VisualStudio 2010 C# load DLL

Posted on by
Reply

It is difficult to find a completely VS2010 C# example, that creates the dll in c/c++ and loads from C#.

So DIY it.

Notes:

dumpbin must be run from Microsoft Visual studio 2010 -> Visual studio tools -> visual studio 2010 command prompt. The dll EntryPoint need be found by this tool.

CallingConvention Type see this reference.

The following is the example solution, which includes two projects ( dll creating, C# call).

C# dll example download

Non-Blocking winsokect2 TCP sample

Posted on by
Reply

Clinet

#include
#include
#pragma comment(lib,"ws2_32.lib")

int main(void)
{
WSADATA WsaDat;
if(WSAStartup(MAKEWORD(2,2),&WsaDat)!=0)
{
std::cout<<"Winsock error - Winsock initialization failed\r\n";
WSACleanup();
system("PAUSE");
return 0;
}

// Create our socket

SOCKET Socket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
if(Socket==INVALID_SOCKET)
{
std::cout<<"Winsock error - Socket creation Failed!\r\n";
WSACleanup();
system("PAUSE");
return 0;
}

// Resolve IP address for hostname
struct hostent *host;
if((host=gethostbyname("localhost"))==NULL)
{
std::cout<<"Failed to resolve hostname.\r\n";
WSACleanup();
system("PAUSE");
return 0;
}

// Setup our socket address structure
SOCKADDR_IN SockAddr;
SockAddr.sin_port=htons(8888);
SockAddr.sin_family=AF_INET;
SockAddr.sin_addr.s_addr=*((unsigned long*)host->h_addr);

// Attempt to connect to server
if(connect(Socket,(SOCKADDR*)(&SockAddr),sizeof(SockAddr))!=0)
{
std::cout<<"Failed to establish connection with server\r\n";
WSACleanup();
system("PAUSE");
return 0;
}

// If iMode!=0, non-blocking mode is enabled.
u_long iMode=1;
ioctlsocket(Socket,FIONBIO,&iMode);

// Main loop
for(;;)
{
// Display message from server
char buffer[1000];
memset(buffer,0,999);
int inDataLength=recv(Socket,buffer,1000,0);
std::cout<

int nError=WSAGetLastError();
if(nError!=WSAEWOULDBLOCK&&nError!=0)
{
std::cout<<"Winsock error code: "< std::cout<<"Server disconnected!\r\n";
// Shutdown our socket
shutdown(Socket,SD_SEND);

// Close our socket entirely
closesocket(Socket);

break;
}
Sleep(1000);
}

WSACleanup();
system("PAUSE");
return 0;
}

server

#include
#include
#pragma comment(lib,"ws2_32.lib")

int main()
{
WSADATA WsaDat;
if(WSAStartup(MAKEWORD(2,2),&WsaDat)!=0)
{
std::cout<<"WSA Initialization failed!\r\n";
WSACleanup();
system("PAUSE");
return 0;
}

SOCKET Socket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
if(Socket==INVALID_SOCKET)
{
std::cout<<"Socket creation failed.\r\n";
WSACleanup();
system("PAUSE");
return 0;
}

SOCKADDR_IN serverInf;
serverInf.sin_family=AF_INET;
serverInf.sin_addr.s_addr=INADDR_ANY;
serverInf.sin_port=htons(8888);

if(bind(Socket,(SOCKADDR*)(&serverInf),sizeof(serverInf))==SOCKET_ERROR)
{
std::cout<<"Unable to bind socket!\r\n";
WSACleanup();
system("PAUSE");
return 0;
}

listen(Socket,1);

SOCKET TempSock=SOCKET_ERROR;
while(TempSock==SOCKET_ERROR)
{
std::cout<<"Waiting for incoming connections...\r\n";
TempSock=accept(Socket,NULL,NULL);
}

// If iMode!=0, non-blocking mode is enabled.
u_long iMode=1;
ioctlsocket(Socket,FIONBIO,&iMode);

Socket=TempSock;
std::cout<<"Client connected!\r\n\r\n";

// Main loop
for(;;)
{
char *szMessage="Welcome to the server!\r\n";
send(Socket,szMessage,strlen(szMessage),0);

int nError=WSAGetLastError();
if(nError!=WSAEWOULDBLOCK&&nError!=0)
{
std::cout<<"Winsock error code: "< std::cout<<"Client disconnected!\r\n";

// Shutdown our socket
shutdown(Socket,SD_SEND);

// Close our socket entirely
closesocket(Socket);

break;
}

Sleep(1000);
}

WSACleanup();
system("PAUSE");
return 0;
}

_____________
Reference from

http://www.win32developer.com/tutorial/winsock/winsock_tutorial_3.shtm

setting eth0 interface with static IP address

Posted on by
Reply

sudo nano /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth1
iface eth1 inet dhcp

auto eth0
iface eth0 inet static
address x.y.z.a
network x.y.z.a
netmask 255.255.255.255