feat: add platform-specific TCP timeout configurations for Darwin, FreeBSD, Windows, and Linux

pkg/interfaces/tcp_windows.go

@@ -0,0 +1,40 @@
+package interfaces
+
+import (
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/Sudo-Ivan/reticulum-go/pkg/debug"
+)
+
+func (tc *TCPClientInterface) setTimeoutsLinux() error {
+	return tc.setTimeoutsWindows()
+}
+
+func (tc *TCPClientInterface) setTimeoutsOSX() error {
+	return tc.setTimeoutsWindows()
+}
+
+func (tc *TCPClientInterface) setTimeoutsWindows() error {
+	tcpConn, ok := tc.conn.(*net.TCPConn)
+	if !ok {
+		return fmt.Errorf("not a TCP connection")
+	}
+
+	if err := tcpConn.SetKeepAlive(true); err != nil {
+		return fmt.Errorf("failed to enable keepalive: %v", err)
+	}
+
+	if err := tcpConn.SetKeepAlivePeriod(TCP_PROBE_INTERVAL); err != nil {
+		debug.Log(debug.DEBUG_VERBOSE, "Failed to set keepalive period", "error", err)
+	}
+
+	debug.Log(debug.DEBUG_VERBOSE, "TCP keepalive configured (Windows)", "i2p", tc.i2pTunneled)
+	return nil
+}
+
+func platformGetRTT(fd uintptr) time.Duration {
+	return 0
+}
+