1 /* 2 * systemd socket activation support 3 * 4 * Copyright 2017 Red Hat, Inc. and/or its affiliates 5 * 6 * Authors: 7 * Richard W.M. Jones <rjones@redhat.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 */ 12 13 #ifndef QEMU_SYSTEMD_H 14 #define QEMU_SYSTEMD_H 15 16 #define FIRST_SOCKET_ACTIVATION_FD 3 /* defined by systemd ABI */ 17 18 /* 19 * Check if socket activation was requested via use of the 20 * LISTEN_FDS and LISTEN_PID environment variables. 21 * 22 * Returns 0 if no socket activation, or the number of FDs. 23 */ 24 unsigned int check_socket_activation(void); 25 26 #endif 27