New: IntervalDescriptor implementation file

Implements OCI calls that are required for basic OciInterval types handling

svn path=/trunk/mcs/; revision=130489

diff --git a/mcs/class/System.Data.OracleClient/System.Data.OracleClient.Oci/OciIntervalDescriptor.cs b/mcs/class/System.Data.OracleClient/System.Data.OracleClient.Oci/OciIntervalDescriptor.cs
new file mode 100644 (file)
index 0000000..c1a3aa0
--- /dev/null
+++ b/mcs/class/System.Data.OracleClient/System.Data.OracleClient.Oci/OciIntervalDescriptor.cs
@@ -0,0 +1,92 @@
+//
+// OciIntervalDescriptor.cs - used for an Oracle TIMESPAN/INTERVAL{YTM/DTS}
+//
+// Part of managed C#/.NET library System.Data.OracleClient.dll
+//
+// Part of the Mono class libraries at
+// mcs/class/System.Data.OracleClient/System.Data.OracleClient.Oci
+//
+// Assembly: System.Data.OracleClient.dll
+// Namespace: System.Data.OracleClient.Oci
+//
+// Author:
+//     Veerapuram Varadhan  <vvaradhan@novell.com>
+//
+// Copyright (C) Novell Inc, 2009
+//
+
+using System;
+using System.Data;
+using System.Data.OracleClient;
+using System.Runtime.InteropServices;
+
+namespace System.Data.OracleClient.Oci {
+       internal sealed class OciIntervalDescriptor : OciDescriptorHandle, IDisposable
+       {
+               #region Fields
+
+               OciErrorHandle errorHandle;
+               bool disposed = false;
+               
+               #endregion // Fields
+
+               #region Constructors
+
+               public OciIntervalDescriptor (OciHandle parent, OciHandleType type, IntPtr newHandle)
+                       : base (type, parent, newHandle)
+               {
+               }
+
+               #endregion // Constructors
+
+               #region Properties
+
+               public OciErrorHandle ErrorHandle {
+                       get { return errorHandle; }
+                       set { errorHandle = value; }
+               }
+
+               #endregion // Properties
+
+               #region Methods
+
+               protected override void Dispose (bool disposing)
+               {
+                       if (!disposed) {
+                               disposed = true;
+                               base.Dispose (disposing);
+                       }
+               }
+
+               public TimeSpan GetDayToSecond (OciHandle handle, OciErrorHandle errorHandle)
+               {
+                       int days = 0;
+                       int hours = 0;
+                       int mins = 0;
+                       int secs = 0;
+                       int fsec = 0;
+                       int fs = 0;
+                       
+                       OciCalls.OCIIntervalGetDaySecond (handle, errorHandle, out days, out hours, 
+                                                         out mins, out secs, out fsec, this.handle);
+                       if (fsec > 0) {
+                               int fseci = (int) fsec;
+                               fs = fseci / 1000000;
+                       }
+                       return new TimeSpan (days, hours, mins, secs, fs);                             
+               }
+               
+               public int GetYearToMonth (OciHandle handle, OciErrorHandle errorHandle)
+               {
+                       int years = 0;
+                       int months = 0;
+                       
+                       OciCalls.OCIIntervalGetYearMonth (handle, errorHandle, out years, out months, this.handle);
+                       
+                       return ((years * 12) + months);
+               }
+
+               #endregion // Methods
+       }
+}
+