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util: add pointer utils, use to constrain fs pointers

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This commit is contained in:
Michael Scire 2022-03-24 16:21:03 -07:00
parent 141ae5c7ab
commit dfa475a769
8 changed files with 75 additions and 6 deletions
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2
libraries/libstratosphere/include/stratosphere/fs/fs_filesystem.hpp
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@ -20,7 +20,7 @@ namespace ams::fs {
namespace fsa {
class IFile;
class IFileSystem;
}

3
libraries/libstratosphere/include/stratosphere/fs/fs_istorage.hpp
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@ -110,4 +110,7 @@ namespace ams::fs {
}
};
template<typename T>
concept PointerToStorage = ::ams::util::RawOrSmartPointerTo<T, ::ams::fs::IStorage>;
}

3
libraries/libstratosphere/include/stratosphere/fs/fsa/fs_ifilesystem.hpp
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@ -181,4 +181,7 @@ namespace ams::fs::fsa {
}
};
template<typename T>
concept PointerToFileSystem = ::ams::util::RawOrSmartPointerTo<T, ::ams::fs::fsa::IFileSystem>;
}

2
libraries/libstratosphere/include/stratosphere/fssystem/fssystem_aes_ctr_storage.hpp
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@ -21,7 +21,7 @@
namespace ams::fssystem {
/* ACCURATE_TO_VERSION: Unknown */
template<typename BasePointer>
template<fs::PointerToStorage BasePointer>
class AesCtrStorage : public ::ams::fs::IStorage, public ::ams::fs::impl::Newable {
NON_COPYABLE(AesCtrStorage);
NON_MOVEABLE(AesCtrStorage);

2
libraries/libstratosphere/include/stratosphere/fssystem/fssystem_aes_xts_storage.hpp
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@ -22,7 +22,7 @@
namespace ams::fssystem {
/* ACCURATE_TO_VERSION: Unknown */
template<typename BasePointer>
template<fs::PointerToStorage BasePointer>
class AesXtsStorage : public ::ams::fs::IStorage, public ::ams::fs::impl::Newable {
NON_COPYABLE(AesXtsStorage);
NON_MOVEABLE(AesXtsStorage);

6
libraries/libstratosphere/include/stratosphere/fssystem/fssystem_alignment_matching_storage.hpp
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@ -133,7 +133,7 @@ namespace ams::fssystem {
};
/* ACCURATE_TO_VERSION: Unknown */
template<typename BaseStorageType, size_t _BufferAlign>
template<fs::PointerToStorage BasePointer, size_t _BufferAlign>
class AlignmentMatchingStoragePooledBuffer : public ::ams::fs::IStorage, public ::ams::fs::impl::Newable {
NON_COPYABLE(AlignmentMatchingStoragePooledBuffer);
NON_MOVEABLE(AlignmentMatchingStoragePooledBuffer);
@ -142,12 +142,12 @@ namespace ams::fssystem {
static_assert(util::IsPowerOfTwo(BufferAlign));
private:
BaseStorageType m_base_storage;
BasePointer m_base_storage;
s64 m_base_storage_size;
size_t m_data_align;
bool m_is_base_storage_size_dirty;
public:
explicit AlignmentMatchingStoragePooledBuffer(BaseStorageType bs, size_t da) : m_base_storage(std::move(bs)), m_data_align(da), m_is_base_storage_size_dirty(true) {
explicit AlignmentMatchingStoragePooledBuffer(BasePointer bs, size_t da) : m_base_storage(std::move(bs)), m_data_align(da), m_is_base_storage_size_dirty(true) {
AMS_ASSERT(util::IsPowerOfTwo(da));
}

1
libraries/libvapours/include/vapours/util.hpp
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@ -22,6 +22,7 @@
#include <vapours/util/util_alignment.hpp>
#include <vapours/util/util_size.hpp>
#include <vapours/util/util_int_util.hpp>
#include <vapours/util/util_pointer_util.hpp>
#include <vapours/util/util_aligned_buffer.hpp>
#include <vapours/util/util_enum.hpp>
#include <vapours/util/util_endian.hpp>

62
libraries/libvapours/include/vapours/util/util_pointer_util.hpp Normal file
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@ -0,0 +1,62 @@
/*
* Copyright (c) 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 <vapours/common.hpp>
#include <vapours/assert.hpp>
namespace ams::util {
namespace impl {
template<typename T>
struct IsSharedPointerImpl : public std::false_type{};
template<typename T>
struct IsSharedPointerImpl<std::shared_ptr<T>> : public std::true_type{};
template<typename T>
struct IsUniquePointerImpl : public std::false_type{};
template<typename T>
struct IsUniquePointerImpl<std::unique_ptr<T>> : public std::true_type{};
template<typename T, typename U>
concept PointerToImpl = std::same_as<typename std::pointer_traits<T>::element_type, U>;
}
template<typename T>
concept IsRawPointer = std::is_pointer<T>::value;
template<typename T>
concept IsSharedPointer = impl::IsSharedPointerImpl<T>::value;
template<typename T>
concept IsUniquePointer = impl::IsUniquePointerImpl<T>::value;
template<typename T>
concept IsSmartPointer = IsSharedPointer<T> || IsUniquePointer<T>;
template<typename T>
concept IsRawOrSmartPointer = IsRawPointer<T> || IsSmartPointer<T>;
template<typename T, typename U>
concept SmartPointerTo = IsSmartPointer<T> && impl::PointerToImpl<T, U>;
template<typename T, typename U>
concept RawOrSmartPointerTo = IsRawOrSmartPointer<T> && impl::PointerToImpl<T, U>;
}