diff options
Diffstat (limited to 'contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs')
| -rw-r--r-- | contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs b/contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs new file mode 100644 index 00000000000..f5c558c56a9 --- /dev/null +++ b/contrib/apps/LwipMibCompiler/LwipSnmpCodeGeneration/SnmpScalarAggregationNode.cs @@ -0,0 +1,293 @@ +/* + * 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.Collections.Generic; +using System.Globalization; +using CCodeGeneration; + +namespace LwipSnmpCodeGeneration +{ + public abstract class SnmpScalarAggregationNode: SnmpNode + { + private bool getMethodRequired = false; + private bool testMethodRequired = false; + private bool setMethodRequired = false; + + protected SnmpScalarAggregationNode(SnmpTreeNode parentNode) + : base(parentNode) + { + } + + protected virtual string GetMethodName + { + get { return this.FullNodeName + LwipDefs.FnctSuffix_GetValue; } + } + + protected bool GetMethodRequired + { + get { return this.getMethodRequired; } + } + + protected virtual string TestMethodName + { + get { return this.FullNodeName + LwipDefs.FnctSuffix_SetTest; } + } + + protected bool TestMethodRequired + { + get { return this.testMethodRequired; } + } + + protected virtual string SetMethodName + { + get { return this.FullNodeName + LwipDefs.FnctSuffix_SetValue; } + } + + protected bool SetMethodRequired + { + get { return this.setMethodRequired; } + } + + protected abstract IEnumerable<SnmpScalarNode> AggregatedScalarNodes + { + get; + } + + public override void Analyze() + { + base.Analyze(); + + this.getMethodRequired = false; + this.testMethodRequired = false; + this.setMethodRequired = false; + + foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) + { + if ((scalarNode.AccessMode == SnmpAccessMode.ReadOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) + { + this.getMethodRequired = true; + } + if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) + { + this.testMethodRequired = true; + this.setMethodRequired = true; + } + + if (this.getMethodRequired && this.setMethodRequired) + { + break; + } + } + } + + protected void GenerateAggregatedCode(MibCFile mibFile, VariableType instanceType, string switchSelector, bool generateDeclarations = true, bool generateImplementations = true) + { + if (this.getMethodRequired) + { + FunctionDeclaration getMethodDecl = new FunctionDeclaration(this.GetMethodName, isStatic: true); + getMethodDecl.Parameter.Add(instanceType); + getMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*")); + getMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_S16); + + if (generateDeclarations) + { + mibFile.Declarations.Add(getMethodDecl); + } + if (generateImplementations) + { + Function getMethod = Function.FromDeclaration(getMethodDecl); + GenerateGetMethodCode(getMethod, switchSelector); + mibFile.Implementation.Add(getMethod); + } + } + + if (this.testMethodRequired) + { + FunctionDeclaration testMethodDecl = new FunctionDeclaration(this.TestMethodName, isStatic: true); + testMethodDecl.Parameter.Add(instanceType); + testMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16)); + testMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*")); + testMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err); + + if (generateDeclarations) + { + mibFile.Declarations.Add(testMethodDecl); + } + if (generateImplementations) + { + Function testMethod = Function.FromDeclaration(testMethodDecl); + GenerateTestMethodCode(testMethod, switchSelector); + mibFile.Implementation.Add(testMethod); + } + } + + if (this.setMethodRequired) + { + FunctionDeclaration setMethodDecl = new FunctionDeclaration(this.SetMethodName, isStatic: true); + setMethodDecl.Parameter.Add(instanceType); + setMethodDecl.Parameter.Add(new VariableType("len", LwipDefs.Vt_U16)); + setMethodDecl.Parameter.Add(new VariableType("value", VariableType.VoidString, "*")); + setMethodDecl.ReturnType = new VariableType(null, LwipDefs.Vt_Snmp_err); + + if (generateDeclarations) + { + mibFile.Declarations.Add(setMethodDecl); + } + if (generateImplementations) + { + Function setMethod = Function.FromDeclaration(setMethodDecl); + GenerateSetMethodCode(setMethod, switchSelector); + mibFile.Implementation.Add(setMethod); + } + } + } + + protected virtual void GenerateGetMethodCode(Function getMethod, string switchSelector) + { + VariableDeclaration returnValue = new VariableDeclaration((VariableType)getMethod.ReturnType.Clone()); + returnValue.Type.Name = "value_len"; + getMethod.Declarations.Add(returnValue); + Switch sw = new Switch(switchSelector); + + bool valueVarUsed = false; + + foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) + { + if ((scalarNode.AccessMode == SnmpAccessMode.ReadOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) + { + SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture)); + sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true)); + + scalarNode.GenerateGetMethodCode(sc, getMethod.Parameter[1].Name, ref valueVarUsed, returnValue.Type.Name); + + sw.Switches.Add(sc); + } + } + + SwitchCase scd = SwitchCase.GenerateDefault(); + scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", getMethod.Name, switchSelector); + scd.AddCodeFormat("{0} = 0;", returnValue.Type.Name); + sw.Switches.Add(scd); + + if (!valueVarUsed) + { + getMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", getMethod.Parameter[1].Name); + } + + getMethod.AddElement(sw); + + getMethod.AddCodeFormat("return {0};", returnValue.Type.Name); + } + + protected virtual void GenerateTestMethodCode(Function testMethod, string switchSelector) + { + VariableDeclaration returnValue = new VariableDeclaration((VariableType)testMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_WrongValue); + returnValue.Type.Name = "err"; + testMethod.Declarations.Add(returnValue); + Switch sw = new Switch(switchSelector); + + bool valueVarUsed = false; + bool lenVarUsed = false; + + foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) + { + if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) + { + SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture)); + sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true)); + + scalarNode.GenerateTestMethodCode(sc, testMethod.Parameter[2].Name, ref valueVarUsed, testMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name); + + sw.Switches.Add(sc); + } + } + + SwitchCase scd = SwitchCase.GenerateDefault(); + scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", testMethod.Name, switchSelector); + sw.Switches.Add(scd); + + if (!valueVarUsed) + { + testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[2].Name); + } + if (!lenVarUsed) + { + testMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", testMethod.Parameter[1].Name); + } + + testMethod.AddElement(sw); + + testMethod.AddCodeFormat("return {0};", returnValue.Type.Name); + } + + protected virtual void GenerateSetMethodCode(Function setMethod, string switchSelector) + { + VariableDeclaration returnValue = new VariableDeclaration((VariableType)setMethod.ReturnType.Clone(), LwipDefs.Def_ErrorCode_Ok); + returnValue.Type.Name = "err"; + setMethod.Declarations.Add(returnValue); + Switch sw = new Switch(switchSelector); + + bool valueVarUsed = false; + bool lenVarUsed = false; + + foreach (SnmpScalarNode scalarNode in this.AggregatedScalarNodes) + { + if ((scalarNode.AccessMode == SnmpAccessMode.WriteOnly) || (scalarNode.AccessMode == SnmpAccessMode.ReadWrite)) + { + SwitchCase sc = new SwitchCase(scalarNode.Oid.ToString(CultureInfo.InvariantCulture)); + sc.Declarations.Add(new Comment(scalarNode.Name, singleLine: true)); + + scalarNode.GenerateSetMethodCode(sc, setMethod.Parameter[2].Name, ref valueVarUsed, setMethod.Parameter[1].Name, ref lenVarUsed, returnValue.Type.Name); + + sw.Switches.Add(sc); + } + } + + SwitchCase scd = SwitchCase.GenerateDefault(); + scd.AddCodeFormat("LWIP_DEBUGF(SNMP_MIB_DEBUG,(\"{0}(): unknown id: %\"S32_F\"\\n\", {1}));", setMethod.Name, switchSelector); + sw.Switches.Add(scd); + + if (!valueVarUsed) + { + setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[2].Name); + } + if (!lenVarUsed) + { + setMethod.AddCodeFormat("LWIP_UNUSED_ARG({0});", setMethod.Parameter[1].Name); + } + + setMethod.AddElement(sw); + + setMethod.AddCodeFormat("return {0};", returnValue.Type.Name); + } + } +} |