mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-29 16:21:13 +00:00
85 lines
3.7 KiB
C++
85 lines
3.7 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
#include <stratosphere/fssystem/fssystem_bucket_tree.hpp>
|
|
|
|
namespace ams::fssystem::impl {
|
|
|
|
class SafeValue {
|
|
public:
|
|
static ALWAYS_INLINE s64 GetInt64(const void *ptr) {
|
|
s64 value;
|
|
std::memcpy(std::addressof(value), ptr, sizeof(s64));
|
|
return value;
|
|
}
|
|
|
|
static ALWAYS_INLINE s64 GetInt64(const s64 *ptr) {
|
|
return GetInt64(static_cast<const void *>(ptr));
|
|
}
|
|
|
|
static ALWAYS_INLINE s64 GetInt64(const s64 &v) {
|
|
return GetInt64(std::addressof(v));
|
|
}
|
|
|
|
static ALWAYS_INLINE void SetInt64(void *dst, const void *src) {
|
|
std::memcpy(dst, src, sizeof(s64));
|
|
}
|
|
|
|
static ALWAYS_INLINE void SetInt64(void *dst, const s64 *src) {
|
|
return SetInt64(dst, static_cast<const void *>(src));
|
|
}
|
|
|
|
static ALWAYS_INLINE void SetInt64(void *dst, const s64 &v) {
|
|
return SetInt64(dst, std::addressof(v));
|
|
}
|
|
};
|
|
|
|
template<typename IteratorType>
|
|
struct BucketTreeNode {
|
|
using Header = BucketTree::NodeHeader;
|
|
|
|
Header header;
|
|
|
|
s32 GetCount() const { return this->header.count; }
|
|
|
|
void *GetArray() { return std::addressof(this->header) + 1; }
|
|
template<typename T> T *GetArray() { return reinterpret_cast<T *>(this->GetArray()); }
|
|
const void *GetArray() const { return std::addressof(this->header) + 1; }
|
|
template<typename T> const T *GetArray() const { return reinterpret_cast<const T *>(this->GetArray()); }
|
|
|
|
s64 GetBeginOffset() const { return *this->GetArray<s64>(); }
|
|
s64 GetEndOffset() const { return this->header.offset; }
|
|
|
|
IteratorType GetBegin() { return IteratorType(this->GetArray<s64>()); }
|
|
IteratorType GetEnd() { return IteratorType(this->GetArray<s64>()) + this->header.count; }
|
|
IteratorType GetBegin() const { return IteratorType(this->GetArray<s64>()); }
|
|
IteratorType GetEnd() const { return IteratorType(this->GetArray<s64>()) + this->header.count; }
|
|
|
|
IteratorType GetBegin(size_t entry_size) { return IteratorType(this->GetArray(), entry_size); }
|
|
IteratorType GetEnd(size_t entry_size) { return IteratorType(this->GetArray(), entry_size) + this->header.count; }
|
|
IteratorType GetBegin(size_t entry_size) const { return IteratorType(this->GetArray(), entry_size); }
|
|
IteratorType GetEnd(size_t entry_size) const { return IteratorType(this->GetArray(), entry_size) + this->header.count; }
|
|
};
|
|
|
|
constexpr inline s64 GetBucketTreeEntryOffset(s64 entry_set_offset, size_t entry_size, s32 entry_index) {
|
|
return entry_set_offset + sizeof(BucketTree::NodeHeader) + entry_index * static_cast<s64>(entry_size);
|
|
}
|
|
|
|
constexpr inline s64 GetBucketTreeEntryOffset(s32 entry_set_index, size_t node_size, size_t entry_size, s32 entry_index) {
|
|
return GetBucketTreeEntryOffset(entry_set_index * static_cast<s64>(node_size), entry_size, entry_index);
|
|
}
|
|
|
|
}
|