From 81dd887e744ceb1eab95eb21604e1fc78ad9c4b1 Mon Sep 17 00:00:00 2001
From: "Herman S." <429230+has207@users.noreply.github.com>
Date: Sun, 12 Oct 2025 21:00:11 +0900
Subject: [PATCH] [Kernel] Thread suspend for posix to match windows semantics

---
 src/xenia/base/threading_posix.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/xenia/base/threading_posix.cc b/src/xenia/base/threading_posix.cc
index a2c634d08..862c66911 100644
--- a/src/xenia/base/threading_posix.cc
+++ b/src/xenia/base/threading_posix.cc
@@ -703,11 +703,17 @@ class PosixCondition<Thread> final : public PosixConditionBase {
     }
     WaitStarted();
     std::unique_lock lock(state_mutex_);
-    if (state_ != State::kSuspended) return false;
+    // Check if thread has any suspend count (Windows allows resume even if
+    // running)
+    if (suspend_count_ == 0) return false;
     if (out_previous_suspend_count) {
       *out_previous_suspend_count = suspend_count_;
     }
     --suspend_count_;
+    // If suspend count reaches 0, transition to running
+    if (suspend_count_ == 0 && state_ == State::kSuspended) {
+      state_ = State::kRunning;
+    }
     state_signal_.notify_all();
     return true;
   }