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use std::cell::RefCell;
use anyhow::Result;
use tracing::error;
thread_local! {
pub static ERROR_HANDLER: std::cell::RefCell<Option<unsafe extern "C" fn(libc::c_int, *mut libc::c_char)>> = RefCell::new(None);
}
/// Update the most recent error, clearing whatever may have been there before.
#[must_use] pub fn stacktrace(err: &anyhow::Error) -> String {
format!("{err}")
}
pub fn wrap_result<T, F>(func: F) -> Option<T>
where
F: Fn() -> Result<T>,
{
let result = func();
match result {
Ok(ok) => Some(ok),
Err(error) => {
// Call the handler
handle_error(&error);
None
}
}
}
/// # Panics
/// Panics if the stacktrace size is > than an i32
pub fn handle_error(error: &anyhow::Error) {
ERROR_HANDLER.with(|val| {
let mut stacktrace = stacktrace(error);
error!("Error emitted: {}", stacktrace);
if let Some(func) = *val.borrow() {
// Call the error handler
unsafe {
func(
(stacktrace.len() + 1).try_into().unwrap(),
stacktrace.as_mut_ptr().cast::<libc::c_char>(),
);
}
}
});
}
#[cfg(test)]
mod tests {
// todo
}
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