forked from Deuxfleurs/garage
DeleteObject: always insert a deletion marker with a bigger timestamp than everything before
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parent
8686cfd0b1
commit
c82d91c6bc
3 changed files with 21 additions and 26 deletions
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@ -3,12 +3,12 @@ use std::sync::Arc;
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use hyper::{Body, Request, Response, StatusCode};
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use garage_util::data::*;
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use garage_util::time::*;
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use garage_model::garage::Garage;
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use garage_model::s3::object_table::*;
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use crate::s3::error::*;
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use crate::s3::put::next_timestamp;
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use crate::s3::xml as s3_xml;
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use crate::signature::verify_signed_content;
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@ -23,40 +23,36 @@ async fn handle_delete_internal(
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.await?
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.ok_or(Error::NoSuchKey)?; // No need to delete
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let interesting_versions = object.versions().iter().filter(|v| {
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!matches!(
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v.state,
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ObjectVersionState::Aborted
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| ObjectVersionState::Complete(ObjectVersionData::DeleteMarker)
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)
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});
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let del_timestamp = next_timestamp(Some(&object));
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let del_uuid = gen_uuid();
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let mut version_to_delete = None;
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let mut timestamp = now_msec();
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for v in interesting_versions {
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if v.timestamp + 1 > timestamp || version_to_delete.is_none() {
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version_to_delete = Some(v.uuid);
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let deleted_version = object
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.versions()
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.iter()
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.rev()
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.find(|v| !matches!(&v.state, ObjectVersionState::Aborted))
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.or_else(|| object.versions().iter().rev().next());
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let deleted_version = match deleted_version {
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Some(dv) => dv.uuid,
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None => {
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warn!("Object has no versions: {:?}", object);
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Uuid::from([0u8; 32])
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}
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timestamp = std::cmp::max(timestamp, v.timestamp + 1);
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}
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let deleted_version = version_to_delete.ok_or(Error::NoSuchKey)?;
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let version_uuid = gen_uuid();
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};
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let object = Object::new(
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bucket_id,
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key.into(),
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vec![ObjectVersion {
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uuid: version_uuid,
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timestamp,
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uuid: del_uuid,
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timestamp: del_timestamp,
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state: ObjectVersionState::Complete(ObjectVersionData::DeleteMarker),
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}],
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);
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garage.object_table.insert(&object).await?;
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Ok((deleted_version, version_uuid))
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Ok((deleted_version, del_uuid))
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}
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pub async fn handle_delete(
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@ -9,7 +9,6 @@ use md5::{Digest as Md5Digest, Md5};
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use garage_table::*;
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use garage_util::async_hash::*;
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use garage_util::data::*;
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use garage_util::time::*;
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use garage_model::bucket_table::Bucket;
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use garage_model::garage::Garage;
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@ -35,7 +34,7 @@ pub async fn handle_create_multipart_upload(
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let existing_object = garage.object_table.get(&bucket_id, &key).await?;
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let upload_id = gen_uuid();
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let timestamp = next_timestamp(&existing_object);
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let timestamp = next_timestamp(existing_object.as_ref());
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let headers = get_headers(req.headers())?;
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@ -86,7 +86,7 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
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// Generate identity of new version
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let version_uuid = gen_uuid();
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let version_timestamp = next_timestamp(&existing_object);
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let version_timestamp = next_timestamp(existing_object.as_ref());
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// If body is small enough, store it directly in the object table
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// as "inline data". We can then return immediately.
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@ -529,7 +529,7 @@ pub(crate) fn get_headers(headers: &HeaderMap<HeaderValue>) -> Result<ObjectVers
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})
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}
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pub(crate) fn next_timestamp(existing_object: &Option<Object>) -> u64 {
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pub(crate) fn next_timestamp(existing_object: Option<&Object>) -> u64 {
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existing_object
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.as_ref()
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.and_then(|obj| obj.versions().iter().map(|v| v.timestamp).max())
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