[[#SetOption_2|SetOption]] with "DoNotCloseSocket" is only available when [[#SetSocketDescriptor]] was not used previously. "EnableAlpn" can optionally use the state setup by [[#SetSocketDescriptor]], but it will return 0 regardless. | [[#SetOption_2|SetOption]] with "DoNotCloseSocket" is only available when [[#SetSocketDescriptor]] was not used previously. "EnableAlpn" can optionally use the state setup by [[#SetSocketDescriptor]], but it will return 0 regardless. |