mirror of
https://github.com/Atmosphere-NX/Atmosphere
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0105455086
subrepo: subdir: "libraries" merged: "07af583b" upstream: origin: "https://github.com/Atmosphere-NX/Atmosphere-libs" branch: "master" commit: "07af583b" git-subrepo: version: "0.4.0" origin: "https://github.com/ingydotnet/git-subrepo" commit: "5d6aba9"
96 lines
4.1 KiB
C++
96 lines
4.1 KiB
C++
/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "../fs_common.hpp"
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#include "../fs_file.hpp"
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#include "../fs_operate_range.hpp"
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namespace ams::fs::fsa {
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class IFile {
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public:
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virtual ~IFile() { /* ... */ }
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Result Read(size_t *out, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) {
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R_UNLESS(out != nullptr, fs::ResultNullptrArgument());
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if (size == 0) {
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*out = 0;
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return ResultSuccess();
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}
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R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
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R_UNLESS(offset >= 0, fs::ResultOutOfRange());
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const s64 signed_size = static_cast<s64>(size);
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R_UNLESS(signed_size >= 0, fs::ResultOutOfRange());
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R_UNLESS((std::numeric_limits<s64>::max() - offset) >= signed_size, fs::ResultOutOfRange());
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return this->ReadImpl(out, offset, buffer, size, option);
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}
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Result Read(size_t *out, s64 offset, void *buffer, size_t size) {
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return this->Read(out, offset, buffer, size, ReadOption::None);
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}
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Result GetSize(s64 *out) {
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R_UNLESS(out != nullptr, fs::ResultNullptrArgument());
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return this->GetSizeImpl(out);
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}
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Result Flush() {
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return this->FlushImpl();
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}
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Result Write(s64 offset, const void *buffer, size_t size, const fs::WriteOption &option) {
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if (size == 0) {
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if (option.HasFlushFlag()) {
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R_TRY(this->Flush());
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}
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return ResultSuccess();
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}
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R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
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R_UNLESS(offset >= 0, fs::ResultOutOfRange());
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const s64 signed_size = static_cast<s64>(size);
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R_UNLESS(signed_size >= 0, fs::ResultOutOfRange());
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R_UNLESS((std::numeric_limits<s64>::max() - offset) >= signed_size, fs::ResultOutOfRange());
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return this->WriteImpl(offset, buffer, size, option);
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}
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Result SetSize(s64 size) {
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R_UNLESS(size >= 0, fs::ResultOutOfRange());
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return this->SetSizeImpl(size);
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}
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Result OperateRange(void *dst, size_t dst_size, fs::OperationId op_id, s64 offset, s64 size, const void *src, size_t src_size) {
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return this->OperateRangeImpl(dst, dst_size, op_id, offset, size, src, src_size);
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}
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Result OperateRange(fs::OperationId op_id, s64 offset, s64 size) {
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return this->OperateRangeImpl(nullptr, 0, op_id, offset, size, nullptr, 0);
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}
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public:
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/* TODO: This is a hack to allow the mitm API to work. Find a better way? */
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virtual sf::cmif::DomainObjectId GetDomainObjectId() const = 0;
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protected:
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/* ...? */
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private:
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virtual Result ReadImpl(size_t *out, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) = 0;
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virtual Result GetSizeImpl(s64 *out) = 0;
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virtual Result FlushImpl() = 0;
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virtual Result WriteImpl(s64 offset, const void *buffer, size_t size, const fs::WriteOption &option) = 0;
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virtual Result SetSizeImpl(s64 size) = 0;
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virtual Result OperateRangeImpl(void *dst, size_t dst_size, fs::OperationId op_id, s64 offset, s64 size, const void *src, size_t src_size) = 0;
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};
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}
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