How to set the Maximum Packet Size for the UDP Socket Buffer Size ?
How to set the Maximum Packet Size for the UDP Socket Buffer Size ?
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#define UDP_TX_BUF_SIZE 32768
#define UDP_MAX_PKT_SIZE 65536
// set udp recv buffer size to at least the largest possible udp packet
//size to avoid losing data on OSes that set this too low by default.
int optlen = sizeof(tmp);
if (!getsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, &optlen) && ( tmp <>
{ tmp = UDP_MAX_PKT_SIZE;
setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp));
}
Labels: UDP
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