Gabriele Cosmo
130 lines
2.8 KiB
Plaintext
130 lines
2.8 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_mem
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#define tools_mem
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#ifdef TOOLS_MEM
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// to count instances.
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// WARNING : it uses writable static data, then it is NOT thread safe.
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// This class must be used for debugging only.
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#include <ostream>
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#include <list>
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#include <string>
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#include <cstring> //strcmp
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namespace tools {
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class mem {
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protected:
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mem(){increment();}
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virtual ~mem(){decrement();}
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mem(const mem&){}
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mem& operator=(const mem&){return *this;}
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public:
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static void increment(){counter()++;}
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static void decrement(){counter()--;}
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static void increment(const char* a_class){
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counter()++;
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if(check_by_class()) {
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mem_list::iterator it;
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for(it=list().begin();it!=list().end();++it) {
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if(!::strcmp((*it).first.c_str(),a_class)) {
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(*it).second++;
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return;
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}
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}
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list().push_back(std::pair<std::string,int>(std::string(a_class),1));
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}
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}
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static void decrement(const char* a_class){
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counter()--;
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if(check_by_class()) {
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mem_list::iterator it;
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for(it=list().begin();it!=list().end();++it) {
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if(!::strcmp((*it).first.c_str(),a_class)) {
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(*it).second--;
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return;
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}
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}
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list().push_back(std::pair<std::string,int>(std::string(a_class),-1));
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}
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}
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static void set_check_by_class(bool a_value) {
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check_by_class() = a_value;
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}
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/*
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static void reset();
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*/
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static void balance(std::ostream& a_out){
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if(counter()) {
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a_out << "tools::mem::balance :"
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<< " bad global object balance : " << counter()
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<< std::endl;
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if(check_by_class()) {
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a_out << "tools::mem::balance :"
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<< " check by class was enabled."
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<< std::endl;
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} else {
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a_out << "tools::mem::balance :"
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<< " check by class was disabled."
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<< std::endl;
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}
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}
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mem_list::iterator it;
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for(it=list().begin();it!=list().end();++it) {
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if((*it).second) {
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a_out << "tools::mem::balance :"
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<< " for class " << (*it).first
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<< ", bad object balance : " << (*it).second
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<< std::endl;
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}
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}
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list().clear();
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}
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static int& counter() {
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static int s_count = 0;
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return s_count;
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}
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protected:
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static bool& check_by_class() {
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static bool s_check_by_class = false;
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return s_check_by_class;
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}
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typedef std::list< std::pair<std::string,int> > mem_list;
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static mem_list& list() {
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static mem_list s_list;
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return s_list;
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}
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};
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inline const std::string& s_new() {
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static const std::string s_v("new");
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return s_v;
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}
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inline const std::string& s_malloc() {
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static const std::string s_v("malloc");
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return s_v;
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}
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}
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#endif
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#endif
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