Download Nokia M2M Platform M2M System Protocol 2 Socket

Parameter
Description
Socket ID
A handle to a socket to be connected
Address pointer
The address of a socket to which the existing socket is
connected
Address length
The length of the socket address in bytes
Table 12. The sp2_connect function call return values
Return value
Description
SP2_SOCKET_OK
Socket was connected successfully
SP2_SOCKET_ERROR
Connection failure
An example of connecting a socket:
DWORD socketID; // a handle to the socket
DWORD status; // a return value from the function
struct sp2_sockaddr_in addr; // the address of the socket to be connected
addr.sin_family = SP2_AF_INET; // addressing scheme is IPv4
addr.sin_port = sp2_htons(1234); // port to which socket is to be connected
addr.sin_addr = sp2_inet_addr(“127.0.0.1”); // a socket address
status = sp2_connect(socketID,(sp2_sockaddr *)&addr,sizeof(addr));
if (status == SP2_SOCKET_OK)
5.1.6
Sending data to a socket (sp2_send / sp2_sendto)
The sp2_send and sp2_sendto functions write data to a previously
connected M2M System Protocol 2 socket. The sp2_send function is used with
TCP sockets, and the sp2_sendto function is used with UDP sockets. Both
function calls are illustrated in Figure 8.
M2M System Protocol 2
Application software
Nokia M2M module software
sp2_send / sp2_sendto()
SEND / SENDTO()
Start sending data
SEND_RESP()
status()
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