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96afb12087
This converts the CMake license to a pure 3-clause OSI-approved BSD License. We drop the previous license clause requiring modified versions to be plainly marked. We also update the CMake copyright to cover the full development time range.
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmVariableWatch_h
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#define cmVariableWatch_h
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#include "cmStandardIncludes.h"
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class cmMakefile;
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/** \class cmVariableWatch
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* \brief Helper class for watching of variable accesses.
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*
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* Calls function when variable is accessed
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*/
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class cmVariableWatch
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{
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public:
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typedef void (*WatchMethod)(const std::string& variable, int access_type,
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void* client_data, const char* newValue, const cmMakefile* mf);
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cmVariableWatch();
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~cmVariableWatch();
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/**
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* Add watch to the variable
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*/
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void AddWatch(const std::string& variable, WatchMethod method,
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void* client_data=0);
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void RemoveWatch(const std::string& variable, WatchMethod method);
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/**
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* This method is called when variable is accessed
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*/
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void VariableAccessed(const std::string& variable, int access_type,
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const char* newValue, const cmMakefile* mf) const;
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/**
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* Different access types.
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*/
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enum
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{
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VARIABLE_READ_ACCESS = 0,
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UNKNOWN_VARIABLE_READ_ACCESS,
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UNKNOWN_VARIABLE_DEFINED_ACCESS,
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ALLOWED_UNKNOWN_VARIABLE_READ_ACCESS,
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VARIABLE_MODIFIED_ACCESS,
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VARIABLE_REMOVED_ACCESS,
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NO_ACCESS
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};
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/**
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* Return the access as string
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*/
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static const char* GetAccessAsString(int access_type);
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protected:
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struct Pair
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{
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WatchMethod Method;
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void* ClientData;
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Pair() : Method(0), ClientData(0) {}
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};
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typedef std::vector< Pair > VectorOfPairs;
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typedef std::map<cmStdString, VectorOfPairs > StringToVectorOfPairs;
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StringToVectorOfPairs WatchMap;
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};
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#endif
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