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1 /*
2  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  *    this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  *    this list of conditions and the following disclaimer in the documentation
12  *    and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25  * OF SUCH DAMAGE.
26  *
27  * This file is part of the lwIP TCP/IP stack.
28  *
29  * Author: Martin Hentschel <info@cl-soft.de>
30  *
31  */
32 
33 using System;
34 using CCodeGeneration;
35 
36 namespace LwipSnmpCodeGeneration
37 {
38 	public class SnmpScalarNodeObjectIdentifier: SnmpScalarNode
39 	{
SnmpScalarNodeObjectIdentifier(SnmpTreeNode parentNode)40 		public SnmpScalarNodeObjectIdentifier(SnmpTreeNode parentNode)
41 			: base(parentNode)
42 		{
43 			this.DataType = SnmpDataType.ObjectIdentifier;
44 		}
45 
GenerateValueDeclaration(CodeContainerBase container, string variableName, string sourceName)46 		protected override bool GenerateValueDeclaration(CodeContainerBase container, string variableName, string sourceName)
47 		{
48 			container.AddDeclaration(new VariableDeclaration(
49 				new VariableType(variableName, LwipDefs.Vt_U32, "*"),
50 				"(" + new VariableType(null, LwipDefs.Vt_U32, "*") + ")" + sourceName));
51 
52 			return true;
53 		}
54 
GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName)55 		protected override void GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName)
56 		{
57 			container.AddElement(new Comment(String.Format("TODO: put requested value to '*{0}' here. '{0}' has to be interpreted as {1}[]", localValueVarName, LwipDefs.Vt_U32), singleLine: true));
58 			container.AddElement(EmptyLine.SingleLine);
59 			container.AddCode(String.Format("{0} = 0; // TODO: return real value length here (should be 'numOfElements * sizeof({1})')", retLenVarName, LwipDefs.Vt_U32));
60 		}
61 
GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)62 		protected override void GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
63 		{
64 			VariableDeclaration objIdLenVar = new VariableDeclaration(
65 				new VariableType(localValueVarName + "_len", LwipDefs.Vt_U8),
66 				String.Format("{0} / sizeof({1})", lenVarName, LwipDefs.Vt_U32));
67 			lenVarUsed = true;
68 
69 			container.Declarations.Add(objIdLenVar);
70 
71 			base.GenerateTestMethodCodeCore(container, localValueVarName, ref localValueVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
72 
73 			container.AddCode(String.Format("LWIP_UNUSED_ARG({0});", objIdLenVar.Type.Name));
74 		}
75 
GenerateSetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)76 		protected override void GenerateSetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
77 		{
78 			VariableDeclaration objIdLenVar = new VariableDeclaration(
79 				new VariableType(localValueVarName + "_len", LwipDefs.Vt_U8),
80 				String.Format("{0} / sizeof({1})", lenVarName, LwipDefs.Vt_U32));
81 			lenVarUsed = true;
82 
83 			container.Declarations.Add(objIdLenVar);
84 
85 			base.GenerateSetMethodCodeCore(container, localValueVarName, ref localValueVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
86 
87 			container.AddCode(String.Format("LWIP_UNUSED_ARG({0});", objIdLenVar.Type.Name));
88 		}
89 	}
90 }
91