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Add a comment to InProgress.

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Richard Newman 2017-12-07 12:19:59 -08:00
parent a3b8fd3022
commit b7fb44a5a6
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src/conn.rs
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@ -205,6 +205,11 @@ impl Conn {
inputs) inputs)
} }
/// Take a SQLite transaction.
/// IMMEDIATE means 'start the transaction now, but don't exclude readers'. It prevents other
/// connections from taking immediate or exclusive transactions. This is appropriate for our
/// writes and `InProgress`: it means we are ready to write whenever we want to, and nobody else
/// can start a transaction that's not `DEFERRED`, but we don't need exclusivity yet.
pub fn begin_transaction<'m, 'conn>(&'m mut self, sqlite: &'conn mut rusqlite::Connection) -> Result<InProgress<'m, 'conn>> { pub fn begin_transaction<'m, 'conn>(&'m mut self, sqlite: &'conn mut rusqlite::Connection) -> Result<InProgress<'m, 'conn>> {
let tx = sqlite.transaction_with_behavior(TransactionBehavior::Immediate)?; let tx = sqlite.transaction_with_behavior(TransactionBehavior::Immediate)?;
let (current_generation, current_partition_map, current_schema) = let (current_generation, current_partition_map, current_schema) =