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authorAlex <alex@adnab.me>2023-01-03 15:28:24 +0000
committerAlex <alex@adnab.me>2023-01-03 15:28:24 +0000
commit73ed9c74039448c69ebe382e361acf3ecbfef70b (patch)
tree7fb21a559e53557d5dea5efd2b7dafe9f9751367 /src/model/prev/v051/object_table.rs
parent582b0761790b7958a3ba10c4b549b466997d2dcd (diff)
parent1d5bdc17a46648eb3494ff629d0d360d0217c1e2 (diff)
downloadgarage-73ed9c74039448c69ebe382e361acf3ecbfef70b.tar.gz
garage-73ed9c74039448c69ebe382e361acf3ecbfef70b.zip
Merge pull request 'Refactor how things are migrated' (#461) from format-migration into main
Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/461
Diffstat (limited to 'src/model/prev/v051/object_table.rs')
-rw-r--r--src/model/prev/v051/object_table.rs149
1 files changed, 0 insertions, 149 deletions
diff --git a/src/model/prev/v051/object_table.rs b/src/model/prev/v051/object_table.rs
deleted file mode 100644
index e79e5787..00000000
--- a/src/model/prev/v051/object_table.rs
+++ /dev/null
@@ -1,149 +0,0 @@
-use serde::{Deserialize, Serialize};
-use std::collections::BTreeMap;
-
-use garage_util::data::*;
-
-use garage_table::crdt::*;
-
-/// An object
-#[derive(PartialEq, Eq, Clone, Debug, Serialize, Deserialize)]
-pub struct Object {
- /// The bucket in which the object is stored, used as partition key
- pub bucket: String,
-
- /// The key at which the object is stored in its bucket, used as sorting key
- pub key: String,
-
- /// The list of currenty stored versions of the object
- versions: Vec<ObjectVersion>,
-}
-
-impl Object {
- /// Get a list of currently stored versions of `Object`
- pub fn versions(&self) -> &[ObjectVersion] {
- &self.versions[..]
- }
-}
-
-/// Informations about a version of an object
-#[derive(PartialEq, Eq, Clone, Debug, Serialize, Deserialize)]
-pub struct ObjectVersion {
- /// Id of the version
- pub uuid: Uuid,
- /// Timestamp of when the object was created
- pub timestamp: u64,
- /// State of the version
- pub state: ObjectVersionState,
-}
-
-/// State of an object version
-#[derive(PartialEq, Eq, Clone, Debug, Serialize, Deserialize)]
-pub enum ObjectVersionState {
- /// The version is being received
- Uploading(ObjectVersionHeaders),
- /// The version is fully received
- Complete(ObjectVersionData),
- /// The version uploaded containded errors or the upload was explicitly aborted
- Aborted,
-}
-
-impl Crdt for ObjectVersionState {
- fn merge(&mut self, other: &Self) {
- use ObjectVersionState::*;
- match other {
- Aborted => {
- *self = Aborted;
- }
- Complete(b) => match self {
- Aborted => {}
- Complete(a) => {
- a.merge(b);
- }
- Uploading(_) => {
- *self = Complete(b.clone());
- }
- },
- Uploading(_) => {}
- }
- }
-}
-
-/// Data stored in object version
-#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug, Serialize, Deserialize)]
-pub enum ObjectVersionData {
- /// The object was deleted, this Version is a tombstone to mark it as such
- DeleteMarker,
- /// The object is short, it's stored inlined
- Inline(ObjectVersionMeta, #[serde(with = "serde_bytes")] Vec<u8>),
- /// The object is not short, Hash of first block is stored here, next segments hashes are
- /// stored in the version table
- FirstBlock(ObjectVersionMeta, Hash),
-}
-
-impl AutoCrdt for ObjectVersionData {
- const WARN_IF_DIFFERENT: bool = true;
-}
-
-/// Metadata about the object version
-#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug, Serialize, Deserialize)]
-pub struct ObjectVersionMeta {
- /// Headers to send to the client
- pub headers: ObjectVersionHeaders,
- /// Size of the object
- pub size: u64,
- /// etag of the object
- pub etag: String,
-}
-
-/// Additional headers for an object
-#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug, Serialize, Deserialize)]
-pub struct ObjectVersionHeaders {
- /// Content type of the object
- pub content_type: String,
- /// Any other http headers to send
- pub other: BTreeMap<String, String>,
-}
-
-impl ObjectVersion {
- fn cmp_key(&self) -> (u64, Uuid) {
- (self.timestamp, self.uuid)
- }
-
- /// Is the object version completely received
- pub fn is_complete(&self) -> bool {
- matches!(self.state, ObjectVersionState::Complete(_))
- }
-}
-
-impl Crdt for Object {
- fn merge(&mut self, other: &Self) {
- // Merge versions from other into here
- for other_v in other.versions.iter() {
- match self
- .versions
- .binary_search_by(|v| v.cmp_key().cmp(&other_v.cmp_key()))
- {
- Ok(i) => {
- self.versions[i].state.merge(&other_v.state);
- }
- Err(i) => {
- self.versions.insert(i, other_v.clone());
- }
- }
- }
-
- // Remove versions which are obsolete, i.e. those that come
- // before the last version which .is_complete().
- let last_complete = self
- .versions
- .iter()
- .enumerate()
- .rev()
- .find(|(_, v)| v.is_complete())
- .map(|(vi, _)| vi);
-
- if let Some(last_vi) = last_complete {
- self.versions = self.versions.drain(last_vi..).collect::<Vec<_>>();
- }
- }
-}