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Detect hash collisions in rpc registration (#231)

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Paul Pacheco 2019-01-02 19:32:47 -06:00 committed by GitHub
parent 92d35a6039
commit eb1863a96c
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1 changed files with 15 additions and 1 deletions
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16
Mirror/Runtime/NetworkBehaviour.cs
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@ -201,9 +201,23 @@ protected class Invoker
protected static void RegisterDelegate(Type invokeClass, string cmdName, UNetInvokeType invokerType, CmdDelegate func)
{
int cmdHash = (invokeClass + ":" + cmdName).GetStableHashCode(); // type+func so Inventory.RpcUse != Equipment.RpcUse
if (s_CmdHandlerDelegates.ContainsKey(cmdHash))
{
return;
// something already registered this hash
Invoker oldInvoker = s_CmdHandlerDelegates[cmdHash];
if (oldInvoker.invokeClass == invokeClass && oldInvoker.invokeType == invokerType && oldInvoker.invokeFunction == func)
{
// it's all right, it was the same function
return;
}
Debug.LogError(string.Format(
"Function {0}.{1} and {2}.{3} have the same hash. Please rename one of them",
oldInvoker.invokeClass,
oldInvoker.invokeFunction.GetMethodName(),
invokeClass,
oldInvoker.invokeFunction.GetMethodName()));
}
Invoker invoker = new Invoker();
invoker.invokeType = invokerType;