/
example_embed.rs
62 lines (51 loc) · 1.75 KB
/
example_embed.rs
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// Copyright 2016 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
extern crate prom;
use std::thread;
use std::time::Duration;
use prom::encoder::{TextEncoder, Encoder};
use prom::{Counter, Opts, Registry};
fn main() {
let opts = Opts::new("test", "test help").const_label("a", "1").const_label("b", "2");
let counter = Counter::with_opts(opts).unwrap();
let r = Registry::new();
r.register(Box::new(counter.clone())).unwrap();
counter.inc();
assert_eq!(counter.get() as u64, 1);
counter.inc_by(42.0).unwrap();
assert_eq!(counter.get() as u64, 43);
let c2 = counter.clone();
thread::spawn(move || {
for _ in 0..10 {
thread::sleep(Duration::from_millis(500));
c2.inc();
}
});
thread::spawn(move || {
for _ in 0..5 {
thread::sleep(Duration::from_secs(1));
counter.inc();
}
});
// Choose your writer and encoder.
let mut buffer = Vec::<u8>::new();
let encoder = TextEncoder::new();
for _ in 0..5 {
let metric_familys = r.gather();
encoder.encode(&metric_familys, &mut buffer).unwrap();
// Output to the standard output.
println!("{}", String::from_utf8(buffer.clone()).unwrap());
buffer.clear();
thread::sleep(Duration::from_secs(1));
}
}