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Diffstat (limited to 'src/core/hle/service/kernel_helpers.cpp')
-rw-r--r-- | src/core/hle/service/kernel_helpers.cpp | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/core/hle/service/kernel_helpers.cpp b/src/core/hle/service/kernel_helpers.cpp new file mode 100644 index 000000000..895294c9f --- /dev/null +++ b/src/core/hle/service/kernel_helpers.cpp @@ -0,0 +1,64 @@ +// Copyright 2021 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "core/core.h" +#include "core/hle/kernel/k_event.h" +#include "core/hle/kernel/k_process.h" +#include "core/hle/kernel/k_readable_event.h" +#include "core/hle/kernel/k_resource_limit.h" +#include "core/hle/kernel/k_scoped_resource_reservation.h" +#include "core/hle/kernel/k_writable_event.h" +#include "core/hle/service/kernel_helpers.h" + +namespace Service::KernelHelpers { + +ServiceContext::ServiceContext(Core::System& system_, std::string name_) + : kernel(system_.Kernel()) { + process = Kernel::KProcess::Create(kernel); + ASSERT(Kernel::KProcess::Initialize(process, system_, std::move(name_), + Kernel::KProcess::ProcessType::Userland) + .IsSuccess()); +} + +ServiceContext::~ServiceContext() { + process->Close(); + process = nullptr; +} + +Kernel::KEvent* ServiceContext::CreateEvent(std::string&& name) { + // Reserve a new event from the process resource limit + Kernel::KScopedResourceReservation event_reservation(process, + Kernel::LimitableResource::Events); + if (!event_reservation.Succeeded()) { + LOG_CRITICAL(Service, "Resource limit reached!"); + return {}; + } + + // Create a new event. + auto* event = Kernel::KEvent::Create(kernel); + if (!event) { + LOG_CRITICAL(Service, "Unable to create event!"); + return {}; + } + + // Initialize the event. + event->Initialize(std::move(name)); + + // Commit the thread reservation. + event_reservation.Commit(); + + // Register the event. + Kernel::KEvent::Register(kernel, event); + + return event; +} + +void ServiceContext::CloseEvent(Kernel::KEvent* event) { + event->GetReadableEvent().Close(); + event->GetWritableEvent().Close(); +} + +} // namespace Service::KernelHelpers |