38 lines
950 B
Rust
38 lines
950 B
Rust
use std::cmp::Ordering;
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use serde::{Deserialize, Serialize};
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use garage_util::crdt::*;
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/// Permission given to a key in a bucket
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#[derive(PartialOrd, Ord, PartialEq, Eq, Clone, Copy, Debug, Serialize, Deserialize)]
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pub struct BucketKeyPerm {
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/// Timestamp at which the permission was given
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pub timestamp: u64,
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/// The key can be used to read the bucket
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pub allow_read: bool,
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/// The key can be used to write in the bucket
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pub allow_write: bool,
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}
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impl Crdt for BucketKeyPerm {
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fn merge(&mut self, other: &Self) {
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match other.timestamp.cmp(&self.timestamp) {
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Ordering::Greater => {
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*self = *other;
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}
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Ordering::Equal if other != self => {
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warn!("Different permission sets with same timestamp: {:?} and {:?}, merging to most restricted permission set.", self, other);
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if !other.allow_read {
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self.allow_read = false;
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}
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if !other.allow_write {
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self.allow_write = false;
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}
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}
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_ => (),
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}
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}
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}
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