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Imported Upstream version 4.3.2.467

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Former-commit-id: 9c2cb47f45fa221e661ab616387c9cda183f283d
This commit is contained in:
Xamarin Public Jenkins
2016-02-22 11:00:01 -05:00
parent f302175246
commit f3e3aab35a
4097 changed files with 122406 additions and 82300 deletions
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23
external/referencesource/System.Data/System/Data/SqlClient/SqlDelegatedTransaction.cs vendored
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@@ -11,6 +11,7 @@ namespace System.Data.SqlClient {
using System.Data.Common;
using System.Data.SqlClient;
using System.Diagnostics;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using System.Threading;
@@ -19,6 +20,7 @@ namespace System.Data.SqlClient {
sealed internal class SqlDelegatedTransaction : SysTx.IPromotableSinglePhaseNotification {
private static int _objectTypeCount;
private readonly int _objectID = Interlocked.Increment(ref _objectTypeCount);
private const int _globalTransactionsTokenVersionSizeInBytes = 4; // the size of the version in the PromotedDTCToken for Global Transactions
internal int ObjectID {
get {
return _objectID;
@@ -163,6 +165,20 @@ namespace System.Data.SqlClient {
connection.ExecuteTransaction(SqlInternalConnection.TransactionRequest.Promote, null, IsolationLevel.Unspecified, _internalTransaction, true);
returnValue = _connection.PromotedDTCToken;
// For Global Transactions, we need to set the Transaction Id since we use a Non-MSDTC Promoter type.
if(_connection.IsGlobalTransaction) {
if (SysTxForGlobalTransactions.SetDistributedTransactionIdentifier == null) {
throw SQL.UnsupportedSysTxForGlobalTransactions();
}
if(!_connection.IsGlobalTransactionsEnabledForServer) {
throw SQL.GlobalTransactionsNotEnabled();
}
SysTxForGlobalTransactions.SetDistributedTransactionIdentifier.Invoke(_atomicTransaction, new object[] { this, GetGlobalTxnIdentifierFromToken() });
}
promoteException = null;
}
catch (SqlException e) {
@@ -453,5 +469,12 @@ namespace System.Data.SqlClient {
}
}
// Get the server-side Global Transaction Id from the PromotedDTCToken
// Skip first 4 bytes since they contain the version
private Guid GetGlobalTxnIdentifierFromToken() {
byte[] txnGuid = new byte[16];
Array.Copy(_connection.PromotedDTCToken, _globalTransactionsTokenVersionSizeInBytes /* Skip the version */, txnGuid, 0, txnGuid.Length);
return new Guid(txnGuid);
}
}
}