How to set a timeout for connect() in sys/socket.h?

[darksaboteur]

Hi,
I was wondering if anyone could help me out.
In the code below when the connect() function is called it waits for quite a while if it cannot connect to the PC, ie. the PC is turned off.
I was wondering how to implement a timeout for connect() so it only waits 1-2 seconds.
I have googled and used the forum search so I apologise ahead of time if I have missed anything.

Code: Select all

int netSocketConnect()
{
struct sockaddr_in server;
unsigned long addr;

    sock = socket( AF_INET, SOCK_STREAM, 0 );                       //Create the socket
    if &#40;sock < 0&#41;
    &#123;
    return &#40;-1&#41;;
    &#125;
                                                                    //Creating socketadress of the Server
    memset&#40; &server, 0, sizeof &#40;server&#41;&#41;;                           //Consists of type, IP-adress and portnumber

    if &#40;&#40;addr = inet_addr&#40;ip&#41;&#41; != INADDR_NONE&#41;
    &#123;
    memcpy&#40; &#40;char *&#41;&server.sin_addr, &addr, sizeof&#40;addr&#41;&#41;;
    &#125;
    else
    &#123;
    return &#40;-1&#41;;
    &#125;

    server.sin_family = AF_INET;                                    //IPv4-connection
    server.sin_port = htons&#40;port&#41;;                                  //Portnumber

    if&#40;connect&#40;sock,&#40;struct sockaddr*&#41;&server,sizeof&#40;server&#41;&#41; <0&#41;    //Connecting to server
    &#123;
    return &#40;-1&#41;;
    &#125;
return 0;
&#125;

Thanks,
Nick

[Torch]

I haven't used the Berkley sockets on PSP, but when I use sceNetInetConnect to connect to my PC's IP it return immediately if the PC is off, or even if its on and there's no server on that port.

[darksaboteur]

Will give it a go and post back with how it goes.

Thanks,
Nick

[darksaboteur]

Just thought I'd post this in case anyone else has this problem.
Changing to the sce sockets did not fix the problem, but changing the socket to being non-blocking did.
The code now reads

Code: Select all

int netSocketConnect()
{
struct sockaddr_in server;
unsigned long addr;
int NoBlock;
    sock = sceNetInetSocket( AF_INET, SOCK_STREAM, 0 );                       //Create the socket
    if &#40;sock < 0&#41;
    &#123;
    return &#40;-1&#41;;
    &#125;
                                                                    //Creating socketadress of the Server
    memset&#40; &server, 0, sizeof &#40;server&#41;&#41;;                           //Consists of type, IP-adress and portnumber

    if &#40;&#40;addr = inet_addr&#40;ip&#41;&#41; != INADDR_NONE&#41;
    &#123;
    memcpy&#40; &#40;char *&#41;&server.sin_addr, &addr, sizeof&#40;addr&#41;&#41;;
    &#125;
    else
    &#123;
    return &#40;-1&#41;;
    &#125;

    server.sin_family = AF_INET;                                    //IPv4-connection
    server.sin_port = htons&#40;port&#41;;                                  //Portnumber

    NoBlock = 1;
    sceNetInetSetsockopt&#40;sock, SOL_SOCKET, SO_NONBLOCK, &NoBlock, sizeof&#40;NoBlock&#41;&#41;;

    if&#40;sceNetInetConnect&#40;sock,&#40;struct sockaddr*&#41;&server,sizeof&#40;server&#41;&#41; <0&#41;    //Connecting to server
    &#123;
    return &#40;-1&#41;;
    &#125;
return 0;
&#125;

Funnily enough I found the solution on ps2dev... just via google ;)
The important line being "sceNetInetSetsockopt(sock, SOL_SOCKET, SO_NONBLOCK, &NoBlock, sizeof(NoBlock));"
Here is the thread for those interested http://forums.ps2dev.org/viewtopic.php?p=67436

[Torch]

Nice find. I dont have the line

Code: Select all

sceNetInetSetsockopt(sock, SOL_SOCKET, SO_NONBLOCK, &NoBlock, sizeof(NoBlock)); 

in my code at all though. Still responds within a second.