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use serde_derive::{ Serialize, Deserialize };
use crate::backends::{ Backend, RunError };
use std::process::{ Command };
use std::path::Path;
use crate::wait::{ wait_child, WaitInfo };
#[derive(Debug, Serialize, Deserialize, Default)]
pub struct PythonBackend {
template: Option<String>,
version: Option<String>,
timeout: Option<f32>,
}
impl PythonBackend {
fn get_interpreter(&self) -> String {
format!(
"python{}",
self.version
.as_ref()
.unwrap_or(&String::new())
)
}
}
impl Backend for PythonBackend {
fn get_template(&self) -> Option<&str> {
match self.template {
Some(ref t) => Some(t),
None => None
}
}
fn run(&self, fname: &Path) -> Result<WaitInfo, RunError> {
let timer = std::time::Instant::now();
let child = Command::new(self.get_interpreter())
.arg(fname.as_os_str())
.spawn()?;
let timeout = std::time::Duration::from_secs_f32(self.timeout.unwrap_or(1.0));
Ok(wait_child(child, timeout, timer)?)
}
}
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