Prosoft-technology MVI69-ADMNET Instrukcja Użytkownika Pobierz pdf (Strona 66)

Application Development Function Library - ADMNET API MVI-ADMNET ♦ 'C' Programmable

Developer's Guide 'C' Programmable Application Development Module with Ethernet

Page 66 of 122 ProSoft Technology, Inc.

February 20, 2013

ADM_open_sk

Syntax

int ADM_open_sk(char *skName, char *ServerIPAddress, int protocol);

Parameters

skName

Name of the socket that has been initialized and used to send data.

ServerIPAddress

IP address that will be used to send data to.

protocol

Specified protocol to send over Ethernet (USE_TCP or USE_UDP).

Description

ADM_open_sk opens a socket according to the name previously initialized,

skName, with ADM_init_socket given, and assigns IP address, ServerIPAddress

for send function with specific protocol, either UDP or TCP. ADM_init_socket

must be used before this function. Returns SK_TIMEOUT if no connection is

made within 30 seconds.

IMPORTANT: After the API has been opened, ADM_close_sk should always be called for closing

the socket. 0.0.0.0 passes as ServerIPAddress to open socket as a server to listen to a message

from client.

Return Value

SK_SUCCESS

API has successfully opened socket.

SK_PROCESS_SOCKET

Open is still in process.

SK_NOT_FOUND

API could not find an initialized socket with the name passed to the

function.

SK_TIMEOUT

Time out opening socket.

SK_OPEN_FAIL

Socket could not be opened.

Example

char sockName1[ ] = "SendSocket";

int buffSize1 = 4096;

int port_1 = 6565;

int numSocket1 = 1;

int result;

sock_init(); //initialize the socket interface

ADM_init_socket(numSocket1, port_1, buffSize1, sockName1);

while ((result = ADM_open_sk(sockName1, "0.0.0.0",

USE_TCP))==SK_PROCESS_SOCKET);

if (result==SK_SUCCESS)

{

printf("successfully Opened a connection!\n");

} else {

printf("Error Opening a connection! %d\n", result);

}

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