mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-25 11:46:05 +00:00
0c161a4c1b
* fs: implement FileHandleStorage * fs: merge FileHandleStorage into file_storage TU Co-authored-by: Michael Scire <SciresM@gmail.com>
164 lines
5.8 KiB
C++
164 lines
5.8 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/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
|
|
namespace ams::fs {
|
|
|
|
Result FileStorage::UpdateSize() {
|
|
R_SUCCEED_IF(this->size != InvalidSize);
|
|
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_SUCCEED_IF(size == 0);
|
|
|
|
/* 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_SUCCEED_IF(size == 0);
|
|
|
|
/* 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::ResultUnsupportedOperationInFileStorageA();
|
|
}
|
|
}
|
|
|
|
Result FileHandleStorage::UpdateSize() {
|
|
R_SUCCEED_IF(this->size != InvalidSize);
|
|
return GetFileSize(std::addressof(this->size), this->handle);
|
|
}
|
|
|
|
Result FileHandleStorage::Read(s64 offset, void *buffer, size_t size) {
|
|
/* Lock the mutex. */
|
|
std::scoped_lock lk(this->mutex);
|
|
|
|
/* Immediately succeed if there's nothing to read. */
|
|
R_SUCCEED_IF(size == 0);
|
|
|
|
/* 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 ReadFile(this->handle, offset, buffer, size, fs::ReadOption());
|
|
}
|
|
|
|
Result FileHandleStorage::Write(s64 offset, const void *buffer, size_t size) {
|
|
/* Lock the mutex. */
|
|
std::scoped_lock lk(this->mutex);
|
|
|
|
/* Immediately succeed if there's nothing to write. */
|
|
R_SUCCEED_IF(size == 0);
|
|
|
|
/* 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 WriteFile(this->handle, offset, buffer, size, fs::WriteOption());
|
|
}
|
|
|
|
Result FileHandleStorage::Flush() {
|
|
return FlushFile(this->handle);
|
|
}
|
|
|
|
Result FileHandleStorage::GetSize(s64 *out_size) {
|
|
R_TRY(this->UpdateSize());
|
|
*out_size = this->size;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result FileHandleStorage::SetSize(s64 size) {
|
|
this->size = InvalidSize;
|
|
return SetFileSize(this->handle, size);
|
|
}
|
|
|
|
Result FileHandleStorage::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::QueryRange:
|
|
/* Validate buffer and size. */
|
|
R_UNLESS(dst != nullptr, fs::ResultNullptrArgument());
|
|
R_UNLESS(dst_size == sizeof(QueryRangeInfo), fs::ResultInvalidSize());
|
|
|
|
return QueryRange(static_cast<QueryRangeInfo *>(dst), this->handle, offset, size);
|
|
default:
|
|
return fs::ResultUnsupportedOperationInFileStorageB();
|
|
}
|
|
}
|
|
|
|
}
|