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tag/TagHandler: pass by reference

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This commit is contained in:
Max Kellermann
2016-02-23 10:10:13 +01:00
parent 7623c1c5cb
commit 73307bf2e7
37 changed files with 100 additions and 104 deletions
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6
src/decoder/plugins/AdPlugDecoderPlugin.cxx
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@@ -89,7 +89,7 @@ adplug_file_decode(Decoder &decoder, Path path_fs)
static void
adplug_scan_tag(TagType type, const std::string &value,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
if (!value.empty())
tag_handler_invoke_tag(handler, handler_ctx,
@@ -98,7 +98,7 @@ adplug_scan_tag(TagType type, const std::string &value,
static bool
adplug_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
CEmuopl opl(sample_rate, true, true);
opl.init();
@@ -110,7 +110,7 @@ adplug_scan_file(Path path_fs,
tag_handler_invoke_duration(handler, handler_ctx,
SongTime::FromMS(player->songlength()));
if (handler->tag != nullptr) {
if (handler.tag != nullptr) {
adplug_scan_tag(TAG_TITLE, player->gettitle(),
handler, handler_ctx);
adplug_scan_tag(TAG_ARTIST, player->getauthor(),

2
src/decoder/plugins/AudiofileDecoderPlugin.cxx
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@@ -263,7 +263,7 @@ audiofile_get_duration(InputStream &is)
static bool
audiofile_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const auto duration = audiofile_get_duration(is);
if (duration.IsNegative())

2
src/decoder/plugins/DsdLib.cxx
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@@ -106,7 +106,7 @@ dsdlib_valid_freq(uint32_t samplefreq)
#ifdef ENABLE_ID3TAG
void
dsdlib_tag_id3(InputStream &is,
const TagHandler *handler,
const TagHandler &handler,
void *handler_ctx, offset_type tagoffset)
{
if (tagoffset == 0 || !is.KnownSize())

2
src/decoder/plugins/DsdLib.hxx
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@@ -81,7 +81,7 @@ dsdlib_valid_freq(uint32_t samplefreq);
*/
void
dsdlib_tag_id3(InputStream &is,
const TagHandler *handler,
const TagHandler &handler,
void *handler_ctx, offset_type tagoffset);
#endif

6
src/decoder/plugins/DsdiffDecoderPlugin.cxx
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@@ -187,7 +187,7 @@ dsdiff_read_prop(Decoder *decoder, InputStream &is,
static void
dsdiff_handle_native_tag(InputStream &is,
const TagHandler *handler,
const TagHandler &handler,
void *handler_ctx, offset_type tagoffset,
TagType type)
{
@@ -229,7 +229,7 @@ static bool
dsdiff_read_metadata_extra(Decoder *decoder, InputStream &is,
DsdiffMetaData *metadata,
DsdiffChunkHeader *chunk_header,
const TagHandler *handler,
const TagHandler &handler,
void *handler_ctx)
{
@@ -456,7 +456,7 @@ dsdiff_stream_decode(Decoder &decoder, InputStream &is)
static bool
dsdiff_scan_stream(InputStream &is,
gcc_unused const TagHandler *handler,
gcc_unused const TagHandler &handler,
gcc_unused void *handler_ctx)
{
DsdiffMetaData metadata;

2
src/decoder/plugins/DsfDecoderPlugin.cxx
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@@ -331,7 +331,7 @@ dsf_stream_decode(Decoder &decoder, InputStream &is)
static bool
dsf_scan_stream(InputStream &is,
gcc_unused const TagHandler *handler,
gcc_unused const TagHandler &handler,
gcc_unused void *handler_ctx)
{
/* check DSF metadata */

2
src/decoder/plugins/FaadDecoderPlugin.cxx
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@@ -419,7 +419,7 @@ faad_stream_decode(Decoder &mpd_decoder, InputStream &is)
static bool
faad_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
auto result = faad_get_file_time(is);
if (!result.first)

10
src/decoder/plugins/FfmpegDecoderPlugin.cxx
View File

@@ -392,7 +392,7 @@ static void
FfmpegScanMetadata(const AVStream &stream,
const TagHandler &handler, void *handler_ctx)
{
FfmpegScanDictionary(stream.metadata, &handler, handler_ctx);
FfmpegScanDictionary(stream.metadata, handler, handler_ctx);
}
static void
@@ -401,7 +401,7 @@ FfmpegScanMetadata(const AVFormatContext &format_context, int audio_stream,
{
assert(audio_stream >= 0);
FfmpegScanDictionary(format_context.metadata, &handler, handler_ctx);
FfmpegScanDictionary(format_context.metadata, handler, handler_ctx);
FfmpegScanMetadata(*format_context.streams[audio_stream],
handler, handler_ctx);
}
@@ -627,7 +627,7 @@ FfmpegScanStream(AVFormatContext &format_context,
const AVStream &stream = *format_context.streams[audio_stream];
if (stream.duration != (int64_t)AV_NOPTS_VALUE)
tag_handler_invoke_duration(&handler, handler_ctx,
tag_handler_invoke_duration(handler, handler_ctx,
FromFfmpegTime(stream.duration,
stream.time_base));
@@ -638,7 +638,7 @@ FfmpegScanStream(AVFormatContext &format_context,
static bool
ffmpeg_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
AVInputFormat *input_format = ffmpeg_probe(nullptr, is);
if (input_format == nullptr)
@@ -653,7 +653,7 @@ ffmpeg_scan_stream(InputStream &is,
if (f == nullptr)
return false;
bool result = FfmpegScanStream(*f, *handler, handler_ctx);
bool result = FfmpegScanStream(*f, handler, handler_ctx);
avformat_close_input(&f);
return result;
}

10
src/decoder/plugins/FfmpegMetaData.cxx
View File

@@ -42,7 +42,7 @@ static constexpr struct tag_table ffmpeg_tags[] = {
static void
FfmpegScanTag(TagType type,
AVDictionary *m, const char *name,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
AVDictionaryEntry *mt = nullptr;
@@ -53,7 +53,7 @@ FfmpegScanTag(TagType type,
static void
FfmpegScanPairs(AVDictionary *dict,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
AVDictionaryEntry *i = nullptr;
@@ -64,9 +64,9 @@ FfmpegScanPairs(AVDictionary *dict,
void
FfmpegScanDictionary(AVDictionary *dict,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
if (handler->tag != nullptr) {
if (handler.tag != nullptr) {
for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i)
FfmpegScanTag(TagType(i), dict, tag_item_names[i],
handler, handler_ctx);
@@ -77,6 +77,6 @@ FfmpegScanDictionary(AVDictionary *dict,
handler, handler_ctx);
}
if (handler->pair != nullptr)
if (handler.pair != nullptr)
FfmpegScanPairs(dict, handler, handler_ctx);
}

2
src/decoder/plugins/FfmpegMetaData.hxx
View File

@@ -25,6 +25,6 @@ struct TagHandler;
void
FfmpegScanDictionary(AVDictionary *dict,
const TagHandler *handler, void *handler_ctx);
const TagHandler &handler, void *handler_ctx);
#endif

8
src/decoder/plugins/FlacDecoderPlugin.cxx
View File

@@ -82,7 +82,7 @@ flac_write_cb(const FLAC__StreamDecoder *dec, const FLAC__Frame *frame,
static bool
flac_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
FlacMetadataChain chain;
if (!chain.Read(NarrowPath(path_fs))) {
@@ -98,7 +98,7 @@ flac_scan_file(Path path_fs,
static bool
flac_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
FlacMetadataChain chain;
if (!chain.Read(is)) {
@@ -299,7 +299,7 @@ oggflac_init(gcc_unused const ConfigBlock &block)
static bool
oggflac_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
FlacMetadataChain chain;
if (!chain.ReadOgg(NarrowPath(path_fs))) {
@@ -315,7 +315,7 @@ oggflac_scan_file(Path path_fs,
static bool
oggflac_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
FlacMetadataChain chain;
if (!chain.ReadOgg(is)) {

14
src/decoder/plugins/FlacMetadata.cxx
View File

@@ -80,7 +80,7 @@ flac_comment_value(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
static bool
flac_copy_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
const char *name, TagType tag_type,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const char *value = flac_comment_value(entry, name);
if (value != nullptr) {
@@ -93,9 +93,9 @@ flac_copy_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
static void
flac_scan_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
if (handler->pair != nullptr) {
if (handler.pair != nullptr) {
const char *comment = (const char *)entry->entry;
const DivideString split(comment, '=');
if (split.IsDefined() && !split.IsEmpty())
@@ -118,7 +118,7 @@ flac_scan_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
static void
flac_scan_comments(const FLAC__StreamMetadata_VorbisComment *comment,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
for (unsigned i = 0; i < comment->num_comments; ++i)
flac_scan_comment(&comment->comments[i],
@@ -137,7 +137,7 @@ flac_duration(const FLAC__StreamMetadata_StreamInfo *stream_info)
void
flac_scan_metadata(const FLAC__StreamMetadata *block,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
switch (block->type) {
case FLAC__METADATA_TYPE_VORBIS_COMMENT:
@@ -160,12 +160,12 @@ Tag
flac_vorbis_comments_to_tag(const FLAC__StreamMetadata_VorbisComment *comment)
{
TagBuilder tag_builder;
flac_scan_comments(comment, &add_tag_handler, &tag_builder);
flac_scan_comments(comment, add_tag_handler, &tag_builder);
return tag_builder.Commit();
}
void
FlacMetadataChain::Scan(const TagHandler *handler, void *handler_ctx)
FlacMetadataChain::Scan(const TagHandler &handler, void *handler_ctx)
{
FLACMetadataIterator iterator(*this);

4
src/decoder/plugins/FlacMetadata.hxx
View File

@@ -82,7 +82,7 @@ public:
return FLAC__Metadata_ChainStatusString[GetStatus()];
}
void Scan(const TagHandler *handler, void *handler_ctx);
void Scan(const TagHandler &handler, void *handler_ctx);
};
class FLACMetadataIterator {
@@ -126,6 +126,6 @@ flac_vorbis_comments_to_tag(const FLAC__StreamMetadata_VorbisComment *comment);
void
flac_scan_metadata(const FLAC__StreamMetadata *block,
const TagHandler *handler, void *handler_ctx);
const TagHandler &handler, void *handler_ctx);
#endif

2
src/decoder/plugins/FluidsynthDecoderPlugin.cxx
View File

@@ -201,7 +201,7 @@ fluidsynth_file_decode(Decoder &decoder, Path path_fs)
static bool
fluidsynth_scan_file(Path path_fs,
gcc_unused const TagHandler *handler,
gcc_unused const TagHandler &handler,
gcc_unused void *handler_ctx)
{
return fluid_is_midifile(path_fs.c_str());

6
src/decoder/plugins/GmeDecoderPlugin.cxx
View File

@@ -215,7 +215,7 @@ gme_file_decode(Decoder &decoder, Path path_fs)
static void
ScanGmeInfo(const gme_info_t &info, unsigned song_num, int track_count,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
if (info.play_length > 0)
tag_handler_invoke_duration(handler, handler_ctx,
@@ -255,7 +255,7 @@ ScanGmeInfo(const gme_info_t &info, unsigned song_num, int track_count,
static bool
ScanMusicEmu(Music_Emu *emu, unsigned song_num,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
gme_info_t *ti;
const char *gme_err = gme_track_info(emu, &ti, song_num);
@@ -275,7 +275,7 @@ ScanMusicEmu(Music_Emu *emu, unsigned song_num,
static bool
gme_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const auto container = ParseContainerPath(path_fs);

2
src/decoder/plugins/MadDecoderPlugin.cxx
View File

@@ -1083,7 +1083,7 @@ mp3_decode(Decoder &decoder, InputStream &input_stream)
static bool
mad_decoder_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const auto result = mad_decoder_total_file_time(is);
if (!result.first)

2
src/decoder/plugins/MikmodDecoderPlugin.cxx
View File

@@ -187,7 +187,7 @@ mikmod_decoder_file_decode(Decoder &decoder, Path path_fs)
static bool
mikmod_decoder_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
/* deconstify the path because libmikmod wants a non-const
string pointer */

2
src/decoder/plugins/ModplugDecoderPlugin.cxx
View File

@@ -177,7 +177,7 @@ mod_decode(Decoder &decoder, InputStream &is)
static bool
modplug_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
ModPlugFile *f = LoadModPlugFile(nullptr, is);
if (f == nullptr)

2
src/decoder/plugins/MpcdecDecoderPlugin.cxx
View File

@@ -249,7 +249,7 @@ mpcdec_get_file_duration(InputStream &is)
static bool
mpcdec_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const auto duration = mpcdec_get_file_duration(is);
if (duration.IsNegative())

2
src/decoder/plugins/Mpg123DecoderPlugin.cxx
View File

@@ -287,7 +287,7 @@ mpd_mpg123_file_decode(Decoder &decoder, Path path_fs)
static bool
mpd_mpg123_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
int error;
mpg123_handle *const handle = mpg123_new(nullptr, &error);

4
src/decoder/plugins/OpusDecoderPlugin.cxx
View File

@@ -332,7 +332,7 @@ MPDOpusDecoder::HandleTags(const ogg_packet &packet)
DecoderCommand cmd;
if (ScanOpusTags(packet.packet, packet.bytes,
&rgi,
&add_tag_handler, &tag_builder) &&
add_tag_handler, &tag_builder) &&
!tag_builder.IsEmpty()) {
decoder_replay_gain(decoder, &rgi);
@@ -433,7 +433,7 @@ mpd_opus_stream_decode(Decoder &decoder,
static bool
mpd_opus_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
OggSyncState oy(is);

8
src/decoder/plugins/OpusTags.cxx
View File

@@ -43,7 +43,7 @@ ParseOpusTagName(const char *name)
static void
ScanOneOpusTag(const char *name, const char *value,
ReplayGainInfo *rgi,
const TagHandler *handler, void *ctx)
const TagHandler &handler, void *ctx)
{
if (rgi != nullptr && strcmp(name, "R128_TRACK_GAIN") == 0) {
/* R128_TRACK_GAIN is a Q7.8 fixed point number in
@@ -57,7 +57,7 @@ ScanOneOpusTag(const char *name, const char *value,
tag_handler_invoke_pair(handler, ctx, name, value);
if (handler->tag != nullptr) {
if (handler.tag != nullptr) {
TagType t = ParseOpusTagName(name);
if (t != TAG_NUM_OF_ITEM_TYPES)
tag_handler_invoke_tag(handler, ctx, t, value);
@@ -67,13 +67,13 @@ ScanOneOpusTag(const char *name, const char *value,
bool
ScanOpusTags(const void *data, size_t size,
ReplayGainInfo *rgi,
const TagHandler *handler, void *ctx)
const TagHandler &handler, void *ctx)
{
OpusReader r(data, size);
if (!r.Expect("OpusTags", 8))
return false;
if (handler->pair == nullptr && handler->tag == nullptr)
if (handler.pair == nullptr && handler.tag == nullptr)
return true;
if (!r.SkipString())

2
src/decoder/plugins/OpusTags.hxx
View File

@@ -30,6 +30,6 @@ struct TagHandler;
bool
ScanOpusTags(const void *data, size_t size,
ReplayGainInfo *rgi,
const TagHandler *handler, void *ctx);
const TagHandler &handler, void *ctx);
#endif

2
src/decoder/plugins/SidplayDecoderPlugin.cxx
View File

@@ -286,7 +286,7 @@ sidplay_file_decode(Decoder &decoder, Path path_fs)
static bool
sidplay_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const auto container = ParseContainerPath(path_fs);
const unsigned song_num = container.track;

4
src/decoder/plugins/SndfileDecoderPlugin.cxx
View File

@@ -244,7 +244,7 @@ sndfile_stream_decode(Decoder &decoder, InputStream &is)
static void
sndfile_handle_tag(SNDFILE *sf, int str, TagType tag,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const char *value = sf_get_string(sf, str);
if (value != nullptr)
@@ -266,7 +266,7 @@ static constexpr struct {
static bool
sndfile_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
SF_INFO info;

10
src/decoder/plugins/VorbisComments.cxx
View File

@@ -56,7 +56,7 @@ vorbis_comments_to_replay_gain(ReplayGainInfo &rgi, char **comments)
static bool
vorbis_copy_comment(const char *comment,
const char *name, TagType tag_type,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
const char *value;
@@ -71,9 +71,9 @@ vorbis_copy_comment(const char *comment,
static void
vorbis_scan_comment(const char *comment,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
if (handler->pair != nullptr) {
if (handler.pair != nullptr) {
const DivideString split(comment, '=');
if (split.IsDefined() && !split.IsEmpty())
tag_handler_invoke_pair(handler, handler_ctx,
@@ -95,7 +95,7 @@ vorbis_scan_comment(const char *comment,
void
vorbis_comments_scan(char **comments,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
while (*comments)
vorbis_scan_comment(*comments++,
@@ -107,7 +107,7 @@ Tag *
vorbis_comments_to_tag(char **comments)
{
TagBuilder tag_builder;
vorbis_comments_scan(comments, &add_tag_handler, &tag_builder);
vorbis_comments_scan(comments, add_tag_handler, &tag_builder);
return tag_builder.IsEmpty()
? nullptr
: tag_builder.CommitNew();

2
src/decoder/plugins/VorbisComments.hxx
View File

@@ -31,7 +31,7 @@ vorbis_comments_to_replay_gain(ReplayGainInfo &rgi, char **comments);
void
vorbis_comments_scan(char **comments,
const TagHandler *handler, void *handler_ctx);
const TagHandler &handler, void *handler_ctx);
Tag *
vorbis_comments_to_tag(char **comments);

2
src/decoder/plugins/VorbisDecoderPlugin.cxx
View File

@@ -335,7 +335,7 @@ vorbis_stream_decode(Decoder &decoder,
static bool
vorbis_scan_stream(InputStream &is,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
VorbisInputStream vis(nullptr, is);
OggVorbis_File vf;

8
src/decoder/plugins/WavpackDecoderPlugin.cxx
View File

@@ -243,7 +243,7 @@ wavpack_replaygain(ReplayGainInfo &rgi,
static void
wavpack_scan_tag_item(WavpackContext *wpc, const char *name,
TagType type,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
char buffer[1024];
int len = WavpackGetTagItem(wpc, name, buffer, sizeof(buffer));
@@ -256,7 +256,7 @@ wavpack_scan_tag_item(WavpackContext *wpc, const char *name,
static void
wavpack_scan_pair(WavpackContext *wpc, const char *name,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
char buffer[8192];
int len = WavpackGetTagItem(wpc, name, buffer, sizeof(buffer));
@@ -271,7 +271,7 @@ wavpack_scan_pair(WavpackContext *wpc, const char *name,
*/
static bool
wavpack_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
char error[ERRORLEN];
WavpackContext *wpc = WavpackOpenFileInput(path_fs.c_str(), error,
@@ -302,7 +302,7 @@ wavpack_scan_file(Path path_fs,
wavpack_scan_tag_item(wpc, i->name, i->type,
handler, handler_ctx);
if (handler->pair != nullptr) {
if (handler.pair != nullptr) {
char name[64];
for (int i = 0, n = WavpackGetNumTagItems(wpc);

2
src/decoder/plugins/WildmidiDecoderPlugin.cxx
View File

@@ -123,7 +123,7 @@ wildmidi_file_decode(Decoder &decoder, Path path_fs)
static bool
wildmidi_scan_file(Path path_fs,
const TagHandler *handler, void *handler_ctx)
const TagHandler &handler, void *handler_ctx)
{
midi *wm = WildMidi_Open(path_fs.c_str());
if (wm == nullptr)