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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Martin Hentschel <info@cl-soft.de>
*
*/
using System;
using System.Text;
using CCodeGeneration;
namespace LwipSnmpCodeGeneration
{
public class SnmpScalarNodeBits : SnmpScalarNode
{
private readonly uint bitCount;
public SnmpScalarNodeBits(SnmpTreeNode parentNode, uint bitCount)
: base(parentNode)
{
this.DataType = SnmpDataType.Bits;
this.bitCount = bitCount;
}
public override void GenerateGetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string retLenVarName)
{
container.AddCode(String.Format(
"{0} = snmp_encode_bits(({1} *){2}, SNMP_MAX_VALUE_SIZE, 0 /* TODO: pass real value here */, {3});",
retLenVarName,
LwipDefs.Vt_U8,
valueVarName,
this.bitCount));
valueVarUsed = true;
}
public override void GenerateTestMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
{
if (this.Restrictions.Count > 0)
{
const string bitVarName = "bits";
container.Declarations.Add(new VariableDeclaration(new VariableType(bitVarName, LwipDefs.Vt_U32)));
IfThenElse ite = new IfThenElse(String.Format(
"snmp_decode_bits(({0} *){1}, {2}, &{3}) == ERR_OK",
LwipDefs.Vt_U8,
valueVarName,
lenVarName,
bitVarName));
valueVarUsed = true;
lenVarUsed = true;
StringBuilder innerIfCond = new StringBuilder();
foreach (IRestriction restriction in this.Restrictions)
{
innerIfCond.Append(restriction.GetCheckCodeValid(bitVarName));
innerIfCond.Append(" || ");
}
innerIfCond.Length -= 4;
IfThenElse innerIte = new IfThenElse(innerIfCond.ToString());
innerIte.AddCode(String.Format("{0} = {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok));
ite.AddElement(innerIte);
container.AddElement(ite);
}
else
{
base.GenerateTestMethodCode(container, valueVarName, ref valueVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
}
}
public override void GenerateSetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
{
const string bitVarName = "bits";
container.Declarations.Add(new VariableDeclaration(new VariableType(bitVarName, LwipDefs.Vt_U32)));
IfThenElse ite = new IfThenElse(String.Format(
"snmp_decode_bits(({0} *){1}, {2}, &{3}) == ERR_OK",
LwipDefs.Vt_U8,
valueVarName,
lenVarName,
bitVarName));
valueVarUsed = true;
lenVarUsed = true;
ite.AddElement(new Comment(String.Format("TODO: store new value contained in '{0}' here", bitVarName), singleLine: true));
container.AddElement(ite);
}
}
}
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