public string GetQueryAddressString()
{
using (NativeBuffer buffer = NativeBuffer.CopyToNative(this))
{
IntPtr stringPtr = NativeMethods.MatchmakingServerNetworkAddress_GetQueryString(buffer.UnmanagedMemory);
return(NativeHelpers.ToStringAnsi(stringPtr));
}
}
private ServerListRequestHandle ServerRequest(ServerRequestType requestType, AppID appID,
MatchMakingKeyValuePair[] filters, MatchmakingServerListResponse requestResponse)
{
// Code reuse FTW!
// Allocate an array that will hold addresses to native MatchMakingKeyValuePair objects
using (NativeBuffer arrayBuffer = new NativeBuffer(Marshal.SizeOf(typeof(IntPtr)) * filters.Length))
{
NativeBuffer[] nativeObjects = new NativeBuffer[filters.Length];
// Fill each array slot with an address to an actual object
try
{
for (int i = 0; i < filters.Length; i++)
{
// Copy the managed objects to native memory
NativeBuffer buffer = NativeBuffer.CopyToNative(filters[i]);
nativeObjects[i] = buffer;
// Add the native address to the array
Marshal.WriteInt32(arrayBuffer.UnmanagedMemory, i * Marshal.SizeOf(typeof(int)), buffer.UnmanagedMemory.ToInt32());
}
// Now do the actual request
switch (requestType)
{
case ServerRequestType.Internet:
return(new ServerListRequestHandle(
NativeMethods.MatchmakingServers_RequestInternetServerList(appID.AsUInt32,
arrayBuffer.UnmanagedMemory, (uint)filters.Length, requestResponse.ObjectId)));
case ServerRequestType.Friends:
return(new ServerListRequestHandle(
NativeMethods.MatchmakingServers_RequestFriendsServerList(appID.AsUInt32,
arrayBuffer.UnmanagedMemory, (uint)filters.Length, requestResponse.ObjectId)));
case ServerRequestType.Favorites:
return(new ServerListRequestHandle(
NativeMethods.MatchmakingServers_RequestFavoritesServerList(appID.AsUInt32,
arrayBuffer.UnmanagedMemory, (uint)filters.Length, requestResponse.ObjectId)));
case ServerRequestType.History:
return(new ServerListRequestHandle(
NativeMethods.MatchmakingServers_RequestHistoryServerList(appID.AsUInt32,
arrayBuffer.UnmanagedMemory, (uint)filters.Length, requestResponse.ObjectId)));
case ServerRequestType.Spectator:
return(new ServerListRequestHandle(
NativeMethods.MatchmakingServers_RequestSpectatorServerList(appID.AsUInt32,
arrayBuffer.UnmanagedMemory, (uint)filters.Length, requestResponse.ObjectId)));
default:
// This should never happen as our code can not be allowed to make this error
throw new ArgumentException();
}
}
finally
{
// Cleanup in all cases. Exception or not.
foreach (var item in nativeObjects)
{
if (item != null)
{
item.Dispose();
}
}
}
}
}