{"id":66839,"library":"bitcoinleveldb-util","title":"bitcoinleveldb-util","description":"Low-level utilities for bitcoin-rs/bitcoinleveldb providing C++-style non-dropping singletons and destructor control via DoNotDestruct and NoDestructor<T>.","status":"active","version":"0.1.19","language":"rust","source_language":null,"source_url":"https://github.com/klebs6/bitcoin-rs","tags":["bitcoin","leveldb","utilities","singleton","no-drop"],"install":[{"cmd":"# Cargo.toml\n[dependencies]\nbitcoinleveldb-util = \"0.1.19\"","lang":"toml","label":"Cargo.toml"},{"cmd":"cargo add bitcoinleveldb-util","lang":"bash","label":"cargo add"}],"dependencies":[],"imports":[{"symbol":"NoDestructor","correct":"use bitcoinleveldb_util::NoDestructor;"}],"quickstart":{"code":"use bitcoinleveldb_util::NoDestructor;\n\nfn main() {\n    let val = NoDestructor::new(42);\n    println!(\"{}\", *val);\n}","lang":"rust","description":"Create a value that will not have its destructor called."},"warnings":[{"fix":"Ensure that any resources managed by the inner value are handled manually or are not required to be dropped.","message":"NoDestructor prevents Rust's normal drop, which can cause resource leaks if not used carefully.","severity":"gotcha","affected_versions":">=0.1.0"}],"env_vars":null,"search_vec":"'/bitcoinleveldb':12 'bitcoin':10,27 'bitcoin-r':9 'bitcoinleveldb':2 'bitcoinleveldb-util':1 'c':14 'control':22 'destructor':21 'donotdestruct':24 'drop':18,33 'level':6 'leveldb':28 'low':5 'low-level':4 'no-drop':31 'nodestructor':26 'non':17 'non-drop':16 'provid':13 'rs':11 'singleton':19,30 'style':15 'util':3,7,29 'via':23","created_at":"2026-06-17T17:29:17.672811+00:00","updated_at":"2026-06-17T17:29:17.672811+00:00","problems":[],"ecosystem":"crates","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://github.com/klebs6/bitcoin-rs","github":"https://github.com/klebs6/bitcoin-rs","docs":"https://docs.rs/bitcoinleveldb-util/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-17","next_check":"2026-12-14","install_tag":null}}