- assert_eq!(delay, 10);
-
- let delay = backoff_c.sleep().await;
- assert_eq!(delay, 15);
- })
- .await;
-
- smol::spawn(async move {
- backoff.reset();
- let delay = backoff.sleep().await;
- assert_eq!(delay, 5);
- })
- .await;
- });
- }
-}
diff --git a/karyons_core/src/async_utils/condvar.rs b/karyons_core/src/async_utils/condvar.rs
deleted file mode 100644
index 814f78f..0000000
--- a/karyons_core/src/async_utils/condvar.rs
+++ /dev/null
@@ -1,387 +0,0 @@
-use std::{
- collections::HashMap,
- future::Future,
- pin::Pin,
- sync::Mutex,
- task::{Context, Poll, Waker},
-};
-
-use smol::lock::MutexGuard;
-
-use crate::utils::random_16;
-
-/// CondVar is an async version of <https://doc.rust-lang.org/std/sync/struct.Condvar.html>
-///
-/// # Example
-///
-///```
-/// use std::sync::Arc;
-///
-/// use smol::lock::Mutex;
-///
-/// use karyons_core::async_utils::CondVar;
-///
-/// async {
-///
-/// let val = Arc::new(Mutex::new(false));
-/// let condvar = Arc::new(CondVar::new());
-///
-/// let val_cloned = val.clone();
-/// let condvar_cloned = condvar.clone();
-/// smol::spawn(async move {
-/// let mut val = val_cloned.lock().await;
-///
-/// // While the boolean flag is false, wait for a signal.
-/// while !*val {
-/// val = condvar_cloned.wait(val).await;
-/// }
-///
-/// // ...
-/// });
-///
-/// let condvar_cloned = condvar.clone();
-/// smol::spawn(async move {
-/// let mut val = val.lock().await;
-///
-/// // While the boolean flag is false, wait for a signal.
-/// while !*val {
-/// val = condvar_cloned.wait(val).await;
-/// }
-///
-/// // ...
-/// });
-///
-/// // Wake up all waiting tasks on this condvar
-/// condvar.broadcast();
-/// };
-///
-/// ```
-
-pub struct CondVar {
- inner: Mutex<Wakers>,
-}
-
-impl CondVar {
- /// Creates a new CondVar
- pub fn new() -> Self {
- Self {
- inner: Mutex::new(Wakers::new()),
- }
- }
-
- /// Blocks the current task until this condition variable receives a notification.
- pub async fn wait<'a, T>(&self, g: MutexGuard<'a, T>) -> MutexGuard<'a, T> {
- let m = MutexGuard::source(&g);
-
- CondVarAwait::new(self, g).await;
-
- m.lock().await
- }
-
- /// Wakes up one blocked task waiting on this condvar.
- pub fn signal(&self) {
- self.inner.lock().unwrap().wake(true);
- }
-
- /// Wakes up all blocked tasks waiting on this condvar.
- pub fn broadcast(&self) {
- self.inner.lock().unwrap().wake(false);
- }
-}
-
-impl Default for CondVar {
- fn default() -> Self {
- Self::new()
- }
-}
-
-struct CondVarAwait<'a, T> {
- id: Option<u16>,
- condvar: &'a CondVar,
- guard: Option<MutexGuard<'a, T>>,
-}
-
-impl<'a, T> CondVarAwait<'a, T> {
- fn new(condvar: &'a CondVar, guard: MutexGuard<'a, T>) -> Self {
- Self {
- condvar,
- guard: Some(guard),
- id: None,
- }
- }
-}
-
-impl<'a, T> Future for CondVarAwait<'a, T> {
- type Output = ();
-
- fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
- let mut inner = self.condvar.inner.lock().unwrap();
-
- match self.guard.take() {
- Some(_) => {
- // the first pooll will release the Mutexguard
- self.id = Some(inner.put(Some(cx.waker().clone())));
- Poll::Pending
- }
- None => {
- // Return Ready if it has already been polled and removed
- // from the waker list.
- if self.id.is_none() {
- return Poll::Ready(());
- }
-
- let i = self.id.as_ref().unwrap();
- match inner.wakers.get_mut(i).unwrap() {
- Some(wk) => {
- // This will prevent cloning again
- if !wk.will_wake(cx.waker()) {
- *wk = cx.waker().clone();
- }
- Poll::Pending
- }
- None => {
- inner.delete(i);
- self.id = None;
- Poll::Ready(())
- }
- }
- }
- }
- }
-}
-
-impl<'a, T> Drop for CondVarAwait<'a, T> {
- fn drop(&mut self) {
- if let Some(id) = self.id {
- let mut inner = self.condvar.inner.lock().unwrap();
- if let Some(wk) = inner.wakers.get_mut(&id).unwrap().take() {
- wk.wake()
- }
- }
- }
-}
-
-/// Wakers is a helper struct to store the task wakers
-struct Wakers {
- wakers: HashMap<u16, Option<Waker>>,
-}
-
-impl Wakers {
- fn new() -> Self {
- Self {
- wakers: HashMap::new(),
- }
- }
-
- fn put(&mut self, waker: Option<Waker>) -> u16 {
- let mut id: u16;
-
- id = random_16();
- while self.wakers.contains_key(&id) {
- id = random_16();
- }
-
- self.wakers.insert(id, waker);
- id
- }
-
- fn delete(&mut self, id: &u16) -> Option<Option<Waker>> {
- self.wakers.remove(id)
- }
-
- fn wake(&mut self, signal: bool) {
- for (_, wk) in self.wakers.iter_mut() {
- match wk.take() {
- Some(w) => {
- w.wake();
- if signal {
- break;
- }
- }
- None => continue,
- }
- }
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use smol::lock::Mutex;
- use std::{
- collections::VecDeque,
- sync::{
- atomic::{AtomicUsize, Ordering},
- Arc,
- },
- };
-
- // The tests below demonstrate a solution to a problem in the Wikipedia
- // explanation of condition variables:
- // https://en.wikipedia.org/wiki/Monitor_(synchronization)#Solving_the_bounded_producer/consumer_problem.
-
- struct Queue {
- items: VecDeque<String>,
- max_len: usize,
- }
- impl Queue {
- fn new(max_len: usize) -> Self {
- Self {
- items: VecDeque::new(),
- max_len,
- }
- }
-
- fn is_full(&self) -> bool {
- self.items.len() == self.max_len
- }
-
- fn is_empty(&self) -> bool {
- self.items.is_empty()
- }
- }
-
- #[test]
- fn test_condvar_signal() {
- smol::block_on(async {
- let number_of_tasks = 30;
-
- let queue = Arc::new(Mutex::new(Queue::new(5)));
- let condvar_full = Arc::new(CondVar::new());
- let condvar_empty = Arc::new(CondVar::new());
-
- let queue_cloned = queue.clone();
- let condvar_full_cloned = condvar_full.clone();
- let condvar_empty_cloned = condvar_empty.clone();
-
- let _producer1 = smol::spawn(async move {
- for i in 1..number_of_tasks {
- // Lock queue mtuex
- let mut queue = queue_cloned.lock().await;
-
- // Check if the queue is non-full
- while queue.is_full() {
- // Release queue mutex and sleep
- queue = condvar_full_cloned.wait(queue).await;
- }
-
- queue.items.push_back(format!("task {i}"));
-
- // Wake up the consumer
- condvar_empty_cloned.signal();
- }
- });
-
- let queue_cloned = queue.clone();
- let task_consumed = Arc::new(AtomicUsize::new(0));
- let task_consumed_ = task_consumed.clone();
- let consumer = smol::spawn(async move {
- for _ in 1..number_of_tasks {
- // Lock queue mtuex
- let mut queue = queue_cloned.lock().await;
-
- // Check if the queue is non-empty
- while queue.is_empty() {
- // Release queue mutex and sleep
- queue = condvar_empty.wait(queue).await;
- }
-
- let _ = queue.items.pop_front().unwrap();
-
- task_consumed_.fetch_add(1, Ordering::Relaxed);
-
- // Do something
-
- // Wake up the producer
- condvar_full.signal();
- }
- });
-
- consumer.await;
- assert!(queue.lock().await.is_empty());
- assert_eq!(task_consumed.load(Ordering::Relaxed), 29);
- });
- }
-
- #[test]
- fn test_condvar_broadcast() {
- smol::block_on(async {
- let tasks = 30;
-
- let queue = Arc::new(Mutex::new(Queue::new(5)));
- let condvar = Arc::new(CondVar::new());
-
- let queue_cloned = queue.clone();
- let condvar_cloned = condvar.clone();
- let _producer1 = smol::spawn(async move {
- for i in 1..tasks {
- // Lock queue mtuex
- let mut queue = queue_cloned.lock().await;
-
- // Check if the queue is non-full
- while queue.is_full() {
- // Release queue mutex and sleep
- queue = condvar_cloned.wait(queue).await;
- }
-
- queue.items.push_back(format!("producer1: task {i}"));
-
- // Wake up all producer and consumer tasks
- condvar_cloned.broadcast();
- }
- });
-
- let queue_cloned = queue.clone();
- let condvar_cloned = condvar.clone();
- let _producer2 = smol::spawn(async move {
- for i in 1..tasks {
- // Lock queue mtuex
- let mut queue = queue_cloned.lock().await;
-
- // Check if the queue is non-full
- while queue.is_full() {
- // Release queue mutex and sleep
- queue = condvar_cloned.wait(queue).await;
- }
-
- queue.items.push_back(format!("producer2: task {i}"));
-
- // Wake up all producer and consumer tasks
- condvar_cloned.broadcast();
- }
- });
-
- let queue_cloned = queue.clone();
- let task_consumed = Arc::new(AtomicUsize::new(0));
- let task_consumed_ = task_consumed.clone();
-
- let consumer = smol::spawn(async move {
- for _ in 1..((tasks * 2) - 1) {
- {
- // Lock queue mutex
- let mut queue = queue_cloned.lock().await;
-
- // Check if the queue is non-empty
- while queue.is_empty() {
- // Release queue mutex and sleep
- queue = condvar.wait(queue).await;
- }
-
- let _ = queue.items.pop_front().unwrap();
-
- task_consumed_.fetch_add(1, Ordering::Relaxed);
-
- // Do something
-
- // Wake up all producer and consumer tasks
- condvar.broadcast();
- }
- }
- });
-
- consumer.await;
- assert!(queue.lock().await.is_empty());
- assert_eq!(task_consumed.load(Ordering::Relaxed), 58);
- });
- }
-}
diff --git a/karyons_core/src/async_utils/condwait.rs b/karyons_core/src/async_utils/condwait.rs
deleted file mode 100644
index f16a99e..0000000
--- a/karyons_core/src/async_utils/condwait.rs
+++ /dev/null
@@ -1,96 +0,0 @@
-use smol::lock::Mutex;
-
-use super::CondVar;
-
-/// CondWait is a wrapper struct for CondVar with a Mutex boolean flag.
-///
-/// # Example
-///
-///```
-/// use std::sync::Arc;
-///
-/// use karyons_core::async_utils::CondWait;
-///
-/// async {
-/// let cond_wait = Arc::new(CondWait::new());
-/// let cond_wait_cloned = cond_wait.clone();
-/// let task = smol::spawn(async move {
-/// cond_wait_cloned.wait().await;
-/// // ...
-/// });
-///
-/// cond_wait.signal().await;
-/// };
-///
-/// ```
-///
-pub struct CondWait {
- /// The CondVar
- condvar: CondVar,
- /// Boolean flag
- w: Mutex<bool>,
-}
-
-impl CondWait {
- /// Creates a new CondWait.
- pub fn new() -> Self {
- Self {
- condvar: CondVar::new(),
- w: Mutex::new(false),
- }
- }
-
- /// Waits for a signal or broadcast.
- pub async fn wait(&self) {
- let mut w = self.w.lock().await;
-
- // While the boolean flag is false, wait for a signal.
- while !*w {
- w = self.condvar.wait(w).await;
- }
- }
-
- /// Signal a waiting task.
- pub async fn signal(&self) {
- *self.w.lock().await = true;
- self.condvar.signal();
- }
-
- /// Signal all waiting tasks.
- pub async fn broadcast(&self) {
- *self.w.lock().await = true;
- self.condvar.broadcast();
- }
-
- /// Reset the boolean flag value to false.
- pub async fn reset(&self) {
- *self.w.lock().await = false;
- }
-}
-
-impl Default for CondWait {
- fn default() -> Self {
- Self::new()
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use std::sync::Arc;
-
- #[test]
- fn test_cond_wait() {
- smol::block_on(async {
- let cond_wait = Arc::new(CondWait::new());
- let cond_wait_cloned = cond_wait.clone();
- let task = smol::spawn(async move {
- cond_wait_cloned.wait().await;
- true
- });
-
- cond_wait.signal().await;
- assert!(task.await);
- });
- }
-}
diff --git a/karyons_core/src/async_utils/mod.rs b/karyons_core/src/async_utils/mod.rs
deleted file mode 100644
index c871bad..0000000
--- a/karyons_core/src/async_utils/mod.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-mod backoff;
-mod condvar;
-mod condwait;
-mod select;
-mod task_group;
-mod timeout;
-
-pub use backoff::Backoff;
-pub use condvar::CondVar;
-pub use condwait::CondWait;
-pub use select::{select, Either};
-pub use task_group::{TaskGroup, TaskResult};
-pub use timeout::timeout;
diff --git a/karyons_core/src/async_utils/select.rs b/karyons_core/src/async_utils/select.rs
deleted file mode 100644
index d61b355..0000000
--- a/karyons_core/src/async_utils/select.rs
+++ /dev/null
@@ -1,99 +0,0 @@
-use std::pin::Pin;
-use std::task::{Context, Poll};
-
-use pin_project_lite::pin_project;
-use smol::future::Future;
-
-/// Returns the result of the future that completes first, preferring future1
-/// if both are ready.
-///
-/// # Examples
-///
-/// ```
-/// use std::future;
-///
-/// use karyons_core::async_utils::{select, Either};
-///
-/// async {
-/// let fut1 = future::pending::<String>();
-/// let fut2 = future::ready(0);
-/// let res = select(fut1, fut2).await;
-/// assert!(matches!(res, Either::Right(0)));
-/// // ....
-/// };
-///
-/// ```
-///
-pub fn select<T1, T2, F1, F2>(future1: F1, future2: F2) -> Select<F1, F2>
-where
- F1: Future<Output = T1>,
- F2: Future<Output = T2>,
-{
- Select { future1, future2 }
-}
-
-pin_project! {
- #[derive(Debug)]
- pub struct Select<F1, F2> {
- #[pin]
- future1: F1,
- #[pin]
- future2: F2,
- }
-}
-
-/// The return value from the `select` function, indicating which future
-/// completed first.
-#[derive(Debug)]
-pub enum Either<T1, T2> {
- Left(T1),
- Right(T2),
-}
-
-// Implement the Future trait for the Select struct.
-impl<T1, T2, F1, F2> Future for Select<F1, F2>
-where
- F1: Future<Output = T1>,
- F2: Future<Output = T2>,
-{
- type Output = Either<T1, T2>;
-
- fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
- let this = self.project();
-
- if let Poll::Ready(t) = this.future1.poll(cx) {
- return Poll::Ready(Either::Left(t));
- }
-
- if let Poll::Ready(t) = this.future2.poll(cx) {
- return Poll::Ready(Either::Right(t));
- }
-
- Poll::Pending
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::{select, Either};
- use smol::Timer;
- use std::future;
-
- #[test]
- fn test_async_select() {
- smol::block_on(async move {
- let fut = select(Timer::never(), future::ready(0 as u32)).await;
- assert!(matches!(fut, Either::Right(0)));
-
- let fut1 = future::pending::<String>();
- let fut2 = future::ready(0);
- let res = select(fut1, fut2).await;
- assert!(matches!(res, Either::Right(0)));
-
- let fut1 = future::ready(0);
- let fut2 = future::pending::<String>();
- let res = select(fut1, fut2).await;
- assert!(matches!(res, Either::Left(_)));
- });
- }
-}
diff --git a/karyons_core/src/async_utils/task_group.rs b/karyons_core/src/async_utils/task_group.rs
deleted file mode 100644
index 8707d0e..0000000
--- a/karyons_core/src/async_utils/task_group.rs
+++ /dev/null
@@ -1,197 +0,0 @@
-use std::{future::Future, sync::Arc, sync::Mutex};
-
-use smol::Task;
-
-use crate::Executor;
-
-use super::{select, CondWait, Either};
-
-/// TaskGroup is a group of spawned tasks.
-///
-/// # Example
-///
-/// ```
-///
-/// use std::sync::Arc;
-///
-/// use karyons_core::async_utils::TaskGroup;
-///
-/// async {
-///
-/// let ex = Arc::new(smol::Executor::new());
-/// let group = TaskGroup::new();
-///
-/// group.spawn(ex.clone(), smol::Timer::never(), |_| async {});
-///
-/// group.cancel().await;
-///
-/// };
-///
-/// ```
-///
-pub struct TaskGroup {
- tasks: Mutex<Vec<TaskHandler>>,
- stop_signal: Arc<CondWait>,
-}
-
-impl<'a> TaskGroup {
- /// Creates a new task group
- pub fn new() -> Self {
- Self {
- tasks: Mutex::new(Vec::new()),
- stop_signal: Arc::new(CondWait::new()),
- }
- }
-
- /// Spawns a new task and calls the callback after it has completed
- /// or been canceled. The callback will have the `TaskResult` as a
- /// parameter, indicating whether the task completed or was canceled.
- pub fn spawn<T, Fut, CallbackF, CallbackFut>(
- &self,
- executor: Executor<'a>,
- fut: Fut,
- callback: CallbackF,
- ) where
- T: Send + Sync + 'a,
- Fut: Future<Output = T> + Send + 'a,
- CallbackF: FnOnce(TaskResult<T>) -> CallbackFut + Send + 'a,
- CallbackFut: Future<Output = ()> + Send + 'a,
- {
- let task = TaskHandler::new(executor.clone(), fut, callback, self.stop_signal.clone());
- self.tasks.lock().unwrap().push(task);
- }
-
- /// Checks if the task group is empty.
- pub fn is_empty(&self) -> bool {
- self.tasks.lock().unwrap().is_empty()
- }
-
- /// Get the number of the tasks in the group.
- pub fn len(&self) -> usize {
- self.tasks.lock().unwrap().len()
- }
-
- /// Cancels all tasks in the group.
- pub async fn cancel(&self) {
- self.stop_signal.broadcast().await;
-
- loop {
- let task = self.tasks.lock().unwrap().pop();
- if let Some(t) = task {
- t.cancel().await
- } else {
- break;
- }
- }
- }
-}
-
-impl Default for TaskGroup {
- fn default() -> Self {
- Self::new()
- }
-}
-
-/// The result of a spawned task.
-#[derive(Debug)]
-pub enum TaskResult<T> {
- Completed(T),
- Cancelled,
-}
-
-impl<T: std::fmt::Debug> std::fmt::Display for TaskResult<T> {
- fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
- match self {
- TaskResult::Cancelled => write!(f, "Task cancelled"),
- TaskResult::Completed(res) => write!(f, "Task completed: {:?}", res),
- }
- }
-}
-
-/// TaskHandler
-pub struct TaskHandler {
- task: Task<()>,
- cancel_flag: Arc<CondWait>,
-}
-
-impl<'a> TaskHandler {
- /// Creates a new task handle
- fn new<T, Fut, CallbackF, CallbackFut>(
- ex: Executor<'a>,
- fut: Fut,
- callback: CallbackF,
- stop_signal: Arc<CondWait>,
- ) -> TaskHandler
- where
- T: Send + Sync + 'a,
- Fut: Future<Output = T> + Send + 'a,
- CallbackF: FnOnce(TaskResult<T>) -> CallbackFut + Send + 'a,
- CallbackFut: Future<Output = ()> + Send + 'a,
- {
- let cancel_flag = Arc::new(CondWait::new());
- let cancel_flag_c = cancel_flag.clone();
- let task = ex.spawn(async move {
- //start_signal.signal().await;
- // Waits for either the stop signal or the task to complete.
- let result = select(stop_signal.wait(), fut).await;
-
- let result = match result {
- Either::Left(_) => TaskResult::Cancelled,
- Either::Right(res) => TaskResult::Completed(res),
- };
-
- // Call the callback with the result.
- callback(result).await;
-
- cancel_flag_c.signal().await;
- });
-
- TaskHandler { task, cancel_flag }
- }
-
- /// Cancels the task.
- async fn cancel(self) {
- self.cancel_flag.wait().await;
- self.task.cancel().await;
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use std::{future, sync::Arc};
-
- #[test]
- fn test_task_group() {
- let ex = Arc::new(smol::Executor::new());
- smol::block_on(ex.clone().run(async move {
- let group = Arc::new(TaskGroup::new());
-
- group.spawn(ex.clone(), future::ready(0), |res| async move {
- assert!(matches!(res, TaskResult::Completed(0)));
- });
-
- group.spawn(ex.clone(), future::pending::<()>(), |res| async move {
- assert!(matches!(res, TaskResult::Cancelled));
- });
-
- let groupc = group.clone();
- let exc = ex.clone();
- group.spawn(
- ex.clone(),
- async move {
- groupc.spawn(exc.clone(), future::pending::<()>(), |res| async move {
- assert!(matches!(res, TaskResult::Cancelled));
- });
- },
- |res| async move {
- assert!(matches!(res, TaskResult::Completed(_)));
- },
- );
-
- // Do something
- smol::Timer::after(std::time::Duration::from_millis(50)).await;
- group.cancel().await;
- }));
- }
-}
diff --git a/karyons_core/src/async_utils/timeout.rs b/karyons_core/src/async_utils/timeout.rs
deleted file mode 100644
index 7c55e1b..0000000
--- a/karyons_core/src/async_utils/timeout.rs
+++ /dev/null
@@ -1,52 +0,0 @@
-use std::{future::Future, time::Duration};
-
-use smol::Timer;
-
-use super::{select, Either};
-use crate::{error::Error, Result};
-
-/// Waits for a future to complete or times out if it exceeds a specified
-/// duration.
-///
-/// # Example
-///
-/// ```
-/// use std::{future, time::Duration};
-///
-/// use karyons_core::async_utils::timeout;
-///
-/// async {
-/// let fut = future::pending::<()>();
-/// assert!(timeout(Duration::from_millis(100), fut).await.is_err());
-/// };
-///
-/// ```
-///
-pub async fn timeout<T, F>(delay: Duration, future1: F) -> Result<T>
-where
- F: Future<Output = T>,
-{
- let result = select(Timer::after(delay), future1).await;
-
- match result {
- Either::Left(_) => Err(Error::Timeout),
- Either::Right(res) => Ok(res),
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use std::{future, time::Duration};
-
- #[test]
- fn test_timeout() {
- smol::block_on(async move {
- let fut = future::pending::<()>();
- assert!(timeout(Duration::from_millis(10), fut).await.is_err());
-
- let fut = smol::Timer::after(Duration::from_millis(10));
- assert!(timeout(Duration::from_millis(50), fut).await.is_ok())
- });
- }
-}
diff --git a/karyons_core/src/error.rs b/karyons_core/src/error.rs
deleted file mode 100644
index 15947c8..0000000
--- a/karyons_core/src/error.rs
+++ /dev/null
@@ -1,51 +0,0 @@
-use thiserror::Error as ThisError;
-
-pub type Result<T> = std::result::Result<T, Error>;
-
-#[derive(ThisError, Debug)]
-pub enum Error {
- #[error("IO Error: {0}")]
- IO(#[from] std::io::Error),
-
- #[error("Timeout Error")]
- Timeout,
-
- #[error("Path Not Found Error: {0}")]
- PathNotFound(&'static str),
-
- #[error("Channel Send Error: {0}")]
- ChannelSend(String),
-
- #[error("Channel Receive Error: {0}")]
- ChannelRecv(String),
-
- #[error("Decode Error: {0}")]
- Decode(String),
-
- #[error("Encode Error: {0}")]
- Encode(String),
-}
-
-impl<T> From<smol::channel::SendError<T>> for Error {
- fn from(error: smol::channel::SendError<T>) -> Self {
- Error::ChannelSend(error.to_string())
- }
-}
-
-impl From<smol::channel::RecvError> for Error {
- fn from(error: smol::channel::RecvError) -> Self {
- Error::ChannelRecv(error.to_string())
- }
-}
-
-impl From<bincode::error::DecodeError> for Error {
- fn from(error: bincode::error::DecodeError) -> Self {
- Error::Decode(error.to_string())
- }
-}
-
-impl From<bincode::error::EncodeError> for Error {
- fn from(error: bincode::error::EncodeError) -> Self {
- Error::Encode(error.to_string())
- }
-}
diff --git a/karyons_core/src/event.rs b/karyons_core/src/event.rs
deleted file mode 100644
index b856385..0000000
--- a/karyons_core/src/event.rs
+++ /dev/null
@@ -1,451 +0,0 @@
-use std::{
- any::Any,
- collections::HashMap,
- marker::PhantomData,
- sync::{Arc, Weak},
-};
-
-use chrono::{DateTime, Utc};
-use log::{error, trace};
-use smol::{
- channel::{Receiver, Sender},
- lock::Mutex,
-};
-
-use crate::{utils::random_16, Result};
-
-pub type ArcEventSys<T> = Arc<EventSys<T>>;
-pub type WeakEventSys<T> = Weak<EventSys<T>>;
-pub type EventListenerID = u16;
-
-type Listeners<T> = HashMap<T, HashMap<String, HashMap<EventListenerID, Sender<Event>>>>;
-
-/// EventSys supports event emission to registered listeners based on topics.
-/// # Example
-///
-/// ```
-/// use karyons_core::event::{EventSys, EventValueTopic, EventValue};
-///
-/// async {
-/// let event_sys = EventSys::new();
-///
-/// #[derive(Hash, PartialEq, Eq, Debug, Clone)]
-/// enum Topic {
-/// TopicA,
-/// TopicB,
-/// }
-///
-/// #[derive(Clone, Debug, PartialEq)]
-/// struct A(usize);
-///
-/// impl EventValue for A {
-/// fn id() -> &'static str {
-/// "A"
-/// }
-/// }
-///
-/// let listener = event_sys.register::<A>(&Topic::TopicA).await;
-///
-/// event_sys.emit_by_topic(&Topic::TopicA, &A(3)) .await;
-/// let msg: A = listener.recv().await.unwrap();
-///
-/// #[derive(Clone, Debug, PartialEq)]
-/// struct B(usize);
-///
-/// impl EventValue for B {
-/// fn id() -> &'static str {
-/// "B"
-/// }
-/// }
-///
-/// impl EventValueTopic for B {
-/// type Topic = Topic;
-/// fn topic() -> Self::Topic{
-/// Topic::TopicB
-/// }
-/// }
-///
-/// let listener = event_sys.register::<B>(&Topic::TopicB).await;
-///
-/// event_sys.emit(&B(3)) .await;
-/// let msg: B = listener.recv().await.unwrap();
-///
-/// // ....
-/// };
-///
-/// ```
-///
-pub struct EventSys<T> {
- listeners: Mutex<Listeners<T>>,
-}
-
-impl<T> EventSys<T>
-where
- T: std::hash::Hash + Eq + std::fmt::Debug + Clone,
-{
- /// Creates a new `EventSys`
- pub fn new() -> ArcEventSys<T> {
- Arc::new(Self {
- listeners: Mutex::new(HashMap::new()),
- })
- }
-
- /// Emits an event to the listeners.
- ///
- /// The event must implement the `EventValueTopic` trait to indicate the
- /// topic of the event. Otherwise, you can use `emit_by_topic()`.
- pub async fn emit<E: EventValueTopic<Topic = T> + Clone>(&self, value: &E) {
- let topic = E::topic();
- self.emit_by_topic(&topic, value).await;
- }
-
- /// Emits an event to the listeners.
- pub async fn emit_by_topic<E: EventValueAny + EventValue + Clone>(&self, topic: &T, value: &E) {
- let value: Arc<dyn EventValueAny> = Arc::new(value.clone());
- let event = Event::new(value);
-
- let mut topics = self.listeners.lock().await;
-
- if !topics.contains_key(topic) {
- error!("Failed to emit an event to a non-existent topic");
- return;
- }
-
- let event_ids = topics.get_mut(topic).unwrap();
- let event_id = E::id().to_string();
-
- if !event_ids.contains_key(&event_id) {
- error!("Failed to emit an event to a non-existent event id");
- return;
- }
-
- let mut failed_listeners = vec![];
-
- let listeners = event_ids.get_mut(&event_id).unwrap();
- for (listener_id, listener) in listeners.iter() {
- if let Err(err) = listener.send(event.clone()).await {
- trace!("Failed to emit event for topic {:?}: {}", topic, err);
- failed_listeners.push(*listener_id);
- }
- }
-
- for listener_id in failed_listeners.iter() {
- listeners.remove(listener_id);
- }
- }
-
- /// Registers a new event listener for the given topic.
- pub async fn register<E: EventValueAny + EventValue + Clone>(
- self: &Arc<Self>,
- topic: &T,
- ) -> EventListener<T, E> {
- let chan = smol::channel::unbounded();
-
- let topics = &mut self.listeners.lock().await;
-
- if !topics.contains_key(topic) {
- topics.insert(topic.clone(), HashMap::new());
- }
-
- let event_ids = topics.get_mut(topic).unwrap();
- let event_id = E::id().to_string();
-
- if !event_ids.contains_key(&event_id) {
- event_ids.insert(event_id.clone(), HashMap::new());
- }
-
- let listeners = event_ids.get_mut(&event_id).unwrap();
-
- let mut listener_id = random_16();
- while listeners.contains_key(&listener_id) {
- listener_id = random_16();
- }
-
- let listener =
- EventListener::new(listener_id, Arc::downgrade(self), chan.1, &event_id, topic);
-
- listeners.insert(listener_id, chan.0);
-
- listener
- }
-
- /// Removes an event listener attached to the given topic.
- async fn remove(&self, topic: &T, event_id: &str, listener_id: &EventListenerID) {
- let topics = &mut self.listeners.lock().await;
- if !topics.contains_key(topic) {
- error!("Failed to remove a non-existent topic");
- return;
- }
-
- let event_ids = topics.get_mut(topic).unwrap();
- if !event_ids.contains_key(event_id) {
- error!("Failed to remove a non-existent event id");
- return;
- }
-
- let listeners = event_ids.get_mut(event_id).unwrap();
- if listeners.remove(listener_id).is_none() {
- error!("Failed to remove a non-existent event listener");
- }
- }
-}
-
-/// EventListener listens for and receives events from the `EventSys`.
-pub struct EventListener<T, E> {
- id: EventListenerID,
- recv_chan: Receiver<Event>,
- event_sys: WeakEventSys<T>,
- event_id: String,
- topic: T,
- phantom: PhantomData<E>,
-}
-
-impl<T, E> EventListener<T, E>
-where
- T: std::hash::Hash + Eq + Clone + std::fmt::Debug,
- E: EventValueAny + Clone + EventValue,
-{
- /// Create a new event listener.
- fn new(
- id: EventListenerID,
- event_sys: WeakEventSys<T>,
- recv_chan: Receiver<Event>,
- event_id: &str,
- topic: &T,
- ) -> EventListener<T, E> {
- Self {
- id,
- recv_chan,
- event_sys,
- event_id: event_id.to_string(),
- topic: topic.clone(),
- phantom: PhantomData,
- }
- }
-
- /// Receive the next event.
- pub async fn recv(&self) -> Result<E> {
- match self.recv_chan.recv().await {
- Ok(event) => match ((*event.value).value_as_any()).downcast_ref::<E>() {
- Some(v) => Ok(v.clone()),
- None => unreachable!("Error when attempting to downcast the event value."),
- },
- Err(err) => {
- error!("Failed to receive new event: {err}");
- self.cancel().await;
- Err(err.into())
- }
- }
- }
-
- /// Cancels the listener and removes it from the `EventSys`.
- pub async fn cancel(&self) {
- self.event_sys()
- .remove(&self.topic, &self.event_id, &self.id)
- .await;
- }
-
- /// Returns the topic for this event listener.
- pub async fn topic(&self) -> &T {
- &self.topic
- }
-
- /// Returns the event id for this event listener.
- pub async fn event_id(&self) -> &String {
- &self.event_id
- }
-
- fn event_sys(&self) -> ArcEventSys<T> {
- self.event_sys.upgrade().unwrap()
- }
-}
-
-/// An event within the `EventSys`.
-#[derive(Clone, Debug)]
-pub struct Event {
- /// The time at which the event was created.
- created_at: DateTime<Utc>,
- /// The value of the Event.
- value: Arc<dyn EventValueAny>,
-}
-
-impl Event {
- /// Creates a new Event.
- pub fn new(value: Arc<dyn EventValueAny>) -> Self {
- Self {
- created_at: Utc::now(),
- value,
- }
- }
-}
-
-impl std::fmt::Display for Event {
- fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
- write!(f, "{}: {:?}", self.created_at, self.value)
- }
-}
-
-pub trait EventValueAny: Any + Send + Sync + std::fmt::Debug {
- fn value_as_any(&self) -> &dyn Any;
-}
-
-impl<T: Send + Sync + std::fmt::Debug + Any> EventValueAny for T {
- fn value_as_any(&self) -> &dyn Any {
- self
- }
-}
-
-pub trait EventValue: EventValueAny {
- fn id() -> &'static str
- where
- Self: Sized;
-}
-
-pub trait EventValueTopic: EventValueAny + EventValue {
- type Topic;
- fn topic() -> Self::Topic
- where
- Self: Sized;
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[derive(Hash, PartialEq, Eq, Debug, Clone)]
- enum Topic {
- TopicA,
- TopicB,
- TopicC,
- TopicD,
- TopicE,
- }
-
- #[derive(Clone, Debug, PartialEq)]
- struct A {
- a_value: usize,
- }
-
- #[derive(Clone, Debug, PartialEq)]
- struct B {
- b_value: usize,
- }
-
- #[derive(Clone, Debug, PartialEq)]
- struct C {
- c_value: usize,
- }
-
- #[derive(Clone, Debug, PartialEq)]
- struct D {
- d_value: usize,
- }
-
- #[derive(Clone, Debug, PartialEq)]
- struct E {
- e_value: usize,
- }
-
- #[derive(Clone, Debug, PartialEq)]
- struct F {
- f_value: usize,
- }
-
- impl EventValue for A {
- fn id() -> &'static str {
- "A"
- }
- }
-
- impl EventValue for B {
- fn id() -> &'static str {
- "B"
- }
- }
-
- impl EventValue for C {
- fn id() -> &'static str {
- "C"
- }
- }
-
- impl EventValue for D {
- fn id() -> &'static str {
- "D"
- }
- }
-
- impl EventValue for E {
- fn id() -> &'static str {
- "E"
- }
- }
-
- impl EventValue for F {
- fn id() -> &'static str {
- "F"
- }
- }
-
- impl EventValueTopic for C {
- type Topic = Topic;
- fn topic() -> Self::Topic {
- Topic::TopicC
- }
- }
-
- #[test]
- fn test_event_sys() {
- smol::block_on(async move {
- let event_sys = EventSys::<Topic>::new();
-
- let a_listener = event_sys.register::<A>(&Topic::TopicA).await;
- let b_listener = event_sys.register::<B>(&Topic::TopicB).await;
-
- event_sys
- .emit_by_topic(&Topic::TopicA, &A { a_value: 3 })
- .await;
- event_sys
- .emit_by_topic(&Topic::TopicB, &B { b_value: 5 })
- .await;
-
- let msg = a_listener.recv().await.unwrap();
- assert_eq!(msg, A { a_value: 3 });
-
- let msg = b_listener.recv().await.unwrap();
- assert_eq!(msg, B { b_value: 5 });
-
- // register the same event type to different topics
- let c_listener = event_sys.register::<C>(&Topic::TopicC).await;
- let d_listener = event_sys.register::<C>(&Topic::TopicD).await;
-
- event_sys.emit(&C { c_value: 10 }).await;
- let msg = c_listener.recv().await.unwrap();
- assert_eq!(msg, C { c_value: 10 });
-
- event_sys
- .emit_by_topic(&Topic::TopicD, &C { c_value: 10 })
- .await;
- let msg = d_listener.recv().await.unwrap();
- assert_eq!(msg, C { c_value: 10 });
-
- // register different event types to the same topic
- let e_listener = event_sys.register::<E>(&Topic::TopicE).await;
- let f_listener = event_sys.register::<F>(&Topic::TopicE).await;
-
- event_sys
- .emit_by_topic(&Topic::TopicE, &E { e_value: 5 })
- .await;
-
- let msg = e_listener.recv().await.unwrap();
- assert_eq!(msg, E { e_value: 5 });
-
- event_sys
- .emit_by_topic(&Topic::TopicE, &F { f_value: 5 })
- .await;
-
- let msg = f_listener.recv().await.unwrap();
- assert_eq!(msg, F { f_value: 5 });
- });
- }
-}
diff --git a/karyons_core/src/lib.rs b/karyons_core/src/lib.rs
deleted file mode 100644
index 83af888..0000000
--- a/karyons_core/src/lib.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-/// A set of helper tools and functions.
-pub mod utils;
-
-/// A module containing async utilities that work with the `smol` async runtime.
-pub mod async_utils;
-
-/// Represents Karyons's Core Error.
-pub mod error;
-
-/// [`EventSys`](./event/struct.EventSys.html) Implementation
-pub mod event;
-
-/// A simple publish-subscribe system.[`Read More`](./pubsub/struct.Publisher.html)
-pub mod pubsub;
-
-use error::Result;
-use smol::Executor as SmolEx;
-use std::sync::Arc;
-
-/// A wrapper for smol::Executor
-pub type Executor<'a> = Arc<SmolEx<'a>>;
diff --git a/karyons_core/src/pubsub.rs b/karyons_core/src/pubsub.rs
deleted file mode 100644
index 4cc0ab7..0000000
--- a/karyons_core/src/pubsub.rs
+++ /dev/null
@@ -1,115 +0,0 @@
-use std::{collections::HashMap, sync::Arc};
-
-use log::error;
-use smol::lock::Mutex;
-
-use crate::{utils::random_16, Result};
-
-pub type ArcPublisher<T> = Arc<Publisher<T>>;
-pub type SubscriptionID = u16;
-
-/// A simple publish-subscribe system.
-// # Example
-///
-/// ```
-/// use karyons_core::pubsub::{Publisher};
-///
-/// async {
-/// let publisher = Publisher::new();
-///
-/// let sub = publisher.subscribe().await;
-///
-/// publisher.notify(&String::from("MESSAGE")).await;
-///
-/// let msg = sub.recv().await;
-///
-/// // ....
-/// };
-///
-/// ```
-pub struct Publisher<T> {
- subs: Mutex<HashMap<SubscriptionID, smol::channel::Sender<T>>>,
-}
-
-impl<T: Clone> Publisher<T> {
- /// Creates a new Publisher
- pub fn new() -> ArcPublisher<T> {
- Arc::new(Self {
- subs: Mutex::new(HashMap::new()),
- })
- }
-
- /// Subscribe and return a Subscription
- pub async fn subscribe(self: &Arc<Self>) -> Subscription<T> {
- let mut subs = self.subs.lock().await;
-
- let chan = smol::channel::unbounded();
-
- let mut sub_id = random_16();
-
- // While the SubscriptionID already exists, generate a new one
- while subs.contains_key(&sub_id) {
- sub_id = random_16();
- }
-
- let sub = Subscription::new(sub_id, self.clone(), chan.1);
- subs.insert(sub_id, chan.0);
-
- sub
- }
-
- /// Unsubscribe from the Publisher
- pub async fn unsubscribe(self: &Arc<Self>, id: &SubscriptionID) {
- self.subs.lock().await.remove(id);
- }
-
- /// Notify all subscribers
- pub async fn notify(self: &Arc<Self>, value: &T) {
- let mut subs = self.subs.lock().await;
- let mut closed_subs = vec![];
-
- for (sub_id, sub) in subs.iter() {
- if let Err(err) = sub.send(value.clone()).await {
- error!("failed to notify {}: {}", sub_id, err);
- closed_subs.push(*sub_id);
- }
- }
-
- for sub_id in closed_subs.iter() {
- subs.remove(sub_id);
- }
- }
-}
-
-// Subscription
-pub struct Subscription<T> {
- id: SubscriptionID,
- recv_chan: smol::channel::Receiver<T>,
- publisher: ArcPublisher<T>,
-}
-
-impl<T: Clone> Subscription<T> {
- /// Creates a new Subscription
- pub fn new(
- id: SubscriptionID,
- publisher: ArcPublisher<T>,
- recv_chan: smol::channel::Receiver<T>,
- ) -> Subscription<T> {
- Self {
- id,
- recv_chan,
- publisher,
- }
- }
-
- /// Receive a message from the Publisher
- pub async fn recv(&self) -> Result<T> {
- let msg = self.recv_chan.recv().await?;
- Ok(msg)
- }
-
- /// Unsubscribe from the Publisher
- pub async fn unsubscribe(&self) {
- self.publisher.unsubscribe(&self.id).await;
- }
-}
diff --git a/karyons_core/src/utils/decode.rs b/karyons_core/src/utils/decode.rs
deleted file mode 100644
index a8a6522..0000000
--- a/karyons_core/src/utils/decode.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-use bincode::Decode;
-
-use crate::Result;
-
-/// Decodes a given type `T` from the given slice. returns the decoded value
-/// along with the number of bytes read.
-pub fn decode<T: Decode>(src: &[u8]) -> Result<(T, usize)> {
- let (result, bytes_read) = bincode::decode_from_slice(src, bincode::config::standard())?;
- Ok((result, bytes_read))
-}
diff --git a/karyons_core/src/utils/encode.rs b/karyons_core/src/utils/encode.rs
deleted file mode 100644
index 7d1061b..0000000
--- a/karyons_core/src/utils/encode.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-use bincode::Encode;
-
-use crate::Result;
-
-/// Encode the given type `T` into a `Vec<u8>`.
-pub fn encode<T: Encode>(msg: &T) -> Result<Vec<u8>> {
- let vec = bincode::encode_to_vec(msg, bincode::config::standard())?;
- Ok(vec)
-}
-
-/// Encode the given type `T` into the given slice..
-pub fn encode_into_slice<T: Encode>(msg: &T, dst: &mut [u8]) -> Result<()> {
- bincode::encode_into_slice(msg, dst, bincode::config::standard())?;
- Ok(())
-}
diff --git a/karyons_core/src/utils/mod.rs b/karyons_core/src/utils/mod.rs
deleted file mode 100644
index a3c3f50..0000000
--- a/karyons_core/src/utils/mod.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-mod decode;
-mod encode;
-mod path;
-
-pub use decode::decode;
-pub use encode::{encode, encode_into_slice};
-pub use path::{home_dir, tilde_expand};
-
-use rand::{rngs::OsRng, Rng};
-
-/// Generates and returns a random u32 using `rand::rngs::OsRng`.
-pub fn random_32() -> u32 {
- OsRng.gen()
-}
-
-/// Generates and returns a random u16 using `rand::rngs::OsRng`.
-pub fn random_16() -> u16 {
- OsRng.gen()
-}
diff --git a/karyons_core/src/utils/path.rs b/karyons_core/src/utils/path.rs
deleted file mode 100644
index 2cd900a..0000000
--- a/karyons_core/src/utils/path.rs
+++ /dev/null
@@ -1,39 +0,0 @@
-use std::path::PathBuf;
-
-use crate::{error::Error, Result};
-
-/// Returns the user's home directory as a `PathBuf`.
-#[allow(dead_code)]
-pub fn home_dir() -> Result<PathBuf> {
- dirs::home_dir().ok_or(Error::PathNotFound("Home dir not found"))
-}
-
-/// Expands a tilde (~) in a path and returns the expanded `PathBuf`.
-#[allow(dead_code)]
-pub fn tilde_expand(path: &str) -> Result<PathBuf> {
- match path {
- "~" => home_dir(),
- p if p.starts_with("~/") => Ok(home_dir()?.join(&path[2..])),
- _ => Ok(PathBuf::from(path)),
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn test_tilde_expand() {
- let path = "~/src";
- let expanded_path = dirs::home_dir().unwrap().join("src");
- assert_eq!(tilde_expand(path).unwrap(), expanded_path);
-
- let path = "~";
- let expanded_path = dirs::home_dir().unwrap();
- assert_eq!(tilde_expand(path).unwrap(), expanded_path);
-
- let path = "";
- let expanded_path = PathBuf::from("");
- assert_eq!(tilde_expand(path).unwrap(), expanded_path);
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 23:03:16 +0000