internal static void WriteForcedTransactionIntroduction(ITransaction transaction)
{
// Output the change log to the proposed transaction to commit,
IDataFile transactionLog = transaction.GetFile(TransactionLogKey, FileAccess.ReadWrite);
transactionLog.Delete();
StringData logFile = new StringData(transactionLog);
// Record that there is no base root for this transaction,
logFile.Append("no base root");
logFile.Append("\n");
}
internal void RefreshTransactionLog()
{
// Output the change log to the proposed transaction to commit,
IDataFile transactionLog = transaction.GetFile(TransactionLogKey, FileAccess.ReadWrite);
transactionLog.Delete();
StringData logFile = new StringData(transactionLog);
// Record the base root in the log,
logFile.Append(baseRoot.ToString());
logFile.Append("\n");
// Write out every log entry,
foreach (string entry in log)
{
logFile.Append(entry);
logFile.Append("\n");
}
}
public void SimpleAppend()
{
IDataFile file = Transaction.GetFile(new Key(0, 0, 1), FileAccess.ReadWrite);
Assert.IsNotNull(file);
StringData data = new StringData(file);
data.Append("test");
Assert.AreNotEqual(0, file.Position);
file.Position = 0;
string s = data.Substring(0, 4);
Assert.AreEqual("test", s);
Commit();
}
public void IncrementalAppend()
{
IDataFile file = Transaction.GetFile(new Key(0, 0, 1), FileAccess.ReadWrite);
Assert.IsNotNull(file);
StringData data = new StringData(file);
for (int i = 0; i < 500; i++)
{
StringBuilder sb = new StringBuilder();
for (int j = 0; j < i; j++)
{
sb.Append(" ");
}
data.Append(sb.ToString());
}
file.Position = 0;
int offset = 0;
for (int i = 0; i < 500; i++)
{
StringBuilder sb = new StringBuilder();
for (int j = 0; j < i; j++)
{
sb.Append(" ");
}
string s = data.Substring(offset, i);
Assert.AreEqual(sb.ToString(), s);
offset += i;
}
}