Merge pull request #59 from SRVng/gh-59-default-worker

Default `num_workers` to `num_cpus`

src/processor.rs

@@ -29,7 +29,7 @@ pub struct Processor {
     config: ProcessorConfig,
 }
 
-#[derive(Default, Clone)]
+#[derive(Clone)]
 #[non_exhaustive]
 pub struct ProcessorConfig {
     /// The number of Sidekiq workers that can run at the same time. Adjust as needed based on
@@ -102,6 +102,16 @@ impl ProcessorConfig {
     }
 }
 
+impl Default for ProcessorConfig {
+    fn default() -> Self {
+        Self {
+            num_workers: num_cpus::get(),
+            balance_strategy: Default::default(),
+            queue_configs: Default::default(),
+        }
+    }
+}
+
 impl QueueConfig {
     #[must_use]
     pub fn num_workers(mut self, num_workers: usize) -> Self {