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/*============================================================================
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.
============================================================================*/
#include "cmVariableWatch.h"
#include "cmAlgorithms.h"
static const char* const cmVariableWatchAccessStrings[] =
{
"READ_ACCESS",
"UNKNOWN_READ_ACCESS",
"UNKNOWN_DEFINED_ACCESS",
"MODIFIED_ACCESS",
"REMOVED_ACCESS",
"NO_ACCESS"
};
const char* cmVariableWatch::GetAccessAsString(int access_type)
{
if ( access_type < 0 || access_type >= cmVariableWatch::NO_ACCESS )
{
return "NO_ACCESS";
}
return cmVariableWatchAccessStrings[access_type];
}
cmVariableWatch::cmVariableWatch()
{
}
template<typename C>
void deleteAllSecond(typename C::value_type it)
{
cmDeleteAll(it.second);
}
cmVariableWatch::~cmVariableWatch()
{
std::for_each(this->WatchMap.begin(), this->WatchMap.end(),
deleteAllSecond<cmVariableWatch::StringToVectorOfPairs>);
}
bool cmVariableWatch::AddWatch(const std::string& variable,
WatchMethod method, void* client_data /*=0*/,
DeleteData delete_data /*=0*/)
{
cmVariableWatch::Pair* p = new cmVariableWatch::Pair;
p->Method = method;
p->ClientData = client_data;
p->DeleteDataCall = delete_data;
cmVariableWatch::VectorOfPairs* vp = &this->WatchMap[variable];
cmVariableWatch::VectorOfPairs::size_type cc;
for ( cc = 0; cc < vp->size(); cc ++ )
{
cmVariableWatch::Pair* pair = (*vp)[cc];
if ( pair->Method == method &&
client_data && client_data == pair->ClientData)
{
// Callback already exists
return false;
}
}
vp->push_back(p);
return true;
}
void cmVariableWatch::RemoveWatch(const std::string& variable,
WatchMethod method,
void* client_data /*=0*/)
{
if ( !this->WatchMap.count(variable) )
{
return;
}
cmVariableWatch::VectorOfPairs* vp = &this->WatchMap[variable];
cmVariableWatch::VectorOfPairs::iterator it;
for ( it = vp->begin(); it != vp->end(); ++it )
{
if ( (*it)->Method == method &&
// If client_data is NULL, we want to disconnect all watches against
// the given method; otherwise match ClientData as well.
(!client_data || (client_data == (*it)->ClientData)))
{
delete *it;
vp->erase(it);
return;
}
}
}
void cmVariableWatch::VariableAccessed(const std::string& variable,
int access_type,
const char* newValue,
const cmMakefile* mf) const
{
cmVariableWatch::StringToVectorOfPairs::const_iterator mit =
this->WatchMap.find(variable);
if ( mit != this->WatchMap.end() )
{
const cmVariableWatch::VectorOfPairs* vp = &mit->second;
cmVariableWatch::VectorOfPairs::const_iterator it;
for ( it = vp->begin(); it != vp->end(); it ++ )
{
(*it)->Method(variable, access_type, (*it)->ClientData,
newValue, mf);
}
}
}
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