Infinite lop + recv() + select()

[vha]

How can I interrupt waiting for data in recv() function? I must wait until function recive data from server to proceed.

 

while (1)
{

readbytes = recv(gniazdo, (char*)&glowa, sizeof(glowa), 0 );


		if (Stylus.X<19 && Stylus.Y>172) 
	{
		if(keybord<=0)
			{if(keybord==-1)PA_InitKeyboard(2);PA_KeyboardIn(20, 95); keybord=1;}
		else
			{PA_KeyboardOut();keybord=0;}
			Stylus.X=0; Stylus.Y=0;

	}			
.
.
.
}

If i dont get data then i can't read stylus position.

 

I solve this problem on my PC:

struct timeval tv = {0,0};
while(1)
{			
			fd_set fs = {1,gniazdo};
   	if (select(0, &fs,NULL,NULL,&tv) == 1)
			{	

readbytes = recv(gniazdo, (char*)&glowa, sizeof(glowa), 0);
		if (...) 
	{
		...

	}			
.
.
.
}

But this method don’t seam to work on DS

what is wrong with my code? how can I fix it?

 

sorry for my poor Englis

[Weirdy]

Using select() and recv() would mean that the DS would have to be POSIX compatible, no? Or at least mean that there are libraries available that make it compatible with POSIX.

[vha]

Using select() and recv() would mean that the DS would have to be POSIX compatible, no? Or at least mean that there are libraries available that make it compatible with POSIX.

you want to say that i can't use select() on DS?

than why this guy is using it?:

http://www.1emulation.com/forums/index.php?showtopic=22833

 

as you can see code is very similar

[sgstair]

select() is supported in the dswifi lib - you just can't setup the fd_set like that.

Another alternative would be to use nonblocking sockets (research ioctl() and FIONBIO)

 

Good luck

[vha]

select() is supported in the dswifi lib - you just can't setup the fd_set like that.

Another alternative would be to use nonblocking sockets (research ioctl() and FIONBIO)

 

Good luck

god this is so simple

 

thx m8