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tools.rs: move digest_to_hex() into tools

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This commit is contained in:
Dietmar Maurer
2019-01-25 10:58:28 +01:00
parent 53157ca6cf
commit 2296860027
4 changed files with 27 additions and 22 deletions
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24
src/backup/chunk_store.rs
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@ -37,26 +37,14 @@ pub struct ChunkStore {
_lockfile: File,
}
const HEX_CHARS: &'static [u8; 16] = b"0123456789abcdef";
// TODO: what about sysctl setting vm.vfs_cache_pressure (0 - 100) ?
pub fn digest_to_hex(digest: &[u8]) -> String {
let mut buf = Vec::<u8>::with_capacity(digest.len()*2);
for i in 0..digest.len() {
buf.push(HEX_CHARS[(digest[i] >> 4) as usize]);
buf.push(HEX_CHARS[(digest[i] & 0xf) as usize]);
}
unsafe { String::from_utf8_unchecked(buf) }
}
fn digest_to_prefix(digest: &[u8]) -> PathBuf {
let mut buf = Vec::<u8>::with_capacity(2+1+2+1);
const HEX_CHARS: &'static [u8; 16] = b"0123456789abcdef";
buf.push(HEX_CHARS[(digest[0] as usize) >> 4]);
buf.push(HEX_CHARS[(digest[0] as usize) &0xf]);
buf.push(HEX_CHARS[(digest[1] as usize) >> 4]);
@ -151,7 +139,7 @@ impl ChunkStore {
let mut chunk_path = self.chunk_dir.clone();
let prefix = digest_to_prefix(&digest);
chunk_path.push(&prefix);
let digest_str = digest_to_hex(&digest);
let digest_str = tools::digest_to_hex(&digest);
chunk_path.push(&digest_str);
const UTIME_NOW: i64 = ((1 << 30) - 1);
@ -180,7 +168,7 @@ impl ChunkStore {
let mut chunk_path = self.chunk_dir.clone();
let prefix = digest_to_prefix(&digest);
chunk_path.push(&prefix);
let digest_str = digest_to_hex(&digest);
let digest_str = tools::digest_to_hex(&digest);
chunk_path.push(&digest_str);
let mut f = std::fs::File::open(&chunk_path)?;
@ -287,12 +275,12 @@ impl ChunkStore {
let digest = hasher.finish();
//println!("DIGEST {}", digest_to_hex(&digest));
//println!("DIGEST {}", tools::digest_to_hex(&digest));
let mut chunk_path = self.chunk_dir.clone();
let prefix = digest_to_prefix(&digest);
chunk_path.push(&prefix);
let digest_str = digest_to_hex(&digest);
let digest_str = tools::digest_to_hex(&digest);
chunk_path.push(&digest_str);
let lock = self.mutex.lock();