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use rayon::{prelude::*, ThreadPoolBuilder}; | |
use pyo3::{exceptions::PyRuntimeError, prelude::*, pybacked::PyBackedStr, types::PyString}; | |
use anyhow::Error; | |
type PyStringRef = Py<PyString>; | |
#[derive(Clone)] | |
struct PyStringWrapper { | |
py_bytes: PyStringRef, | |
backed_str: PyBackedStr, | |
} | |
impl PyStringWrapper { | |
fn from_bound(bound: Bound<'_, PyString>) -> Result<Self, Error> { | |
let py_bytes = bound.clone().unbind(); | |
let backed_str = PyBackedStr::try_from(bound)?; | |
Ok(Self { | |
py_bytes, | |
backed_str, | |
}) | |
} | |
fn as_str(&self) -> &str { | |
&self.backed_str | |
} | |
fn into_py_bytes(self) -> PyStringRef { | |
self.py_bytes | |
} | |
// fn into_py_str(self) -> Py<PyString> { | |
// self.py_str | |
// } | |
} | |
#[pyfunction] | |
#[pyo3(signature = (input,input2))] | |
pub(crate) fn test<'py>( | |
input: Vec<[Bound<'py, PyString>; 2]>, | |
input2: Vec<(Bound<'py, PyString>, i32)>, | |
) -> Vec<(Py<PyString>, i32)> { | |
let input_unbound = input | |
.into_iter() | |
.map(|e| { | |
let mut e_iter = e.into_iter(); | |
Ok([ | |
PyStringWrapper::from_bound(e_iter.next().unwrap())?, | |
PyStringWrapper::from_bound(e_iter.next().unwrap())?, | |
]) | |
}) | |
.collect::<Result<Vec<_>, Error>>() | |
.unwrap(); | |
let input2_unbound = input2 | |
.into_iter() | |
.map(|e| { | |
// check_first_byte_is_digit(e.0.to_str()?); | |
Ok((PyStringWrapper::from_bound(e.0)?, e.1)) | |
}) | |
.collect::<Result<Vec<_>, Error>>() | |
.map_err(|err| PyRuntimeError::new_err(err.to_string())) | |
.unwrap(); | |
let tp = ThreadPoolBuilder::new() | |
.num_threads(4 as usize) | |
.build() | |
.unwrap(); | |
tp.install(|| { | |
input_unbound | |
.iter() | |
.flat_map(|a| { | |
input2_unbound | |
.iter() | |
.cloned() | |
.map(move |b| (a, b)) | |
.collect::<Vec<_>>() | |
}) | |
.map(|(e, r)| { | |
let res = rust_func(e[0].as_str(), e[1].as_str(), r.0.as_str(), r.1); | |
(r.0.into_py_bytes(), res) | |
}) | |
.collect::<Vec<_>>() | |
}) | |
} | |
fn rust_func(x: &str, y: &str, z: &str, n: i32) -> i32 { | |
println!("x={}, y={}, z={}, n={}", x, y, z, n); | |
n * 2 | |
} |
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