private void ReadDroppedTables()
{
lock (commitLock) {
// The list of all dropped tables from the state file
var tables = StateStore.GetDeleteList();
// For each visible table
foreach (var resource in tables)
{
int tableId = resource.TableId;
string tableName = resource.SourceName;
// Load the master table from the resource information
var source = LoadTableSource(tableId, tableName);
// File wasn't found so remove from the delete resources
if (source == null)
{
StateStore.RemoveDeleteResource(tableName);
}
else
{
source.Open();
// Add the table to the table list
tableSources.Add(tableId, source);
}
}
StateStore.Flush();
}
}
internal void CommitToTables(IEnumerable <int> createdTables, IEnumerable <int> droppedTables)
{
// Add created tables to the committed tables list.
foreach (int createdTable in createdTables)
{
// For all created tables, add to the visible list and remove from the
// delete list in the state store.
var t = GetTableSource(createdTable);
var resource = new TableStateStore.TableState(t.TableId, t.SourceName);
StateStore.AddVisibleResource(resource);
StateStore.RemoveDeleteResource(resource.SourceName);
}
// Remove dropped tables from the committed tables list.
foreach (int droppedTable in droppedTables)
{
// For all dropped tables, add to the delete list and remove from the
// visible list in the state store.
var t = GetTableSource(droppedTable);
var resource = new TableStateStore.TableState(t.TableId, t.SourceName);
StateStore.AddDeleteResource(resource);
StateStore.RemoveVisibleResource(resource.SourceName);
}
try {
StateStore.Flush();
} catch (IOException e) {
throw new InvalidOperationException("IO Error: " + e.Message, e);
}
}
private void CleanUp()
{
lock (commitLock) {
if (IsClosed)
{
return;
}
// If no open transactions on the database, then clean up.
if (Database.OpenTransactions == null ||
Database.OpenTransactions.Count == 0)
{
var deleteList = StateStore.GetDeleteList().ToArray();
if (deleteList.Length > 0)
{
int dropCount = 0;
for (int i = deleteList.Length - 1; i >= 0; --i)
{
var tableName = deleteList[i].SourceName;
CloseTable(tableName, true);
}
for (int i = deleteList.Length - 1; i >= 0; --i)
{
string tableName = deleteList[i].SourceName;
bool dropped = CloseAndDropTable(tableName);
// If we managed to drop the table, remove from the list.
if (dropped)
{
StateStore.RemoveDeleteResource(tableName);
++dropCount;
}
}
// If we dropped a table, commit an update to the conglomerate state.
if (dropCount > 0)
{
StateStore.Flush();
}
}
}
}
}
