From 78f977c980e125e92b86261335447d0a254f18ee Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Sun, 22 Dec 2019 17:49:51 -0500
Subject: service: time: Rewrite implementation of glue services.

---
 src/core/hle/service/time/time_sharedmemory.cpp | 53 ++++++++++---------------
 1 file changed, 21 insertions(+), 32 deletions(-)

(limited to 'src/core/hle/service/time/time_sharedmemory.cpp')

diff --git a/src/core/hle/service/time/time_sharedmemory.cpp b/src/core/hle/service/time/time_sharedmemory.cpp
index 4035f5072..9b03191bf 100644
--- a/src/core/hle/service/time/time_sharedmemory.cpp
+++ b/src/core/hle/service/time/time_sharedmemory.cpp
@@ -3,20 +3,21 @@
 // Refer to the license.txt file included.
 
 #include "core/core.h"
+#include "core/core_timing.h"
+#include "core/core_timing_util.h"
+#include "core/hle/service/time/clock_types.h"
+#include "core/hle/service/time/steady_clock_core.h"
 #include "core/hle/service/time/time_sharedmemory.h"
 
 namespace Service::Time {
-const std::size_t SHARED_MEMORY_SIZE = 0x1000;
+
+static constexpr std::size_t SHARED_MEMORY_SIZE{0x1000};
 
 SharedMemory::SharedMemory(Core::System& system) : system(system) {
     shared_memory_holder = Kernel::SharedMemory::Create(
         system.Kernel(), nullptr, SHARED_MEMORY_SIZE, Kernel::MemoryPermission::ReadWrite,
         Kernel::MemoryPermission::Read, 0, Kernel::MemoryRegion::BASE, "Time:SharedMemory");
-
-    // Seems static from 1.0.0 -> 8.1.0. Specific games seem to check this value and crash
-    // if it's set to anything else
-    shared_memory_format.format_version = 14;
-    std::memcpy(shared_memory_holder->GetPointer(), &shared_memory_format, sizeof(Format));
+    std::memset(shared_memory_holder->GetPointer(), 0, SHARED_MEMORY_SIZE);
 }
 
 SharedMemory::~SharedMemory() = default;
@@ -25,44 +26,32 @@ std::shared_ptr<Kernel::SharedMemory> SharedMemory::GetSharedMemoryHolder() cons
     return shared_memory_holder;
 }
 
-void SharedMemory::SetStandardSteadyClockTimepoint(const SteadyClockTimePoint& timepoint) {
+void SharedMemory::SetupStandardSteadyClock(Core::System& system,
+                                            const Common::UUID& clock_source_id,
+                                            Clock::TimeSpanType current_time_point) {
+    const Clock::TimeSpanType ticks_time_span{Clock::TimeSpanType::FromTicks(
+        Core::Timing::CpuCyclesToClockCycles(system.CoreTiming().GetTicks()),
+        Core::Timing::CNTFREQ)};
+    const Clock::SteadyClockContext context{
+        static_cast<u64>(current_time_point.nanoseconds - ticks_time_span.nanoseconds),
+        clock_source_id};
     shared_memory_format.standard_steady_clock_timepoint.StoreData(
-        shared_memory_holder->GetPointer(), timepoint);
+        shared_memory_holder->GetPointer(), context);
 }
 
-void SharedMemory::SetStandardLocalSystemClockContext(const SystemClockContext& context) {
+void SharedMemory::UpdateLocalSystemClockContext(const Clock::SystemClockContext& context) {
     shared_memory_format.standard_local_system_clock_context.StoreData(
         shared_memory_holder->GetPointer(), context);
 }
 
-void SharedMemory::SetStandardNetworkSystemClockContext(const SystemClockContext& context) {
+void SharedMemory::UpdateNetworkSystemClockContext(const Clock::SystemClockContext& context) {
     shared_memory_format.standard_network_system_clock_context.StoreData(
         shared_memory_holder->GetPointer(), context);
 }
 
-void SharedMemory::SetStandardUserSystemClockAutomaticCorrectionEnabled(bool enabled) {
+void SharedMemory::SetAutomaticCorrectionEnabled(bool is_enabled) {
     shared_memory_format.standard_user_system_clock_automatic_correction.StoreData(
-        shared_memory_holder->GetPointer(), enabled);
-}
-
-SteadyClockTimePoint SharedMemory::GetStandardSteadyClockTimepoint() {
-    return shared_memory_format.standard_steady_clock_timepoint.ReadData(
-        shared_memory_holder->GetPointer());
-}
-
-SystemClockContext SharedMemory::GetStandardLocalSystemClockContext() {
-    return shared_memory_format.standard_local_system_clock_context.ReadData(
-        shared_memory_holder->GetPointer());
-}
-
-SystemClockContext SharedMemory::GetStandardNetworkSystemClockContext() {
-    return shared_memory_format.standard_network_system_clock_context.ReadData(
-        shared_memory_holder->GetPointer());
-}
-
-bool SharedMemory::GetStandardUserSystemClockAutomaticCorrectionEnabled() {
-    return shared_memory_format.standard_user_system_clock_automatic_correction.ReadData(
-        shared_memory_holder->GetPointer());
+        shared_memory_holder->GetPointer(), is_enabled);
 }
 
 } // namespace Service::Time
-- 
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