KHandleTable: Optimize table entry layout
Since the handle type is not being used, we can reduce the amount of space each entry takes up by 4 bytes.
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613558867c
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8b7d571b66
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@ -63,7 +63,7 @@ bool KHandleTable::Remove(Handle handle) {
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return true;
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}
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ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj, u16 type) {
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ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj) {
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KScopedDisableDispatch dd(kernel);
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KScopedSpinLock lk(m_lock);
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@ -75,7 +75,7 @@ ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj, u16 type) {
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const auto linear_id = this->AllocateLinearId();
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const auto index = this->AllocateEntry();
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m_entry_infos[index].info = {.linear_id = linear_id, .type = type};
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m_entry_infos[index].linear_id = linear_id;
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m_objects[index] = obj;
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obj->Open();
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@ -116,7 +116,7 @@ void KHandleTable::Unreserve(Handle handle) {
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}
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}
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void KHandleTable::Register(Handle handle, KAutoObject* obj, u16 type) {
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void KHandleTable::Register(Handle handle, KAutoObject* obj) {
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KScopedDisableDispatch dd(kernel);
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KScopedSpinLock lk(m_lock);
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@ -132,7 +132,7 @@ void KHandleTable::Register(Handle handle, KAutoObject* obj, u16 type) {
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// Set the entry.
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ASSERT(m_objects[index] == nullptr);
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m_entry_infos[index].info = {.linear_id = static_cast<u16>(linear_id), .type = type};
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m_entry_infos[index].linear_id = static_cast<u16>(linear_id);
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m_objects[index] = obj;
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obj->Open();
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@ -42,7 +42,7 @@ public:
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m_free_head_index = -1;
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// Free all entries.
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for (s32 i = 0; i < static_cast<s32>(m_table_size); ++i) {
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for (s16 i = 0; i < static_cast<s16>(m_table_size); ++i) {
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m_objects[i] = nullptr;
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m_entry_infos[i].next_free_index = i - 1;
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m_free_head_index = i;
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@ -104,17 +104,8 @@ public:
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ResultCode Reserve(Handle* out_handle);
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void Unreserve(Handle handle);
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template <typename T>
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ResultCode Add(Handle* out_handle, T* obj) {
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static_assert(std::is_base_of_v<KAutoObject, T>);
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return this->Add(out_handle, obj, obj->GetTypeObj().GetClassToken());
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}
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template <typename T>
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void Register(Handle handle, T* obj) {
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static_assert(std::is_base_of_v<KAutoObject, T>);
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return this->Register(handle, obj, obj->GetTypeObj().GetClassToken());
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}
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ResultCode Add(Handle* out_handle, KAutoObject* obj);
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void Register(Handle handle, KAutoObject* obj);
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template <typename T>
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bool GetMultipleObjects(T** out, const Handle* handles, size_t num_handles) const {
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@ -160,9 +151,6 @@ public:
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}
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private:
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ResultCode Add(Handle* out_handle, KAutoObject* obj, u16 type);
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void Register(Handle handle, KAutoObject* obj, u16 type);
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s32 AllocateEntry() {
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ASSERT(m_count < m_table_size);
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@ -179,7 +167,7 @@ private:
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ASSERT(m_count > 0);
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m_objects[index] = nullptr;
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m_entry_infos[index].next_free_index = m_free_head_index;
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m_entry_infos[index].next_free_index = static_cast<s16>(m_free_head_index);
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m_free_head_index = index;
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@ -278,19 +266,13 @@ private:
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}
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union EntryInfo {
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struct {
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u16 linear_id;
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u16 type;
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} info;
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s32 next_free_index;
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s16 next_free_index;
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constexpr u16 GetLinearId() const {
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return info.linear_id;
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return linear_id;
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}
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constexpr u16 GetType() const {
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return info.type;
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}
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constexpr s32 GetNextFreeIndex() const {
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constexpr s16 GetNextFreeIndex() const {
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return next_free_index;
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}
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};
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