Green-Sky/solanaceae_ngc_ft1
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maybe filesystem::path can help us

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Green Sky 2023-12-13 16:09:34 +01:00
parent 5995059777
commit 0a53a76eb3
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1 changed files with 5 additions and 4 deletions
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solanaceae/ngc_ft1_sha1/file_rw_mapped.hpp
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@ -15,15 +15,16 @@ struct FileRWMapped : public FileI {
// TODO: add truncate support?
FileRWMapped(std::string_view file_path, uint64_t file_size) {
_file_size = file_size;
std::filesystem::path native_file_path{file_path};
if (!std::filesystem::exists(file_path)) {
std::ofstream(std::string{file_path}) << '\0'; // force create the file
if (!std::filesystem::exists(native_file_path)) {
std::ofstream(native_file_path) << '\0'; // force create the file
}
std::filesystem::resize_file(file_path, file_size); // ensure size, usually sparse
std::filesystem::resize_file(native_file_path, file_size); // ensure size, usually sparse
std::error_code err;
// sink, is also read
_file_map.map(std::string{file_path}, 0, file_size, err);
_file_map.map(native_file_path.u8string(), 0, file_size, err);
if (err) {
std::cerr << "FileRWMapped error: mapping file failed " << err << "\n";