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293 lines
9.9 KiB
293 lines
9.9 KiB
/* |
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without modification, |
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* are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
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* OF SUCH DAMAGE. |
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* |
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* This file is part of the lwIP TCP/IP stack. |
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* |
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* Author: Martin Hentschel <info@cl-soft.de> |
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* |
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*/ |
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using System.Collections.Generic; |
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using System.Globalization; |
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using CCodeGeneration; |
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namespace LwipSnmpCodeGeneration |
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{ |
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public abstract class SnmpScalarAggregationNode: SnmpNode |
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{ |
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private bool getMethodRequired = false; |
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private bool testMethodRequired = false; |
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private bool setMethodRequired = false; |
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protected SnmpScalarAggregationNode(SnmpTreeNode parentNode) |
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: base(parentNode) |
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{ |
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} |
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protected virtual string GetMethodName |
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{ |
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get { return this.FullNodeName + LwipDefs.FnctSuffix_GetValue; } |
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} |
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protected bool GetMethodRequired |
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{ |
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get { return this.getMethodRequired; } |
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} |
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protected virtual string TestMethodName |
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{ |
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get { return this.FullNodeName + LwipDefs.FnctSuffix_SetTest; } |
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} |
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protected bool TestMethodRequired |
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{ |
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get { return this.testMethodRequired; } |
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} |
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protected virtual string SetMethodName |
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{ |
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get { return this.FullNodeName + LwipDefs.FnctSuffix_SetValue; } |
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} |
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protected bool SetMethodRequired |
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{ |
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get { return this.setMethodRequired; } |
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} |
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protected abstract IEnumerable<SnmpScalarNode> AggregatedScalarNodes |
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{ |
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get; |
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} |
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public override void Analyze() |
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{ |
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base.Analyze(); |
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this.getMethodRequired = false; |
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this.testMethodRequired = false; |
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this.setMethodRequired = false; |
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foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) |
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{ |
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if ((scalarNode.AccessMode == SnmpAccessMode.ReadOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) |
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{ |
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this.getMethodRequired = true; |
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} |
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if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) |
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{ |
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this.testMethodRequired = true; |
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this.setMethodRequired = true; |
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} |
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if (this.getMethodRequired && this.setMethodRequired) |
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{ |
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break; |
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} |
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} |
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} |
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protected void GenerateAggregatedCode(MibCFile mibFile, VariableType instanceType, string switchSelector, bool generateDeclarations = true, bool generateImplementations = true) |
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{ |
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if (this.getMethodRequired) |
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{ |
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FunctionDeclaration getMethodDecl = new FunctionDeclaration(this.GetMethodName, isStatic: true); |
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getMethodDecl.Parameter.Add(instanceType); |
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getMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*")); |
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getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_S16); |
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if (generateDeclarations) |
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{ |
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mibFile.Declarations.Add(getMethodDecl); |
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} |
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if (generateImplementations) |
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{ |
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Function getMethod = Function.FromDeclaration(getMethodDecl); |
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GenerateGetMethodCode(getMethod, switchSelector); |
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mibFile.Implementation.Add(getMethod); |
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} |
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} |
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if (this.testMethodRequired) |
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{ |
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FunctionDeclaration testMethodDecl = new FunctionDeclaration(this.TestMethodName, isStatic: true); |
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testMethodDecl.Parameter.Add(instanceType); |
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testMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16)); |
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testMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*")); |
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testMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err); |
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if (generateDeclarations) |
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{ |
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mibFile.Declarations.Add(testMethodDecl); |
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} |
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if (generateImplementations) |
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{ |
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Function testMethod = Function.FromDeclaration(testMethodDecl); |
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GenerateTestMethodCode(testMethod, switchSelector); |
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mibFile.Implementation.Add(testMethod); |
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} |
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} |
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if (this.setMethodRequired) |
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{ |
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FunctionDeclaration setMethodDecl = new FunctionDeclaration(this.SetMethodName, isStatic: true); |
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setMethodDecl.Parameter.Add(instanceType); |
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setMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16)); |
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setMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*")); |
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setMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err); |
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if (generateDeclarations) |
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{ |
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mibFile.Declarations.Add(setMethodDecl); |
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} |
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if (generateImplementations) |
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{ |
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Function setMethod = Function.FromDeclaration(setMethodDecl); |
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GenerateSetMethodCode(setMethod, switchSelector); |
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mibFile.Implementation.Add(setMethod); |
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} |
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} |
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} |
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protected virtual void GenerateGetMethodCode(Function getMethod, string switchSelector) |
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{ |
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VariableDeclaration returnValue = new VariableDeclaration((VariableType)getMethod.ReturnType.Clone()); |
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returnValue.Type.Name = "value_len"; |
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getMethod.Declarations.Add(returnValue); |
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Switch sw = new Switch(switchSelector); |
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bool valueVarUsed = false; |
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foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) |
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{ |
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if ((scalarNode.AccessMode == SnmpAccessMode.ReadOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) |
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{ |
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SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture)); |
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sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true)); |
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scalarNode.GenerateGetMethodCode(sc, getMethod.Parameter[1].Name, ref valueVarUsed, returnValue.Type.Name); |
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sw.Switches.Add(sc); |
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} |
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} |
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SwitchCase scd = SwitchCase.GenerateDefault(); |
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scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", getMethod.Name, switchSelector); |
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scd.AddCodeFormat("{0} = 0;", returnValue.Type.Name); |
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sw.Switches.Add(scd); |
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if (!valueVarUsed) |
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{ |
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getMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getMethod.Parameter[1].Name); |
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} |
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getMethod.AddElement(sw); |
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getMethod.AddCodeFormat("return {0};", returnValue.Type.Name); |
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} |
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protected virtual void GenerateTestMethodCode(Function testMethod, string switchSelector) |
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{ |
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VariableDeclaration returnValue = new VariableDeclaration((VariableType)testMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_WrongValue); |
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returnValue.Type.Name = "err"; |
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testMethod.Declarations.Add(returnValue); |
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Switch sw = new Switch(switchSelector); |
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bool valueVarUsed = false; |
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bool lenVarUsed = false; |
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foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) |
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{ |
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if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) |
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{ |
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SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture)); |
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sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true)); |
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scalarNode.GenerateTestMethodCode(sc, testMethod.Parameter[2].Name, ref valueVarUsed, testMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name); |
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sw.Switches.Add(sc); |
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} |
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} |
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SwitchCase scd = SwitchCase.GenerateDefault(); |
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scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", testMethod.Name, switchSelector); |
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sw.Switches.Add(scd); |
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if (!valueVarUsed) |
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{ |
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testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[2].Name); |
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} |
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if (!lenVarUsed) |
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{ |
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testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[1].Name); |
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} |
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testMethod.AddElement(sw); |
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testMethod.AddCodeFormat("return {0};", returnValue.Type.Name); |
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} |
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protected virtual void GenerateSetMethodCode(Function setMethod, string switchSelector) |
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{ |
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VariableDeclaration returnValue = new VariableDeclaration((VariableType)setMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_Ok); |
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returnValue.Type.Name = "err"; |
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setMethod.Declarations.Add(returnValue); |
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Switch sw = new Switch(switchSelector); |
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bool valueVarUsed = false; |
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bool lenVarUsed = false; |
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foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) |
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{ |
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if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) |
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{ |
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SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture)); |
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sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true)); |
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scalarNode.GenerateSetMethodCode(sc, setMethod.Parameter[2].Name, ref valueVarUsed, setMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name); |
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sw.Switches.Add(sc); |
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} |
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} |
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SwitchCase scd = SwitchCase.GenerateDefault(); |
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scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", setMethod.Name, switchSelector); |
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sw.Switches.Add(scd); |
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if (!valueVarUsed) |
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{ |
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setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[2].Name); |
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} |
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if (!lenVarUsed) |
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{ |
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setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[1].Name); |
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} |
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setMethod.AddElement(sw); |
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setMethod.AddCodeFormat("return {0};", returnValue.Type.Name); |
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} |
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} |
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}
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