From ab9aae28bf5daa5fa7105bb4ef41b6d0b3c9cdc1 Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Sun, 8 Mar 2020 22:39:41 -0400
Subject: General: Initial Setup for Single Core.

---
 src/core/cpu_manager.h | 30 ++++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

(limited to 'src/core/cpu_manager.h')

diff --git a/src/core/cpu_manager.h b/src/core/cpu_manager.h
index e83ab20f9..1e81481ec 100644
--- a/src/core/cpu_manager.h
+++ b/src/core/cpu_manager.h
@@ -30,6 +30,10 @@ public:
     CpuManager& operator=(const CpuManager&) = delete;
     CpuManager& operator=(CpuManager&&) = delete;
 
+    /// Sets if emulation is multicore or single core, must be set before Initialize
+    void SetMulticore(bool is_multicore) {
+        this->is_multicore = is_multicore;
+    }
     void Initialize();
     void Shutdown();
 
@@ -40,21 +44,34 @@ public:
     std::function<void(void*)> GetSuspendThreadStartFunc();
     void* GetStartFuncParamater();
 
+    std::size_t CurrentCore() const {
+        return current_core;
+    }
+
 private:
     static void GuestThreadFunction(void* cpu_manager);
     static void GuestRewindFunction(void* cpu_manager);
     static void IdleThreadFunction(void* cpu_manager);
     static void SuspendThreadFunction(void* cpu_manager);
 
-    void RunGuestThread();
-    void RunGuestLoop();
-    void RunIdleThread();
-    void RunSuspendThread();
+    void MultiCoreRunGuestThread();
+    void MultiCoreRunGuestLoop();
+    void MultiCoreRunIdleThread();
+    void MultiCoreRunSuspendThread();
+    void MultiCorePause(bool paused);
+
+    void SingleCoreRunGuestThread();
+    void SingleCoreRunGuestLoop();
+    void SingleCoreRunIdleThread();
+    void SingleCoreRunSuspendThread();
+    void SingleCorePause(bool paused);
 
     static void ThreadStart(CpuManager& cpu_manager, std::size_t core);
 
     void RunThread(std::size_t core);
 
+    void PreemptSingleCore();
+
     struct CoreData {
         std::shared_ptr<Common::Fiber> host_context;
         std::unique_ptr<Common::Event> enter_barrier;
@@ -70,6 +87,11 @@ private:
 
     std::array<CoreData, Core::Hardware::NUM_CPU_CORES> core_data{};
 
+    bool is_multicore{};
+    std::size_t current_core{};
+    std::size_t preemption_count{};
+    static constexpr std::size_t max_cycle_runs = 5;
+
     System& system;
 };
 
-- 
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