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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.
This commit is contained in:
Morph 2022-03-17 01:22:38 -04:00
parent 613558867c
commit 8b7d571b66
2 changed files with 12 additions and 30 deletions
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8
src/core/hle/kernel/k_handle_table.cpp
View File

@ -63,7 +63,7 @@ bool KHandleTable::Remove(Handle handle) {
return true;
}
ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj, u16 type) {
ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj) {
KScopedDisableDispatch dd(kernel);
KScopedSpinLock lk(m_lock);
@ -75,7 +75,7 @@ ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj, u16 type) {
const auto linear_id = this->AllocateLinearId();
const auto index = this->AllocateEntry();
m_entry_infos[index].info = {.linear_id = linear_id, .type = type};
m_entry_infos[index].linear_id = linear_id;
m_objects[index] = obj;
obj->Open();
@ -116,7 +116,7 @@ void KHandleTable::Unreserve(Handle handle) {
}
}
void KHandleTable::Register(Handle handle, KAutoObject* obj, u16 type) {
void KHandleTable::Register(Handle handle, KAutoObject* obj) {
KScopedDisableDispatch dd(kernel);
KScopedSpinLock lk(m_lock);
@ -132,7 +132,7 @@ void KHandleTable::Register(Handle handle, KAutoObject* obj, u16 type) {
// Set the entry.
ASSERT(m_objects[index] == nullptr);
m_entry_infos[index].info = {.linear_id = static_cast<u16>(linear_id), .type = type};
m_entry_infos[index].linear_id = static_cast<u16>(linear_id);
m_objects[index] = obj;
obj->Open();

34
src/core/hle/kernel/k_handle_table.h
View File

@ -42,7 +42,7 @@ public:
m_free_head_index = -1;
// Free all entries.
for (s32 i = 0; i < static_cast<s32>(m_table_size); ++i) {
for (s16 i = 0; i < static_cast<s16>(m_table_size); ++i) {
m_objects[i] = nullptr;
m_entry_infos[i].next_free_index = i - 1;
m_free_head_index = i;
@ -104,17 +104,8 @@ public:
ResultCode Reserve(Handle* out_handle);
void Unreserve(Handle handle);
template <typename T>
ResultCode Add(Handle* out_handle, T* obj) {
static_assert(std::is_base_of_v<KAutoObject, T>);
return this->Add(out_handle, obj, obj->GetTypeObj().GetClassToken());
}
template <typename T>
void Register(Handle handle, T* obj) {
static_assert(std::is_base_of_v<KAutoObject, T>);
return this->Register(handle, obj, obj->GetTypeObj().GetClassToken());
}
ResultCode Add(Handle* out_handle, KAutoObject* obj);
void Register(Handle handle, KAutoObject* obj);
template <typename T>
bool GetMultipleObjects(T** out, const Handle* handles, size_t num_handles) const {
@ -160,9 +151,6 @@ public:
}
private:
ResultCode Add(Handle* out_handle, KAutoObject* obj, u16 type);
void Register(Handle handle, KAutoObject* obj, u16 type);
s32 AllocateEntry() {
ASSERT(m_count < m_table_size);
@ -179,7 +167,7 @@ private:
ASSERT(m_count > 0);
m_objects[index] = nullptr;
m_entry_infos[index].next_free_index = m_free_head_index;
m_entry_infos[index].next_free_index = static_cast<s16>(m_free_head_index);
m_free_head_index = index;
@ -278,19 +266,13 @@ private:
}
union EntryInfo {
struct {
u16 linear_id;
u16 type;
} info;
s32 next_free_index;
u16 linear_id;
s16 next_free_index;
constexpr u16 GetLinearId() const {
return info.linear_id;
return linear_id;
}
constexpr u16 GetType() const {
return info.type;
}
constexpr s32 GetNextFreeIndex() const {
constexpr s16 GetNextFreeIndex() const {
return next_free_index;
}
};