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September 5, 2024 20:04
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Rust stored Proc registration without Lua
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| use std::collections::HashMap; | |
| use serde::{Deserialize, Serialize}; | |
| use tarantool::{self, session, tuple::Encode}; | |
| use mlua::Lua; | |
| #[tarantool::proc] | |
| fn add(left: i64, right: i64) -> i64 { | |
| left + right | |
| } | |
| #[derive(Serialize, Deserialize)] | |
| struct FuncTuple { | |
| pub id: u32, | |
| pub owner: u32, | |
| pub name: String, | |
| pub setuid: u32, | |
| pub language: String, | |
| pub body: String, | |
| pub routine_type: String, | |
| pub param_list: Vec<String>, | |
| pub returns: String, | |
| pub aggregate: String, | |
| pub sql_data_access: String, | |
| pub is_deterministic: bool, | |
| pub is_sandboxed: bool, | |
| pub is_null_call: bool, | |
| pub exports: Vec<String>, | |
| pub opts: HashMap<String, String>, | |
| pub comment: String, | |
| pub created: String, | |
| pub last_altered: String, | |
| pub trigger: Vec<String>, | |
| } | |
| impl Encode for FuncTuple {} | |
| fn register_func(name: &str) { | |
| let _func = tarantool::space::Space::find_cached("_func").unwrap(); | |
| let _vfunc = tarantool::space::Space::find_cached("_vfunc").unwrap(); | |
| if _vfunc.index("name").unwrap().get(&("libmodules.add",)).unwrap().is_none() { | |
| let max_id = match _vfunc.primary_key().max(&()).unwrap() { | |
| Some(t) => t.decode::<FuncTuple>().unwrap().id, | |
| None => 0 | |
| }; | |
| _func.insert(&FuncTuple{ | |
| id: max_id+1, | |
| owner: session::euid().unwrap(), | |
| name: name.to_string(), | |
| setuid: 0, | |
| language: "C".to_string(), | |
| body: "".to_string(), | |
| routine_type: "function".to_string(), | |
| param_list: vec![], | |
| returns: "any".to_string(), | |
| aggregate: "none".to_string(), | |
| sql_data_access: "none".to_string(), | |
| is_deterministic: false, | |
| is_sandboxed: false, | |
| is_null_call: true, | |
| exports: vec!["LUA".to_string()], | |
| opts: HashMap::new(), | |
| comment: "".to_string(), | |
| created: "".to_string(), | |
| last_altered: "".to_string(), | |
| trigger: vec![], | |
| }).unwrap(); | |
| } | |
| } | |
| #[mlua::lua_module] | |
| fn libmodules(_lua: &Lua) -> mlua::Result<bool> { | |
| register_func("libmodules.add"); | |
| Ok(true) | |
| } |
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Should by compiled as .dylib (or .so) and placed into (.rocks/lib/tarantool/).
Sample of config.yaml: