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zadam
2020-06-20 13:18:03 +02:00
parent 88348c560c
commit 6207203b35
8 changed files with 27 additions and 34 deletions
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12
src/services/sql.js
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@@ -224,22 +224,12 @@ function wrap(func, query) {
}
}
// true if transaction is active globally.
// cls.namespace.get('isTransactional') OTOH indicates active transaction in active CLS
let transactionActive = false;
// resolves when current transaction ends with either COMMIT or ROLLBACK
let transactionPromise = null;
let transactionPromiseResolve = null;
function startTransactionIfNecessary() {
if (!cls.get('isTransactional')
|| cls.get('isInTransaction')) {
return;
}
// first set semaphore (atomic operation and only then start transaction
transactionActive = true;
transactionPromise = new Promise(res => transactionPromiseResolve = res);
cls.set('isInTransaction', true);
beginTransaction();
@@ -276,10 +266,8 @@ function transactional(func) {
cls.namespace.set('isTransactional', false);
if (cls.namespace.get('isInTransaction')) {
transactionActive = false;
cls.namespace.set('isInTransaction', false);
// resolving even for rollback since this is just semaphore for allowing another write transaction to proceed
transactionPromiseResolve();
}
}
}