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authorJustin Clark-Casey (justincc)2012-03-03 01:43:36 +0000
committerJustin Clark-Casey (justincc)2012-03-03 01:43:36 +0000
commit3780df8a329c81471c486acab7f641f7742267f4 (patch)
treee36efba7a25e305d5f9d381b18af8a1b9dac96b0 /OpenSim/Data/MySQL/MySQLXAssetData.cs
parentImplement basic gzip compression for xassetdata (diff)
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Make asset compression optional. Currently set to false and not configurable from outside MySQLXAssetData.
Diffstat (limited to '')
-rw-r--r--OpenSim/Data/MySQL/MySQLXAssetData.cs40
1 files changed, 24 insertions, 16 deletions
diff --git a/OpenSim/Data/MySQL/MySQLXAssetData.cs b/OpenSim/Data/MySQL/MySQLXAssetData.cs
index bb03871..bfc1c55 100644
--- a/OpenSim/Data/MySQL/MySQLXAssetData.cs
+++ b/OpenSim/Data/MySQL/MySQLXAssetData.cs
@@ -44,6 +44,7 @@ namespace OpenSim.Data.MySQL
44 { 44 {
45 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); 45 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
46 46
47 private bool m_enableCompression = false;
47 private string m_connectionString; 48 private string m_connectionString;
48 private object m_dbLock = new object(); 49 private object m_dbLock = new object();
49 50
@@ -142,16 +143,19 @@ namespace OpenSim.Data.MySQL
142 asset.Temporary = Convert.ToBoolean(dbReader["temporary"]); 143 asset.Temporary = Convert.ToBoolean(dbReader["temporary"]);
143 asset.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]); 144 asset.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]);
144 145
145 using (GZipStream decompressionStream = new GZipStream(new MemoryStream(asset.Data), CompressionMode.Decompress)) 146 if (m_enableCompression)
146 { 147 {
147 MemoryStream outputStream = new MemoryStream(); 148 using (GZipStream decompressionStream = new GZipStream(new MemoryStream(asset.Data), CompressionMode.Decompress))
148 WebUtil.CopyTo(decompressionStream, outputStream, int.MaxValue); 149 {
149// int compressedLength = asset.Data.Length; 150 MemoryStream outputStream = new MemoryStream();
150 asset.Data = outputStream.ToArray(); 151 WebUtil.CopyTo(decompressionStream, outputStream, int.MaxValue);
151 152 // int compressedLength = asset.Data.Length;
152// m_log.DebugFormat( 153 asset.Data = outputStream.ToArray();
153// "[XASSET DB]: Decompressed {0} {1} to {2} bytes from {3}", 154
154// asset.ID, asset.Name, asset.Data.Length, compressedLength); 155 // m_log.DebugFormat(
156 // "[XASSET DB]: Decompressed {0} {1} to {2} bytes from {3}",
157 // asset.ID, asset.Name, asset.Data.Length, compressedLength);
158 }
155 } 159 }
156 } 160 }
157 } 161 }
@@ -199,15 +203,19 @@ namespace OpenSim.Data.MySQL
199 byte[] compressedData; 203 byte[] compressedData;
200 MemoryStream outputStream = new MemoryStream(); 204 MemoryStream outputStream = new MemoryStream();
201 205
202 using (GZipStream compressionStream = new GZipStream(outputStream, CompressionMode.Compress, false)) 206 if (m_enableCompression)
203 { 207 {
204 Console.WriteLine(WebUtil.CopyTo(new MemoryStream(asset.Data), compressionStream, int.MaxValue)); 208 using (GZipStream compressionStream = new GZipStream(outputStream, CompressionMode.Compress, false))
205 // We have to close the compression stream in order to make sure it writes everything out to the underlying memory output stream. 209 {
206 compressionStream.Close(); 210 // Console.WriteLine(WebUtil.CopyTo(new MemoryStream(asset.Data), compressionStream, int.MaxValue));
207 compressedData = outputStream.ToArray(); 211 // We have to close the compression stream in order to make sure it writes everything out to the underlying memory output stream.
212 compressionStream.Close();
213 compressedData = outputStream.ToArray();
214 asset.Data = compressedData;
215 }
208 } 216 }
209 217
210 string hash = Util.SHA1Hash(compressedData); 218 string hash = Util.SHA1Hash(asset.Data);
211 219
212// m_log.DebugFormat( 220// m_log.DebugFormat(
213// "[XASSET DB]: Compressed data size for {0} {1}, hash {2} is {3}", 221// "[XASSET DB]: Compressed data size for {0} {1}, hash {2} is {3}",
@@ -257,7 +265,7 @@ namespace OpenSim.Data.MySQL
257 dbcon)) 265 dbcon))
258 { 266 {
259 cmd.Parameters.AddWithValue("?hash", hash); 267 cmd.Parameters.AddWithValue("?hash", hash);
260 cmd.Parameters.AddWithValue("?data", compressedData); 268 cmd.Parameters.AddWithValue("?data", asset.Data);
261 cmd.ExecuteNonQuery(); 269 cmd.ExecuteNonQuery();
262 } 270 }
263 } 271 }