Replace Close with Dispose for PORTABLE

4 files changed, 87 insertions, 22 deletions

diff --git a/crypto/src/util/zlib/ZDeflaterOutputStream.cs b/crypto/src/util/zlib/ZDeflaterOutputStream.cs

index 7ff6d31c8..5a70df21d 100644
--- a/crypto/src/util/zlib/ZDeflaterOutputStream.cs
+++ b/crypto/src/util/zlib/ZDeflaterOutputStream.cs
@@ -136,6 +136,24 @@ namespace Org.BouncyCastle.Utilities.Zlib {
             z=null;
         }
         
+#if PORTABLE
+        protected override void Disposing(bool disposing)
+        {
+            if (disposing)
+            {
+                try{
+                    try{Finish();}
+                    catch (IOException) {}
+                }
+                finally{
+                    End();
+                    Platform.Dispose(outp);
+                    outp=null;
+                }
+            }
+            base.Dispose(disposing);
+        }
+#else
         public override void Close() {
             try{
                 try{Finish();}
@@ -147,5 +165,6 @@ namespace Org.BouncyCastle.Utilities.Zlib {
                 outp=null;
             }
         }
+#endif
     }
 }
diff --git a/crypto/src/util/zlib/ZInflaterInputStream.cs b/crypto/src/util/zlib/ZInflaterInputStream.cs

index 170596e63..df51fc878 100644
--- a/crypto/src/util/zlib/ZInflaterInputStream.cs
+++ b/crypto/src/util/zlib/ZInflaterInputStream.cs
@@ -114,10 +114,22 @@ namespace Org.BouncyCastle.Utilities.Zlib {
         public override void WriteByte(byte b) {
         }
 
-        public override void Close() {
+#if PORTABLE
+        protected override void Disposing(bool disposing)
+        {
+            if (disposing)
+            {
+                Platform.Dispose(inp);
+            }
+            base.Dispose(disposing);
+        }
+#else
+        public override void Close()
+        {
             Platform.Dispose(inp);
         }
-    
+#endif
+
         public override int ReadByte() {
             if(Read(buf1, 0, 1)<=0)
                 return -1;
diff --git a/crypto/src/util/zlib/ZInputStream.cs b/crypto/src/util/zlib/ZInputStream.cs

index f0b3068fc..fe895a397 100644
--- a/crypto/src/util/zlib/ZInputStream.cs
+++ b/crypto/src/util/zlib/ZInputStream.cs
@@ -93,7 +93,21 @@ namespace Org.BouncyCastle.Utilities.Zlib
 		public sealed override bool CanSeek { get { return false; } }
 		public sealed override bool CanWrite { get { return false; } }
 
-		public override void Close()
+#if PORTABLE
+        protected override void Disposing(bool disposing)
+        {
+            if (disposing)
+            {
+			    if (!closed)
+			    {
+				    closed = true;
+                    Platform.Dispose(input);
+			    }
+            }
+            base.Dispose(disposing);
+        }
+#else
+        public override void Close()
 		{
 			if (!closed)
 			{
@@ -101,6 +115,7 @@ namespace Org.BouncyCastle.Utilities.Zlib
                 Platform.Dispose(input);
 			}
 		}
+#endif
 
 		public sealed override void Flush() {}
 
diff --git a/crypto/src/util/zlib/ZOutputStream.cs b/crypto/src/util/zlib/ZOutputStream.cs

index 7b49d6638..ca59d8e1f 100644
--- a/crypto/src/util/zlib/ZOutputStream.cs
+++ b/crypto/src/util/zlib/ZOutputStream.cs
@@ -95,32 +95,51 @@ namespace Org.BouncyCastle.Utilities.Zlib
         public sealed override bool CanSeek { get { return false; } }
         public sealed override bool CanWrite { get { return !closed; } }
 
+#if PORTABLE
+        protected override void Disposing(bool disposing)
+        {
+            if (disposing)
+            {
+			    if (this.closed)
+				    return;
+
+                DoClose();
+            }
+            base.Dispose(disposing);
+        }
+#else
 		public override void Close()
 		{
 			if (this.closed)
 				return;
 
-			try
-			{
-				try
-				{
-					Finish();
-				}
-				catch (IOException)
-				{
-					// Ignore
-				}
-			}
-			finally
-			{
-				this.closed = true;
-				End();
-                Platform.Dispose(output);
-				output = null;
-			}
+            DoClose();
 		}
+#endif
+
+        private void DoClose()
+        {
+            try
+            {
+                try
+                {
+                    Finish();
+                }
+                catch (IOException)
+                {
+                    // Ignore
+                }
+            }
+            finally
+            {
+                this.closed = true;
+                End();
+                Platform.Dispose(output);
+                output = null;
+            }
+        }
 
-		public virtual void End()
+        public virtual void End()
 		{
 			if (z == null)
 				return;