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FIX: save backup mesh with temp file safely

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Change-Id: I39ed281e271add443c41cb177d203f0b0decf2b6
This commit is contained in:
chunmao.guo 2022-08-26 18:12:41 +08:00 • committed by Lane.Wei
parent 2ecdf43ca1
commit 71d81ad78b
1 changed files with 22 additions and 2 deletions
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24
src/libslic3r/Format/bbs_3mf.cpp
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@ -3863,18 +3863,38 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
auto filename = boost::format("3D/Objects/%s_%d.model") % object.name % obj_id;
std::string filepath = temp_path + "/" + filename.str();
if (!open_zip_writer(&archive, filepath)) {
std::string filepath_tmp = filepath + ".tmp";
boost::system::error_code ec;
boost::filesystem::remove(filepath_tmp, ec);
if (!open_zip_writer(&archive, filepath_tmp)) {
add_error("Unable to open the file");
BOOST_LOG_TRIVIAL(error) << __FUNCTION__ << ":" << __LINE__ << boost::format(", Unable to open the file\n");
return false;
}
struct close_lock
{
mz_zip_archive & archive;
std::string const * filename;
void close() {
close_zip_writer(&archive);
filename = nullptr;
}
~close_lock() {
if (filename) {
close_zip_writer(&archive);
boost::filesystem::remove(*filename);
}
}
} lock{archive, &filepath_tmp};
IdToObjectDataMap objects_data;
objects_data.insert({obj_id, {&object, obj_id}});
_add_model_file_to_archive(filename.str(), archive, model, objects_data);
mz_zip_writer_finalize_archive(&archive);
close_zip_writer(&archive);
lock.close();
boost::filesystem::rename(filepath_tmp, filepath, ec);
return true;
}