From bbb58ab76787d090d32ed56964bfcf194b8f6a3d Mon Sep 17 00:00:00 2001
From: Brandon Elam Barker <brandon.barker@gmail.com>
Date: Mon, 5 Feb 2024 22:48:11 -0500
Subject: [PATCH] Clone for device (#830)

* Clone for Device and Alsa Device

* fix cloning around PCM

* add Clone for oboe Device

* add Clone for ASIO Device
---
 src/host/alsa/enumerate.rs | 7 ++++---
 src/host/alsa/mod.rs       | 3 ++-
 src/host/asio/device.rs    | 1 +
 src/host/oboe/mod.rs       | 1 +
 src/platform/mod.rs        | 2 ++
 5 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/host/alsa/enumerate.rs b/src/host/alsa/enumerate.rs
index 64c1c5e38..0aa7fb0d7 100644
--- a/src/host/alsa/enumerate.rs
+++ b/src/host/alsa/enumerate.rs
@@ -2,6 +2,7 @@ use super::alsa;
 use super::parking_lot::Mutex;
 use super::{Device, DeviceHandles};
 use crate::{BackendSpecificError, DevicesError};
+use std::sync::Arc;
 
 /// ALSA's implementation for `Devices`.
 pub struct Devices {
@@ -37,7 +38,7 @@ impl Iterator for Devices {
                     if let Ok(handles) = DeviceHandles::open(&name) {
                         return Some(Device {
                             name,
-                            handles: Mutex::new(handles),
+                            handles: Arc::new(Mutex::new(handles)),
                         });
                     }
                 }
@@ -50,7 +51,7 @@ impl Iterator for Devices {
 pub fn default_input_device() -> Option<Device> {
     Some(Device {
         name: "default".to_owned(),
-        handles: Mutex::new(Default::default()),
+        handles: Arc::new(Mutex::new(Default::default())),
     })
 }
 
@@ -58,7 +59,7 @@ pub fn default_input_device() -> Option<Device> {
 pub fn default_output_device() -> Option<Device> {
     Some(Device {
         name: "default".to_owned(),
-        handles: Mutex::new(Default::default()),
+        handles: Arc::new(Mutex::new(Default::default())),
     })
 }
 
diff --git a/src/host/alsa/mod.rs b/src/host/alsa/mod.rs
index 830ef86f3..137ae2b4a 100644
--- a/src/host/alsa/mod.rs
+++ b/src/host/alsa/mod.rs
@@ -236,9 +236,10 @@ impl DeviceHandles {
     }
 }
 
+#[derive(Clone)]
 pub struct Device {
     name: String,
-    handles: Mutex<DeviceHandles>,
+    handles: Arc<Mutex<DeviceHandles>>,
 }
 
 impl Device {
diff --git a/src/host/asio/device.rs b/src/host/asio/device.rs
index f48163504..b1532258d 100644
--- a/src/host/asio/device.rs
+++ b/src/host/asio/device.rs
@@ -18,6 +18,7 @@ use std::hash::{Hash, Hasher};
 use std::sync::Arc;
 
 /// A ASIO Device
+#[derive(Clone)]
 pub struct Device {
     /// The driver represented by this device.
     pub driver: Arc<sys::Driver>,
diff --git a/src/host/oboe/mod.rs b/src/host/oboe/mod.rs
index 788c05476..e2acb5208 100644
--- a/src/host/oboe/mod.rs
+++ b/src/host/oboe/mod.rs
@@ -37,6 +37,7 @@ const SAMPLE_RATES: [i32; 13] = [
 ];
 
 pub struct Host;
+#[derive(Clone)]
 pub struct Device(Option<oboe::AudioDeviceInfo>);
 pub enum Stream {
     Input(Box<RefCell<dyn AudioInputStream>>),
diff --git a/src/platform/mod.rs b/src/platform/mod.rs
index 1446a41f8..4cb4d5a29 100644
--- a/src/platform/mod.rs
+++ b/src/platform/mod.rs
@@ -55,6 +55,7 @@ macro_rules! impl_platform_host {
 
         /// The `Device` implementation associated with the platform's dynamically dispatched
         /// [`Host`] type.
+        #[derive(Clone)]
         pub struct Device(DeviceInner);
 
         /// The `Devices` iterator associated with the platform's dynamically dispatched [`Host`]
@@ -89,6 +90,7 @@ macro_rules! impl_platform_host {
         }
 
         /// Contains a platform specific [`Device`] implementation.
+        #[derive(Clone)]
         pub enum DeviceInner {
             $(
                 $(#[cfg($feat)])?