mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-30 07:42:13 +00:00
90 lines
3 KiB
C++
90 lines
3 KiB
C++
/*
|
|
* Copyright (c) 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 "ncm_fs_utils.hpp"
|
|
|
|
namespace ams::ncm::impl {
|
|
|
|
namespace {
|
|
|
|
constinit std::atomic<u32> g_mount_name_count;
|
|
|
|
}
|
|
|
|
bool PathView::HasPrefix(util::string_view prefix) const {
|
|
return m_path.compare(0, prefix.length(), prefix) == 0;
|
|
}
|
|
|
|
bool PathView::HasSuffix(util::string_view suffix) const {
|
|
return m_path.compare(m_path.length() - suffix.length(), suffix.length(), suffix) == 0;
|
|
}
|
|
|
|
util::string_view PathView::GetFileName() const {
|
|
auto pos = m_path.find_last_of("/");
|
|
return pos != util::string_view::npos ? m_path.substr(pos + 1) : m_path;
|
|
}
|
|
|
|
MountName CreateUniqueMountName() {
|
|
MountName name = {};
|
|
util::SNPrintf(name.str, sizeof(name.str), "@ncm%08x", g_mount_name_count.fetch_add(1));
|
|
return name;
|
|
}
|
|
|
|
RootDirectoryPath GetRootDirectoryPath(const MountName &mount_name) {
|
|
RootDirectoryPath path = {};
|
|
util::SNPrintf(path.str, sizeof(path.str), "%s:/", mount_name.str);
|
|
|
|
return path;
|
|
}
|
|
|
|
Result CopyFile(const char *dst_path, const char *src_path) {
|
|
fs::FileHandle src_file, dst_file;
|
|
|
|
/* Open the source file and get its size. */
|
|
R_TRY(fs::OpenFile(std::addressof(src_file), src_path, fs::OpenMode_Read));
|
|
ON_SCOPE_EXIT { fs::CloseFile(src_file); };
|
|
|
|
s64 file_size;
|
|
R_TRY(fs::GetFileSize(std::addressof(file_size), src_file));
|
|
|
|
/* Create the destination file. */
|
|
R_TRY(fs::CreateFile(dst_path, file_size));
|
|
|
|
/* Open the destination file. */
|
|
R_TRY(fs::OpenFile(std::addressof(dst_file), dst_path, fs::OpenMode_Write));
|
|
ON_SCOPE_EXIT { fs::CloseFile(dst_file); };
|
|
|
|
/* Allocate a buffer with which to copy. */
|
|
constexpr size_t BufferSize = 4_KB;
|
|
AutoBuffer buffer;
|
|
R_TRY(buffer.Initialize(BufferSize));
|
|
|
|
/* Repeatedly read until we've copied all the data. */
|
|
s64 offset = 0;
|
|
while (offset < file_size) {
|
|
const size_t read_size = std::min(static_cast<size_t>(file_size - offset), buffer.GetSize());
|
|
R_TRY(fs::ReadFile(src_file, offset, buffer.Get(), read_size));
|
|
R_TRY(fs::WriteFile(dst_file, offset, buffer.Get(), read_size, fs::WriteOption::None));
|
|
offset += read_size;
|
|
}
|
|
|
|
/* Flush the destination file. */
|
|
R_TRY(fs::FlushFile(dst_file));
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|