From 888133e987b9a93df1e2ba4867ceb4a9f912f340 Mon Sep 17 00:00:00 2001 From: Sean Dague Date: Thu, 13 Sep 2007 13:10:21 +0000 Subject: add some locks around DataSet manipulation to ensure we are doing this safely --- .../MonoSqliteDataStore.cs | 210 +++++++++------------ 1 file changed, 93 insertions(+), 117 deletions(-) (limited to 'OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite') diff --git a/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs b/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs index 6971cc8..b6771c7 100644 --- a/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs +++ b/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs @@ -48,40 +48,41 @@ namespace OpenSim.DataStore.MonoSqlite // primDa.FillSchema(ds, SchemaType.Source, "PrimSchema"); TestTables(conn); - ds.Tables.Add(createPrimTable()); - setupPrimCommands(primDa, conn); - primDa.Fill(ds.Tables["prims"]); - - ds.Tables.Add(createShapeTable()); - setupShapeCommands(shapeDa, conn); - - // WORKAROUND: This is a work around for sqlite on - // windows, which gets really unhappy with blob columns - // that have no sample data in them. At some point we - // need to actually find a proper way to handle this. - try - { - shapeDa.Fill(ds.Tables["primshapes"]); - } - catch (Exception) - { - MainLog.Instance.Verbose("DATASTORE", "Caught fill error on primshapes table"); + lock(ds) { + ds.Tables.Add(createPrimTable()); + setupPrimCommands(primDa, conn); + primDa.Fill(ds.Tables["prims"]); + + ds.Tables.Add(createShapeTable()); + setupShapeCommands(shapeDa, conn); + + // WORKAROUND: This is a work around for sqlite on + // windows, which gets really unhappy with blob columns + // that have no sample data in them. At some point we + // need to actually find a proper way to handle this. + try + { + shapeDa.Fill(ds.Tables["primshapes"]); + } + catch (Exception) + { + MainLog.Instance.Verbose("DATASTORE", "Caught fill error on primshapes table"); + } + return; } - return; } public void StoreObject(SceneObjectGroup obj, LLUUID regionUUID) { - foreach (SceneObjectPart prim in obj.Children.Values) - { - MainLog.Instance.Verbose("DATASTORE", "Adding obj: " + obj.UUID + " to region: " + regionUUID); - addPrim(prim, obj.UUID, regionUUID); + lock (ds) { + foreach (SceneObjectPart prim in obj.Children.Values) + { + MainLog.Instance.Verbose("DATASTORE", "Adding obj: " + obj.UUID + " to region: " + regionUUID); + addPrim(prim, obj.UUID, regionUUID); + } } - // MainLog.Instance.Verbose("Attempting to do database update...."); - primDa.Update(ds, "prims"); - shapeDa.Update(ds, "primshapes"); - ds.AcceptChanges(); + Commit(); // MainLog.Instance.Verbose("Dump of prims:", ds.GetXml()); } @@ -91,20 +92,21 @@ namespace OpenSim.DataStore.MonoSqlite DataTable shapes = ds.Tables["primshapes"]; string selectExp = "SceneGroupID = '" + obj.ToString() + "'"; - DataRow[] primRows = prims.Select(selectExp); - foreach (DataRow row in primRows) - { - LLUUID uuid = new LLUUID((string)row["UUID"]); - DataRow shapeRow = shapes.Rows.Find(uuid); - if (shapeRow != null) + lock (ds) { + DataRow[] primRows = prims.Select(selectExp); + foreach (DataRow row in primRows) { - shapeRow.Delete(); + LLUUID uuid = new LLUUID((string)row["UUID"]); + DataRow shapeRow = shapes.Rows.Find(uuid); + if (shapeRow != null) + { + shapeRow.Delete(); + } + row.Delete(); } - row.Delete(); } - - primDa.Update(ds, "prims"); - shapeDa.Update(ds, "primshapes"); + + Commit(); } public List LoadObjects(LLUUID regionUUID) @@ -118,59 +120,61 @@ namespace OpenSim.DataStore.MonoSqlite string byRegion = "RegionUUID = '" + regionUUID.ToString() + "'"; string orderByParent = "ParentID ASC"; - DataRow[] primsForRegion = prims.Select(byRegion, orderByParent); - MainLog.Instance.Verbose("DATASTORE", "Loaded " + primsForRegion.Length + " prims for region: " + regionUUID); - foreach (DataRow primRow in primsForRegion) - { - try + lock (ds) { + DataRow[] primsForRegion = prims.Select(byRegion, orderByParent); + MainLog.Instance.Verbose("DATASTORE", "Loaded " + primsForRegion.Length + " prims for region: " + regionUUID); + + foreach (DataRow primRow in primsForRegion) { - string uuid = (string)primRow["UUID"]; - string objID = (string)primRow["SceneGroupID"]; - if (uuid == objID) //is new SceneObjectGroup ? + try { - SceneObjectGroup group = new SceneObjectGroup(); - SceneObjectPart prim = buildPrim(primRow); - DataRow shapeRow = shapes.Rows.Find(prim.UUID); - if (shapeRow != null) + string uuid = (string)primRow["UUID"]; + string objID = (string)primRow["SceneGroupID"]; + if (uuid == objID) //is new SceneObjectGroup ? { - prim.Shape = buildShape(shapeRow); + SceneObjectGroup group = new SceneObjectGroup(); + SceneObjectPart prim = buildPrim(primRow); + DataRow shapeRow = shapes.Rows.Find(prim.UUID); + if (shapeRow != null) + { + prim.Shape = buildShape(shapeRow); + } + else + { + Console.WriteLine("No shape found for prim in storage, so setting default box shape"); + prim.Shape = BoxShape.Default; + } + group.AddPart(prim); + group.RootPart = prim; + + createdObjects.Add(group.UUID, group); + retvals.Add(group); } else { - Console.WriteLine("No shape found for prim in storage, so setting default box shape"); - prim.Shape = BoxShape.Default; + SceneObjectPart prim = buildPrim(primRow); + DataRow shapeRow = shapes.Rows.Find(prim.UUID); + if (shapeRow != null) + { + prim.Shape = buildShape(shapeRow); + } + else + { + Console.WriteLine("No shape found for prim in storage, so setting default box shape"); + prim.Shape = BoxShape.Default; + } + createdObjects[new LLUUID(objID)].AddPart(prim); } - group.AddPart(prim); - group.RootPart = prim; - - createdObjects.Add(group.UUID, group); - retvals.Add(group); } - else + catch (Exception e) { - SceneObjectPart prim = buildPrim(primRow); - DataRow shapeRow = shapes.Rows.Find(prim.UUID); - if (shapeRow != null) + MainLog.Instance.Error("DATASTORE", "Failed create prim object, exception and data follows"); + MainLog.Instance.Verbose(e.ToString()); + foreach (DataColumn col in prims.Columns) { - prim.Shape = buildShape(shapeRow); + MainLog.Instance.Verbose("Col: " + col.ColumnName + " => " + primRow[col]); } - else - { - Console.WriteLine("No shape found for prim in storage, so setting default box shape"); - prim.Shape = BoxShape.Default; - } - createdObjects[new LLUUID(objID)].AddPart(prim); - } - } - catch (Exception e) - { - - MainLog.Instance.Error("DATASTORE", "Failed create prim object, exception and data follows"); - MainLog.Instance.Verbose(e.ToString()); - foreach (DataColumn col in prims.Columns) - { - MainLog.Instance.Verbose("Col: " + col.ColumnName + " => " + primRow[col]); } } } @@ -203,47 +207,19 @@ namespace OpenSim.DataStore.MonoSqlite return new List(); } - public void Shutdown() + public void Commit() { - // TODO: DataSet commit + lock (ds) { + primDa.Update(ds, "prims"); + shapeDa.Update(ds, "primshapes"); + ds.AcceptChanges(); + } } - // public class TextureBlock - // { - // public byte[] TextureData; - // public byte[] ExtraParams = new byte[1]; - - // public TextureBlock(byte[] data) - // { - // TextureData = data; - // } - - // public TextureBlock() - // { - - // } - - // public string ToXMLString() - // { - // StringWriter sw = new StringWriter(); - // XmlTextWriter writer = new XmlTextWriter(sw); - // XmlSerializer serializer = new XmlSerializer(typeof(TextureBlock)); - // serializer.Serialize(writer, this); - // return sw.ToString(); - // } - - // public static TextureBlock FromXmlString(string xmlData) - // { - // TextureBlock textureEntry = null; - // StringReader sr = new StringReader(xmlData); - // XmlTextReader reader = new XmlTextReader(sr); - // XmlSerializer serializer = new XmlSerializer(typeof(TextureBlock)); - // textureEntry = (TextureBlock)serializer.Deserialize(reader); - // reader.Close(); - // sr.Close(); - // return textureEntry; - // } - // } + public void Shutdown() + { + Commit(); + } /*********************************************************************** * -- cgit v1.1