Commit iniziale

2025-02-18 22:59:07 +00:00
commit 4bbf35cefb
6879 changed files with 623784 additions and 0 deletions
--- a/node_modules/mssql/lib/tedious/transaction.js
+++ b/node_modules/mssql/lib/tedious/transaction.js
@@ -0,0 +1,98 @@
+'use strict'
+
+const debug = require('debug')('mssql:tedi')
+const BaseTransaction = require('../base/transaction')
+const { IDS } = require('../utils')
+const TransactionError = require('../error/transaction-error')
+
+class Transaction extends BaseTransaction {
+  constructor (parent) {
+    super(parent)
+
+    this._abort = () => {
+      if (!this._rollbackRequested) {
+        // transaction interrupted because of XACT_ABORT
+
+        const pc = this._acquiredConnection
+
+        // defer releasing so connection can switch from SentClientRequest to LoggedIn state
+        setImmediate(this.parent.release.bind(this.parent), pc)
+
+        this._acquiredConnection.removeListener('rollbackTransaction', this._abort)
+        this._acquiredConnection = null
+        this._acquiredConfig = null
+        this._aborted = true
+
+        this.emit('rollback', true)
+      }
+    }
+  }
+
+  _begin (isolationLevel, callback) {
+    super._begin(isolationLevel, err => {
+      if (err) return callback(err)
+
+      debug('transaction(%d): begin', IDS.get(this))
+
+      this.parent.acquire(this, (err, connection, config) => {
+        if (err) return callback(err)
+
+        this._acquiredConnection = connection
+        this._acquiredConnection.on('rollbackTransaction', this._abort)
+        this._acquiredConfig = config
+
+        connection.beginTransaction(err => {
+          if (err) err = new TransactionError(err)
+
+          debug('transaction(%d): begun', IDS.get(this))
+
+          callback(err)
+        }, this.name, this.isolationLevel)
+      })
+    })
+  }
+
+  _commit (callback) {
+    super._commit(err => {
+      if (err) return callback(err)
+
+      debug('transaction(%d): commit', IDS.get(this))
+
+      this._acquiredConnection.commitTransaction(err => {
+        if (err) err = new TransactionError(err)
+
+        this._acquiredConnection.removeListener('rollbackTransaction', this._abort)
+        this.parent.release(this._acquiredConnection)
+        this._acquiredConnection = null
+        this._acquiredConfig = null
+
+        if (!err) debug('transaction(%d): commited', IDS.get(this))
+
+        callback(err)
+      })
+    })
+  }
+
+  _rollback (callback) {
+    super._rollback(err => {
+      if (err) return callback(err)
+
+      debug('transaction(%d): rollback', IDS.get(this))
+
+      this._acquiredConnection.rollbackTransaction(err => {
+        if (err) err = new TransactionError(err)
+
+        this._acquiredConnection.removeListener('rollbackTransaction', this._abort)
+        this.parent.release(this._acquiredConnection)
+        this._acquiredConnection = null
+        this._acquiredConfig = null
+
+        if (!err) debug('transaction(%d): rolled back', IDS.get(this))
+
+        callback(err)
+      })
+    })
+  }
+}
+
+module.exports = Transaction