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rate-limit concurrent processPreCoin

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This commit is contained in:
Florian Dold 2016-11-17 01:23:53 +01:00
parent d088aec009
commit 86fb71f563
1 changed files with 24 additions and 13 deletions
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37
src/wallet.ts
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@ -379,6 +379,8 @@ export class Wallet {
private notifier: Notifier;
public cryptoApi: CryptoApi;
private processPreCoinConcurrent = 0;
/**
* Set of identifiers for running operations.
*/
@ -725,22 +727,29 @@ export class Wallet {
private async processPreCoin(preCoin: PreCoinRecord,
retryDelayMs = 100): Promise<void> {
const exchange = await this.q().get(Stores.exchanges,
preCoin.exchangeBaseUrl);
if (!exchange) {
console.error("db inconsistend: exchange for precoin not found");
retryDelayMs = 200): Promise<void> {
if (this.processPreCoinConcurrent >= 1) {
console.log("delaying processPreCoin");
setTimeout(() => this.processPreCoin(preCoin, retryDelayMs * 2),
retryDelayMs);
return;
}
const denom = await this.q().get(Stores.denominations,
[preCoin.exchangeBaseUrl, preCoin.denomPub]);
if (!denom) {
console.error("db inconsistent: denom for precoin not found");
return;
}
console.log("executing processPreCoin");
this.processPreCoinConcurrent++;
try {
const exchange = await this.q().get(Stores.exchanges,
preCoin.exchangeBaseUrl);
if (!exchange) {
console.error("db inconsistend: exchange for precoin not found");
return;
}
const denom = await this.q().get(Stores.denominations,
[preCoin.exchangeBaseUrl, preCoin.denomPub]);
if (!denom) {
console.error("db inconsistent: denom for precoin not found");
return;
}
const coin = await this.withdrawExecute(preCoin);
const mutateReserve = (r: ReserveRecord) => {
@ -784,6 +793,8 @@ export class Wallet {
let nextRetryDelayMs = Math.min(retryDelayMs * 2, 1000 * 60);
setTimeout(() => this.processPreCoin(preCoin, nextRetryDelayMs),
retryDelayMs);
} finally {
this.processPreCoinConcurrent--;
}
}