mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-02 13:28:35 +00:00
809 lines
25 KiB
C++
809 lines
25 KiB
C++
/* Copyright (C) 2018-2020 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (vfs_implementation_uwp.cpp).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <retro_environment.h>
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#include <ppl.h>
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#include <ppltasks.h>
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#include <stdio.h>
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#include <wrl.h>
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#include <wrl/implements.h>
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#include <robuffer.h>
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#include <collection.h>
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#include <functional>
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#include <fileapifromapp.h>
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#include <AclAPI.h>
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#include <sddl.h>
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#include <io.h>
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#include <fcntl.h>
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#ifdef RARCH_INTERNAL
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#ifndef VFS_FRONTEND
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#define VFS_FRONTEND
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#endif
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#endif
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#include <vfs/vfs.h>
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#include <vfs/vfs_implementation.h>
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#include <libretro.h>
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#include <encodings/utf.h>
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#include <retro_miscellaneous.h>
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#include <file/file_path.h>
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#include <string/stdstring.h>
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#include <retro_environment.h>
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#include <uwp/uwp_async.h>
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#include <uwp/std_filesystem_compat.h>
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namespace
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{
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/* UWP deals with paths containing / instead of
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* \ way worse than normal Windows */
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/* and RetroArch may sometimes mix them
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* (e.g. on archive extraction) */
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static void windowsize_path(wchar_t* path)
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{
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if (path)
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{
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while (*path)
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{
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if (*path == '/')
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*path = '\\';
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++path;
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}
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}
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}
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}
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#ifdef VFS_FRONTEND
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struct retro_vfs_file_handle
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#else
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struct libretro_vfs_implementation_file
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#endif
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{
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int64_t size;
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uint64_t mappos;
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uint64_t mapsize;
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FILE* fp;
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HANDLE fh;
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char* buf;
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char* orig_path;
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uint8_t* mapped;
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int fd;
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unsigned hints;
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enum vfs_scheme scheme;
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};
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#define RFILE_HINT_UNBUFFERED (1 << 8)
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int retro_vfs_file_close_impl(libretro_vfs_implementation_file* stream)
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{
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if (!stream)
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return -1;
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if (stream->fp)
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fclose(stream->fp);
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if (stream->buf != NULL)
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{
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free(stream->buf);
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stream->buf = NULL;
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}
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if (stream->orig_path)
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free(stream->orig_path);
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free(stream);
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return 0;
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}
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int retro_vfs_file_error_impl(libretro_vfs_implementation_file* stream)
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{
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return ferror(stream->fp);
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}
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int64_t retro_vfs_file_size_impl(libretro_vfs_implementation_file* stream)
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{
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if (stream)
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return stream->size;
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return 0;
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}
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int64_t retro_vfs_file_truncate_impl(libretro_vfs_implementation_file* stream, int64_t length)
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{
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if (stream && _chsize(_fileno(stream->fp), length) == 0)
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return 0;
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return -1;
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}
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int64_t retro_vfs_file_tell_impl(libretro_vfs_implementation_file* stream)
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{
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if (!stream)
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return -1;
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if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
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return _ftelli64(stream->fp);
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if (lseek(stream->fd, 0, SEEK_CUR) < 0)
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return -1;
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return 0;
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}
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int64_t retro_vfs_file_seek_internal(
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libretro_vfs_implementation_file* stream,
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int64_t offset, int whence)
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{
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if (!stream)
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return -1;
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if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
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return _fseeki64(stream->fp, offset, whence);
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if (lseek(stream->fd, (off_t)offset, whence) < 0)
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return -1;
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return 0;
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}
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int64_t retro_vfs_file_seek_impl(libretro_vfs_implementation_file* stream,
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int64_t offset, int seek_position)
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{
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return retro_vfs_file_seek_internal(stream, offset, seek_position);
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}
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int64_t retro_vfs_file_read_impl(libretro_vfs_implementation_file* stream,
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void* s, uint64_t len)
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{
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if (!stream || (!stream->fp && stream->fh == INVALID_HANDLE_VALUE) || !s)
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return -1;
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if (stream->fh != INVALID_HANDLE_VALUE)
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{
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DWORD _bytes_read;
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ReadFile(stream->fh, (char*)s, len, &_bytes_read, NULL);
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return (int64_t)_bytes_read;
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}
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if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
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return fread(s, 1, (size_t)len, stream->fp);
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return read(stream->fd, s, (size_t)len);
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}
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int64_t retro_vfs_file_write_impl(libretro_vfs_implementation_file* stream, const void* s, uint64_t len)
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{
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if (!stream || (!stream->fp && stream->fh == INVALID_HANDLE_VALUE) || !s)
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return -1;
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if (stream->fh != INVALID_HANDLE_VALUE)
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{
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DWORD bytes_written;
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WriteFile(stream->fh, s, len, &bytes_written, NULL);
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return (int64_t)bytes_written;
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}
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if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
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return fwrite(s, 1, (size_t)len, stream->fp);
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return write(stream->fd, s, (size_t)len);
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}
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int retro_vfs_file_flush_impl(libretro_vfs_implementation_file* stream)
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{
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if (stream && fflush(stream->fp) == 0)
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return 0;
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return -1;
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}
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int retro_vfs_file_remove_impl(const char *path)
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{
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BOOL result;
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wchar_t *path_wide;
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if (!path || !*path)
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return -1;
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path_wide = utf8_to_utf16_string_alloc(path);
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windowsize_path(path_wide);
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/* Try Win32 first, this should work in AppData */
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result = DeleteFileFromAppW(path_wide);
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free(path_wide);
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if (result)
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return 0;
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return -1;
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}
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libretro_vfs_implementation_file* retro_vfs_file_open_impl(
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const char* path, unsigned mode, unsigned hints)
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{
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HANDLE file_handle;
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std::wstring path_wstring;
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DWORD desireAccess;
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DWORD creationDisposition;
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wchar_t *path_wide = NULL;
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int flags = 0;
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const char *mode_str = NULL;
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libretro_vfs_implementation_file* stream =
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(libretro_vfs_implementation_file*)
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malloc(sizeof(*stream));
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if (!stream)
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return NULL;
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stream->fd = 0;
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stream->hints = hints;
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stream->size = 0;
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stream->buf = NULL;
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stream->fp = NULL;
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stream->fh = 0;
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stream->orig_path = NULL;
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stream->mappos = 0;
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stream->mapsize = 0;
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stream->mapped = NULL;
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stream->scheme = VFS_SCHEME_NONE;
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#ifdef VFS_FRONTEND
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if ( path
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&& path[0] == 'v'
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&& path[1] == 'f'
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&& path[2] == 's'
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&& path[3] == 'o'
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&& path[4] == 'n'
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&& path[5] == 'l'
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&& path[6] == 'y'
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&& path[7] == ':'
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&& path[8] == '/'
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&& path[9] == '/')
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path += sizeof("vfsonly://")-1;
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#endif
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path_wide = utf8_to_utf16_string_alloc(path);
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windowsize_path(path_wide);
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path_wstring = path_wide;
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free(path_wide);
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for (;;)
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{
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size_t p = path_wstring.find(L"\\\\");
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if (p == std::wstring::npos)
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break;
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path_wstring.replace(p, 2, L"\\");
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}
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path_wstring = L"\\\\?\\" + path_wstring;
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stream->orig_path = strdup(path);
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stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS;
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switch (mode)
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{
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case RETRO_VFS_FILE_ACCESS_READ:
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mode_str = "rb";
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flags = O_RDONLY | O_BINARY;
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break;
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case RETRO_VFS_FILE_ACCESS_WRITE:
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mode_str = "wb";
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flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY;
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break;
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case RETRO_VFS_FILE_ACCESS_READ_WRITE:
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mode_str = "w+b";
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flags = O_RDWR | O_CREAT | O_TRUNC | O_BINARY;
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break;
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case RETRO_VFS_FILE_ACCESS_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING:
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case RETRO_VFS_FILE_ACCESS_READ_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING:
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mode_str = "r+b";
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flags = O_RDWR | O_BINARY;
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break;
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default:
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goto error;
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}
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switch (mode)
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{
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case RETRO_VFS_FILE_ACCESS_READ_WRITE:
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desireAccess = GENERIC_READ | GENERIC_WRITE;
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break;
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case RETRO_VFS_FILE_ACCESS_WRITE:
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desireAccess = GENERIC_WRITE;
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break;
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case RETRO_VFS_FILE_ACCESS_READ:
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desireAccess = GENERIC_READ;
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break;
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}
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if (mode == RETRO_VFS_FILE_ACCESS_READ)
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creationDisposition = OPEN_EXISTING;
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else
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creationDisposition = (mode & RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING) != 0
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? OPEN_ALWAYS
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: CREATE_ALWAYS;
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if ((file_handle = CreateFile2FromAppW(path_wstring.data(), desireAccess,
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FILE_SHARE_READ, creationDisposition, NULL)) == INVALID_HANDLE_VALUE)
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goto error;
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stream->fh = file_handle;
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if ((stream->fd = _open_osfhandle((uint64)stream->fh, flags)) == -1)
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goto error;
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{
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FILE *fp = _fdopen(stream->fd, mode_str);
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if (!fp)
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goto error;
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stream->fp = fp;
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}
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/* Regarding setvbuf:
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*
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* https://www.freebsd.org/cgi/man.cgi?query=setvbuf&apropos=0&sektion=0&manpath=FreeBSD+11.1-RELEASE&arch=default&format=html
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*
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* If the size argument is not zero but buf is NULL,
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* a buffer of the given size will be allocated immediately, and
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* released on close. This is an extension to ANSI C.
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*
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* Since C89 does not support specifying a NULL buffer
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* with a non-zero size, we create and track our own buffer for it.
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*/
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/* TODO: this is only useful for a few platforms,
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* find which and add ifdef */
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if (stream->scheme != VFS_SCHEME_CDROM)
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{
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stream->buf = (char*)calloc(1, 0x4000);
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if (stream->fp)
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setvbuf(stream->fp, stream->buf, _IOFBF, 0x4000);
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}
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retro_vfs_file_seek_internal(stream, 0, SEEK_SET);
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retro_vfs_file_seek_internal(stream, 0, SEEK_END);
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stream->size = retro_vfs_file_tell_impl(stream);
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retro_vfs_file_seek_internal(stream, 0, SEEK_SET);
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return stream;
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error:
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retro_vfs_file_close_impl(stream);
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return NULL;
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}
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static int uwp_mkdir_impl(std::experimental::filesystem::path dir)
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{
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/*I feel like this should create the directory recursively but the existing implementation does not so this update won't
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*I put in the work but I just commented out the stuff you would need */
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WIN32_FILE_ATTRIBUTE_DATA lpFileInfo;
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bool parent_dir_exists = false;
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if (dir.empty())
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return -1;
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/* Check if file attributes can be gotten successfully */
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if (GetFileAttributesExFromAppW(dir.parent_path().wstring().c_str(), GetFileExInfoStandard, &lpFileInfo))
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{
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/* Check that the files attributes are not null or empty */
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if (lpFileInfo.dwFileAttributes != INVALID_FILE_ATTRIBUTES && lpFileInfo.dwFileAttributes != 0)
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{
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if (lpFileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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parent_dir_exists = true;
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}
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}
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if (!parent_dir_exists)
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{
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/* Try to create parent dir */
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int success = uwp_mkdir_impl(dir.parent_path());
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if (success != 0 && success != -2)
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return success;
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}
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/* Try Win32 first, this should work in AppData */
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if (CreateDirectoryFromAppW(dir.wstring().c_str(), NULL))
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return 0;
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if (GetLastError() == ERROR_ALREADY_EXISTS)
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return -2;
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return -1;
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}
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int retro_vfs_mkdir_impl(const char* dir)
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{
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return uwp_mkdir_impl(std::filesystem::path(dir));
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}
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/* The first run parameter is used to avoid error checking
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* when doing recursion.
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* Unlike the initial implementation, this can move folders
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* even empty ones when you want to move a directory structure.
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*
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* This will fail even if a single file cannot be moved.
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*/
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static int uwp_move_path(
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std::filesystem::path old_path,
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std::filesystem::path new_path,
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bool firstrun)
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{
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if (old_path.empty() || new_path.empty())
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return -1;
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if (firstrun)
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{
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WIN32_FILE_ATTRIBUTE_DATA lpFileInfo, targetfileinfo;
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bool parent_dir_exists = false;
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/* Make sure that parent path exists */
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if (GetFileAttributesExFromAppW(
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new_path.parent_path().wstring().c_str(),
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GetFileExInfoStandard, &lpFileInfo))
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{
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/* Check that the files attributes are not null or empty */
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if ( lpFileInfo.dwFileAttributes
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!= INVALID_FILE_ATTRIBUTES
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&& lpFileInfo.dwFileAttributes != 0)
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{
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/* Parent path doesn't exist, so we gotta create it */
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if (!(lpFileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
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uwp_mkdir_impl(new_path.parent_path());
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}
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}
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/* Make sure that source path exists */
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if (GetFileAttributesExFromAppW(old_path.wstring().c_str(), GetFileExInfoStandard, &lpFileInfo))
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{
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/* Check that the files attributes are not null or empty */
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if ( lpFileInfo.dwFileAttributes != INVALID_FILE_ATTRIBUTES
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&& lpFileInfo.dwFileAttributes != 0)
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{
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/* Check if source path is a dir */
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if (lpFileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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{
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int result;
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/* create the target dir */
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CreateDirectoryFromAppW(new_path.wstring().c_str(), NULL);
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/* Call move function again but with first run disabled in
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* order to move the folder */
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if ((result = uwp_move_path(old_path, new_path, false)) != 0)
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return result;
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}
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else
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{
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/* The file that we want to move exists so we can copy it now
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* check if target file already exists. */
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if (GetFileAttributesExFromAppW(
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new_path.wstring().c_str(),
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GetFileExInfoStandard,
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&targetfileinfo))
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{
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if (
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targetfileinfo.dwFileAttributes != INVALID_FILE_ATTRIBUTES
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&& targetfileinfo.dwFileAttributes != 0
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&& (!(targetfileinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)))
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{
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if (DeleteFileFromAppW(new_path.wstring().c_str()))
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return -1;
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}
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}
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if (!MoveFileFromAppW(old_path.wstring().c_str(),
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new_path.wstring().c_str()))
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return -1;
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/* Set ACL */
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uwp_set_acl(new_path.wstring().c_str(), L"S-1-15-2-1");
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}
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}
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}
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}
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else
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{
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HANDLE searchResults;
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WIN32_FIND_DATA findDataResult;
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/* We are bypassing error checking and moving a dir.
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* First we have to get a list of files in the dir. */
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wchar_t* filteredPath = wcsdup(old_path.wstring().c_str());
|
|
wcscat_s(filteredPath, sizeof(L"\\*.*"), L"\\*.*");
|
|
searchResults = FindFirstFileExFromAppW(
|
|
filteredPath, FindExInfoBasic, &findDataResult,
|
|
FindExSearchNameMatch, NULL, FIND_FIRST_EX_LARGE_FETCH);
|
|
|
|
if (searchResults != INVALID_HANDLE_VALUE)
|
|
{
|
|
bool fail = false;
|
|
do
|
|
{
|
|
if ( wcscmp(findDataResult.cFileName, L".") != 0
|
|
&& wcscmp(findDataResult.cFileName, L"..") != 0)
|
|
{
|
|
std::filesystem::path temp_old = old_path;
|
|
std::filesystem::path temp_new = new_path;
|
|
temp_old /= findDataResult.cFileName;
|
|
temp_new /= findDataResult.cFileName;
|
|
if ( findDataResult.dwFileAttributes
|
|
& FILE_ATTRIBUTE_DIRECTORY)
|
|
{
|
|
CreateDirectoryFromAppW(temp_new.wstring().c_str(), NULL);
|
|
if (uwp_move_path(temp_old, temp_new, false) != 0)
|
|
fail = true;
|
|
}
|
|
else
|
|
{
|
|
WIN32_FILE_ATTRIBUTE_DATA targetfileinfo;
|
|
/* The file that we want to move exists so we can copy
|
|
* it now.
|
|
* Check if target file already exists. */
|
|
if (GetFileAttributesExFromAppW(temp_new.wstring().c_str(),
|
|
GetFileExInfoStandard, &targetfileinfo))
|
|
{
|
|
if (
|
|
(targetfileinfo.dwFileAttributes !=
|
|
INVALID_FILE_ATTRIBUTES)
|
|
&& (targetfileinfo.dwFileAttributes != 0)
|
|
&& (!(targetfileinfo.dwFileAttributes
|
|
& FILE_ATTRIBUTE_DIRECTORY)))
|
|
{
|
|
if (DeleteFileFromAppW(temp_new.wstring().c_str()))
|
|
fail = true;
|
|
}
|
|
}
|
|
|
|
if (!MoveFileFromAppW(temp_old.wstring().c_str(),
|
|
temp_new.wstring().c_str()))
|
|
fail = true;
|
|
/* Set ACL - this step sucks or at least used to
|
|
* before I made a whole function
|
|
* Don't know if we actually "need" to set the ACL
|
|
* though */
|
|
uwp_set_acl(temp_new.wstring().c_str(), L"S-1-15-2-1");
|
|
}
|
|
}
|
|
} while (FindNextFile(searchResults, &findDataResult));
|
|
FindClose(searchResults);
|
|
if (fail)
|
|
return -1;
|
|
}
|
|
free(filteredPath);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* C doesn't support default arguments so we wrap it up in a shell to enable
|
|
* us to use default arguments.
|
|
* Default arguments mean that we can do better recursion */
|
|
int retro_vfs_file_rename_impl(const char* old_path, const char* new_path)
|
|
{
|
|
return uwp_move_path(std::filesystem::path(old_path),
|
|
std::filesystem::path(old_path), true);
|
|
}
|
|
|
|
const char *retro_vfs_file_get_path_impl(libretro_vfs_implementation_file *stream)
|
|
{
|
|
/* Should never happen, do something noisy so caller can be fixed */
|
|
if (!stream)
|
|
abort();
|
|
return stream->orig_path;
|
|
}
|
|
|
|
int retro_vfs_stat_impl(const char *path, int32_t *size)
|
|
{
|
|
wchar_t *path_wide;
|
|
_WIN32_FILE_ATTRIBUTE_DATA attribdata;
|
|
|
|
if (!path || !*path)
|
|
return 0;
|
|
|
|
path_wide = utf8_to_utf16_string_alloc(path);
|
|
windowsize_path(path_wide);
|
|
|
|
/* Try Win32 first, this should work in AppData */
|
|
if (GetFileAttributesExFromAppW(path_wide,
|
|
GetFileExInfoStandard, &attribdata))
|
|
{
|
|
if (attribdata.dwFileAttributes != INVALID_FILE_ATTRIBUTES)
|
|
{
|
|
if (!(attribdata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
|
|
{
|
|
LARGE_INTEGER sz;
|
|
if (size)
|
|
{
|
|
sz.HighPart = attribdata.nFileSizeHigh;
|
|
sz.LowPart = attribdata.nFileSizeLow;
|
|
*size = sz.QuadPart;
|
|
}
|
|
}
|
|
free(path_wide);
|
|
return (attribdata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
? RETRO_VFS_STAT_IS_VALID | RETRO_VFS_STAT_IS_DIRECTORY
|
|
: RETRO_VFS_STAT_IS_VALID;
|
|
}
|
|
}
|
|
free(path_wide);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef VFS_FRONTEND
|
|
struct retro_vfs_dir_handle
|
|
#else
|
|
struct libretro_vfs_implementation_dir
|
|
#endif
|
|
{
|
|
char* orig_path;
|
|
WIN32_FIND_DATAW entry;
|
|
HANDLE directory;
|
|
bool next;
|
|
char path[PATH_MAX_LENGTH];
|
|
};
|
|
|
|
libretro_vfs_implementation_dir* retro_vfs_opendir_impl(
|
|
const char* name, bool include_hidden)
|
|
{
|
|
char path_buf[1024];
|
|
size_t copied = 0;
|
|
wchar_t* path_wide = NULL;
|
|
libretro_vfs_implementation_dir* rdir;
|
|
|
|
/* Reject NULL or empty string paths*/
|
|
if (!name || (*name == 0))
|
|
return NULL;
|
|
|
|
/*Allocate RDIR struct. Tidied later with retro_closedir*/
|
|
if (!(rdir = (libretro_vfs_implementation_dir*)calloc(1, sizeof(*rdir))))
|
|
return NULL;
|
|
|
|
rdir->orig_path = strdup(name);
|
|
|
|
copied = strlcpy(path_buf, name, sizeof(path_buf));
|
|
|
|
/* Non-NT platforms don't like extra slashes in the path */
|
|
if (path_buf[copied - 1] != '\\')
|
|
path_buf[copied++] = '\\';
|
|
|
|
path_buf[copied] = '*';
|
|
path_buf[copied + 1] = '\0';
|
|
|
|
path_wide = utf8_to_utf16_string_alloc(path_buf);
|
|
rdir->directory = FindFirstFileExFromAppW(
|
|
path_wide, FindExInfoStandard, &rdir->entry,
|
|
FindExSearchNameMatch, NULL, FIND_FIRST_EX_LARGE_FETCH);
|
|
|
|
if (path_wide)
|
|
free(path_wide);
|
|
|
|
if (include_hidden)
|
|
rdir->entry.dwFileAttributes |= FILE_ATTRIBUTE_HIDDEN;
|
|
else
|
|
rdir->entry.dwFileAttributes &= ~FILE_ATTRIBUTE_HIDDEN;
|
|
|
|
if (rdir->directory && rdir != INVALID_HANDLE_VALUE)
|
|
return rdir;
|
|
|
|
retro_vfs_closedir_impl(rdir);
|
|
return NULL;
|
|
}
|
|
|
|
bool retro_vfs_readdir_impl(libretro_vfs_implementation_dir* rdir)
|
|
{
|
|
if (rdir->next)
|
|
return (FindNextFileW(rdir->directory, &rdir->entry) != 0);
|
|
|
|
rdir->next = true;
|
|
return (rdir->directory != INVALID_HANDLE_VALUE);
|
|
}
|
|
|
|
const char* retro_vfs_dirent_get_name_impl(libretro_vfs_implementation_dir* rdir)
|
|
{
|
|
char* name = utf16_to_utf8_string_alloc(rdir->entry.cFileName);
|
|
memset(rdir->entry.cFileName, 0, sizeof(rdir->entry.cFileName));
|
|
strlcpy((char*)rdir->entry.cFileName, name, sizeof(rdir->entry.cFileName));
|
|
if (name)
|
|
free(name);
|
|
return (char*)rdir->entry.cFileName;
|
|
}
|
|
|
|
bool retro_vfs_dirent_is_dir_impl(libretro_vfs_implementation_dir* rdir)
|
|
{
|
|
const WIN32_FIND_DATA* entry = (const WIN32_FIND_DATA*)&rdir->entry;
|
|
return entry->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
|
|
}
|
|
|
|
int retro_vfs_closedir_impl(libretro_vfs_implementation_dir* rdir)
|
|
{
|
|
if (!rdir)
|
|
return -1;
|
|
|
|
if (rdir->directory != INVALID_HANDLE_VALUE)
|
|
FindClose(rdir->directory);
|
|
|
|
if (rdir->orig_path)
|
|
free(rdir->orig_path);
|
|
free(rdir);
|
|
return 0;
|
|
}
|
|
|
|
void uwp_set_acl(const wchar_t* path, const wchar_t* AccessString)
|
|
{
|
|
PSECURITY_DESCRIPTOR SecurityDescriptor = NULL;
|
|
EXPLICIT_ACCESSW ExplicitAccess = { 0 };
|
|
ACL* AccessControlCurrent = NULL;
|
|
ACL* AccessControlNew = NULL;
|
|
SECURITY_INFORMATION SecurityInfo = DACL_SECURITY_INFORMATION;
|
|
PSID SecurityIdentifier = NULL;
|
|
HANDLE original_file = CreateFileFromAppW(path,
|
|
GENERIC_READ | GENERIC_WRITE | WRITE_DAC,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
NULL, OPEN_EXISTING, 0, NULL);
|
|
|
|
if (original_file != INVALID_HANDLE_VALUE)
|
|
{
|
|
if (
|
|
GetSecurityInfo(
|
|
original_file,
|
|
SE_FILE_OBJECT,
|
|
DACL_SECURITY_INFORMATION,
|
|
NULL,
|
|
NULL,
|
|
&AccessControlCurrent,
|
|
NULL,
|
|
&SecurityDescriptor
|
|
) == ERROR_SUCCESS
|
|
)
|
|
{
|
|
ConvertStringSidToSidW(AccessString, &SecurityIdentifier);
|
|
if (SecurityIdentifier)
|
|
{
|
|
ExplicitAccess.grfAccessPermissions= GENERIC_READ | GENERIC_EXECUTE | GENERIC_WRITE;
|
|
ExplicitAccess.grfAccessMode = SET_ACCESS;
|
|
ExplicitAccess.grfInheritance = SUB_CONTAINERS_AND_OBJECTS_INHERIT;
|
|
ExplicitAccess.Trustee.TrusteeForm = TRUSTEE_IS_SID;
|
|
ExplicitAccess.Trustee.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
|
|
ExplicitAccess.Trustee.ptstrName = reinterpret_cast<wchar_t*>(SecurityIdentifier);
|
|
|
|
if (
|
|
SetEntriesInAclW(
|
|
1,
|
|
&ExplicitAccess,
|
|
AccessControlCurrent,
|
|
&AccessControlNew
|
|
) == ERROR_SUCCESS
|
|
)
|
|
SetSecurityInfo(
|
|
original_file,
|
|
SE_FILE_OBJECT,
|
|
SecurityInfo,
|
|
NULL,
|
|
NULL,
|
|
AccessControlNew,
|
|
NULL
|
|
);
|
|
}
|
|
}
|
|
if (SecurityDescriptor)
|
|
LocalFree(reinterpret_cast<HLOCAL>(SecurityDescriptor));
|
|
if (AccessControlNew)
|
|
LocalFree(reinterpret_cast<HLOCAL>(AccessControlNew));
|
|
CloseHandle(original_file);
|
|
}
|
|
}
|