GoaLitiuM/FlaxEngine
1
0
Fork 0
Code Issues Pull Requests Actions 7 Packages Projects Releases Wiki Activity

Add windows implementation.

Browse Source
This commit is contained in:
Jean-Baptiste Perrier
2021-01-23 15:35:22 +01:00
parent d76c167ad9
commit aa97296123
5 changed files with 411 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

370
Source/Engine/Platform/Win32/Win32Network.cpp Normal file
View File

@@ -0,0 +1,370 @@
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
#include "Win32Network.h"
#include "Engine/Core/Log.h"
#include "Engine/Core/Collections/Array.h"
#include <WinSock2.h>
#include <ws2ipdef.h>
#include <ws2tcpip.h>
static_assert(sizeof NetworkSocket::Data >= sizeof SOCKET, "NetworkSocket::Data is not big enough to contains SOCKET !");
static_assert(sizeof NetworkEndPoint::Data >= sizeof sockaddr_in6, "NetworkEndPoint::Data is not big enough to contains sockaddr_in6 !");
static const IN6_ADDR v4MappedPrefix = {{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }};
static WSAData _wsaData;
/*
* TODO: Create func to retrieve WSA error string
* Known issues :
* Sometimes getaddrinfo fails without reason, re-trying right after works
* Even if dualstacking is enabled it's not possible to bind an Ipv4mappedIPv6 endpoint. windows limitation
*/
static int GetAddrSize(const sockaddr& addr)
{
return addr.sa_family == AF_INET6 ? sizeof sockaddr_in6 : sizeof sockaddr_in;
}
static int GetAddrSizeFromEP(NetworkEndPoint& endPoint)
{
return endPoint.IPVersion == NetworkIPVersion::IPv6 ? sizeof sockaddr_in6 : sizeof sockaddr_in;
}
static NetworkIPVersion GetIPVersionFromAddr(const sockaddr& addr)
{
return addr.sa_family == AF_INET6 ? NetworkIPVersion::IPv6 : NetworkIPVersion::IPv4;;
}
//TODO: can be simplified by casting addr to the right struct and ntohl the port, so we can get rid of getnameinfo
// getnameinfo return a name ( like JimiPC ), not the ip !
static bool CreateEndPointFromAddr(sockaddr* addr, NetworkEndPoint& endPoint)
{
uint16 size = GetAddrSize(*addr);
char name[100];
char service[20];
if (getnameinfo(addr, size, name, sizeof name, service, sizeof service, 0) != 0)
{
LOG(Error, "Unable to extract info from sockaddr ! Error : {0}", WSAGetLastError());
return true;
}
void* paddr;
if (addr->sa_family == AF_INET6)
paddr = &((sockaddr_in6*)addr)->sin6_addr;
else if (addr->sa_family == AF_INET)
paddr = &((sockaddr_in*)addr)->sin_addr;
char ip[INET6_ADDRSTRLEN];
if (inet_ntop(addr->sa_family, paddr, ip, INET6_ADDRSTRLEN) == nullptr)
{
LOG(Error, "Unable to extract address from sockaddr ! Error : {0}", WSAGetLastError());
return true;
}
endPoint.Address = String(ip);
endPoint.Port = String(service);
endPoint.IPVersion = GetIPVersionFromAddr(*addr);
memcpy(endPoint.Data, addr, size);
return false;
}
static void PrintAddrFromInfo(addrinfo& info)
{
addrinfo* curr;
for (curr = &info; curr != nullptr; curr = curr->ai_next)
{
void* addr;
if (curr->ai_family == AF_INET) {
sockaddr_in *ipv4 = (struct sockaddr_in *)curr->ai_addr;
addr = &(ipv4->sin_addr);
} else {
sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)curr->ai_addr;
addr = &(ipv6->sin6_addr);
}
char str[INET6_ADDRSTRLEN];
inet_ntop(curr->ai_family, addr, str, INET6_ADDRSTRLEN);
LOG(Info, "ADDR INFO family : {0} socktype : {1}, proto : {2} address : {3}", curr->ai_family, curr->ai_socktype, curr->ai_protocol, StringAnsi(str).ToString().Get());
}
}
bool Win32Network::Init()
{
if (WSAStartup(MAKEWORD(2,0), &_wsaData) != 0)
return true;
return false;
}
void Win32Network::Exit()
{
WSACleanup();
}
bool Win32Network::CreateSocket(NetworkSocket& netsock, NetworkSocketCreateSettings& settings)
{
netsock.Protocol = settings.Protocol;
netsock.IPVersion = settings.IPVersion;
const uint8 family = settings.IPVersion == NetworkIPVersion::IPv6 ? AF_INET6 : AF_INET;
const uint8 stype = settings.Protocol == NetworkProtocolType::Tcp ? SOCK_STREAM : SOCK_DGRAM;
const uint8 proto = settings.Protocol == NetworkProtocolType::Tcp ? IPPROTO_TCP : IPPROTO_UDP;
SOCKET sock;
if ((sock = socket(family, stype, proto)) == INVALID_SOCKET)
{
LOG(Error, "Can't create native socket ! Error : {0}", WSAGetLastError());
return true;
}
memcpy(netsock.Data, &sock, sizeof sock);
DWORD dw = 0;
if (family == AF_INET6 && setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (char*)&dw, sizeof dw) == SOCKET_ERROR)
{
LOG(Warning, "System does not support dual stacking socket ! Error : {0}", WSAGetLastError());
}
unsigned long value = 1;
if (settings.ReuseAddress && setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&value, sizeof value) == SOCKET_ERROR)
{
LOG(Warning, "Can't set socket option to SO_REUSEADDR ! Error : {0}", WSAGetLastError());
}
if (settings.Broadcast && settings.Protocol == NetworkProtocolType::Udp)
{
if (setsockopt(sock, SOL_SOCKET, SO_BROADCAST, (char*)&value, sizeof value) == SOCKET_ERROR)
{
LOG(Warning, "Can't set socket option to SO_BROADCAST ! Error : {0}", WSAGetLastError());
}
}
else if (settings.Broadcast)
LOG(Warning, "Can't set socket option to SO_BROADCAST ! The socket must use UDP protocol. Error : {0}", WSAGetLastError());
if (ioctlsocket(sock, FIONBIO, &value) == SOCKET_ERROR)
{
LOG(Error, "Can't set socket to NON-BLOCKING type ! Error : {0}", WSAGetLastError());
return true; // Support using blocking socket , need to test it
}
//DEBUG
LOG(Info, "New socket created : {0}", sock); //TODO: DEBUG
return false;
}
bool Win32Network::DestroySocket(NetworkSocket& socket)
{
const SOCKET sock = *(SOCKET*)socket.Data;
if (sock != INVALID_SOCKET)
{
closesocket(sock);
//DEBUG
LOG(Info, "Deleting socket : {0}", sock); //TODO: DEBUG
return false;
}
LOG(Warning, "Unable to delete socket INVALID_SOCKET ! Socket : {0}", sock);
return true;
}
bool Win32Network::ConnectSocket(NetworkSocket& socket, NetworkEndPoint& endPoint)
{
const uint16 size = GetAddrSizeFromEP(endPoint);
if (connect(*(SOCKET*)socket.Data, (const sockaddr*)endPoint.Data, size) == SOCKET_ERROR)
{
LOG(Error, "Unable to connect socket to address ! Socket : {0} Address : {1} Port : {2}", *(SOCKET*)socket.Data, endPoint.Address.Get(), endPoint.Port.Get());
return true;
}
return false;
}
bool Win32Network::BindSocket(NetworkSocket& socket, NetworkEndPoint& endPoint)
{
if (socket.IPVersion != endPoint.IPVersion)
{
LOG(Error, "Can't bind socket to end point, Socket.IPVersion != EndPoint.IPVersion ! Socket : {0}", *(SOCKET*)socket.Data);
return true;
}
const uint16 size = endPoint.IPVersion == NetworkIPVersion::IPv6 ? sizeof sockaddr_in6 : sizeof sockaddr_in;
const sockaddr* addr = (sockaddr*)endPoint.Data;
LOG(Info, "BIND : EndPoint family : {0}", addr->sa_family);
if (bind(*(SOCKET*)socket.Data, (const sockaddr*)endPoint.Data, size) == SOCKET_ERROR)
{
LOG(Error, "Unable to bind socket ! Socket : {0} Address : {1} Port : {2} Error : {3}", *(SOCKET*)socket.Data, endPoint.Address.Get(), endPoint.Port.Get(), WSAGetLastError());
return true;
}
//DEBUG
LOG(Info, "Binding socket ! Socket : {0} Address : {1} Port : {2}", *(SOCKET*)socket.Data, endPoint.Address.Get(), endPoint.Port.Get());
return false;
}
bool Win32Network::Accept(NetworkSocket& serverSock, NetworkSocket& newSock, NetworkEndPoint& newEndPoint)
{
if (serverSock.Protocol != NetworkProtocolType::Tcp)
{
LOG(Warning, "Can't accept connection on UDP socket ! Socket : {0}", *(SOCKET*)serverSock.Data);
return true;
}
SOCKET sock;
sockaddr addr;
if ((sock = accept(*(SOCKET*)serverSock.Data, &addr, nullptr)) == INVALID_SOCKET)
{
LOG(Warning, "Unable to accept incoming connection ! Socket : {0} Error : {1}", *(SOCKET*)serverSock.Data, WSAGetLastError());
return true;
}
memcpy(newSock.Data, &sock, sizeof sock);
memcpy(newEndPoint.Data, &addr, GetAddrSize(addr));
newSock.Protocol = serverSock.Protocol;
newSock.IPVersion = serverSock.IPVersion;
if (CreateEndPointFromAddr(&addr, newEndPoint))
return true;
return false;
}
bool Win32Network::IsReadable(NetworkSocket& socket, uint64* size)
{
unsigned long value;
if (ioctlsocket(*(SOCKET*)socket.Data, FIONREAD, &value) != 0)
{
LOG(Error, "Unable to query socket for readability ! Socket : {0} Error : {1}", *(SOCKET*)socket.Data, WSAGetLastError());
return true;
}
*size = value;
return false;
}
uint32 Win32Network::WriteSocket(NetworkSocket socket, byte* data, uint32 length, NetworkEndPoint* endPoint)
{
if (socket.IPVersion != endPoint->IPVersion)
{
LOG(Error, "Unable to send data, Socket.IPVersion != EndPoint.IPVersion ! Socket : {0}", *(SOCKET*)socket.Data);
return 0;
}
uint32 size;
if (endPoint == nullptr && socket.Protocol == NetworkProtocolType::Tcp)
{
if ((size = send(*(SOCKET*)socket.Data, (const char*)data, length, 0)) == SOCKET_ERROR)
{
LOG(Error, "Unable to send data ! Socket : {0} Data Length : {1}", *(SOCKET*)socket.Data, length);
return -1;
}
}
else if (endPoint != nullptr && socket.Protocol == NetworkProtocolType::Udp)
{
if ((size = sendto(*(SOCKET*)socket.Data, (const char*)data, length, 0, (const sockaddr*)endPoint->Data, GetAddrSizeFromEP(*endPoint))) == SOCKET_ERROR)
{
LOG(Error, "Unable to send data ! Socket : {0} Address : {1} Port : {2} Data Length : {3}", *(SOCKET*)socket.Data, endPoint->Address, endPoint->Port, length);
return -1;
}
}
else
{
//TODO: better explanation
LOG(Error, "Unable to send data ! Socket : {0} Data Length : {1}", *(SOCKET*)socket.Data, length);
return -1;
}
return size;
}
/*
* TODO: handle size == 0 when there is a shutdown
*/
uint32 Win32Network::ReadSocket(NetworkSocket socket, byte* buffer, uint32 bufferSize, NetworkEndPoint* endPoint)
{
uint32 size;
if (endPoint == nullptr) // TCP
{
if ((size = recv(*(SOCKET*)socket.Data, (char*) buffer, bufferSize, 0)) == SOCKET_ERROR)
{
LOG(Error, "Unable to read data ! Socket : {0} Buffer Size : {1}", *(SOCKET*)socket.Data, bufferSize);
return -1;
}
}
else // UDP
{
int32 addrsize;
sockaddr_in6 addr;
if ((size = recvfrom(*(SOCKET*)socket.Data, (char*) buffer, bufferSize, 0, (sockaddr*)&addr, &addrsize)) == SOCKET_ERROR)
{
LOG(Error, "Unable to read data ! Socket : {0} Buffer Size : {1}", *(SOCKET*)socket.Data, bufferSize);
return -1;
}
if (CreateEndPointFromAddr((sockaddr*)&addr, *endPoint))
return true;
}
return size;
}
// if address is null, it's ADDR_ANY
bool Win32Network::CreateEndPoint(String* address, String* port, NetworkIPVersion ipv, NetworkEndPoint& endPoint)
{
int status;
addrinfo hints;
addrinfo *info;
//TODO: Refactor this crappy thing
char* paddr= address != nullptr ? address->ToStringAnsi().Get() : nullptr;
char* pport = port != nullptr ? port->ToStringAnsi().Get() : nullptr;
//DEBUG
LOG(Info, "Searching available adresses for {0} : {1}", address == nullptr ? String("nullptr").Get() : address->Get(),
port == nullptr ? String("nullptr").Get() : port->Get());
memset(&hints, 0, sizeof hints);
hints.ai_family = ipv == NetworkIPVersion::IPv6 ? AF_INET6 : ipv == NetworkIPVersion::IPv4 ? AF_INET : AF_UNSPEC;
hints.ai_flags |= AI_ADDRCONFIG;
hints.ai_flags |= AI_V4MAPPED;
if (paddr == nullptr)
{
hints.ai_flags = AI_PASSIVE;
LOG(Info, "PASSIVE MODE");
}
// consider using NUMERICHOST/NUMERICSERV if address is a valid Ipv4 or IPv6 so we can skip some look up ( potentially slow when resolving host names )
// can *paddr works ?
// paddr = nullptr don't work with this func
if ((status = getaddrinfo(paddr == nullptr ? nullptr : paddr, pport, &hints, &info)) != 0)
{
LOG(Error, "Unable to query info for address : {0} Error : {1} !", address->Get(), gai_strerror(status)); //TODO: address can be NULL
return true;
}
if (info == nullptr)
{
LOG(Error, "Unable to resolve address ! Address : {0}", address->Get());//TODO: address can be NULL
return true;
}
//DEBUG
PrintAddrFromInfo(*info);
// We are taking the first addr in the linked list
if (CreateEndPointFromAddr(info->ai_addr, endPoint))
{
freeaddrinfo(info);
return true;
}
freeaddrinfo(info);
//DEBUG
LOG(Info, "Address found : {0} : {1}", endPoint.Address, endPoint.Port);
return false;
}
NetworkEndPoint Win32Network::RemapEndPointToIPv6(NetworkEndPoint endPoint)
{
if (endPoint.IPVersion == NetworkIPVersion::IPv6)
{
LOG(Warning, "Unable to remap EndPoint, already in IPv6 format !");
return endPoint;
}
NetworkEndPoint pv6;
sockaddr_in* addr4 = (sockaddr_in*)endPoint.Data;
sockaddr_in6* addr6 = (sockaddr_in6*)pv6.Data;
const SCOPE_ID scope = SCOPEID_UNSPECIFIED_INIT;
// Can be replaced by windows built-in macro IN6ADDR_SETV4MAPPED()
memset(addr6, 0, sizeof sockaddr_in6);
addr6->sin6_family = AF_INET6;
addr6->sin6_scope_struct = scope;
addr6->sin6_addr = v4MappedPrefix;
addr6->sin6_port = addr4->sin_port;
memcpy(&addr6->sin6_addr.u.Byte[12], &addr4->sin_addr, 4); // :::::FFFF:XXXX:XXXX X=IPv4
pv6.IPVersion = NetworkIPVersion::IPv6;
pv6.Port = endPoint.Port;
return pv6;
}

29
Source/Engine/Platform/Win32/Win32Network.h Normal file
View File

@@ -0,0 +1,29 @@
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
#pragma once
#if PLATFORM_WIN32
#include "Engine/Platform/Base/NetworkBase.h"
class FLAXENGINE_API Win32Network : public NetworkBase
{
public:
// [NetworkBase]
static bool Init();
static void Exit();
static bool CreateSocket(NetworkSocket& socket, NetworkSocketCreateSettings& settings);
static bool DestroySocket(NetworkSocket& socket);
static bool ConnectSocket(NetworkSocket& socket, NetworkEndPoint& endPoint);
static bool BindSocket(NetworkSocket& socket, NetworkEndPoint& endPoint);
static bool Accept(NetworkSocket& serverSock, NetworkSocket& newSock, NetworkEndPoint& newEndPoint);
static bool IsReadable(NetworkSocket& socket, uint64* size);
static uint32 WriteSocket(NetworkSocket socket, byte* data, uint32 length, NetworkEndPoint* endPoint = nullptr);
static uint32 ReadSocket(NetworkSocket socket, byte* buffer, uint32 bufferSize, NetworkEndPoint* endPoint = nullptr);
static bool CreateEndPoint(String* address, String* port, NetworkIPVersion ipv, NetworkEndPoint& endPoint);
static NetworkEndPoint RemapEndPointToIPv6(NetworkEndPoint endPoint);
friend NetworkEndPoint;
friend NetworkSocket;
};
#endif

9
Source/Engine/Platform/Win32/Win32Platform.cpp
View File

@@ -11,6 +11,7 @@
#include "Engine/Core/Math/Math.h"
#include "IncludeWindowsHeaders.h"
#include "Engine/Core/Collections/HashFunctions.h"
#include "Engine/Platform/Network.h"
#include <Psapi.h>
#include <WinSock2.h>
@@ -212,9 +213,17 @@ bool Win32Platform::Init()
DeviceId.D = (uint32)cpuInfo.ClockSpeed * cpuInfo.LogicalProcessorCount * cpuInfo.ProcessorCoreCount * cpuInfo.CacheLineSize;
}
//TODO: log error if true
Win32Network::Init();
return false;
}
void Win32Platform::Exit()
{
Network::Exit();
}
void Win32Platform::MemoryBarrier()
{
// NOTE: _ReadWriteBarrier and friends only prevent the

1
Source/Engine/Platform/Win32/Win32Platform.h
View File

@@ -16,6 +16,7 @@ public:
// [PlatformBase]
static bool Init();
static void Exit();
static void MemoryBarrier();
static int64 InterlockedExchange(int64 volatile* dst, int64 exchange);
static int32 InterlockedCompareExchange(int32 volatile* dst, int32 exchange, int32 comperand);