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kern: fix bug in SvcSetThreadPriority

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This commit is contained in:
Michael Scire 2020-07-20 02:11:49 -07:00 committed by SciresM
parent 94f9cc1626
commit 5b8a20dbf7
3 changed files with 17 additions and 1 deletions
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3
libraries/libmesosphere/include/mesosphere/kern_k_thread.hpp
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@ -347,8 +347,10 @@ namespace ams::kern {
constexpr s32 GetIdealCore() const { return this->ideal_core_id; }
constexpr s32 GetActiveCore() const { return this->core_id; }
constexpr void SetActiveCore(s32 core) { this->core_id = core; }
constexpr s32 GetPriority() const { return this->priority; }
constexpr void SetPriority(s32 prio) { this->priority = prio; }
constexpr s32 GetBasePriority() const { return this->base_priority; }
constexpr QueueEntry &GetPriorityQueueEntry(s32 core) { return this->per_core_priority_queue_entry[core]; }
@ -438,6 +440,7 @@ namespace ams::kern {
void Wakeup();
void SetBasePriority(s32 priority);
Result SetPriorityToIdle();
Result Run();

13
libraries/libmesosphere/source/kern_k_thread.cpp
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@ -384,6 +384,19 @@ namespace ams::kern {
}
}
void KThread::SetBasePriority(s32 priority) {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(ams::svc::HighestThreadPriority <= priority && priority <= ams::svc::LowestThreadPriority);
KScopedSchedulerLock sl;
/* Change our base priority. */
this->base_priority = priority;
/* Perform a priority restoration. */
RestorePriority(this);
}
Result KThread::SetPriorityToIdle() {
MESOSPHERE_ASSERT_THIS();

2
libraries/libmesosphere/source/svc/kern_svc_thread.cpp
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@ -141,7 +141,7 @@ namespace ams::kern::svc {
R_UNLESS(thread.IsNotNull(), svc::ResultInvalidHandle());
/* Set the thread priority. */
thread->SetPriority(priority);
thread->SetBasePriority(priority);
return ResultSuccess();
}