SDL Wiki
(This function is part of SDL_net, a separate library from SDL.)


Set the percentage of simulated packet loss for packets sent on the socket.

Header File

Defined in <SDL_net.h>


void SDLNet_UDP_SetPacketLoss(UDPsocket sock, int percent);

Function Parameters

UDPsocket sock the socket to simulate packet loss on.
int percent a value from 0 to 100 of likelihood to drop a packet (higher the number means more likelihood of dropping.


SDL_net can optionally, at random, drop packets that are being sent and received, to simulate bad networking conditions. As these sort of conditions can happen in the real world but likely won't between machines on the same LAN, you can use this function in testing to make sure your app is robust against network problems even on a fast, reliable network.

You probably don't want to use this function outside of local testing.


This function is available since SDL_net 2.0.0.

CategoryAPI, CategoryAPIFunction

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