Kernel/Mutex: Propagate thread priority changes to other threads inheriting the priority via mutexes

1 files changed, 9 insertions, 0 deletions

diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index f2bc1ec9c..e2f0cc831 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -90,6 +90,12 @@ public:
     void SetPriority(s32 priority);
 
     /**
+     * Boost's a thread's priority to the best priority among the thread's held mutexes.
+     * This prevents priority inversion via priority inheritance.
+     */
+    void UpdatePriority();
+
+    /**
      * Temporarily boosts the thread's priority until the next time it is scheduled
      * @param priority The new priority
      */
@@ -178,6 +184,9 @@ public:
     /// Mutexes currently held by this thread, which will be released when it exits.
     boost::container::flat_set<SharedPtr<Mutex>> held_mutexes;
 
+    /// Mutexes that this thread is currently waiting for.
+    boost::container::flat_set<SharedPtr<Mutex>> pending_mutexes;
+
     SharedPtr<Process> owner_process; ///< Process that owns this thread
 
     /// Objects that the thread is waiting on.