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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/core.h"
#include "core/hle/service/psc/time/alarms.h"
#include "core/hle/service/psc/time/manager.h"
namespace Service::PSC::Time {
Alarm::Alarm(Core::System& system, KernelHelpers::ServiceContext& ctx, AlarmType type)
: m_ctx{ctx}, m_event{ctx.CreateEvent("Psc:Alarm:Event")} {
m_event->Clear();
switch (type) {
case WakeupAlarm:
m_priority = 1;
break;
case BackgroundTaskAlarm:
m_priority = 0;
break;
default:
UNREACHABLE();
return;
}
}
Alarm::~Alarm() {
m_ctx.CloseEvent(m_event);
}
Alarms::Alarms(Core::System& system, StandardSteadyClockCore& steady_clock,
PowerStateRequestManager& power_state_request_manager)
: m_system{system}, m_ctx{system, "Psc:Alarms"}, m_steady_clock{steady_clock},
m_power_state_request_manager{power_state_request_manager}, m_event{m_ctx.CreateEvent(
"Psc:Alarms:Event")} {}
Alarms::~Alarms() {
m_ctx.CloseEvent(m_event);
}
Result Alarms::Enable(Alarm& alarm, s64 time) {
R_UNLESS(m_steady_clock.IsInitialized(), ResultClockUninitialized);
std::scoped_lock l{m_mutex};
R_UNLESS(alarm.IsLinked(), ResultAlarmNotRegistered);
auto time_ns{time + m_steady_clock.GetRawTime()};
auto one_second_ns{
std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
time_ns = Common::AlignUp(time_ns, one_second_ns);
alarm.SetAlertTime(time_ns);
Insert(alarm);
R_RETURN(UpdateClosestAndSignal());
}
void Alarms::Disable(Alarm& alarm) {
std::scoped_lock l{m_mutex};
if (!alarm.IsLinked()) {
return;
}
Erase(alarm);
UpdateClosestAndSignal();
}
void Alarms::CheckAndSignal() {
std::scoped_lock l{m_mutex};
if (m_alarms.empty()) {
return;
}
bool alarm_signalled{false};
for (auto& alarm : m_alarms) {
if (m_steady_clock.GetRawTime() >= alarm.GetAlertTime()) {
alarm.Signal();
alarm.Lock();
Erase(alarm);
m_power_state_request_manager.UpdatePendingPowerStateRequestPriority(
alarm.GetPriority());
alarm_signalled = true;
}
}
if (!alarm_signalled) {
return;
}
m_power_state_request_manager.SignalPowerStateRequestAvailability();
UpdateClosestAndSignal();
}
bool Alarms::GetClosestAlarm(Alarm** out_alarm) {
std::scoped_lock l{m_mutex};
auto alarm = m_alarms.empty() ? nullptr : std::addressof(m_alarms.front());
*out_alarm = alarm;
return alarm != nullptr;
}
void Alarms::Insert(Alarm& alarm) {
// Alarms are sorted by alert time, then priority
auto it{m_alarms.begin()};
while (it != m_alarms.end()) {
if (alarm.GetAlertTime() < it->GetAlertTime() ||
(alarm.GetAlertTime() == it->GetAlertTime() &&
alarm.GetPriority() < it->GetPriority())) {
m_alarms.insert(it, alarm);
return;
}
it++;
}
m_alarms.push_back(alarm);
}
void Alarms::Erase(Alarm& alarm) {
m_alarms.erase(m_alarms.iterator_to(alarm));
}
Result Alarms::UpdateClosestAndSignal() {
m_closest_alarm = m_alarms.empty() ? nullptr : std::addressof(m_alarms.front());
R_SUCCEED_IF(m_closest_alarm == nullptr);
m_event->Signal();
R_SUCCEED();
}
IAlarmService::IAlarmService(Core::System& system_, std::shared_ptr<TimeManager> manager)
: ServiceFramework{system_, "time:al"}, m_system{system}, m_alarms{manager->m_alarms} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &IAlarmService::CreateWakeupAlarm, "CreateWakeupAlarm"},
{1, &IAlarmService::CreateBackgroundTaskAlarm, "CreateBackgroundTaskAlarm"},
};
// clang-format on
RegisterHandlers(functions);
}
void IAlarmService::CreateWakeupAlarm(HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called.");
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
rb.Push(ResultSuccess);
rb.PushIpcInterface<ISteadyClockAlarm>(system, m_alarms, AlarmType::WakeupAlarm);
}
void IAlarmService::CreateBackgroundTaskAlarm(HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called.");
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
rb.Push(ResultSuccess);
rb.PushIpcInterface<ISteadyClockAlarm>(system, m_alarms, AlarmType::BackgroundTaskAlarm);
}
ISteadyClockAlarm::ISteadyClockAlarm(Core::System& system_, Alarms& alarms, AlarmType type)
: ServiceFramework{system_, "ISteadyClockAlarm"}, m_ctx{system, "Psc:ISteadyClockAlarm"},
m_alarms{alarms}, m_alarm{system, m_ctx, type} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &ISteadyClockAlarm::GetAlarmEvent, "GetAlarmEvent"},
{1, &ISteadyClockAlarm::Enable, "Enable"},
{2, &ISteadyClockAlarm::Disable, "Disable"},
{3, &ISteadyClockAlarm::IsEnabled, "IsEnabled"},
{10, nullptr, "CreateWakeLock"},
{11, nullptr, "DestroyWakeLock"},
};
// clang-format on
RegisterHandlers(functions);
}
void ISteadyClockAlarm::GetAlarmEvent(HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called.");
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(ResultSuccess);
rb.PushCopyObjects(m_alarm.GetEventHandle());
}
void ISteadyClockAlarm::Enable(HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called.");
IPC::RequestParser rp{ctx};
auto time{rp.Pop<s64>()};
auto res = m_alarms.Enable(m_alarm, time);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(res);
}
void ISteadyClockAlarm::Disable(HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called.");
m_alarms.Disable(m_alarm);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
void ISteadyClockAlarm::IsEnabled(HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called.");
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(ResultSuccess);
rb.Push<bool>(m_alarm.IsLinked());
}
} // namespace Service::PSC::Time
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