From eb4e601eafaea28f99e5f76a044c8240217d8735 Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@icinga.com>
Date: Wed, 7 Feb 2024 10:59:49 +0100
Subject: [PATCH] Remove unused IoBoundWorkSlot

---
 lib/base/io-engine.cpp | 23 -----------------------
 lib/base/io-engine.hpp | 20 --------------------
 2 files changed, 43 deletions(-)

diff --git a/lib/base/io-engine.cpp b/lib/base/io-engine.cpp
index 0792be5cc..7928ab19d 100644
--- a/lib/base/io-engine.cpp
+++ b/lib/base/io-engine.cpp
@@ -50,29 +50,6 @@ void CpuBoundWork::Done()
 	}
 }
 
-IoBoundWorkSlot::IoBoundWorkSlot(boost::asio::yield_context yc)
-	: yc(yc)
-{
-	IoEngine::Get().m_CpuBoundSemaphore.fetch_add(1);
-}
-
-IoBoundWorkSlot::~IoBoundWorkSlot()
-{
-	auto& ioEngine (IoEngine::Get());
-
-	for (;;) {
-		auto availableSlots (ioEngine.m_CpuBoundSemaphore.fetch_sub(1));
-
-		if (availableSlots < 1) {
-			ioEngine.m_CpuBoundSemaphore.fetch_add(1);
-			IoEngine::YieldCurrentCoroutine(yc);
-			continue;
-		}
-
-		break;
-	}
-}
-
 LazyInit<std::unique_ptr<IoEngine>> IoEngine::m_Instance ([]() { return std::unique_ptr<IoEngine>(new IoEngine()); });
 
 IoEngine& IoEngine::Get()
diff --git a/lib/base/io-engine.hpp b/lib/base/io-engine.hpp
index 0883d7810..bc842912b 100644
--- a/lib/base/io-engine.hpp
+++ b/lib/base/io-engine.hpp
@@ -50,25 +50,6 @@ private:
 	bool m_Done;
 };
 
-/**
- * Scope break for CPU-bound work done in an I/O thread
- *
- * @ingroup base
- */
-class IoBoundWorkSlot
-{
-public:
-	IoBoundWorkSlot(boost::asio::yield_context yc);
-	IoBoundWorkSlot(const IoBoundWorkSlot&) = delete;
-	IoBoundWorkSlot(IoBoundWorkSlot&&) = delete;
-	IoBoundWorkSlot& operator=(const IoBoundWorkSlot&) = delete;
-	IoBoundWorkSlot& operator=(IoBoundWorkSlot&&) = delete;
-	~IoBoundWorkSlot();
-
-private:
-	boost::asio::yield_context yc;
-};
-
 /**
  * Async I/O engine
  *
@@ -77,7 +58,6 @@ private:
 class IoEngine
 {
 	friend CpuBoundWork;
-	friend IoBoundWorkSlot;
 
 public:
 	IoEngine(const IoEngine&) = delete;