1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
//! Unix-specific extension for the `wasmtime` crate.
//!
//! This module is only available on Unix targets, for example Linux. Note that
//! this module is notably not available on macOS or Windows. Note that the
//! import path for this module is `wasmtime::unix::...`, which is intended to
//! emphasize that it is platform-specific.
//!
//! The traits contained in this module are intended to extend various types
//! throughout the `wasmtime` crate with extra functionality that's only
//! available on Unix.
use crate::{AsContextMut, Store};
/// Extensions for the [`Store`] type only available on Unix.
pub trait StoreExt {
// TODO: needs more docs?
/// The signal handler must be
/// [async-signal-safe](http://man7.org/linux/man-pages/man7/signal-safety.7.html).
unsafe fn set_signal_handler<H>(&mut self, handler: H)
where
H: 'static
+ Fn(libc::c_int, *const libc::siginfo_t, *const libc::c_void) -> bool
+ Send
+ Sync;
}
impl<T> StoreExt for Store<T> {
unsafe fn set_signal_handler<H>(&mut self, handler: H)
where
H: 'static
+ Fn(libc::c_int, *const libc::siginfo_t, *const libc::c_void) -> bool
+ Send
+ Sync,
{
self.as_context_mut()
.0
.set_signal_handler(Some(Box::new(handler)));
}
}