From 4045c30021130aa121b5f599b49746ac2e1ecce8 Mon Sep 17 00:00:00 2001
From: ADAM David Alan Martin <adam@pyp-e.io>
Date: Fri, 24 May 2024 13:28:16 -0400
Subject: [PATCH] Switch the dead drop to use a circular buffer.

---
 Atomic/DeadDrop.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Atomic/DeadDrop.h b/Atomic/DeadDrop.h
index da06d6c..679a9f9 100644
--- a/Atomic/DeadDrop.h
+++ b/Atomic/DeadDrop.h
@@ -8,6 +8,8 @@ static_assert( __cplusplus > 2020'99 );
 
 #include <queue>
 
+#include <boost/circular_buffer.hpp>
+
 #include <Alepha/Thread.h>
 
 namespace Alepha::Hydrogen::Atomic  ::detail::  DeadDrop_m
@@ -33,7 +35,7 @@ namespace Alepha::Hydrogen::Atomic  ::detail::  DeadDrop_m
 					Item original;
 
 					Item *active= &original;
-					std::queue< Item * > next;
+					boost::circular_buffer< Item * > next{ 2 };
 
 					Box *companion= nullptr;
 
@@ -56,7 +58,7 @@ namespace Alepha::Hydrogen::Atomic  ::detail::  DeadDrop_m
 							std::unique_lock lock{ *access };
 							ready.wait( lock, [&]{ return not next.empty(); } );
 							active= next.front();
-							next.pop();
+							next.pop_front();
 						}
 						assert( active );
 						return *active;
@@ -66,7 +68,7 @@ namespace Alepha::Hydrogen::Atomic  ::detail::  DeadDrop_m
 					releaseBox()
 					{
 						std::unique_lock lock{ *access };
-						companion->next.push( active );
+						companion->next.push_back( active );
 						active= nullptr;
 						companion->ready.notify_one();
 					}