suyu/src/core/file_sys/vfs_offset.cpp
Lioncash 05ef9dfc10 file-sys: Default heavy-weight class destructors in the cpp file
Several classes have a lot of non-trivial members within them, or don't
but likely should have the destructor defaulted in the cpp file for
future-proofing/being more friendly to forward declarations.

Leaving the destructor unspecified allows the compiler to inline the
destruction code all over the place, which is generally undesirable from
a code bloat perspective.
2018-09-19 19:34:08 -04:00

98 lines
2.7 KiB
C++

// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <utility>
#include "core/file_sys/vfs_offset.h"
namespace FileSys {
OffsetVfsFile::OffsetVfsFile(std::shared_ptr<VfsFile> file_, std::size_t size_, std::size_t offset_,
std::string name_, VirtualDir parent_)
: file(file_), offset(offset_), size(size_), name(std::move(name_)),
parent(parent_ == nullptr ? file->GetContainingDirectory() : std::move(parent_)) {}
OffsetVfsFile::~OffsetVfsFile() = default;
std::string OffsetVfsFile::GetName() const {
return name.empty() ? file->GetName() : name;
}
std::size_t OffsetVfsFile::GetSize() const {
return size;
}
bool OffsetVfsFile::Resize(std::size_t new_size) {
if (offset + new_size < file->GetSize()) {
size = new_size;
} else {
auto res = file->Resize(offset + new_size);
if (!res)
return false;
size = new_size;
}
return true;
}
std::shared_ptr<VfsDirectory> OffsetVfsFile::GetContainingDirectory() const {
return parent;
}
bool OffsetVfsFile::IsWritable() const {
return file->IsWritable();
}
bool OffsetVfsFile::IsReadable() const {
return file->IsReadable();
}
std::size_t OffsetVfsFile::Read(u8* data, std::size_t length, std::size_t r_offset) const {
return file->Read(data, TrimToFit(length, r_offset), offset + r_offset);
}
std::size_t OffsetVfsFile::Write(const u8* data, std::size_t length, std::size_t r_offset) {
return file->Write(data, TrimToFit(length, r_offset), offset + r_offset);
}
boost::optional<u8> OffsetVfsFile::ReadByte(std::size_t r_offset) const {
if (r_offset < size)
return file->ReadByte(offset + r_offset);
return boost::none;
}
std::vector<u8> OffsetVfsFile::ReadBytes(std::size_t r_size, std::size_t r_offset) const {
return file->ReadBytes(TrimToFit(r_size, r_offset), offset + r_offset);
}
std::vector<u8> OffsetVfsFile::ReadAllBytes() const {
return file->ReadBytes(size, offset);
}
bool OffsetVfsFile::WriteByte(u8 data, std::size_t r_offset) {
if (r_offset < size)
return file->WriteByte(data, offset + r_offset);
return false;
}
std::size_t OffsetVfsFile::WriteBytes(const std::vector<u8>& data, std::size_t r_offset) {
return file->Write(data.data(), TrimToFit(data.size(), r_offset), offset + r_offset);
}
bool OffsetVfsFile::Rename(std::string_view name) {
return file->Rename(name);
}
std::size_t OffsetVfsFile::GetOffset() const {
return offset;
}
std::size_t OffsetVfsFile::TrimToFit(std::size_t r_size, std::size_t r_offset) const {
return std::clamp(r_size, std::size_t{0}, size - r_offset);
}
} // namespace FileSys