Struct Probe 

pub struct Probe<T = String> {
    pub request: Request<T>,
    pub timeout: Duration,
    pub interval: Duration,
    pub exp_status: c_uint,
    pub window: c_uint,
    pub threshold: c_uint,
    pub initial: c_uint,
}

A backend health check probe definition.

Describes how frequently Varnish polls a backend and what constitutes a healthy response. Pass this to the backend constructor; Varnish owns the actual probing loop.

Fields

request: Request<T>

The request to send on each probe attempt.

timeout: Duration

How long to wait for a response before considering the probe failed.

interval: Duration

How often to send probe requests.

exp_status: c_uint

The HTTP status code considered healthy (e.g. 200). 0 means any 2xx status.

window: c_uint

Number of most recent probes to consider when evaluating health (sliding window size).

threshold: c_uint

Minimum number of successful probes within window to consider the backend healthy.

initial: c_uint

Number of probes that are assumed successful when the backend starts up.

Implementations

impl Probe<Cow<'_, str>>

pub fn to_owned(&self) -> Probe

Convert this borrowed probe into an owned Probe<String>.

Trait Implementations

impl<T: Clone> Clone for Probe<T>

fn clone(&self) -> Probe<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for Probe<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for Probe<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl IntoVCL<VCL_PROBE> for Probe

fn into_vcl(self, ws: &mut Workspace<'_>) -> Result<VCL_PROBE, VclError>

impl<T> Serialize for Probe<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.