#include <iostream>
#include <iomanip>
#include <memory>
#include <thread>
#include <chrono>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <sys/file.h>
#include <functional>

#include "async_scanner.h"

#define BUF_LEN_FOR_PID 64


static async_scanner	*scanner = nullptr;
static void sigHandler(int sig)
{
	// if (sig == SIGINT || sig == SIGTERM)
	// 	remove(MY_PID_FILE);
    printf("exit now for signal: %d\n", sig);
	if(scanner)
	{
		scanner->stop();
		scanner->release();
	}

	_exit(0);
}
static std::string get_command(void)
{
	std::string cmd("");
	char		in[2] = {0};

	while((in[0] = getchar()) != 0x0a)
		cmd += in;

	return std::move(cmd);
}

int main()
{
	/* Ctrl + C */
	if (signal(SIGINT, sigHandler) == SIG_ERR)
	{
		exit(-1);
	}

	/* kill pid / killall name */
	if (signal(SIGTERM, sigHandler) == SIG_ERR)
	{
		exit(-1);
	}

	/* kill pid / killall name */
	signal(SIGKILL, sigHandler);
	
	scanner = new async_scanner();
	int	err = scanner->last_error();

	while(err == 0)
	{
		std::string cmd(get_command());
		if(cmd == "exit")
			break;
		if(cmd == "mem")
			utils::print_memory_usage("    Memory usage", false);
	}

	async_scanner* tmp = scanner;

	scanner = nullptr;
	tmp->stop();
	tmp->release();

    return 0;
}