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Atmosphere/libraries/libstratosphere/source/fs/fsa/fs_user_file.cpp

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3.8 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>
#include "fs_file_accessor.hpp"
#include "fs_filesystem_accessor.hpp"
namespace ams::fs {
namespace {
ALWAYS_INLINE impl::FileAccessor *Get(FileHandle handle) {
return reinterpret_cast<impl::FileAccessor *>(handle.handle);
}
Result ReadFileImpl(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) {
R_TRY(Get(handle)->Read(out, offset, buffer, size, option));
return ResultSuccess();
}
}
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) {
size_t read_size;
AMS_FS_R_TRY(ReadFileImpl(std::addressof(read_size), handle, offset, buffer, size, option));
AMS_FS_R_UNLESS(read_size == size, fs::ResultOutOfRange());
return ResultSuccess();
}
Result ReadFile(FileHandle handle, s64 offset, void *buffer, size_t size) {
size_t read_size;
AMS_FS_R_TRY(ReadFileImpl(std::addressof(read_size), handle, offset, buffer, size, ReadOption()));
AMS_FS_R_UNLESS(read_size == size, fs::ResultOutOfRange());
return ResultSuccess();
}
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size, const fs::ReadOption &option) {
AMS_FS_R_TRY(ReadFileImpl(out, handle, offset, buffer, size, option));
return ResultSuccess();
}
Result ReadFile(size_t *out, FileHandle handle, s64 offset, void *buffer, size_t size) {
AMS_FS_R_TRY(ReadFileImpl(out, handle, offset, buffer, size, ReadOption()));
return ResultSuccess();
}
Result GetFileSize(s64 *out, FileHandle handle) {
AMS_FS_R_TRY(AMS_FS_IMPL_ACCESS_LOG(Get(handle)->GetSize(out), handle, AMS_FS_IMPL_ACCESS_LOG_FORMAT_GET_FILE_SIZE(out)));
return ResultSuccess();
}
Result FlushFile(FileHandle handle) {
AMS_FS_R_TRY(AMS_FS_IMPL_ACCESS_LOG(Get(handle)->Flush(), handle, AMS_FS_IMPL_ACCESS_LOG_FORMAT_NONE));
return ResultSuccess();
}
Result WriteFile(FileHandle handle, s64 offset, const void *buffer, size_t size, const fs::WriteOption &option) {
AMS_FS_R_TRY(AMS_FS_IMPL_ACCESS_LOG(Get(handle)->Write(offset, buffer, size, option), handle, AMS_FS_IMPL_ACCESS_LOG_FORMAT_WRITE_FILE(option), offset, size));
return ResultSuccess();
}
Result SetFileSize(FileHandle handle, s64 size) {
AMS_FS_R_TRY(AMS_FS_IMPL_ACCESS_LOG(Get(handle)->SetSize(size), handle, AMS_FS_IMPL_ACCESS_LOG_FORMAT_SIZE, size));
return ResultSuccess();
}
int GetFileOpenMode(FileHandle handle) {
const int mode = Get(handle)->GetOpenMode();
AMS_FS_IMPL_ACCESS_LOG(ResultSuccess(), handle, AMS_FS_IMPL_ACCESS_LOG_FORMAT_OPEN_MODE, static_cast<u32>(mode));
return mode;
}
void CloseFile(FileHandle handle) {
AMS_FS_IMPL_ACCESS_LOG((delete Get(handle), ResultSuccess()), handle, AMS_FS_IMPL_ACCESS_LOG_FORMAT_NONE);
}
Result QueryRange(QueryRangeInfo *out, FileHandle handle, s64 offset, s64 size) {
AMS_FS_R_TRY(Get(handle)->OperateRange(out, sizeof(*out), OperationId::QueryRange, offset, size, nullptr, 0));
return ResultSuccess();
}
}