mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-09-20 07:08:59 +00:00
97 lines
3.7 KiB
C++
97 lines
3.7 KiB
C++
/*
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* Copyright (c) 2018 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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#include <cstring>
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#include <cstdlib>
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#include <switch.h>
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#include "fs_dir_utils.hpp"
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#include "fs_ifile.hpp"
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Result FsDirUtils::CopyFile(IFileSystem *dst_fs, IFileSystem *src_fs, const FsPath &dst_parent_path, const FsPath &src_path, const FsDirectoryEntry *dir_ent, void *work_buf, size_t work_buf_size) {
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Result rc;
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std::unique_ptr<IFile> src_file;
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std::unique_ptr<IFile> dst_file;
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const u64 file_size = dir_ent->fileSize;
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/* Open source file for reading. */
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if (R_FAILED((rc = src_fs->OpenFile(src_file, src_path, OpenMode_Read)))) {
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return rc;
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}
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/* Create and open destination file. */
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{
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FsPath dst_path;
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if (static_cast<size_t>(snprintf(dst_path.str, sizeof(dst_path.str), "%s%s", dst_parent_path.str, src_path.str)) >= sizeof(dst_path)) {
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/* TODO: Error code? N aborts here. */
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std::abort();
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}
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if (R_FAILED((rc = dst_fs->CreateFile(dst_path, file_size)))) {
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return rc;
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}
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if (R_FAILED((rc = dst_fs->OpenFile(dst_file, dst_path, OpenMode_Write)))) {
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return rc;
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}
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}
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/* Read/Write work_buf_size chunks. */
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u64 offset = 0;
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while (offset < file_size) {
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u64 read_size;
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if (R_FAILED((rc = src_file->Read(&read_size, offset, work_buf, work_buf_size)))) {
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return rc;
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}
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if (R_FAILED((rc = dst_file->Write(offset, work_buf, read_size)))) {
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return rc;
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}
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offset += read_size;
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}
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return 0;
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}
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Result FsDirUtils::CopyDirectoryRecursively(IFileSystem *dst_fs, IFileSystem *src_fs, const FsPath &dst_path, const FsPath &src_path, void *work_buf, size_t work_buf_size) {
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FsPath work_path = dst_path;
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return IterateDirectoryRecursively(src_fs, src_path,
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[&](const FsPath &path, const FsDirectoryEntry *dir_ent) -> Result { /* On Enter Directory */
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/* Update path, create new dir. */
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strncat(work_path.str, dir_ent->name, sizeof(work_path) - strnlen(work_path.str, sizeof(work_path) - 1) - 1);
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strncat(work_path.str, "/", sizeof(work_path) - strnlen(work_path.str, sizeof(work_path) - 1) - 1);
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return dst_fs->CreateDirectory(work_path);
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},
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[&](const FsPath &path, const FsDirectoryEntry *dir_ent) -> Result { /* On Exit Directory */
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/* Check we have a parent directory. */
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const size_t work_path_len = strnlen(work_path.str, sizeof(work_path));
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if (work_path_len < 2) {
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return ResultFsInvalidPathFormat;
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}
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/* Find previous separator, add NULL terminator */
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char *p = &work_path.str[work_path_len - 2];
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while (*p != '/' && p > work_path.str) {
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p--;
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}
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p[1] = 0;
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return 0;
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},
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[&](const FsPath &path, const FsDirectoryEntry *dir_ent) -> Result { /* On File */
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/* Just copy the file to the new fs. */
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return CopyFile(dst_fs, src_fs, work_path, path, dir_ent, work_buf, work_buf_size);
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});
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} |