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service: time: Implement IsStandardNetworkSystemClockAccuracySufficient.

This commit is contained in:
bunnei 2019-12-22 18:10:59 -05:00
parent 4414640285
commit fab2607c6b
5 changed files with 51 additions and 1 deletions

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@ -4,6 +4,8 @@
#pragma once
#include <boost/safe_numerics/safe_integer.hpp>
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/uuid.h"
@ -17,6 +19,24 @@ struct SteadyClockTimePoint {
s64 time_point;
Common::UUID clock_source_id;
ResultCode GetSpanBetween(SteadyClockTimePoint other, s64& span) const {
span = 0;
if (clock_source_id != other.clock_source_id) {
return ERROR_TIME_MISMATCH;
}
const boost::safe_numerics::safe<s64> this_time_point{time_point};
const boost::safe_numerics::safe<s64> other_time_point{other.time_point};
try {
span = other_time_point - this_time_point;
} catch (const std::exception&) {
return ERROR_OVERFLOW;
}
return RESULT_SUCCESS;
}
static SteadyClockTimePoint GetRandom() {
return {0, Common::UUID::Generate()};
}

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@ -24,7 +24,7 @@ Time::Time(std::shared_ptr<Module> module, Core::System& system, const char* nam
{100, nullptr, "IsStandardUserSystemClockAutomaticCorrectionEnabled"},
{101, nullptr, "SetStandardUserSystemClockAutomaticCorrectionEnabled"},
{102, nullptr, "GetStandardUserSystemClockInitialYear"},
{200, nullptr, "IsStandardNetworkSystemClockAccuracySufficient"},
{200, &Time::IsStandardNetworkSystemClockAccuracySufficient, "IsStandardNetworkSystemClockAccuracySufficient"},
{201, nullptr, "GetStandardUserSystemClockAutomaticCorrectionUpdatedTime"},
{300, &Time::CalculateMonotonicSystemClockBaseTimePoint, "CalculateMonotonicSystemClockBaseTimePoint"},
{400, &Time::GetClockSnapshot, "GetClockSnapshot"},

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@ -8,6 +8,10 @@
#include "core/hle/service/time/steady_clock_core.h"
#include "core/hle/service/time/system_clock_core.h"
namespace Core {
class System;
}
namespace Service::Time::Clock {
class StandardNetworkSystemClockCore final : public SystemClockCore {
@ -19,6 +23,22 @@ public:
standard_network_clock_sufficient_accuracy = value;
}
bool IsStandardNetworkSystemClockAccuracySufficient(Core::System& system) {
SystemClockContext context{};
if (GetClockContext(system, context) != RESULT_SUCCESS) {
return {};
}
s64 span{};
if (context.steady_time_point.GetSpanBetween(
GetSteadyClockCore().GetCurrentTimePoint(system), span) != RESULT_SUCCESS) {
return {};
}
return TimeSpanType{span}.nanoseconds <
standard_network_clock_sufficient_accuracy.nanoseconds;
}
private:
TimeSpanType standard_network_clock_sufficient_accuracy{};
};

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@ -199,6 +199,15 @@ void Module::Interface::GetTimeZoneService(Kernel::HLERequestContext& ctx) {
rb.PushIpcInterface<ITimeZoneService>(module->GetTimeManager().GetTimeZoneContentManager());
}
void Module::Interface::IsStandardNetworkSystemClockAccuracySufficient(
Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called");
auto& clock_core{module->GetTimeManager().GetStandardNetworkSystemClockCore()};
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(clock_core.IsStandardNetworkSystemClockAccuracySufficient(system));
}
void Module::Interface::CalculateMonotonicSystemClockBaseTimePoint(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Time, "called");

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@ -27,6 +27,7 @@ public:
void GetStandardNetworkSystemClock(Kernel::HLERequestContext& ctx);
void GetStandardSteadyClock(Kernel::HLERequestContext& ctx);
void GetTimeZoneService(Kernel::HLERequestContext& ctx);
void IsStandardNetworkSystemClockAccuracySufficient(Kernel::HLERequestContext& ctx);
void CalculateMonotonicSystemClockBaseTimePoint(Kernel::HLERequestContext& ctx);
void GetClockSnapshot(Kernel::HLERequestContext& ctx);
void GetSharedMemoryNativeHandle(Kernel::HLERequestContext& ctx);