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main.rs
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//-*-Mode:rust;coding:utf-8;tab-width:4;c-basic-offset:4;indent-tabs-mode:()-*-
//ex: set ft=rust fenc=utf-8 sts=4 ts=4 sw=4 et nomod:
//! # Message Size Integration Test with Rust
// MIT License
//
// Copyright (c) 2023 Michael Truog <mjtruog at protonmail dot com>
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#![crate_name = "msg_size_rust"]
#![crate_type = "bin"]
extern crate erlang;
extern crate cloudi;
type StateType = ();
fn request(_request_type: &cloudi::RequestType,
_name: &str,
_pattern: &str,
_request_info: &[u8],
request: &[u8],
timeout: cloudi::Timeout,
_priority: cloudi::Priority,
_trans_id: &cloudi::TransId,
_source: &cloudi::Source,
_state: &mut StateType,
_api: &mut cloudi::API<StateType>) -> cloudi::Response {
let bytes: [u8; 4] = request[..4].try_into().unwrap();
let i0 = u32::from_ne_bytes(bytes);
let i1 = if i0 == 1073741823 {
0
}
else {
i0 + 1
};
let destination = "/tests/msg_size/erlang";
println!("forward #{i1} rust to {destination} (with timeout {timeout} ms)");
let request_new = [i1.to_ne_bytes().as_slice(), &request[4..]].concat();
cloudi::Response::Forward(destination.to_string(), b"".to_vec(),
request_new)
}
fn task(thread_index: u32) {
let mut state_value = ();
let mut api = cloudi::API::new(thread_index, &mut state_value).unwrap();
api.subscribe("rust", request).unwrap();
match api.poll(-1) {
Ok(result) => {
assert_eq!(false, result);
println!("terminate msg_size rust");
},
Err(error) => {
eprintln!("{:#?}", error);
std::process::abort();
},
}
}
fn main() {
let thread_count: u32 = cloudi::thread_count().unwrap();
std::thread::scope(move |s| {
for thread_index in 0..thread_count {
s.spawn(move || {
task(thread_index)
});
}
});
}