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overlaydb put_payload.

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This commit is contained in:
Gav Wood 2015-11-28 19:03:50 +01:00
parent 4640d64965
commit 7733faaab5
1 changed files with 14 additions and 5 deletions
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19
src/overlaydb.rs
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@ -4,6 +4,7 @@ use error::*;
use hash::*; use hash::*;
use bytes::*; use bytes::*;
use sha3::*; use sha3::*;
use rlp::*;
use hashdb::*; use hashdb::*;
use memorydb::*; use memorydb::*;
use std::ops::*; use std::ops::*;
@ -34,10 +35,10 @@ impl OverlayDB {
if back_rc + rc < 0 { if back_rc + rc < 0 {
return Err(From::from(BaseDataError::NegativelyReferencedHash)); return Err(From::from(BaseDataError::NegativelyReferencedHash));
} }
self.put_payload(&key, (&back_value, rc + back_rc)); self.put_payload(&key, (back_value, rc + back_rc));
} }
None => { None => {
self.put_payload(&key, (&value, rc)); self.put_payload(&key, (value, rc));
} }
}; };
ret += 1; ret += 1;
@ -48,12 +49,20 @@ impl OverlayDB {
/// Get the refs and value of the given key. /// Get the refs and value of the given key.
fn payload(&self, key: &H256) -> Option<(Bytes, i32)> { fn payload(&self, key: &H256) -> Option<(Bytes, i32)> {
unimplemented!(); db.get(&key.bytes())
.expect("Low-level database error. Some issue with your hard disk?")
.map(|d| {
Rlp r(d.deref());
r(Bytes, i32)
})
} }
/// Get the refs and value of the given key. /// Get the refs and value of the given key.
fn put_payload(&self, key: &H256, payload: (&Bytes, i32)) { fn put_payload(&self, key: &H256, payload: (Bytes, i32)) {
unimplemented!(); let mut s = RlpStream::new_list(2);
s.append(payload.1);
s.append(payload.0);
backing.put(&key.bytes(), &s.out().unwrap());
} }
} }