fn probe_deadline(request: &Request, log: &Logger) -> Instant {
    let probe_timeout = request
        .headers()
        .iter()
        .find(|h| h.field.as_str().as_str() == HEADER_SCRAPE_TIMEOUT)
        .map(|h| {
            h.value
                .as_str()
                .parse::<f64>()
                .map_err(|e| info!(log, "Invalid {} header: {}", HEADER_SCRAPE_TIMEOUT, e))
        })
        .and_then(|r| r.map(Duration::from_secs_f64).ok())
        .unwrap_or(SCRAPE_TIMEOUT_DEFAULT);

    Instant::now() + probe_timeout - SCRAPE_TIMEOUT_OFFSET
}
/// Calculates a timeout for a probe based on Prometheus'
// `X-Prometheus-Scrape-Timeout-Seconds` header minus some offset to account for
// any communication overhead.
Calculates a timeout for a probe based on Prometheus'
`X-Prometheus-Scrape-Timeout-Seconds` header minus some offset to account for
any communication overhead.
Calculates a timeout for a probe based on Prometheus ' ` X - Prometheus - Scrape - Timeout - Seconds ` header minus some offset to account for any communication overhead .
fn probe_deadline(request: &Request, log: &Logger) -> Instant {
    let probe_timeout = request
        .headers()
        .iter()
        .find(|h| h.field.as_str().as_str() == HEADER_SCRAPE_TIMEOUT)
        .map(|h| {
            h.value
                .as_str()
                .parse::<f64>()
                .map_err(|e| info!(log, "Invalid {} header: {}", HEADER_SCRAPE_TIMEOUT, e))
        })
        .and_then(|r| r.map(Duration::from_secs_f64).ok())
        .unwrap_or(SCRAPE_TIMEOUT_DEFAULT);
    Instant::now() + probe_timeout - SCRAPE_TIMEOUT_OFFSET
}
fn probe_deadline ( request : & Request , log : & Logger ) -> Instant { let probe_timeout = request . headers ( ) . iter ( ) . find ( | h | h . field . as_str ( ) . as_str ( ) == HEADER_SCRAPE_TIMEOUT ) . map ( | h | { h . value . as_str ( ) . parse :: < f64 > ( ) . map_err ( | e | info ! ( log " " HEADER_SCRAPE_TIMEOUT e ) ) } ) . and_then ( | r | r . map ( Duration :: from_secs_f64 ) . ok ( ) ) . unwrap_or ( SCRAPE_TIMEOUT_DEFAULT ) ; Instant :: now ( ) + probe_timeout - SCRAPE_TIMEOUT_OFFSET }
Calculates a timeout for a probe based on Prometheus'
`X-Prometheus-Scrape-Timeout-Seconds` header minus some offset to account for
any communication overhead.
Calculates a timeout for a probe based on Prometheus ' ` X - Prometheus - Scrape - Timeout - Seconds ` header minus some offset to account for any communication overhead .
request
&Request
log
&Logger
request
&Request
log
&Logger