From 60a373a7862a85b8b030ea1b18d01d364ddf8a8b Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Wed, 7 Jan 2015 10:10:58 -0500
Subject: Threads: Use a dummy idle thread when no other are ready.
This thread will not actually execute instructions, it will only advance the timing/events and try to yield immediately to the next ready thread, if there aren't any ready threads then it will be rescheduled and start its job again.
---
src/core/core.cpp | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
(limited to 'src/core/core.cpp')
diff --git a/src/core/core.cpp b/src/core/core.cpp
index 8ac4481ccb..98f8a7dffd 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -5,6 +5,7 @@
#include "common/common_types.h"
#include "core/core.h"
+#include "core/core_timing.h"
#include "core/settings.h"
#include "core/arm/disassembler/arm_disasm.h"
@@ -23,7 +24,17 @@ ARM_Interface* g_sys_core = nullptr; ///< ARM11 system (OS) core
/// Run the core CPU loop
void RunLoop(int tight_loop) {
- g_app_core->Run(tight_loop);
+ // If the current thread is an idle thread, then don't execute instructions,
+ // instead advance to the next event and try to yield to the next thread
+ if (Kernel::IsIdleThread(Kernel::GetCurrentThreadHandle())) {
+ LOG_TRACE(Core_ARM11, "Idling");
+ CoreTiming::Idle();
+ CoreTiming::Advance();
+ HLE::Reschedule(__func__);
+ } else {
+ g_app_core->Run(tight_loop);
+ }
+
HW::Update();
if (HLE::g_reschedule) {
Kernel::Reschedule();
--
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