azure_data_cosmos_driver 0.5.0

Core implementation layer for Azure Cosmos DB - provides transport, routing, and protocol handling for cross-language SDK reuse
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

//! Location mutation effects emitted by retry evaluation.

use crate::options::Region;

use super::{partition_key_range_id::PartitionKeyRangeId, CosmosEndpoint, UnavailableReason};

/// Location-state mutation emitted by retry evaluation.
#[derive(Clone, Debug)]
pub(crate) enum LocationEffect {
    /// Marks an endpoint temporarily unavailable.
    MarkEndpointUnavailable {
        endpoint: CosmosEndpoint,
        reason: UnavailableReason,
    },
    /// Marks a partition unavailable, applied by partition-level routing.
    MarkPartitionUnavailable(UnavailablePartition),
    /// Requests a rate-limited account metadata refresh.
    RefreshAccountProperties,
}

/// Identifies a partition-region pair to mark unavailable.
#[derive(Clone, Debug)]
pub(crate) struct UnavailablePartition {
    pub partition_key_range_id: Option<PartitionKeyRangeId>,
    pub region: Option<Region>,
    pub is_read: bool,
    pub is_partitioned_resource: bool,
}