[457] | 1 | /*
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| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without modification,
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| 6 | * are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright notice,
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| 9 | * this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | * this list of conditions and the following disclaimer in the documentation
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| 12 | * and/or other materials provided with the distribution.
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| 13 | * 3. The name of the author may not be used to endorse or promote products
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| 14 | * derived from this software without specific prior written permission.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 25 | * OF SUCH DAMAGE.
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| 26 | *
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| 27 | * This file is part of the lwIP TCP/IP stack.
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| 28 | *
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| 29 | * Author: Martin Hentschel <info@cl-soft.de>
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| 30 | *
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| 31 | */
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| 32 |
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| 33 | using System;
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| 34 | using System.Text;
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| 35 | using CCodeGeneration;
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| 36 |
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| 37 | namespace LwipSnmpCodeGeneration
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| 38 | {
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| 39 | public class SnmpScalarNodeBits : SnmpScalarNode
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| 40 | {
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| 41 | private readonly uint bitCount;
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| 42 |
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| 43 | public SnmpScalarNodeBits(SnmpTreeNode parentNode, uint bitCount)
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| 44 | : base(parentNode)
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| 45 | {
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| 46 | this.DataType = SnmpDataType.Bits;
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| 47 | this.bitCount = bitCount;
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| 48 | }
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| 49 |
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| 50 | public override void GenerateGetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string retLenVarName)
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| 51 | {
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| 52 | container.AddCode(String.Format(
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| 53 | "{0} = snmp_encode_bits(({1} *){2}, SNMP_MAX_VALUE_SIZE, 0 /* TODO: pass real value here */, {3});",
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| 54 | retLenVarName,
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| 55 | LwipDefs.Vt_U8,
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| 56 | valueVarName,
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| 57 | this.bitCount));
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| 58 |
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| 59 | valueVarUsed = true;
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| 60 | }
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| 61 |
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| 62 | public override void GenerateTestMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
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| 63 | {
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| 64 | if (this.Restrictions.Count > 0)
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| 65 | {
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| 66 | const string bitVarName = "bits";
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| 67 |
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| 68 | container.Declarations.Add(new VariableDeclaration(new VariableType(bitVarName, LwipDefs.Vt_U32)));
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| 69 |
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| 70 | IfThenElse ite = new IfThenElse(String.Format(
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| 71 | "snmp_decode_bits(({0} *){1}, {2}, &{3}) == ERR_OK",
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| 72 | LwipDefs.Vt_U8,
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| 73 | valueVarName,
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| 74 | lenVarName,
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| 75 | bitVarName));
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| 76 |
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| 77 | valueVarUsed = true;
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| 78 | lenVarUsed = true;
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| 79 |
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| 80 | StringBuilder innerIfCond = new StringBuilder();
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| 81 | foreach (IRestriction restriction in this.Restrictions)
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| 82 | {
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| 83 | innerIfCond.Append(restriction.GetCheckCodeValid(bitVarName));
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| 84 | innerIfCond.Append(" || ");
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| 85 | }
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| 86 |
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| 87 | innerIfCond.Length -= 4;
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| 88 |
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| 89 | IfThenElse innerIte = new IfThenElse(innerIfCond.ToString());
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| 90 | innerIte.AddCode(String.Format("{0} = {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok));
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| 91 | ite.AddElement(innerIte);
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| 92 | container.AddElement(ite);
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| 93 | }
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| 94 | else
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| 95 | {
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| 96 | base.GenerateTestMethodCode(container, valueVarName, ref valueVarUsed, lenVarName, ref lenVarUsed, retErrVarName);
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| 97 | }
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| 98 | }
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| 99 |
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| 100 | public override void GenerateSetMethodCode(CodeContainerBase container, string valueVarName, ref bool valueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)
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| 101 | {
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| 102 | const string bitVarName = "bits";
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| 103 |
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| 104 | container.Declarations.Add(new VariableDeclaration(new VariableType(bitVarName, LwipDefs.Vt_U32)));
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| 105 |
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| 106 | IfThenElse ite = new IfThenElse(String.Format(
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| 107 | "snmp_decode_bits(({0} *){1}, {2}, &{3}) == ERR_OK",
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| 108 | LwipDefs.Vt_U8,
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| 109 | valueVarName,
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| 110 | lenVarName,
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| 111 | bitVarName));
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| 112 |
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| 113 | valueVarUsed = true;
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| 114 | lenVarUsed = true;
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| 115 |
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| 116 | ite.AddElement(new Comment(String.Format("TODO: store new value contained in '{0}' here", bitVarName), singleLine: true));
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| 117 |
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| 118 | container.AddElement(ite);
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| 119 | }
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| 120 | }
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| 121 | }
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