#pragma once

#include <iostream>
#include <string>

#define Die(code)   \
    do              \
    {               \
        exit(code); \
    } while (0)

#define CONV(v) (struct sockaddr *)(v)

enum
{
    USAGE_ERR = 1, // 使用错误
    SOCKET_ERR,    // 创建套接字错误
    BIND_ERR,      // 绑定错误
    LISTEN_ERR     // 监听失败
};

const int gdefaultsockfd = -1;
const int gbacklog = 8;

// 1.正常字符串 2.out空串&&返回值是true 3.out空串&&返回值是false
bool ParseOneLine(std::string &str,std::string *out,const std::string &sep)
{
    auto pos = str.find(sep);
    if(pos == std::string::npos) return false;
    *out = str.substr(0,pos);
    str.erase(0,pos+sep.size());
    return true;
}

// Connection: keep-alive
bool SplitString(const std::string &header,const std::string &sep,std::string *key,std::string *value)
{
    auto pos = header.find(sep);
    if(pos == std::string::npos) return false;
    *key = header.substr(0,pos);
    *value = header.substr(pos + sep.size());
    return true;
}