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

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This commit is contained in:
Subv 2017-01-02 19:38:08 -05:00
parent b6a0355568
commit d3ff5b91e1
5 changed files with 60 additions and 42 deletions
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21
src/core/hle/kernel/thread.cpp
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@ -105,15 +105,15 @@ void Thread::Stop() {
WakeupAllWaitingThreads();
// Release all the mutexes that this thread holds
ReleaseThreadMutexes(this);
// Clean up any dangling references in objects that this thread was waiting for
for (auto& wait_object : wait_objects) {
wait_object->RemoveWaitingThread(this);
}
wait_objects.clear();
// Release all the mutexes that this thread holds
ReleaseThreadMutexes(this);
// Mark the TLS slot in the thread's page as free.
u32 tls_page = (tls_address - Memory::TLS_AREA_VADDR) / Memory::PAGE_SIZE;
u32 tls_slot =
@ -515,8 +515,21 @@ void Thread::SetPriority(s32 priority) {
nominal_priority = current_priority = priority;
}
void Thread::UpdatePriority() {
s32 best_priority = nominal_priority;
for (auto& mutex : held_mutexes) {
if (mutex->priority < best_priority)
best_priority = mutex->priority;
}
BoostPriority(best_priority);
}
void Thread::BoostPriority(s32 priority) {
ready_queue.move(this, current_priority, priority);
// If thread was ready, adjust queues
if (status == THREADSTATUS_READY)
ready_queue.move(this, current_priority, priority);
else
ready_queue.prepare(priority);
current_priority = priority;
}