Trying to convert a POSIX based system to Windows - c++

Question

I'm currently trying to convert a multithreaded LAN tic tac toe game so it compiles / works on my Windows system. I'm quite new to networking but I've managed to translate a lot of the system calls to Socket API calls however I am having trouble understanding how to convert the 'pthread' functions. Most of the questions I see online are asking how to compile it, but I want to change it instead of adding new libraries etc.
Can someone please shed some light on what exactly pthread does and how I can change it to compile in the native windows environment.
Thanks!
Main Function
pthread_mutex_t games_lock = PTHREAD_MUTEX_INITIALIZER;
int main() {
//Initialise Winsock
WSAData data;
WORD ver = MAKEWORD(2, 2);
int wsResult = WSAStartup(ver, &data);
if (wsResult != 0) {
std::cerr << "Can't start Winsock, Err #" << wsResult << endl;
}
// Signals used to kill the server gracefully
if (signal(SIGINT, sig_handler) == SIG_ERR)
{
perror("Can't catch SIGINT");
exit(1);
}
if (signal(SIGTERM, sig_handler) == SIG_ERR)
{
perror("Can't catch SIGTERM");
exit(1);
}
// Initialize the server and get the server's socket
server_sock = init_server();
int new_socket = 0;
// Infinitely accept clients and spawning threads
while (true)
{
// Wait for a client, and then accept
if ((new_socket = accept(server_sock, NULL, NULL)) < 0)
{
perror("Failed to accept client");
closesocket(server_sock);
exit(1);
}
cout << "New client connected" << endl;
// Spawn thread to handle the client
pthread_t threadid;
pthread_create(&threadid, NULL, handle_client, (void*)&new_socket);
}
return 0;
}
Client Handle Function
{
int client_sock = *(int*)arg;
char buffer[BUF_SIZE];
bool client_connected = true;
char temp = '\0';
int row = 0, col = 0;
int i = 0;
// Create the player
Player player(client_sock);
// Always handle the client
while (client_connected)
{
// Process commands or pass game data
if (player.GetMode() == COMMAND)
{
// Read a line of text or until the buffer is full
for (i = 0; (i < (BUF_SIZE - 1)) && temp != '\n' && client_connected; ++i)
{
// Receive a single character and make sure the client is still connected
if (recv(client_sock, &temp, 1, 0) == 0)
client_connected = false;
else
buffer[i] = temp;
}
// Reset temp so we don't get an infinite loop
temp = '\0';
buffer[i] = '\0';
buffer[i - 1] = '\0';
cout << "Received command \"" << buffer << "\" from " << player.GetName() << endl;
buffer[i - 1] = '\n';
// If there's an invalid command, tell the client
if (!ProcessCommand(buffer, player, client_connected))
SendStatus(player.GetSocket(), INVALID_CMD);
}
else if (player.GetMode() == INGAME)
{
// Get the game the player is a part of
pthread_mutex_lock(&games_lock);
auto game = find_if(game_list.begin(), game_list.end(),
[player](TTTGame* game) { return game->HasPlayer(player); });
auto end = game_list.end();
pthread_mutex_unlock(&games_lock);
// Something horrible has gone wrong
if (game == end)
cout << "Somehow Player " << player.GetName() << " isn't a part of a game but is INGAME" << endl;
else
{
StatusCode status;
client_connected = ReceiveStatus(player.GetSocket(), &status);
// If the player is still connected, then perform the move
if (client_connected)
{
switch (status)
{
case MOVE:
// Pass the row and column right along
ReceiveInt(player.GetSocket(), &row);
ReceiveInt(player.GetSocket(), &col);
cout << "Received moved from " << player.GetName()
<< ": row=" << row << ", col=" << col << endl;
SendStatus((*game)->GetOtherPlayer(player).GetSocket(), MOVE);
SendInt((*game)->GetOtherPlayer(player).GetSocket(), row);
client_connected = SendInt((*game)->GetOtherPlayer(player).GetSocket(), col);
cout << "Sent move to " << (*game)->GetOtherPlayer(player).GetName() << endl;
break;
case WIN:
cout << player.GetName() << " won a game against " << (*game)->GetOtherPlayer(player).GetName() << endl;
client_connected = false;
break;
case DRAW:
cout << player.GetName() << " tied against " << (*game)->GetOtherPlayer(player).GetName() << endl;
client_connected = false;
break;
default:
client_connected = SendStatus(player.GetSocket(), INVALID_CMD);
}
}
}
}
}
// The client disconnected on us D:
cout << "Player \"" << player.GetName() << "\" has disconnected" << endl;
DisconnectPlayer(player);
closesocket(client_sock);
WSACleanup();
return (void*)0;
}
These are just some examples of the code. I am happy to post more if needed.