GlobalHttpSettings.cs

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namespace System.Net.Http;
 
internal static class GlobalHttpSettings
{
    internal static class DiagnosticsHandler
    {
        public static bool EnableActivityPropagation { get; } = RuntimeSettingParser.QueryRuntimeSettingSwitch("System.Net.Http.EnableActivityPropagation", "DOTNET_SYSTEM_NET_HTTP_ENABLEACTIVITYPROPAGATION", defaultValue: true);
 
    }
 
    internal static class SocketsHttpHandler
    {
        public static bool AllowHttp2 { get; } = RuntimeSettingParser.QueryRuntimeSettingSwitch("System.Net.Http.SocketsHttpHandler.Http2Support", "DOTNET_SYSTEM_NET_HTTP_SOCKETSHTTPHANDLER_HTTP2SUPPORT", defaultValue: true);
 
 
        public static bool AllowHttp3 { get; } = RuntimeSettingParser.QueryRuntimeSettingSwitch("System.Net.SocketsHttpHandler.Http3Support", "DOTNET_SYSTEM_NET_HTTP_SOCKETSHTTPHANDLER_HTTP3SUPPORT", defaultValue: false);
 
 
        public static bool DisableDynamicHttp2WindowSizing { get; } = RuntimeSettingParser.QueryRuntimeSettingSwitch("System.Net.SocketsHttpHandler.Http2FlowControl.DisableDynamicWindowSizing", "DOTNET_SYSTEM_NET_HTTP_SOCKETSHTTPHANDLER_HTTP2FLOWCONTROL_DISABLEDYNAMICWINDOWSIZING", defaultValue: false);
 
 
        public static int MaxHttp2StreamWindowSize { get; } = GetMaxHttp2StreamWindowSize();
 
 
        public static double Http2StreamWindowScaleThresholdMultiplier { get; } = GetHttp2StreamWindowScaleThresholdMultiplier();
 
 
        private static int GetMaxHttp2StreamWindowSize()
        {
            int num = RuntimeSettingParser.ParseInt32EnvironmentVariableValue("DOTNET_SYSTEM_NET_HTTP_SOCKETSHTTPHANDLER_FLOWCONTROL_MAXSTREAMWINDOWSIZE", 16777216);
            if (num < 65535)
            {
                num = 65535;
            }
            return num;
        }
 
        private static double GetHttp2StreamWindowScaleThresholdMultiplier()
        {
            double num = RuntimeSettingParser.ParseDoubleEnvironmentVariableValue("DOTNET_SYSTEM_NET_HTTP_SOCKETSHTTPHANDLER_FLOWCONTROL_STREAMWINDOWSCALETHRESHOLDMULTIPLIER", 1.0);
            if (num < 0.0)
            {
                num = 1.0;
            }
            return num;
        }
    }
}