[pbs-devel] [PATCH proxmox 4/9] broadcast_future: accommodate to edition 2024 changes to RPIT

[Maximiliano Sandoval]

Prevents the following error:

```
error[E0597]: `inner` does not live long enough
   --> proxmox-async/src/broadcast_future.rs:109:24
    |
107 |         inner: Arc<Mutex<BroadCastFutureBinding<T>>>,
    |         ----- binding `inner` declared here
108 |     ) -> impl Future<Output = Result<T, Error>> {
109 |         let mut data = inner.lock().unwrap();
    |                        ^^^^^ borrowed value does not live long enough
...
121 |         data.broadcast.listen()
    |         ----------------------- argument requires that `inner` is borrowed for `'static`
122 |     }
    |     - `inner` dropped here while still borrowed

error[E0597]: `data` does not live long enough
   --> proxmox-async/src/broadcast_future.rs:121:9
    |
109 |         let mut data = inner.lock().unwrap();
    |             -------- binding `data` declared here
...
121 |         data.broadcast.listen()
    |         ^^^^-------------------
    |         |
    |         borrowed value does not live long enough
    |         argument requires that `data` is borrowed for `'static`
122 |     }
    |     - `data` dropped here while still borrowed
```

The use<...> pattern was introduced in rust 1.82.

Signed-off-by: Maximiliano Sandoval <m.sandoval at proxmox.com>
---
 Cargo.toml                            | 2 +-
 proxmox-async/src/broadcast_future.rs | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 4d3f633e..3d758e92 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -62,7 +62,7 @@ license = "AGPL-3"
 repository = "https://git.proxmox.com/?p=proxmox.git"
 homepage = "https://proxmox.com"
 exclude = [ "debian" ]
-rust-version = "1.80"
+rust-version = "1.82"
 
 [workspace.dependencies]
 # any features enabled here are enabled on all members using 'workspace = true'!
diff --git a/proxmox-async/src/broadcast_future.rs b/proxmox-async/src/broadcast_future.rs
index 838204d3..62982e13 100644
--- a/proxmox-async/src/broadcast_future.rs
+++ b/proxmox-async/src/broadcast_future.rs
@@ -43,7 +43,7 @@ impl<T: Clone> BroadcastData<T> {
         }
     }
 
-    pub fn listen(&mut self) -> impl Future<Output = Result<T, Error>> {
+    pub fn listen(&mut self) -> impl Future<Output = Result<T, Error>> + use<T> {
         use futures::future::{ok, Either};
 
         match &self.result {
@@ -105,7 +105,7 @@ impl<T: Clone + Send + 'static> BroadcastFuture<T> {
 
     fn spawn(
         inner: Arc<Mutex<BroadCastFutureBinding<T>>>,
-    ) -> impl Future<Output = Result<T, Error>> {
+    ) -> impl Future<Output = Result<T, Error>> + use<T> {
         let mut data = inner.lock().unwrap();
 
         if let Some(source) = data.future.take() {
@@ -122,7 +122,7 @@ impl<T: Clone + Send + 'static> BroadcastFuture<T> {
     }
 
     /// Register a listener
-    pub fn listen(&self) -> impl Future<Output = Result<T, Error>> {
+    pub fn listen(&self) -> impl Future<Output = Result<T, Error>> + use<T> {
         let inner2 = self.inner.clone();
         async move { Self::spawn(inner2).await }
     }
-- 
2.39.5