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zhengshuxin
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Add class_counter for check the count of one class obj.
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10 files changed

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10 files changed

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‎lib_acl_cpp/include/acl_cpp/lib_acl.hpp‎

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#include "stdlib/diff_string.hpp"
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#include "stdlib/diff_manager.hpp"
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#include "stdlib/token_tree.hpp"
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//#include "stdlib/type.hpp"
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//#include "stdlib/class_counter.hpp"
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#include "serialize/gsoner.hpp"
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#include "serialize/gson_helper.ipp"

‎lib_acl_cpp/include/acl_cpp/stdlib/bitmap.hpp‎

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#pragma once
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#include "../acl_cpp_define.hpp"
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#include "noncopyable.hpp"
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namespace acl {
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class bitmap : public noncopyable {
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class ACL_CPP_API bitmap : public noncopyable {
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public:
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/**
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* 构造函数

‎lib_acl_cpp/include/acl_cpp/stdlib/class_counter.hpp‎

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#pragma once
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#include "../acl_cpp_define.hpp"
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#include <map>
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#include <string>
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#include "singleton.hpp"
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#define ACL_COUNTER_INIT(thread_safe) \
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acl::class_counter::get_instance().init(thread_safe)
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// 某个字符标记增加一次, flagName 为自己定义的唯一字符对象
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#define ACL_COUNTER_INC(flagName) \
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acl::class_counter::get_instance().inc(#flagName)
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// 某个字符标记减少一次
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#define ACL_COUNTER_DEC(flagName) \
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acl::class_counter::get_instance().dec(#flagName)
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#define ACL_COUNTER_COUNT(flagName) \
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acl::class_counter::get_instance().count(#flagName)
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#define ACL_COUNTER_PRINT() \
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acl::class_counter::get_instance().print()
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namespace acl {
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class thread_mutex;
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class ACL_CPP_API class_counter : public singleton<class_counter> {
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public:
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class_counter();
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~class_counter();
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/**
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* 可以在进程初始化时调用本方法(非必须)进行初始化,指定内部是否需要加锁,
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* 如果不调用本方法,内部自动加线程锁.
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*/
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void init(bool thread_safe = true);
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/**
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* @brief 将name对应的计数加1,当没有name时设置为1
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*/
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void inc(const char *name);
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/**
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* @brief 将name对应的计数减1,当没有name时将输出错误日志
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*/
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void dec(const char *name);
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/**
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* @brief 获取name对象的统计个数
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*/
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long long count(const char *name);
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/**
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* @brief 输出计数统计
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* @param flag 调用者标记
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*/
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void print(const char *flag = NULL);
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private:
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std::map<std::string, long long> names_;
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thread_mutex* lock_;
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};
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} // namespace acl

‎lib_acl_cpp/include/acl_cpp/stdlib/type.hpp‎

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#pragma once
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#include "../acl_cpp_define.hpp"
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#include "acl_cpp/stdlib/class_counter.hpp"
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#include <string>
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#if defined(__GNUC__) || defined(__clang__)
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#include <cxxabi.h>
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namespace acl {
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template<typename T>
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std::string get_type_name(const T& obj) {
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int status = 0;
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char* realname = abi::__cxa_demangle(typeid(obj).name(), NULL, NULL, &status);
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std::string result = (status == 0) ? realname : typeid(obj).name();
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free(realname);
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return result;
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}
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#else
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template<typename T>
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std::string get_type_name(const T& obj) {
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int status = 0;
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std::string result = typeid(obj).name();
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return result;
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}
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#endif
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#define ACL_OBJ_INC() do { \
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std::string name = acl::get_type_name(*this); \
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acl::class_counter::get_instance().inc(name.c_str()); \
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} while (0)
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#define ACL_OBJ_DEC() do { \
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std::string name = acl::get_type_name(*this); \
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acl::class_counter::get_instance().dec(name.c_str()); \
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} while (0)
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} // namespace

‎lib_acl_cpp/samples/class_counter/Makefile‎

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include ../Makefile.in
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PROG = class_counter
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#CFLAGS += -std=c++11

‎lib_acl_cpp/samples/class_counter/main.cpp‎

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#include "stdafx.h"
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#include <cxxabi.h>
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#include <sys/time.h>
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class myobj {
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public:
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myobj(bool use_typeid) : use_typeid_(use_typeid) {
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if (use_typeid) {
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ACL_OBJ_INC();
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} else {
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ACL_COUNTER_INC(myobj);
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}
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}
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virtual ~myobj() {
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if (use_typeid_) {
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ACL_OBJ_DEC();
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} else {
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ACL_COUNTER_DEC(myobj);
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}
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}
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protected:
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bool use_typeid_;
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};
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class myobj1 : public myobj {
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public:
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myobj1(bool use_typeid) : myobj(use_typeid) {
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if (use_typeid) {
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ACL_OBJ_INC();
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} else {
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ACL_COUNTER_INC(myobj1);
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}
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}
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~myobj1() {
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if (use_typeid_) {
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ACL_OBJ_DEC();
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} else {
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ACL_COUNTER_DEC(myobj1);
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}
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}
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};
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class myobj2 : public myobj {
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public:
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myobj2(bool use_typeid) : myobj(use_typeid) {
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if (use_typeid) {
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ACL_OBJ_INC();
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} else {
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ACL_COUNTER_INC(myobj2);
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}
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}
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~myobj2() {
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if (use_typeid_) {
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ACL_OBJ_DEC();
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} else {
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ACL_COUNTER_DEC(myobj2);
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}
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}
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};
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static void test(size_t max, bool use_typeid) {
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std::vector<myobj*> objs;
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struct timeval begin, end;
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gettimeofday(&begin, NULL);
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for (size_t i = 0; i < max; i++) {
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myobj* o = new myobj1(use_typeid);
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objs.push_back(o);
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}
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for (size_t i = 0; i < max; i++) {
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myobj* o = new myobj2(use_typeid);
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objs.push_back(o);
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}
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gettimeofday(&end, NULL);
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double tc = acl::stamp_sub(end, begin);
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printf("After add, time cost=%.2f ms, obj: %lld, obj1: %lld, obj2: %lld\r\n",
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tc, ACL_COUNTER_COUNT(myobj), ACL_COUNTER_COUNT(myobj1),
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ACL_COUNTER_COUNT(myobj2));
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ACL_COUNTER_PRINT();
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printf("Enter any key to continue...\r\n");
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getchar();
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for (std::vector<myobj*>::iterator it = objs.begin();
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it != objs.end(); ++it) {
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delete *it;
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}
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printf("After del objs: %lld\r\n", ACL_COUNTER_COUNT(myobj));
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ACL_COUNTER_PRINT();
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}
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int main(int argc, char *argv[]) {
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// ³õʼ»¯ acl ¿â
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acl::acl_cpp_init();
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acl::log::stdout_open(true);
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size_t max = 1000000;
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if (argc > 1) {
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max = atol(argv[1]);
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}
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if (max == 0 || max > 10000000) {
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max = 1000000;
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}
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printf("use_typeid: yes, use_lock: yes\r\n");
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test(max, true);
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printf("----------------------------------------------------\r\n\r\n");
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printf("use_typeid: no, use_lock: yes\r\n");
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test(max, false);
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printf("----------------------------------------------------\r\n\r\n");
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ACL_COUNTER_INIT(false);
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printf("use_typeid: yes, use_lock: yes\r\n");
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test(max, true);
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printf("----------------------------------------------------\r\n\r\n");
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printf("use_typeid: no, use_lock: no\r\n");
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test(max, false);
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return 0;
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}

‎lib_acl_cpp/samples/class_counter/stdafx.cpp‎

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// stdafx.cpp : 只包括标准包含文件的源文件
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// master_threads.pch 将成为预编译头
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// stdafx.obj 将包含预编译类型信息
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#include "stdafx.h"
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// TODO: 在 STDAFX.H 中
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//引用任何所需的附加头文件，而不是在此文件中引用

‎lib_acl_cpp/samples/class_counter/stdafx.h‎

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// stdafx.h : 标准系统包含文件的包含文件，
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// 或是常用但不常更改的项目特定的包含文件
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//
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#pragma once
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//#include <iostream>
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//#include <tchar.h>
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// TODO: 在此处引用程序要求的附加头文件
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#include "lib_acl.h"
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#include "acl_cpp/lib_acl.hpp"
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#include "acl_cpp/stdlib/type.hpp"
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#ifdef WIN32
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#define snprintf _snprintf
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#endif
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‎lib_acl_cpp/samples/class_counter/valgrind.sh‎

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#!/bin/sh
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valgrind --tool=memcheck --leak-check=yes -v ./class_counter 100

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