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chunk_store.insert_chunk: return information about existing chunks

This commit is contained in:
Dietmar Maurer 2018-12-08 11:25:11 +01:00
parent 12bb93b3ad
commit 391a2e43ff
1 changed files with 8 additions and 5 deletions
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13
src/backup/chunk_store.rs
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@ -151,7 +151,7 @@ impl ChunkStore {
})
}
pub fn insert_chunk(&mut self, chunk: &[u8]) -> Result<([u8; 32]), Error> {
pub fn insert_chunk(&mut self, chunk: &[u8]) -> Result<(bool, [u8; 32]), Error> {
self.hasher.reset();
self.hasher.input(chunk);
@ -170,7 +170,7 @@ impl ChunkStore {
if let Ok(metadata) = std::fs::metadata(&chunk_path) {
if metadata.is_file() {
return Ok(digest);
return Ok((true, digest));
} else {
bail!("Got unexpected file type for chunk {}", digest_str);
}
@ -195,7 +195,7 @@ impl ChunkStore {
drop(lock);
Ok(digest)
Ok((false, digest))
}
}
@ -210,8 +210,11 @@ fn test_chunk_store1() {
assert!(chunk_store.is_err());
let mut chunk_store = ChunkStore::create(".testdir").unwrap();
chunk_store.insert_chunk(&[0u8, 1u8]).unwrap();
chunk_store.insert_chunk(&[0u8, 1u8]).unwrap();
let (exists, _) = chunk_store.insert_chunk(&[0u8, 1u8]).unwrap();
assert!(!exists);
let (exists, _) = chunk_store.insert_chunk(&[0u8, 1u8]).unwrap();
assert!(exists);
let chunk_store = ChunkStore::create(".testdir");