forked from Deuxfleurs/garage
Keep old data
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e16077f40a
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64b91c2645
2 changed files with 31 additions and 5 deletions
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@ -582,7 +582,7 @@ impl System {
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.map(|ip| (*ip, None))
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.collect::<Vec<_>>();
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match self.persist_status.load() {
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match self.persist_status.load_async().await {
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Ok(peers) => {
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bp2.extend(peers.iter().map(|x| (x.addr, Some(x.id))));
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}
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@ -653,9 +653,25 @@ impl System {
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async fn update_status(self: &Arc<Self>, updaters: &Updaters, status: Status) {
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if status.hash != self.status.borrow().hash {
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info!("Persisting new peer list");
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let serializable_status = status.to_serializable_membership(&self);
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self.persist_status.save_async(&serializable_status).await
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.expect("Unable to persist peer list");
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let mut list = status.to_serializable_membership(&self);
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// Combine with old peer list to make sure no peer is lost
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match self.persist_status.load_async().await {
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Ok(old_list) => {
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for pp in old_list {
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if !list.iter().any(|np| pp.id == np.id) {
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list.push(pp);
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}
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}
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}
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_ => (),
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}
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if list.len() > 0 {
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self.persist_status.save_async(&list).await
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.expect("Unable to persist peer list");
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}
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}
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let status = Arc::new(status);
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@ -1,7 +1,7 @@
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use std::io::{Read, Write};
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use std::path::PathBuf;
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use tokio::io::AsyncWriteExt;
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use tokio::io::{AsyncReadExt, AsyncWriteExt};
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use serde::{Deserialize, Serialize};
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@ -51,6 +51,16 @@ where
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Ok(())
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}
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pub async fn load_async(&self) -> Result<T, Error> {
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let mut file = tokio::fs::File::open(&self.path).await?;
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let mut bytes = vec![];
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file.read_to_end(&mut bytes).await?;
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let value = rmp_serde::decode::from_read_ref(&bytes[..])?;
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Ok(value)
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}
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pub async fn save_async(&self, t: &T) -> Result<(), Error> {
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let bytes = rmp_to_vec_all_named(t)?;
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