2024-11-09 16:14:28 +07:00

51 lines
1.6 KiB
Rust

//! Waku [peer handling and connection](https://rfc.vac.dev/spec/36/#connecting-to-peers) methods
// std
use std::ffi::CString;
use std::time::Duration;
// crates
use libc::*;
use multiaddr::Multiaddr;
// internal
use crate::general::Result;
use crate::utils::LibwakuResponse;
use crate::utils::{get_trampoline, handle_no_response};
use crate::node::events::WakuNodeContext;
/// Dial peer using a multiaddress
/// If `timeout` as milliseconds doesn't fit into a `i32` it is clamped to [`i32::MAX`]
/// If the function execution takes longer than `timeout` value, the execution will be canceled and an error returned.
/// Use 0 for no timeout
/// As per the [specification](https://rfc.vac.dev/spec/36/#extern-char-waku_connect_peerchar-address-int-timeoutms)
pub fn waku_connect(
ctx: &WakuNodeContext,
address: &Multiaddr,
timeout: Option<Duration>,
) -> Result<()> {
let address_ptr = CString::new(address.to_string())
.expect("CString should build properly from multiaddress")
.into_raw();
let mut result: LibwakuResponse = Default::default();
let result_cb = |r: LibwakuResponse| result = r;
let code = unsafe {
let mut closure = result_cb;
let cb = get_trampoline(&closure);
let out = waku_sys::waku_connect(
ctx.obj_ptr,
address_ptr,
timeout
.map(|duration| duration.as_millis().try_into().unwrap_or(u32::MAX))
.unwrap_or(0),
cb,
&mut closure as *mut _ as *mut c_void,
);
drop(CString::from_raw(address_ptr));
out
};
handle_no_response(code, result)
}