mirror of
https://github.com/reactos/CMake.git
synced 2024-12-01 07:20:22 +00:00
34b397e8de
Now that watches are dependent on their client_data when adding, it also makes sense to allow matching the data for removal.
91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/*============================================================================
|
|
CMake - Cross Platform Makefile Generator
|
|
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
|
|
|
|
Distributed under the OSI-approved BSD License (the "License");
|
|
see accompanying file Copyright.txt for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even the
|
|
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
See the License for more information.
|
|
============================================================================*/
|
|
#ifndef cmVariableWatch_h
|
|
#define cmVariableWatch_h
|
|
|
|
#include "cmStandardIncludes.h"
|
|
|
|
class cmMakefile;
|
|
|
|
/** \class cmVariableWatch
|
|
* \brief Helper class for watching of variable accesses.
|
|
*
|
|
* Calls function when variable is accessed
|
|
*/
|
|
class cmVariableWatch
|
|
{
|
|
public:
|
|
typedef void (*WatchMethod)(const std::string& variable, int access_type,
|
|
void* client_data, const char* newValue, const cmMakefile* mf);
|
|
typedef void (*DeleteData)(void* client_data);
|
|
|
|
cmVariableWatch();
|
|
~cmVariableWatch();
|
|
|
|
/**
|
|
* Add watch to the variable
|
|
*/
|
|
bool AddWatch(const std::string& variable, WatchMethod method,
|
|
void* client_data=0, DeleteData delete_data=0);
|
|
void RemoveWatch(const std::string& variable, WatchMethod method,
|
|
void* client_data=0);
|
|
|
|
/**
|
|
* This method is called when variable is accessed
|
|
*/
|
|
void VariableAccessed(const std::string& variable, int access_type,
|
|
const char* newValue, const cmMakefile* mf) const;
|
|
|
|
/**
|
|
* Different access types.
|
|
*/
|
|
enum
|
|
{
|
|
VARIABLE_READ_ACCESS = 0,
|
|
UNKNOWN_VARIABLE_READ_ACCESS,
|
|
UNKNOWN_VARIABLE_DEFINED_ACCESS,
|
|
ALLOWED_UNKNOWN_VARIABLE_READ_ACCESS,
|
|
VARIABLE_MODIFIED_ACCESS,
|
|
VARIABLE_REMOVED_ACCESS,
|
|
NO_ACCESS
|
|
};
|
|
|
|
/**
|
|
* Return the access as string
|
|
*/
|
|
static const char* GetAccessAsString(int access_type);
|
|
|
|
protected:
|
|
struct Pair
|
|
{
|
|
WatchMethod Method;
|
|
void* ClientData;
|
|
DeleteData DeleteDataCall;
|
|
Pair() : Method(0), ClientData(0), DeleteDataCall(0) {}
|
|
~Pair()
|
|
{
|
|
if (this->DeleteDataCall && this->ClientData)
|
|
{
|
|
this->DeleteDataCall(this->ClientData);
|
|
}
|
|
}
|
|
};
|
|
|
|
typedef std::vector< Pair* > VectorOfPairs;
|
|
typedef std::map<cmStdString, VectorOfPairs > StringToVectorOfPairs;
|
|
|
|
StringToVectorOfPairs WatchMap;
|
|
};
|
|
|
|
|
|
#endif
|