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runtime: Implement sled tree batch writes.

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This commit is contained in:
parazyd
2022-11-05 14:46:58 +01:00
parent 38054cc751
commit 3bdd6cf1c9
5 changed files with 138 additions and 76 deletions
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22
example/smart-contract/src/lib.rs
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@@ -61,19 +61,17 @@ define_contract!(
fn init_contract(cid: ContractId, _ix: &[u8]) -> ContractResult {
msg!("wakeup wagies!");
db_init(cid, "wagies")?;
// Initialize a state tree. db_init will fail if the tree already exists.
// Otherwise, it will return a `DbHandle` that can be used further on.
// TODO: If the deploy execution fails, whatever is initialized with db_init
// should be deleted from sled afterwards. There's no way to create a
// tree but only apply the creation when we're done, so db_init creates
// it and upon failure it should delete it
let wagies_handle = db_init(cid, "wagies")?;
db_set(wagies_handle, &serialize(&"jason_gulag".to_string()), &serialize(&110))?;
// Lets write a value in there
let tx_handle = db_begin_tx()?;
db_set(tx_handle, "jason_gulag".as_bytes(), serialize(&110))?;
let db_handle = db_lookup("wagies")?;
db_end_tx(db_handle, tx_handle)?;
// Host will clear delete the batches array after calling this func.
//let db_handle = db_lookup("wagies")?;
Ok(())
}
@@ -141,10 +139,10 @@ fn process_update(_cid: ContractId, update_data: &[u8]) -> ContractResult {
let update: FooUpdate = deserialize(&update_data[1..])?;
// Write the wagie to the db
let tx_handle = db_begin_tx()?;
db_set(tx_handle, update.name.as_bytes(), serialize(&update.age))?;
let db_handle = db_lookup("wagies")?;
db_end_tx(db_handle, tx_handle)?;
//let tx_handle = db_begin_tx()?;
//db_set(tx_handle, &serialize(&update.name), &serialize(&update.age))?;
//let db_handle = db_lookup("wagies")?;
//db_end_tx(db_handle, tx_handle)?;
}
_ => unreachable!(),
}