From 18dcb0934217628711c5b1d22fd6d7635e683e3f Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Tue, 25 Feb 2020 12:28:55 -0400
Subject: HostTiming: Pause the hardware clock on pause.

---
 src/core/core.cpp        | 2 +-
 src/core/core_timing.cpp | 6 ++++++
 src/core/core_timing.h   | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/core')

diff --git a/src/core/core.cpp b/src/core/core.cpp
index e8936b09d..1d6179a80 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -137,8 +137,8 @@ struct System::Impl {
     ResultStatus Pause() {
         status = ResultStatus::Success;
 
-        kernel.Suspend(true);
         core_timing.SyncPause(true);
+        kernel.Suspend(true);
         cpu_manager.Pause(true);
 
         return status;
diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp
index cc32a853b..5a7abcfca 100644
--- a/src/core/core_timing.cpp
+++ b/src/core/core_timing.cpp
@@ -77,6 +77,9 @@ void CoreTiming::SyncPause(bool is_paused) {
         return;
     }
     Pause(is_paused);
+    if (!is_paused) {
+        pause_event.Set();
+    }
     event.Set();
     while (paused_set != is_paused)
         ;
@@ -197,6 +200,9 @@ void CoreTiming::ThreadLoop() {
             wait_set = false;
         }
         paused_set = true;
+        clock->Pause(true);
+        pause_event.Wait();
+        clock->Pause(false);
     }
 }
 
diff --git a/src/core/core_timing.h b/src/core/core_timing.h
index 707c8ef0c..c70b605c8 100644
--- a/src/core/core_timing.h
+++ b/src/core/core_timing.h
@@ -136,6 +136,7 @@ private:
 
     std::shared_ptr<EventType> ev_lost;
     Common::Event event{};
+    Common::Event pause_event{};
     Common::SpinLock basic_lock{};
     Common::SpinLock advance_lock{};
     std::unique_ptr<std::thread> timer_thread;
-- 
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