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// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/core.h"
#include "core/core_timing.h"
#include "core/hle/kernel/k_event.h"
#include "core/hle/kernel/k_memory_manager.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/service/kernel_helpers.h"
namespace Service::KernelHelpers {
ServiceContext::ServiceContext(Core::System& system_, std::string name_)
: kernel(system_.Kernel()) {
if (process = Kernel::GetCurrentProcessPointer(kernel); process != nullptr) {
return;
}
// Create the process.
process = Kernel::KProcess::Create(kernel);
ASSERT(R_SUCCEEDED(process->Initialize(Kernel::Svc::CreateProcessParameter{},
kernel.GetSystemResourceLimit(), false)));
// Register the process.
Kernel::KProcess::Register(kernel, process);
process_created = true;
}
ServiceContext::~ServiceContext() {
if (process_created) {
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::EventCountMax);
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(process);
// Commit the thread reservation.
event_reservation.Commit();
// Register the event.
Kernel::KEvent::Register(kernel, event);
return event;
}
void ServiceContext::CloseEvent(Kernel::KEvent* event) {
if (!event) {
return;
}
event->GetReadableEvent().Close();
event->Close();
}
} // namespace Service::KernelHelpers
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