ogb912/opensim
1
0
Fork 0
mirror of https://github.com/opensim/opensim.git synced 2026-08-05 17:05:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

Remove time based terrain storage in SQLite so revision number can be used

Browse Source 
to denote terrain format revision.
Add terrain DB format revision codes to ISimulationDataStore.cs.
Setup so legacy compatible terrain storage and fetch is possible while
allowing future format extensions.
This commit is contained in:
Robert Adams
2013-09-24 13:41:44 -07:00
parent fa1c688342
commit aea5d3a842
4 changed files with 28 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
OpenSim/Data/SQLite/SQLiteSimulationData.cs
View File

@@ -828,22 +828,12 @@ namespace OpenSim.Data.SQLite
{
lock (ds)
{
int revision = Util.UnixTimeSinceEpoch();
// This is added to get rid of the infinitely growing
// terrain databases which negatively impact on SQLite
// over time. Before reenabling this feature there
// needs to be a limitter put on the number of
// revisions in the database, as this old
// implementation is a DOS attack waiting to happen.
int revision = (int)DBTerrainRevision.Legacy256;
using (
SqliteCommand cmd =
new SqliteCommand("delete from terrain where RegionUUID=:RegionUUID and Revision <= :Revision",
m_conn))
SqliteCommand cmd = new SqliteCommand("delete from terrain where RegionUUID=:RegionUUID", m_conn))
{
cmd.Parameters.Add(new SqliteParameter(":RegionUUID", regionID.ToString()));
cmd.Parameters.Add(new SqliteParameter(":Revision", revision));
cmd.ExecuteNonQuery();
}