Removing locking on requests in MySQLAssetData.
These locks are not necessary since the connection is taken from the underlying mysql pool and not shared. Such locking is already not done by some other parts of OpenSim.Data.MySQL. Pointed out by arribasim-devbullet-2.82
parent
4e03d352c3
commit
f129b824c3
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@ -45,7 +45,6 @@ namespace OpenSim.Data.MySQL
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private string m_connectionString;
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private object m_dbLock = new object();
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protected virtual Assembly Assembly
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{
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@ -107,47 +106,46 @@ namespace OpenSim.Data.MySQL
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override public AssetBase GetAsset(UUID assetID)
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{
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AssetBase asset = null;
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lock (m_dbLock)
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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dbcon.Open();
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using (MySqlCommand cmd = new MySqlCommand(
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"SELECT name, description, assetType, local, temporary, asset_flags, CreatorID, data FROM assets WHERE id=?id",
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dbcon))
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{
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dbcon.Open();
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cmd.Parameters.AddWithValue("?id", assetID.ToString());
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using (MySqlCommand cmd = new MySqlCommand(
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"SELECT name, description, assetType, local, temporary, asset_flags, CreatorID, data FROM assets WHERE id=?id",
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dbcon))
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try
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{
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cmd.Parameters.AddWithValue("?id", assetID.ToString());
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try
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using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow))
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{
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using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow))
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if (dbReader.Read())
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{
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if (dbReader.Read())
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{
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asset = new AssetBase(assetID, (string)dbReader["name"], (sbyte)dbReader["assetType"], dbReader["CreatorID"].ToString());
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asset.Data = (byte[])dbReader["data"];
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asset.Description = (string)dbReader["description"];
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asset = new AssetBase(assetID, (string)dbReader["name"], (sbyte)dbReader["assetType"], dbReader["CreatorID"].ToString());
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asset.Data = (byte[])dbReader["data"];
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asset.Description = (string)dbReader["description"];
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string local = dbReader["local"].ToString();
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if (local.Equals("1") || local.Equals("true", StringComparison.InvariantCultureIgnoreCase))
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asset.Local = true;
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else
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asset.Local = false;
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string local = dbReader["local"].ToString();
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if (local.Equals("1") || local.Equals("true", StringComparison.InvariantCultureIgnoreCase))
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asset.Local = true;
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else
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asset.Local = false;
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asset.Temporary = Convert.ToBoolean(dbReader["temporary"]);
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asset.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]);
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}
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asset.Temporary = Convert.ToBoolean(dbReader["temporary"]);
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asset.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]);
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format("[ASSETS DB]: MySql failure fetching asset {0}. Exception ", assetID), e);
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format("[ASSETS DB]: MySql failure fetching asset {0}. Exception ", assetID), e);
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}
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}
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}
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return asset;
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}
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@ -158,100 +156,94 @@ namespace OpenSim.Data.MySQL
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/// <remarks>On failure : Throw an exception and attempt to reconnect to database</remarks>
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override public void StoreAsset(AssetBase asset)
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{
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lock (m_dbLock)
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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dbcon.Open();
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dbcon.Open();
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using (MySqlCommand cmd =
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new MySqlCommand(
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"replace INTO assets(id, name, description, assetType, local, temporary, create_time, access_time, asset_flags, CreatorID, data)" +
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"VALUES(?id, ?name, ?description, ?assetType, ?local, ?temporary, ?create_time, ?access_time, ?asset_flags, ?CreatorID, ?data)",
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dbcon))
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using (MySqlCommand cmd =
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new MySqlCommand(
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"replace INTO assets(id, name, description, assetType, local, temporary, create_time, access_time, asset_flags, CreatorID, data)" +
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"VALUES(?id, ?name, ?description, ?assetType, ?local, ?temporary, ?create_time, ?access_time, ?asset_flags, ?CreatorID, ?data)",
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dbcon))
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{
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string assetName = asset.Name;
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if (asset.Name.Length > AssetBase.MAX_ASSET_NAME)
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{
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string assetName = asset.Name;
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if (asset.Name.Length > AssetBase.MAX_ASSET_NAME)
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assetName = asset.Name.Substring(0, AssetBase.MAX_ASSET_NAME);
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m_log.WarnFormat(
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"[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add",
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asset.Name, asset.ID, asset.Name.Length, assetName.Length);
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}
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string assetDescription = asset.Description;
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if (asset.Description.Length > AssetBase.MAX_ASSET_DESC)
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{
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assetDescription = asset.Description.Substring(0, AssetBase.MAX_ASSET_DESC);
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m_log.WarnFormat(
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"[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add",
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asset.Description, asset.ID, asset.Description.Length, assetDescription.Length);
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}
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try
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{
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using (cmd)
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{
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assetName = asset.Name.Substring(0, AssetBase.MAX_ASSET_NAME);
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m_log.WarnFormat(
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"[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add",
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asset.Name, asset.ID, asset.Name.Length, assetName.Length);
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}
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string assetDescription = asset.Description;
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if (asset.Description.Length > AssetBase.MAX_ASSET_DESC)
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{
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assetDescription = asset.Description.Substring(0, AssetBase.MAX_ASSET_DESC);
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m_log.WarnFormat(
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"[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add",
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asset.Description, asset.ID, asset.Description.Length, assetDescription.Length);
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}
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try
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{
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using (cmd)
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{
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// create unix epoch time
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int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow);
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cmd.Parameters.AddWithValue("?id", asset.ID);
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cmd.Parameters.AddWithValue("?name", assetName);
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cmd.Parameters.AddWithValue("?description", assetDescription);
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cmd.Parameters.AddWithValue("?assetType", asset.Type);
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cmd.Parameters.AddWithValue("?local", asset.Local);
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cmd.Parameters.AddWithValue("?temporary", asset.Temporary);
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cmd.Parameters.AddWithValue("?create_time", now);
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cmd.Parameters.AddWithValue("?access_time", now);
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cmd.Parameters.AddWithValue("?CreatorID", asset.Metadata.CreatorID);
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cmd.Parameters.AddWithValue("?asset_flags", (int)asset.Flags);
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cmd.Parameters.AddWithValue("?data", asset.Data);
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cmd.ExecuteNonQuery();
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format(
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"[ASSET DB]: MySQL failure creating asset {0} with name {1}. Exception ",
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asset.FullID, asset.Name)
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, e);
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// create unix epoch time
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int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow);
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cmd.Parameters.AddWithValue("?id", asset.ID);
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cmd.Parameters.AddWithValue("?name", assetName);
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cmd.Parameters.AddWithValue("?description", assetDescription);
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cmd.Parameters.AddWithValue("?assetType", asset.Type);
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cmd.Parameters.AddWithValue("?local", asset.Local);
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cmd.Parameters.AddWithValue("?temporary", asset.Temporary);
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cmd.Parameters.AddWithValue("?create_time", now);
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cmd.Parameters.AddWithValue("?access_time", now);
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cmd.Parameters.AddWithValue("?CreatorID", asset.Metadata.CreatorID);
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cmd.Parameters.AddWithValue("?asset_flags", (int)asset.Flags);
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cmd.Parameters.AddWithValue("?data", asset.Data);
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cmd.ExecuteNonQuery();
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format(
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"[ASSET DB]: MySQL failure creating asset {0} with name {1}. Exception ",
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asset.FullID, asset.Name)
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, e);
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}
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}
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}
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}
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private void UpdateAccessTime(AssetBase asset)
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{
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lock (m_dbLock)
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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dbcon.Open();
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dbcon.Open();
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using (MySqlCommand cmd
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= new MySqlCommand("update assets set access_time=?access_time where id=?id", dbcon))
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using (MySqlCommand cmd
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= new MySqlCommand("update assets set access_time=?access_time where id=?id", dbcon))
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{
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try
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{
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try
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using (cmd)
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{
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using (cmd)
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{
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// create unix epoch time
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int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow);
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cmd.Parameters.AddWithValue("?id", asset.ID);
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cmd.Parameters.AddWithValue("?access_time", now);
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cmd.ExecuteNonQuery();
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format(
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"[ASSETS DB]: Failure updating access_time for asset {0} with name {1}. Exception ",
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asset.FullID, asset.Name),
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e);
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// create unix epoch time
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int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow);
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cmd.Parameters.AddWithValue("?id", asset.ID);
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cmd.Parameters.AddWithValue("?access_time", now);
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cmd.ExecuteNonQuery();
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format(
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"[ASSETS DB]: Failure updating access_time for asset {0} with name {1}. Exception ",
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asset.FullID, asset.Name),
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e);
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}
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}
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}
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}
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@ -271,20 +263,17 @@ namespace OpenSim.Data.MySQL
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string ids = "'" + string.Join("','", uuids) + "'";
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string sql = string.Format("SELECT id FROM assets WHERE id IN ({0})", ids);
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lock (m_dbLock)
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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dbcon.Open();
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using (MySqlCommand cmd = new MySqlCommand(sql, dbcon))
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{
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dbcon.Open();
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using (MySqlCommand cmd = new MySqlCommand(sql, dbcon))
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using (MySqlDataReader dbReader = cmd.ExecuteReader())
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{
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using (MySqlDataReader dbReader = cmd.ExecuteReader())
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while (dbReader.Read())
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{
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while (dbReader.Read())
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{
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UUID id = DBGuid.FromDB(dbReader["id"]);
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exist.Add(id);
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}
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UUID id = DBGuid.FromDB(dbReader["id"]);
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exist.Add(id);
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}
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}
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}
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@ -309,50 +298,47 @@ namespace OpenSim.Data.MySQL
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{
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List<AssetMetadata> retList = new List<AssetMetadata>(count);
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lock (m_dbLock)
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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dbcon.Open();
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dbcon.Open();
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using (MySqlCommand cmd
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= new MySqlCommand(
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"SELECT name,description,assetType,temporary,id,asset_flags,CreatorID FROM assets LIMIT ?start, ?count",
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dbcon))
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using (MySqlCommand cmd
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= new MySqlCommand(
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"SELECT name,description,assetType,temporary,id,asset_flags,CreatorID FROM assets LIMIT ?start, ?count",
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dbcon))
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{
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cmd.Parameters.AddWithValue("?start", start);
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cmd.Parameters.AddWithValue("?count", count);
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try
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{
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cmd.Parameters.AddWithValue("?start", start);
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cmd.Parameters.AddWithValue("?count", count);
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try
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using (MySqlDataReader dbReader = cmd.ExecuteReader())
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{
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using (MySqlDataReader dbReader = cmd.ExecuteReader())
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while (dbReader.Read())
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{
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while (dbReader.Read())
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{
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AssetMetadata metadata = new AssetMetadata();
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metadata.Name = (string)dbReader["name"];
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metadata.Description = (string)dbReader["description"];
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metadata.Type = (sbyte)dbReader["assetType"];
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metadata.Temporary = Convert.ToBoolean(dbReader["temporary"]); // Not sure if this is correct.
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metadata.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]);
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metadata.FullID = DBGuid.FromDB(dbReader["id"]);
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metadata.CreatorID = dbReader["CreatorID"].ToString();
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// Current SHA1s are not stored/computed.
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metadata.SHA1 = new byte[] { };
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retList.Add(metadata);
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}
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AssetMetadata metadata = new AssetMetadata();
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metadata.Name = (string)dbReader["name"];
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metadata.Description = (string)dbReader["description"];
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metadata.Type = (sbyte)dbReader["assetType"];
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metadata.Temporary = Convert.ToBoolean(dbReader["temporary"]); // Not sure if this is correct.
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metadata.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]);
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metadata.FullID = DBGuid.FromDB(dbReader["id"]);
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metadata.CreatorID = dbReader["CreatorID"].ToString();
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// Current SHA1s are not stored/computed.
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metadata.SHA1 = new byte[] { };
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retList.Add(metadata);
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format(
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"[ASSETS DB]: MySql failure fetching asset set from {0}, count {1}. Exception ",
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start, count),
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e);
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}
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}
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catch (Exception e)
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{
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m_log.Error(
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string.Format(
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"[ASSETS DB]: MySql failure fetching asset set from {0}, count {1}. Exception ",
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start, count),
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e);
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}
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}
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}
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@ -362,17 +348,14 @@ namespace OpenSim.Data.MySQL
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public override bool Delete(string id)
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{
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lock (m_dbLock)
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
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{
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dbcon.Open();
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dbcon.Open();
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using (MySqlCommand cmd = new MySqlCommand("delete from assets where id=?id", dbcon))
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{
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cmd.Parameters.AddWithValue("?id", id);
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cmd.ExecuteNonQuery();
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}
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using (MySqlCommand cmd = new MySqlCommand("delete from assets where id=?id", dbcon))
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{
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cmd.Parameters.AddWithValue("?id", id);
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cmd.ExecuteNonQuery();
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}
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}
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