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-rw-r--r--OpenSim/Region/Framework/Interfaces/ISimulationDataStore.cs21
1 files changed, 21 insertions, 0 deletions
diff --git a/OpenSim/Region/Framework/Interfaces/ISimulationDataStore.cs b/OpenSim/Region/Framework/Interfaces/ISimulationDataStore.cs
index 3787ca0..c936a84 100644
--- a/OpenSim/Region/Framework/Interfaces/ISimulationDataStore.cs
+++ b/OpenSim/Region/Framework/Interfaces/ISimulationDataStore.cs
@@ -134,5 +134,26 @@ namespace OpenSim.Region.Framework.Interfaces
134 Dictionary<string, string> GetExtra(UUID regionID); 134 Dictionary<string, string> GetExtra(UUID regionID);
135 135
136 void Shutdown(); 136 void Shutdown();
137 }
138
139 // The terrain is stored as a blob in the database with a 'revision' field.
140 // Some implementations of terrain storage would fill the revision field with
141 // the time the terrain was stored. When real revisions were added and this
142 // feature removed, that left some old entries with the time in the revision
143 // field.
144 // Thus, if revision is greater than 'RevisionHigh' then terrain db entry is
145 // left over and it is presumed to be 'Legacy256'.
146 // Numbers are arbitrary and are chosen to to reduce possible mis-interpretation.
147 // If a revision does not match any of these, it is assumed to be Legacy256.
148 public enum DBTerrainRevision
149 {
150 // Terrain is 'double[256,256]'
151 Legacy256 = 11,
152 // Terrain is 'int32, int32, float[,]' where the shorts are X and Y dimensions
153 // The dimensions are presumed to be multiples of 16 and, more likely, multiples of 256.
154 Variable2D = 22,
155 // A revision that is not listed above or any revision greater than this value is 'Legacy256'.
156 RevisionHigh = 1234
137 } 157 }
158
138} 159}