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/** Created by crupest.
* This is the server program.
*/
#include "Common.h"
#include "Output.h"
#include <optional>
#include <thread>
#ifdef WIN32
#include <Windows.h>
#include <winsock.h>
#else
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/socket.h>
#endif
const auto bind_address = "127.0.0.1"; // control bind address
const u_short port = 1234; // control bind port
void ResponseThreadProc(int socket, sockaddr_in address) {
auto address_string = inet_ntoa(address.sin_addr);
SendOutput(CRUT("Connected to {}!\n"), ConvertCharString(address_string));
const std::string_view buffer = "Love you!!! By crupest!";
const int total_byte_count = buffer.size();
int byte_count_sent = 0;
int retry_count = 0;
while (true) {
// Now we have sent all data.
if (byte_count_sent == total_byte_count)
break;
auto byte_actually_sent = send(socket, buffer.data() + byte_count_sent,
buffer.size() - byte_count_sent, 0);
// send failed
if (byte_actually_sent == -1) {
SendOutput(OutputType::Error, CRUT("Failed to send!\n"));
CloseSocket(socket);
break;
}
byte_count_sent += byte_actually_sent;
}
SendOutput(OutputColor::Green, CRUT("Succeeded to send message to {}!\n"),
ConvertCharString(address_string));
CloseSocket(socket);
}
int Main() {
int server_socket;
if ((server_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
PrintErrorMessageAndExit(CRUT("Failed to create socket."));
}
sockaddr_in server_address;
server_address.sin_family = AF_INET;
server_address.sin_port = htons(port);
server_address.sin_addr.s_addr = inet_addr(bind_address);
memset(&(server_address.sin_zero), 0, sizeof(server_address.sin_zero));
if (bind(server_socket, reinterpret_cast<sockaddr *>(&server_address),
sizeof(sockaddr_in)) == -1) {
PrintErrorMessageAndExit(CRUT("Failed to bind."));
}
if (listen(server_socket, SOMAXCONN) == -1) {
PrintErrorMessageAndExit(CRUT("Failed to listen."));
}
SendOutput(OutputColor::Green,
CRUT("Now start to accept incoming connection.\n"));
while (true) {
sockaddr_in client_address;
int client_socket;
unsigned sin_size = sizeof(sockaddr_in);
client_socket =
accept(server_socket, reinterpret_cast<sockaddr *>(&client_address),
#ifdef WIN32
reinterpret_cast<int *>
#endif
(&sin_size));
if (client_socket == -1) {
PrintErrorMessageAndExit(CRUT("Failed to accecpt."));
}
std::thread response_thread(ResponseThreadProc, client_socket,
client_address);
response_thread.detach();
}
}
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