Don't wait for the heap lock if already taken

Author: killzoner

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.4] - 2025-08-20
+### Fixed
+- Don't wait for the heap lock if already taken
+
 ## [0.1.3] - 2025-08-18
 ### Fixed
 - Remove deadcode warning when all features are disabled

Cargo.lock

@@ -3,7 +3,7 @@ authors = ["killzoner"]
 edition = "2024"
 name = "pprof_hyper_server"
 resolver = "3"
-version = "0.1.3"
+version = "0.1.4"
 
 description = "A minimal pprof server implementation using hyper without runtime dependency"
 documentation = "https://docs.rs/pprof_hyper_server"

Cargo.toml

@@ -130,7 +130,7 @@ impl Task<'_> {
         match prof_ctl {
             None => Err(anyhow::anyhow!("heap profiling not activated")),
             Some(prof_ctl) => {
-                let mut prof_ctl = prof_ctl.lock().await;
+                let mut prof_ctl = prof_ctl.try_lock()?;
 
                 if !prof_ctl.activated() {
                     return Err(anyhow::anyhow!("heap profiling not activated"));