#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

class A
{
public:
    A() : m_val(10)
    {
        printf("process %d, this = %p, m_val = %d, A constructor called!!!\n", getpid(), this, m_val);
    }

    ~A()
    {
        printf("process %d, this = %p, m_val = %d, A destructor called!!!\n", getpid(), this, m_val);
    }

    void Inc()
    {
        m_val++;
        printf("process %d, this = %p, m_val = %d, INC called!!!\n", getpid(), this, m_val);
    }
private:
    int m_val;
};

extern "C"
{
    A gA;
    
    void IncA()
    {
        gA.Inc();
    }
}


/*int main(int argc, char* argv[])
{
    int pid = getpid();
    std::string fname = "/proc/";
    fname += std::to_string(pid) + "/cmdline";
    std::ifstream ifile(fname);
    std::string name;
    std::getline(ifile, name);
    int beginIdx = name.rfind('/');
    name = name.substr(beginIdx + 1);
    printf("%s\n", name.c_str());
    std::string newName = name + std::string("_profile.csv");
    printf("%s\n", newName.c_str());
    std::string name1 = "a.out";
    std::string newName1 = name1 + std::string("_profile.csv");
    printf("%s\n", newName1.c_str());
    //name.pop_back();
    printf("parent process id is %d!!!\n", getpid());
    auto pid = fork();
    if (pid == 0)
    {
        gA.Inc();
    }
    else if (pid > 0)
    {
        printf("child process id is %d!!!\n", pid);
        gA.Inc();
        gA.Inc();
        sleep(2);
    }

    return 0;
}*/