#include <iostream>
#include <pthread.h>
#include <unistd.h>
#include <stdio.h>
#include <cstring>
#include <fcntl.h>
#include <fstream>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <semaphore.h>
struct Args {
    int flag;
    char * fileName = "/home/dimka/text.txt";
    std::fstream myfile;
    sem_t *mutex;

};
void* func_1(void* args){
    Args *arg=(Args*) args;
    char input ='2';
    std::cout<<"Enter in critical sector"<<std::endl;
    while(arg->flag==0){
        //sem_wait(arg->mutex);
        for (int i = 0; i < 5; ++i) {
            std::cout<<"Write in file:"<<input<<std::endl;
            arg->myfile << input<<std::flush;
            sleep(1);
        }
        std::cout<<"Exit from critical sector"<<std::endl;
        //sem_post(arg->mutex);
        sleep(1);
    }
}
int main() {
    Args file;
    file.flag =0;
    /*if ((file.mutex = sem_open("mysemaphor", O_CREAT, 0644, 1)) == SEM_FAILED) {
        perror("semaphore initilization");
        exit(1);
    }*/
    file.myfile.open(file.fileName,std::fstream::app);
    pthread_t pthread_2;
    pthread_create(&pthread_2, NULL, func_1, (void*) &file);
    getchar();
    file.flag=1;
    pthread_join(pthread_2, nullptr);
    file.myfile.close();
    sem_close(file.mutex);
    sem_unlink("mysemaphore");
    return 0;
}