Then chaining still kinda broken

src/Engine/Asset/MeshLoader.cpp

@@ -229,7 +229,7 @@ void MeshLoader::loadTextures(const aiScene* scene, const std::filesystem::path&
         AssetRegistry::importFile(texPngPath.string());
     }
 }
-Job MeshLoader::import(std::filesystem::path path, PMeshAsset meshAsset)
+void MeshLoader::import(std::filesystem::path path, PMeshAsset meshAsset)
 {
     std::cout << "Starting to import "<<path << std::endl;
     meshAsset->setStatus(Asset::Status::Loading);
@@ -264,5 +264,4 @@ Job MeshLoader::import(std::filesystem::path path, PMeshAsset meshAsset)
     meshAsset->setStatus(Asset::Status::Ready);
     meshAsset->save();
     std::cout << "Finished loading " << path << std::endl;
-    co_return;
 }

src/Engine/Asset/MeshLoader.h

@@ -26,7 +26,7 @@ private:
     void loadGlobalMeshes(const aiScene* scene, Array<PMesh>& globalMeshes, const Array<PMaterialAsset>& materials, Gfx::PGraphics graphics);
     void convertAssimpARGB(unsigned char* dst, aiTexel* src, uint32 numPixels);
 
-    Job import(std::filesystem::path path, PMeshAsset meshAsset);
+    void import(std::filesystem::path path, PMeshAsset meshAsset);
     List<std::future<void>> futures;
     Gfx::PGraphics graphics;
 };

src/Engine/Graphics/RenderPass/BasePass.cpp

@@ -63,6 +63,7 @@ Job BasePassMeshProcessor::processMeshBatch(
             collection->fragmentShader,
             false);
     }
+    std::unique_lock lock(commandLock);
     renderCommands.add(renderCommand);
     co_return;
 }
@@ -160,6 +161,7 @@ MainJob BasePass::render()
     co_await Job::all(jobs);
     graphics->executeCommands(processor->getRenderCommands());
     graphics->endRenderPass();
+    co_return;
 }
 
 MainJob BasePass::endFrame() 

src/Engine/Graphics/RenderPass/DepthPrepass.cpp

@@ -27,6 +27,7 @@ Job DepthPrepassMeshProcessor::processMeshBatch(
     Array<Gfx::PDescriptorSet> descriptorSets,
     int32 /*staticMeshId*/) 
 {
+    std::cout << "Depth job started" << std::endl;
     PMaterialAsset material = batch.material;
     //const Gfx::MaterialShadingModel shadingModel = material->getShadingModel();
 
@@ -60,7 +61,9 @@ Job DepthPrepassMeshProcessor::processMeshBatch(
             collection->fragmentShader,
             true);
     }
+    std::unique_lock lock(commandLock);
     renderCommands.add(renderCommand);
+    std::cout << "Finished depth job" << std::endl;
     co_return;
 }
 
@@ -127,8 +130,10 @@ MainJob DepthPrepass::render()
         jobs.add(processor->processMeshBatch(meshBatch, renderPass, depthPrepassLayout, primitiveLayout, descriptorSets));
     }
     co_await Job::all(jobs);
+    std::cout << "Finished waiting depth jobs " << std::endl;
     graphics->executeCommands(processor->getRenderCommands());
     graphics->endRenderPass();
+    co_return;
 }
 
 MainJob DepthPrepass::endFrame() 

src/Engine/Graphics/RenderPass/DepthPrepass.h

@@ -20,9 +20,7 @@ public:
         int32 staticMeshId = -1) override;
 
 private:
-    //Array<Gfx::PDescriptorSet> cachedPrimitiveSets;
     Gfx::PViewport target;
-    //uint32 cachedPrimitiveIndex;
 };
 DEFINE_REF(DepthPrepassMeshProcessor)
 DECLARE_REF(CameraActor)

src/Engine/Graphics/RenderPass/MeshProcessor.h

@@ -38,6 +38,7 @@ protected:
         Gfx::PGeometryShader geometryShader,
         Gfx::PFragmentShader fragmentShader,
         bool positionOnly);
+    std::mutex commandLock;
     Array<Gfx::PRenderCommand> renderCommands;
 };
 } // namespace Seele

src/Engine/Graphics/Vulkan/VulkanCommandBuffer.cpp

@@ -74,6 +74,7 @@ void CmdBuffer::beginRenderPass(PRenderPass newRenderPass, PFramebuffer newFrame
     beginInfo.framebuffer = framebuffer->getHandle();
     vkCmdBeginRenderPass(handle, &beginInfo, renderPass->getSubpassContents());
     state = State::RenderPassActive;
+    std::cout << "Beginning renderPass" << std::endl;
 }
 
 void CmdBuffer::endRenderPass()
@@ -81,6 +82,7 @@ void CmdBuffer::endRenderPass()
     std::unique_lock lock(handleLock);
     vkCmdEndRenderPass(handle);
     state = State::InsideBegin;
+    std::cout << "Ending renderPass" << std::endl;
 }
 
 void CmdBuffer::executeCommands(const Array<Gfx::PRenderCommand>& commands)
@@ -88,7 +90,6 @@ void CmdBuffer::executeCommands(const Array<Gfx::PRenderCommand>& commands)
     assert(state == State::RenderPassActive);
     if(commands.size() == 0)
     {
-        std::cout << "No commands!" << std::endl;
         return;
     }
     std::unique_lock lock(handleLock);

src/Engine/ThreadPool.cpp

@@ -54,35 +54,42 @@ ThreadPool::~ThreadPool()
 void ThreadPool::enqueueWaiting(Event &event, Promise* job)
 {
     assert(!job->done());
+    assert(job->schedulable);
     if(event == nullptr)
     {
         std::unique_lock lock(jobQueueLock);
+        //std::cout << "Queueing job " << job->finishedEvent.name << std::endl;
         jobQueue.add(job);
         jobQueueCV.notify_one();
     }
     else
     {
         std::unique_lock lock(waitingLock);
+        //std::cout << "Job " << job->finishedEvent.name << " waiting on event " << event.name << std::endl;
         waitingJobs[event].add(job);
     }
 }
 void ThreadPool::enqueueWaiting(Event &event, MainPromise* job)
 {
     assert(!job->done());
+    assert(job->schedulable);
     if(event == nullptr)
     {
         std::unique_lock lock(mainJobLock);
+        //std::cout << "Queueing job " << job->finishedEvent.name << std::endl;
         mainJobs.add(job);
         mainJobCV.notify_one();
     }
     else
     {
         std::unique_lock lock(waitingMainLock);
+        //std::cout << job->finishedEvent.name << " waiting on event " << event.name << std::endl;
         waitingMainJobs[event].add(job);
     }
 }
 void ThreadPool::notify(Event &event)
 {
+    //std::cout << "Event " << event.name << " raised" << std::endl;
     {
         std::unique_lock lock(jobQueueLock);
         std::unique_lock lock2(waitingLock);
@@ -90,11 +97,11 @@ void ThreadPool::notify(Event &event)
         for (auto &job : jobs)
         {
             //assert(job.id != -1ull);
-            //std::cout << "Waking up job " << job.id << std::endl;
+            //std::cout << "Waking up " << job->finishedEvent.name << std::endl;
             jobQueue.add(job);
             jobQueueCV.notify_one();
         }
-        jobs.clear();
+        waitingJobs.erase(event);
     }
     {
         std::unique_lock lock(mainJobLock);
@@ -103,11 +110,11 @@ void ThreadPool::notify(Event &event)
         for (auto &job : jobs)
         {
             //assert(job.id != -1ull);
-            //std::cout << "Waking up main job " << job.id << std::endl;
+            //std::cout << "Waking up main " << job->finishedEvent.name << std::endl;
             mainJobs.add(job);
             mainJobCV.notify_one();
         }
-        jobs.clear();
+        waitingMainJobs.erase(event);
     }
 }
 void ThreadPool::threadLoop(const bool mainThread)

src/Engine/ThreadPool.h

@@ -74,6 +74,7 @@ struct JobPromiseBase
         if(handle && !handle.done())
         {
             handle.resume();
+            schedulable = true;
         }
     }
     void setContinuation(JobPromiseBase* cont)
@@ -99,16 +100,22 @@ struct JobPromiseBase
     }
     void enqueue(Event& event)
     {
+        if(!handle || handle.done() || !schedulable)
+        {
+            return;
+        }
         getGlobalThreadPool().enqueueWaiting(event, this);
+        schedulable = false;
     }
     void schedule()
     {
         std::unique_lock lock(promiseLock);
-        if(!handle || handle.done())
+        if(!handle || handle.done() || !schedulable)
         {
             return;
         }
         getGlobalThreadPool().enqueueWaiting(precondition, this);
+        schedulable = false;
     }
 
     std::mutex promiseLock;
@@ -117,6 +124,7 @@ struct JobPromiseBase
     uint64 id;
     Event finishedEvent;
     Event precondition = nullptr;
+    bool schedulable = true;
 };
 
 template<bool MainJob = false>
@@ -145,14 +153,14 @@ public:
         promise->resume();
     }
     template<std::invocable Callable>
-    inline JobBase then(Callable callable)
+    inline JobBase&& then(Callable callable)
     {
         return then(callable());
     }
-    JobBase then(JobBase&& continuation)
+    JobBase&& then(JobBase&& continuation)
     {
         promise->setContinuation(continuation.promise);
-        return continuation;
+        return std::move(continuation);
     }
     bool done()
     {
@@ -168,7 +176,6 @@ public:
     }
     Event operator co_await()
     {
-        promise->resume();
         return promise->finishedEvent;
     }
     static JobBase all() = delete;
@@ -230,10 +237,10 @@ private:
     std::mutex jobQueueLock;
     std::condition_variable jobQueueCV;
     
-    Map<Event, List<MainPromise*>> waitingMainJobs;
+    std::map<Event, List<MainPromise*>> waitingMainJobs;
     std::mutex waitingMainLock;
 
-    Map<Event, List<Promise*>> waitingJobs;
+    std::map<Event, List<Promise*>> waitingJobs;
     std::mutex waitingLock;
 };
 
@@ -246,18 +253,6 @@ inline JobBase<MainJob> JobPromiseBase<MainJob>::get_return_object() noexcept
 template<bool MainJob>
 inline auto JobPromiseBase<MainJob>::initial_suspend() noexcept
 {
-    /*struct JobAwaitable
-    {
-        constexpr bool await_ready() { return false; }
-        constexpr void await_suspend(std::coroutine_handle<JobPromiseBase<MainJob>> h)
-        {
-            getGlobalThreadPool().addJob(std::move(JobBase<MainJob>(h, id, event)));
-        }
-        constexpr void await_resume() {}
-        uint64 id;
-        Event& event;
-    };
-    return JobAwaitable{id, finishedEvent};*/
     return std::suspend_always{};
 }
 template<bool MainJob>

src/Engine/Window/InspectorView.cpp

@@ -40,14 +40,11 @@ void InspectorView::prepareRender()
 
 MainJob InspectorView::render() 
 {
-    return uiPass.beginFrame()
+    co_await uiPass.beginFrame();
-        .then(uiPass.render())
+    co_await uiPass.render();
-        .then(uiPass.endFrame())
+    co_await uiPass.endFrame();
-        .then([=]() -> MainJob
+    renderFinishedEvent.raise();
-        {
+    co_return;
-            renderFinishedEvent.raise();
-            co_return;
-        });
 }
 
 void InspectorView::keyCallback(KeyCode, InputAction, KeyModifier) 

src/Engine/Window/SceneView.cpp

@@ -84,20 +84,17 @@ void SceneView::prepareRender()
 
 MainJob SceneView::render() 
 {
-    return depthPrepass.beginFrame()
+    co_await depthPrepass.beginFrame();
-        .then(lightCullingPass.beginFrame())
+    co_await lightCullingPass.beginFrame();
-        .then(basePass.beginFrame())
+    co_await basePass.beginFrame();
-        .then(depthPrepass.render())
+    co_await depthPrepass.render();
-        .then(lightCullingPass.render())
+    co_await lightCullingPass.render();
-        .then(basePass.render())
+    co_await basePass.render();
-        .then(depthPrepass.endFrame())
+    co_await depthPrepass.endFrame();
-        .then(lightCullingPass.endFrame())
+    co_await lightCullingPass.endFrame();
-        .then(basePass.endFrame())
+    co_await basePass.endFrame();
-        .then([&](Event& event) -> MainJob
+    renderFinishedEvent.raise();
-        {
+    co_return;
-            event.raise();
-            co_return;
-        }(renderFinishedEvent));
 }
 
 void SceneView::keyCallback(KeyCode code, InputAction action, KeyModifier)

test/Engine/CMakeLists.txt

@@ -1,8 +1,10 @@
 target_sources(Seele_unit_tests
 	PRIVATE
 		../../src/Engine/MinimalEngine.cpp
+		../../src/Engine/ThreadPool.cpp
 		EngineTest.h
-		EngineTest.cpp)
+		EngineTest.cpp
+		ThreadPool.cpp)
 target_include_directories(Seele_unit_tests PUBLIC ./)
 add_subdirectory(Containers/)
 add_subdirectory(Graphics/)

test/Engine/ThreadPool.cpp

@@ -0,0 +1,74 @@
+#include "EngineTest.h"
+#include "ThreadPool.h"
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_SUITE(ThreadPool)
+
+uint64 basicJobState = 0;
+
+Job basicThenFirst()
+{
+    basicJobState = 10;
+    co_return;
+}
+Job basicThenSecond()
+{
+    BOOST_REQUIRE_EQUAL(basicJobState, 10);
+    basicJobState = 20;
+    co_return;
+}
+Job basicThenThird()
+{
+    BOOST_REQUIRE_EQUAL(basicJobState, 20);
+    co_return;
+}
+
+BOOST_AUTO_TEST_CASE(basic_then)
+{
+    basicThenFirst()
+        .then(basicThenSecond())
+        .then(basicThenThird());
+}
+
+uint64 basicAllState1 = 0;
+uint64 basicAllState2 = 0;
+Job basicAllFirst()
+{
+    basicAllState1 = 10;
+    co_return;
+}
+Job basicAllSecond()
+{
+    basicAllState2 = 10;
+    co_return;
+}
+Job basicAllThen()
+{
+    BOOST_REQUIRE_EQUAL(basicAllState1, 10);
+    BOOST_REQUIRE_EQUAL(basicAllState2, 10);
+    co_return;
+}
+
+BOOST_AUTO_TEST_CASE(basic_all)
+{
+    Job::all(basicAllFirst(), basicAllSecond()).then(basicAllThen());
+}
+
+uint64 basicCallable = 0;
+
+Job basicCallableFunc()
+{
+    basicCallable = 10;
+    co_return;
+}
+
+BOOST_AUTO_TEST_CASE(basic_callable)
+{
+    basicCallableFunc()
+        .then([=]() -> Job{
+            BOOST_REQUIRE_EQUAL(basicCallable, 10);
+            co_return;
+        });
+}
+
+BOOST_AUTO_TEST_SUITE_END()