kernel: process: Implement GetFreeThreadCount
Used by Just Dance® 2023 Edition
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@ -285,6 +285,17 @@ void KProcess::UnregisterThread(KThread* thread) {
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thread_list.remove(thread);
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}
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u64 KProcess::GetFreeThreadCount() const {
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if (resource_limit != nullptr) {
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const auto current_value =
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resource_limit->GetCurrentValue(LimitableResource::ThreadCountMax);
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const auto limit_value = resource_limit->GetLimitValue(LimitableResource::ThreadCountMax);
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return limit_value - current_value;
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} else {
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return 0;
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}
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}
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Result KProcess::Reset() {
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// Lock the process and the scheduler.
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KScopedLightLock lk(state_lock);
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@ -304,6 +304,9 @@ public:
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/// from this process' thread list.
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void UnregisterThread(KThread* thread);
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/// Retrieves the number of available threads for this process.
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u64 GetFreeThreadCount() const;
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/// Clears the signaled state of the process if and only if it's signaled.
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///
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/// @pre The process must not be already terminated. If this is called on a
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@ -815,8 +815,15 @@ static Result GetInfo(Core::System& system, u64* result, u64 info_id, Handle han
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// 6.0.0+
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TotalPhysicalMemoryAvailableWithoutSystemResource = 21,
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TotalPhysicalMemoryUsedWithoutSystemResource = 22,
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// 10.0.0+
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IsApplication = 23,
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// 13.0.0+
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FreeThreadCount = 24,
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// 14.0.0+
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IsSvcPermitted = 26,
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// Homebrew only
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MesosphereMeta = 65000,
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MesosphereCurrentProcess = 65001,
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};
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@ -840,7 +847,9 @@ static Result GetInfo(Core::System& system, u64* result, u64 info_id, Handle han
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case GetInfoType::TitleId:
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case GetInfoType::UserExceptionContextAddr:
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case GetInfoType::TotalPhysicalMemoryAvailableWithoutSystemResource:
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case GetInfoType::TotalPhysicalMemoryUsedWithoutSystemResource: {
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case GetInfoType::TotalPhysicalMemoryUsedWithoutSystemResource:
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case GetInfoType::IsApplication:
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case GetInfoType::FreeThreadCount: {
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if (info_sub_id != 0) {
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LOG_ERROR(Kernel_SVC, "Info sub id is non zero! info_id={}, info_sub_id={}", info_id,
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info_sub_id);
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@ -929,6 +938,10 @@ static Result GetInfo(Core::System& system, u64* result, u64 info_id, Handle han
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*result = process->GetTotalPhysicalMemoryUsedWithoutSystemResource();
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return ResultSuccess;
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case GetInfoType::FreeThreadCount:
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*result = process->GetFreeThreadCount();
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return ResultSuccess;
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default:
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break;
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}
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