本文整理汇总了C#中System.Data.SqlClient.TdsParserStateObject.WritePacket方法的典型用法代码示例。如果您正苦于以下问题：C# TdsParserStateObject.WritePacket方法的具体用法？C# TdsParserStateObject.WritePacket怎么用？C# TdsParserStateObject.WritePacket使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.SqlClient.TdsParserStateObject的用法示例。
在下文中一共展示了TdsParserStateObject.WritePacket方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: WriteBulkCopyDone
internal Task WriteBulkCopyDone(TdsParserStateObject stateObj)
{
// Write DONE packet
//
if (!(State == TdsParserState.OpenNotLoggedIn || State == TdsParserState.OpenLoggedIn))
{
throw ADP.ClosedConnectionError();
}
stateObj.WriteByte(TdsEnums.SQLDONE);
WriteShort(0, stateObj);
WriteShort(0, stateObj);
WriteInt(0, stateObj);
stateObj._pendingData = true;
stateObj._messageStatus = 0;
return stateObj.WritePacket(TdsEnums.HARDFLUSH);
}示例2: TdsExecuteTransactionManagerRequest
//.........这里部分代码省略.........
// #1 will occur on standard BeginTransactionAPI call. #2 should only occur if
// t-sql transaction started followed by a call to SqlConnection.BeginTransaction.
// Any other state is unknown.
if (_currentTransaction != transaction)
{
Debug.Assert(_currentTransaction == null || true == _fResetConnection, "We should not have a current Tx at this point");
PendingTransaction = transaction;
}
stateObj.WriteByte((byte)isoLevel);
stateObj.WriteByte((byte)(transactionName.Length * 2)); // Write number of bytes (unicode string).
WriteString(transactionName, stateObj);
break;
case TdsEnums.TransactionManagerRequestType.Commit:
Debug.Assert(transactionName.Length == 0, "Should not have a transaction name on Commit");
stateObj.WriteByte((byte)0); // No xact name
stateObj.WriteByte(0); // No flags
Debug.Assert(isoLevel == TdsEnums.TransactionManagerIsolationLevel.Unspecified, "Should not have isolation level other than unspecified on Commit!");
// WriteByte((byte) 0, stateObj); // IsolationLevel
// WriteByte((byte) 0, stateObj); // No begin xact name
break;
case TdsEnums.TransactionManagerRequestType.Rollback:
stateObj.WriteByte((byte)(transactionName.Length * 2)); // Write number of bytes (unicode string).
WriteString(transactionName, stateObj);
stateObj.WriteByte(0); // No flags
Debug.Assert(isoLevel == TdsEnums.TransactionManagerIsolationLevel.Unspecified, "Should not have isolation level other than unspecified on Commit!");
// WriteByte((byte) 0, stateObj); // IsolationLevel
// WriteByte((byte) 0, stateObj); // No begin xact name
break;
case TdsEnums.TransactionManagerRequestType.Save:
stateObj.WriteByte((byte)(transactionName.Length * 2)); // Write number of bytes (unicode string).
WriteString(transactionName, stateObj);
break;
default:
Debug.Assert(false, "Unexpected TransactionManagerRequest");
break;
}
Task writeTask = stateObj.WritePacket(TdsEnums.HARDFLUSH);
Debug.Assert(writeTask == null, "Writes should not pend when writing sync");
stateObj._pendingData = true;
stateObj._messageStatus = 0;
SqlDataReader dtcReader = null;
stateObj.SniContext = SniContext.Snix_Read;
if (returnReader)
{
dtcReader = new SqlDataReader(null, CommandBehavior.Default);
Debug.Assert(this == stateObj.Parser, "different parser");
#if DEBUG
// Remove the current owner of stateObj - otherwise we will hit asserts
stateObj.Owner = null;
#endif
dtcReader.Bind(stateObj);
// force consumption of metadata
_SqlMetaDataSet metaData = dtcReader.MetaData;
}
else
{
Run(RunBehavior.UntilDone, null, null, null, stateObj);
}
return dtcReader;
}
catch (Exception e)
{
if (!ADP.IsCatchableExceptionType(e))
{
throw;
}
FailureCleanup(stateObj, e);
throw;
}
finally
{
// SQLHotfix 50000518
// make sure we don't leave temporary fields set when leaving this function
_pendingTransaction = null;
_asyncWrite = hadAsyncWrites;
if (!callerHasConnectionLock)
{
_connHandler.ThreadHasParserLockForClose = false;
_connHandler._parserLock.Release();
}
}
}示例3: WriteByteArray
internal void WriteByteArray(byte[] b, int len, int offsetBuffer, TdsParserStateObject stateObj)
{
int srcOffset = offsetBuffer;
while (len > 0)
{
if ((stateObj._outBytesUsed + len) > stateObj._outBuff.Length)
{
int count = stateObj._outBuff.Length - stateObj._outBytesUsed;
Buffer.BlockCopy(b, srcOffset, stateObj._outBuff, stateObj._outBytesUsed, count);
srcOffset += count;
stateObj._outBytesUsed += count;
if (stateObj._outBytesUsed == stateObj._outBuff.Length)
{
stateObj.WritePacket(0);
}
len -= count;
}
else
{
Buffer.BlockCopy(b, srcOffset, stateObj._outBuff, stateObj._outBytesUsed, len);
stateObj._outBytesUsed += len;
return;
}
}
}示例4: WriteByte
internal void WriteByte(byte b, TdsParserStateObject stateObj)
{
if (stateObj._outBytesUsed == stateObj._outBuff.Length)
{
stateObj.WritePacket(0);
}
stateObj._outBuff[stateObj._outBytesUsed++] = b;
}示例5: WriteBulkCopyDone
internal void WriteBulkCopyDone(TdsParserStateObject stateObj)
{
this.WriteByte(0xfd, stateObj);
this.WriteShort(0, stateObj);
this.WriteShort(0, stateObj);
this.WriteInt(0, stateObj);
stateObj.WritePacket(1);
stateObj._pendingData = true;
}示例6: TdsExecuteTransactionManagerRequest
internal SqlDataReader TdsExecuteTransactionManagerRequest(byte[] buffer, TdsEnums.TransactionManagerRequestType request, string transactionName, TdsEnums.TransactionManagerIsolationLevel isoLevel, int timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj, bool isDelegateControlRequest)
{
SqlDataReader reader2;
if ((TdsParserState.Broken == this.State) || (this.State == TdsParserState.Closed))
{
return null;
}
bool lockTaken = false;
lock (this._connHandler)
{
try
{
try
{
if (this._isYukon && !this.MARSOn)
{
Monitor.Enter(this._physicalStateObj, ref lockTaken);
}
if (!isDelegateControlRequest)
{
this._connHandler.CheckEnlistedTransactionBinding();
}
stateObj._outputMessageType = 14;
stateObj.SetTimeoutSeconds(timeout);
stateObj.SniContext = SniContext.Snix_Execute;
if (this._isYukon)
{
this.WriteMarsHeader(stateObj, this._currentTransaction);
}
this.WriteShort((short) request, stateObj);
bool flag = false;
switch (request)
{
case TdsEnums.TransactionManagerRequestType.GetDTCAddress:
this.WriteShort(0, stateObj);
flag = true;
goto Label_0193;
case TdsEnums.TransactionManagerRequestType.Propagate:
if (buffer == null)
{
break;
}
this.WriteShort(buffer.Length, stateObj);
this.WriteByteArray(buffer, buffer.Length, 0, stateObj);
goto Label_0193;
case TdsEnums.TransactionManagerRequestType.Begin:
if (this._currentTransaction != transaction)
{
this.PendingTransaction = transaction;
}
this.WriteByte((byte) isoLevel, stateObj);
this.WriteByte((byte) (transactionName.Length * 2), stateObj);
this.WriteString(transactionName, stateObj);
goto Label_0193;
case TdsEnums.TransactionManagerRequestType.Commit:
this.WriteByte(0, stateObj);
this.WriteByte(0, stateObj);
goto Label_0193;
case TdsEnums.TransactionManagerRequestType.Rollback:
this.WriteByte((byte) (transactionName.Length * 2), stateObj);
this.WriteString(transactionName, stateObj);
this.WriteByte(0, stateObj);
goto Label_0193;
case TdsEnums.TransactionManagerRequestType.Save:
this.WriteByte((byte) (transactionName.Length * 2), stateObj);
this.WriteString(transactionName, stateObj);
goto Label_0193;
default:
goto Label_0193;
}
this.WriteShort(0, stateObj);
Label_0193:
stateObj.WritePacket(1);
stateObj._pendingData = true;
SqlDataReader reader = null;
stateObj.SniContext = SniContext.Snix_Read;
if (flag)
{
reader = new SqlDataReader(null, CommandBehavior.Default);
reader.Bind(stateObj);
_SqlMetaDataSet metaData = reader.MetaData;
}
else
{
this.Run(RunBehavior.UntilDone, null, null, null, stateObj);
}
if ((request == TdsEnums.TransactionManagerRequestType.Begin) || (request == TdsEnums.TransactionManagerRequestType.Propagate))
{
if ((transaction != null) && (transaction.TransactionId == this._retainedTransactionId))
{
return reader;
}
this._retainedTransactionId = 0L;
}
//.........这里部分代码省略.........