44 lines
1.2 KiB
Rust
44 lines
1.2 KiB
Rust
use crate::Result;
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use ruma::{DeviceId, UserId};
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use sled::IVec;
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#[derive(Clone)]
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pub struct TransactionIds {
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pub(super) userdevicetxnid_response: sled::Tree, // Response can be empty (/sendToDevice) or the event id (/send)
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}
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impl TransactionIds {
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pub fn add_txnid(
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&self,
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user_id: &UserId,
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device_id: Option<&DeviceId>,
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txn_id: &str,
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data: &[u8],
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) -> Result<()> {
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let mut key = user_id.as_bytes().to_vec();
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key.push(0xff);
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key.extend_from_slice(device_id.map(|d| d.as_bytes()).unwrap_or_default());
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key.push(0xff);
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key.extend_from_slice(txn_id.as_bytes());
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self.userdevicetxnid_response.insert(key, data)?;
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Ok(())
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}
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pub fn existing_txnid(
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&self,
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user_id: &UserId,
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device_id: Option<&DeviceId>,
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txn_id: &str,
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) -> Result<Option<IVec>> {
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let mut key = user_id.as_bytes().to_vec();
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key.push(0xff);
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key.extend_from_slice(device_id.map(|d| d.as_bytes()).unwrap_or_default());
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key.push(0xff);
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key.extend_from_slice(txn_id.as_bytes());
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// If there's no entry, this is a new transaction
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Ok(self.userdevicetxnid_response.get(key)?)
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}
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}
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