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Infinite lop + recv() + select()


vha
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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 :D

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

 

sorry for my poor Englis

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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 :D

god this is so simple

 

thx m8

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