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darksaboteur
Joined: 11 Dec 2007
Posts: 18
Location: Australia
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 Posted: Tue May 26, 2009 5:54 pm Post subject: How to set a timeout for connect() in sys/socket.h? |
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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: | int netSocketConnect()
{
struct sockaddr_in server;
unsigned long addr;
sock = socket( AF_INET, SOCK_STREAM, 0 ); //Create the socket
if (sock < 0)
{
return (-1);
}
//Creating socketadress of the Server
memset( &server, 0, sizeof (server)); //Consists of type, IP-adress and portnumber
if ((addr = inet_addr(ip)) != INADDR_NONE)
{
memcpy( (char *)&server.sin_addr, &addr, sizeof(addr));
}
else
{
return (-1);
}
server.sin_family = AF_INET; //IPv4-connection
server.sin_port = htons(port); //Portnumber
if(connect(sock,(struct sockaddr*)&server,sizeof(server)) <0) //Connecting to server
{
return (-1);
}
return 0;
} |
Thanks,
Nick |
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Torch
Joined: 28 May 2008
Posts: 842
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| Posted: Tue May 26, 2009 6:54 pm Post subject: |
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| 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. |
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darksaboteur
Joined: 11 Dec 2007
Posts: 18
Location: Australia
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| Posted: Tue May 26, 2009 7:39 pm Post subject: Thanks |
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Will give it a go and post back with how it goes.
Thanks,
Nick |
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darksaboteur
Joined: 11 Dec 2007
Posts: 18
Location: Australia
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| Posted: Tue May 26, 2009 11:59 pm Post subject: Got It Fixed :) |
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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: | int netSocketConnect()
{
struct sockaddr_in server;
unsigned long addr;
int NoBlock;
sock = sceNetInetSocket( AF_INET, SOCK_STREAM, 0 ); //Create the socket
if (sock < 0)
{
return (-1);
}
//Creating socketadress of the Server
memset( &server, 0, sizeof (server)); //Consists of type, IP-adress and portnumber
if ((addr = inet_addr(ip)) != INADDR_NONE)
{
memcpy( (char *)&server.sin_addr, &addr, sizeof(addr));
}
else
{
return (-1);
}
server.sin_family = AF_INET; //IPv4-connection
server.sin_port = htons(port); //Portnumber
NoBlock = 1;
sceNetInetSetsockopt(sock, SOL_SOCKET, SO_NONBLOCK, &NoBlock, sizeof(NoBlock));
if(sceNetInetConnect(sock,(struct sockaddr*)&server,sizeof(server)) <0) //Connecting to server
{
return (-1);
}
return 0;
} |
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 |
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Torch
Joined: 28 May 2008
Posts: 842
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| Posted: Wed May 27, 2009 1:42 am Post subject: |
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Nice find. I dont have the line
| Code: | | sceNetInetSetsockopt(sock, SOL_SOCKET, SO_NONBLOCK, &NoBlock, sizeof(NoBlock)); |
in my code at all though. Still responds within a second. |
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