From 48e5acf294c2f035bda985c1f3441df23b5fad52 Mon Sep 17 00:00:00 2001
From: Emil Fresk <emil.fresk@gmail.com>
Date: Sun, 19 Mar 2023 22:15:36 +0100
Subject: Start async tasks at lowest priority

---
 rtic-macros/src/syntax/parse.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'rtic-macros')

diff --git a/rtic-macros/src/syntax/parse.rs b/rtic-macros/src/syntax/parse.rs
index 72eeeaf..823bd82 100644
--- a/rtic-macros/src/syntax/parse.rs
+++ b/rtic-macros/src/syntax/parse.rs
@@ -289,11 +289,13 @@ fn task_args(tokens: TokenStream2) -> parse::Result<Either<HardwareTaskArgs, Sof
             // Handle comma: ,
             let _: Token![,] = content.parse()?;
         }
-        let priority = priority.unwrap_or(1);
         let shared_resources = shared_resources.unwrap_or_default();
         let local_resources = local_resources.unwrap_or_default();
 
         Ok(if let Some(binds) = binds {
+            // Hardware tasks can't run at anything lower than 1
+            let priority = priority.unwrap_or(1);
+
             if priority == 0 {
                 return Err(parse::Error::new(
                     prio_span.unwrap(),
@@ -308,6 +310,9 @@ fn task_args(tokens: TokenStream2) -> parse::Result<Either<HardwareTaskArgs, Sof
                 local_resources,
             })
         } else {
+            // Software tasks start at idle priority
+            let priority = priority.unwrap_or(0);
+
             Either::Right(SoftwareTaskArgs {
                 priority,
                 shared_resources,
-- 
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