simplexmq/spec/modules/Simplex/Messaging/Transport/KeepAlive.md

Simplex.Messaging.Transport.KeepAlive

Platform-specific TCP keepalive configuration via CApiFFI.

Source: Transport/KeepAlive.hs

Platform-specific TCP_KEEPIDLE

macOS uses TCP_KEEPALIVE instead of TCP_KEEPIDLE. The CPP conditional imports the correct constant at compile time via foreign import capi. Windows uses hardcoded numeric values — the source comment states: "The values are copied from windows::Win32::Networking::WinSock."

Defaults: idle=30s, interval=15s, count=4.