init: pristine aerc 0.20.0 source

lib/keepalive_linux.go

@@ -0,0 +1,18 @@
+//go:build linux
+// +build linux
+
+package lib
+
+import (
+	"syscall"
+)
+
+func SetTcpKeepaliveProbes(fd, count int) error {
+	return syscall.SetsockoptInt(
+		fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPCNT, count)
+}
+
+func SetTcpKeepaliveInterval(fd, interval int) error {
+	return syscall.SetsockoptInt(
+		fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, interval)
+}