mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-18 08:11:21 +00:00
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"
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
/*
|
|
* Copyright (c) 2018-2019 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/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
|
|
namespace ams::fs {
|
|
|
|
Result FileStorage::UpdateSize() {
|
|
R_UNLESS(this->size == InvalidSize, ResultSuccess());
|
|
return this->base_file->GetSize(&this->size);
|
|
}
|
|
|
|
Result FileStorage::Read(s64 offset, void *buffer, size_t size) {
|
|
/* Immediately succeed if there's nothing to read. */
|
|
R_UNLESS(size > 0, ResultSuccess());
|
|
|
|
/* Validate buffer. */
|
|
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
|
|
|
|
/* Ensure our size is valid. */
|
|
R_TRY(this->UpdateSize());
|
|
|
|
/* Ensure our access is valid. */
|
|
R_UNLESS(IStorage::IsRangeValid(offset, size, this->size), fs::ResultOutOfRange());
|
|
|
|
size_t read_size;
|
|
return this->base_file->Read(&read_size, offset, buffer, size);
|
|
}
|
|
|
|
Result FileStorage::Write(s64 offset, const void *buffer, size_t size) {
|
|
/* Immediately succeed if there's nothing to write. */
|
|
R_UNLESS(size > 0, ResultSuccess());
|
|
|
|
/* Validate buffer. */
|
|
R_UNLESS(buffer != nullptr, fs::ResultNullptrArgument());
|
|
|
|
/* Ensure our size is valid. */
|
|
R_TRY(this->UpdateSize());
|
|
|
|
/* Ensure our access is valid. */
|
|
R_UNLESS(IStorage::IsRangeValid(offset, size, this->size), fs::ResultOutOfRange());
|
|
|
|
return this->base_file->Write(offset, buffer, size, fs::WriteOption());
|
|
}
|
|
|
|
Result FileStorage::Flush() {
|
|
return this->base_file->Flush();
|
|
}
|
|
|
|
Result FileStorage::GetSize(s64 *out_size) {
|
|
R_TRY(this->UpdateSize());
|
|
*out_size = this->size;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result FileStorage::SetSize(s64 size) {
|
|
this->size = InvalidSize;
|
|
return this->base_file->SetSize(size);
|
|
}
|
|
|
|
Result FileStorage::OperateRange(void *dst, size_t dst_size, OperationId op_id, s64 offset, s64 size, const void *src, size_t src_size) {
|
|
switch (op_id) {
|
|
case OperationId::InvalidateCache:
|
|
case OperationId::QueryRange:
|
|
if (size == 0) {
|
|
if (op_id == OperationId::QueryRange) {
|
|
R_UNLESS(dst != nullptr, fs::ResultNullptrArgument());
|
|
R_UNLESS(dst_size == sizeof(QueryRangeInfo), fs::ResultInvalidSize());
|
|
reinterpret_cast<QueryRangeInfo *>(dst)->Clear();
|
|
}
|
|
return ResultSuccess();
|
|
}
|
|
R_TRY(this->UpdateSize());
|
|
R_UNLESS(IStorage::IsOffsetAndSizeValid(offset, size), fs::ResultOutOfRange());
|
|
return this->base_file->OperateRange(dst, dst_size, op_id, offset, size, src, src_size);
|
|
default:
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
}
|
|
|
|
}
|