azure_core

Trait RetryPolicy

Source 
pub trait RetryPolicy:
    Debug
    + Send
    + Sync {
    // Required methods
    fn is_expired(
        &self,
        duration_since_start: Duration,
        retry_count: u32,
    ) -> bool;
    fn sleep_duration(&self, retry_count: u32) -> Duration;

    // Provided method
    fn wait<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _error: &'life1 Error,
        retry_count: u32,
        retry_after: Option<Duration>,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
}
Expand description

A retry policy.

In the simple form, the policies need only differ in how they determine if the retry has expired and for how long they should sleep between retries.

wait can be implemented in more complex cases where a simple test of time is not enough.

Required Methods§

Source

fn is_expired(&self, duration_since_start: Duration, retry_count: u32) -> bool

Determine if no more retries should be performed.

Must return true if no more retries should be attempted.

Source

fn sleep_duration(&self, retry_count: u32) -> Duration

Determine how long before the next retry should be attempted.

Provided Methods§

Source

fn wait<'life0, 'life1, 'async_trait>( &'life0 self, _error: &'life1 Error, retry_count: u32, retry_after: Option<Duration>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

A Future that will wait until the request can be retried. error is the Error value the led to a retry attempt. retry_after is the duration to wait before retrying, if provided by the server response.

Implementors§