refactor: remove unneeded comments

src/backend/load_balance.rs

@@ -12,12 +12,8 @@ pub(super) mod load_balance_options {
   pub const STICKY_ROUND_ROBIN: &str = "sticky";
 }
 
-//
-//   /// Counter for load balancing
-//   pub cnt: UpstreamCount,
-
-// TODO: カウンタの移動
 #[derive(Debug, Clone, Builder)]
+/// Counter object as a pointer to the current serving upstream destination
 pub struct LbRoundRobinCount {
   #[builder(default)]
   cnt: Arc<AtomicUsize>,
@@ -52,12 +48,12 @@ impl LbRoundRobinCount {
 pub enum LoadBalance {
   /// Fix to the first upstream. Use if only one upstream destination is specified
   FixToFirst,
-  /// Simple round robin without session persistance
-  RoundRobin(LbRoundRobinCount), // TODO: カウンタはここにいれる。randomとかには不要なので
   /// Randomly chose one upstream server
   Random,
+  /// Simple round robin without session persistance
+  RoundRobin(LbRoundRobinCount),
   /// Round robin with session persistance using cookie
-  StickyRoundRobin,
+  StickyRoundRobin(LbRoundRobinCount),
 }
 impl Default for LoadBalance {
   fn default() -> Self {

src/backend/upstream.rs

@@ -96,14 +96,19 @@ impl UpstreamGroupBuilder {
     let lb = if let Some(x) = v {
       match x.as_str() {
         lb_opts::FIX_TO_FIRST => LoadBalance::FixToFirst,
+        lb_opts::RANDOM => LoadBalance::Random,
         lb_opts::ROUND_ROBIN => LoadBalance::RoundRobin(
           LbRoundRobinCountBuilder::default()
             .max_val(upstream_num)
             .build()
             .unwrap(),
         ),
-        lb_opts::RANDOM => LoadBalance::Random,
+        lb_opts::STICKY_ROUND_ROBIN => LoadBalance::StickyRoundRobin(
-        lb_opts::STICKY_ROUND_ROBIN => LoadBalance::StickyRoundRobin,
+          LbRoundRobinCountBuilder::default()
+            .max_val(upstream_num)
+            .build()
+            .unwrap(),
+        ),
         _ => {
           error!("Specified load balancing option is invalid.");
           LoadBalance::default()
@@ -143,7 +148,7 @@ impl UpstreamGroup {
         let max = self.upstream.len() - 1;
         self.upstream.get(rng.gen_range(0..max))
       }
-      LoadBalance::StickyRoundRobin => todo!(), // TODO: TODO:
+      LoadBalance::StickyRoundRobin(_cnt) => todo!(), // TODO: TODO:
     }
   }
 }