qiniu_download/async_api/
req_id.rs

1use hyper::header::HeaderValue;
2use std::{
3    convert::{TryFrom, TryInto},
4    sync::atomic::{AtomicU64, Ordering::Relaxed},
5    time::{Duration, SystemTime, UNIX_EPOCH},
6};
7
8static START_TIME: AtomicU64 = AtomicU64::new(0);
9
10/// 设置下载起始时间
11pub fn set_download_start_time(t: SystemTime) {
12    START_TIME.store(
13        t.duration_since(UNIX_EPOCH)
14            .map_or(0, |n| n.as_millis().try_into().unwrap_or(u64::MAX)),
15        Relaxed,
16    )
17}
18
19/// 获取下载结束之间到下载起始时间之间的时长
20pub fn total_download_duration(t: SystemTime) -> Duration {
21    let end_time: u64 = t
22        .duration_since(UNIX_EPOCH)
23        .map_or(0, |n| n.as_millis().try_into().unwrap_or(u64::MAX));
24    Duration::from_millis(end_time - START_TIME.load(Relaxed))
25}
26
27pub(crate) const REQUEST_ID_HEADER: &str = "X-ReqId";
28
29pub(crate) fn get_req_id(tn: SystemTime, tries: usize, timeout: Duration) -> HeaderValue {
30    let (start_time, delta) = get_start_time_and_delta(tn);
31    HeaderValue::try_from(format!(
32        "r{}-{}-t{}-o{}",
33        start_time,
34        delta,
35        tries,
36        timeout.as_millis()
37    ))
38    .expect("Unexpected invalid header value")
39}
40
41pub(crate) fn get_req_id2(
42    tn: SystemTime,
43    tries: usize,
44    async_task_id: u32,
45    timeout: Duration,
46) -> HeaderValue {
47    let (start_time, delta) = get_start_time_and_delta(tn);
48    HeaderValue::try_from(format!(
49        "r{}-{}-t{}-a{}-o{}",
50        start_time,
51        delta,
52        tries,
53        async_task_id,
54        timeout.as_millis()
55    ))
56    .expect("Unexpected invalid header value")
57}
58
59fn get_start_time_and_delta(tn: SystemTime) -> (u64, u128) {
60    let start_time: u64 = START_TIME.load(Relaxed);
61    let end_time: u128 = tn.duration_since(UNIX_EPOCH).map_or(0, |n| n.as_nanos());
62    let delta: u128 = end_time - u128::from(start_time) * 1000 * 1000;
63    (start_time, delta)
64}
qiniu_download/async_api/req_id.rs

qiniu_download/async_api/
req_id.rs
