Files
WoWee/include/network/net_platform.hpp
Kelsi 6bf3fa4ed4 Add Windows cross-platform support alongside Linux
Replace POSIX-specific socket and process APIs with portable
abstractions so the project builds on both Windows and Linux.

- Add include/network/net_platform.hpp: Winsock2/POSIX socket
  abstraction (socket types, non-blocking, error handling,
  WSAStartup lifecycle)
- Add include/platform/process.hpp: CreateProcess/fork+exec
  abstraction for spawning ffplay subprocesses
- Update network module (tcp_socket, world_socket) to use
  portable socket helpers instead of raw POSIX calls
- Update audio module (music_manager, footstep_manager,
  activity_sound_manager) to use portable process helpers
  instead of fork/exec/kill/waitpid
- Replace hardcoded /tmp/ paths with std::filesystem::temp_directory_path()
- Link ws2_32 and SDL2main on Windows in CMakeLists.txt
2026-02-03 22:25:41 -08:00

123 lines
2.6 KiB
C++

#pragma once
// Cross-platform socket abstractions for Windows (Winsock2) and POSIX.
#ifdef _WIN32
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <winsock2.h>
#include <ws2tcpip.h>
#pragma comment(lib, "ws2_32.lib")
using socket_t = SOCKET;
using ssize_t = int; // recv/send return int on Windows
inline constexpr socket_t INVALID_SOCK = INVALID_SOCKET;
#else
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <unistd.h>
#include <fcntl.h>
#include <cerrno>
using socket_t = int;
inline constexpr socket_t INVALID_SOCK = -1;
#endif
#include <cstring>
namespace wowee {
namespace net {
// ---- Winsock lifecycle (no-op on Linux) ----
#ifdef _WIN32
struct WinsockInit {
WinsockInit() {
WSADATA wsa;
WSAStartup(MAKEWORD(2, 2), &wsa);
}
~WinsockInit() { WSACleanup(); }
};
// Call once at program start (e.g. as a static in Application).
inline void ensureInit() {
static WinsockInit instance;
}
#else
inline void ensureInit() {}
#endif
// ---- Portable helpers ----
inline void closeSocket(socket_t s) {
#ifdef _WIN32
closesocket(s);
#else
close(s);
#endif
}
inline bool setNonBlocking(socket_t s) {
#ifdef _WIN32
u_long mode = 1;
return ioctlsocket(s, FIONBIO, &mode) == 0;
#else
int flags = fcntl(s, F_GETFL, 0);
return fcntl(s, F_SETFL, flags | O_NONBLOCK) != -1;
#endif
}
inline int lastError() {
#ifdef _WIN32
return WSAGetLastError();
#else
return errno;
#endif
}
inline bool isWouldBlock(int err) {
#ifdef _WIN32
return err == WSAEWOULDBLOCK;
#else
return err == EAGAIN || err == EWOULDBLOCK;
#endif
}
inline bool isInProgress(int err) {
#ifdef _WIN32
return err == WSAEWOULDBLOCK || err == WSAEALREADY;
#else
return err == EINPROGRESS;
#endif
}
inline const char* errorString(int err) {
#ifdef _WIN32
// Simple thread-local buffer for FormatMessage
thread_local char buf[256];
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr, err, 0, buf, sizeof(buf), nullptr);
return buf;
#else
return strerror(err);
#endif
}
// Portable send — Windows recv/send take char*, not void*.
inline ssize_t portableSend(socket_t s, const uint8_t* data, size_t len) {
return ::send(s, reinterpret_cast<const char*>(data), static_cast<int>(len), 0);
}
inline ssize_t portableRecv(socket_t s, uint8_t* buf, size_t len) {
return ::recv(s, reinterpret_cast<char*>(buf), static_cast<int>(len), 0);
}
} // namespace net
} // namespace wowee