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Automatically get the field offset of gameserveritem_t.HasSuccessfulResponse instead of hardcoding it

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This commit is contained in:
Jake Rich 2024-08-12 21:44:23 -04:00
parent a80e8590d5
commit 7f747b0468
1 changed files with 16 additions and 2 deletions
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18
Facepunch.Steamworks/Interfaces/ISteamMatchmakingServers.cs
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@ -8,6 +8,9 @@ namespace Steamworks
{
internal partial class ISteamMatchmakingServers
{
// Cached offset of gameserveritem_t.m_bHadSuccessfulResponse
private static int hasSuccessfulResponseOffset;
/// <summary>
/// Read gameserveritem_t.m_bHadSuccessfulResponse without allocating the struct on the heap
/// </summary>
@ -21,8 +24,19 @@ internal bool HasServerResponded( HServerListRequest hRequest, int iServer )
// Return false if steam returned null
if ( returnValue == IntPtr.Zero ) return false;
// first 8 bytes is IPAddress, next 4 bytes is ping, next 1 byte is m_bHadSuccessfulResponse
return Marshal.ReadByte( IntPtr.Add( returnValue, 12 ) ) == 1;
// Cache the offset of m_bHadSuccessfulResponse
if ( hasSuccessfulResponseOffset == 0 )
{
hasSuccessfulResponseOffset = Marshal.OffsetOf<gameserveritem_t>( nameof( gameserveritem_t.HadSuccessfulResponse ) ).ToInt32();
if ( hasSuccessfulResponseOffset == 0 )
{
throw new Exception( "Failed to get offset of gameserveritem_t.HadSuccessfulResponse" );
}
}
// Read byte m_bHadSuccessfulResponse
return Marshal.ReadByte( IntPtr.Add( returnValue, hasSuccessfulResponseOffset ) ) == 1;
}
}
}