1 /* 2 * routeup.h - routeup library interface 3 * Copyright (c) 2012 The Chromium Authors. All rights reserved. 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 * 7 * Call routeup_setup() to initialize a routeup context, then call 8 * routeup_once() until it returns nonzero (indicating an error) or until 9 * you're no longer interested in route changes. Call routeup_teardown() 10 * when you're done with an routeup context. 11 */ 12 13 #ifndef ROUTEUP_H 14 #define ROUTEUP_H 15 16 struct routeup 17 { 18 int netlinkfd; /* AF_NETLINK event socket */ 19 }; 20 21 #ifdef TARGET_OS_LINUX 22 int routeup_setup (struct routeup *ifc); 23 int routeup_once (struct routeup *ifc, unsigned int timeout); 24 int routeup_process (struct routeup *rtc); 25 void routeup_teardown (struct routeup *ifc); 26 #else 27 static inline int routeup_setup (struct routeup *ifc) 28 { 29 return 1; /* Fail for platforms without support. */ 30 } 31 static inline int routeup_once (struct routeup *ifc, unsigned int timeout) 32 { 33 return -1; 34 } 35 static inline int routeup_process (struct routeup *rtc) 36 { 37 return -1; 38 } 39 static inline void routeup_teardown (struct routeup *ifc) 40 { 41 } 42 #endif 43 44 #endif /* !ROUTEUP_H */ 45
