1 /* 2 * Copyright (c) 2002-2012 Balabit 3 * Copyright (c) 1998-2012 Balázs Scheidler 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2.1 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 * 19 * As an additional exemption you are allowed to compile & link against the 20 * OpenSSL libraries as published by the OpenSSL project. See the file 21 * COPYING for details. 22 * 23 */ 24 25 #ifndef APPHOOK_H_INCLUDED 26 #define APPHOOK_H_INCLUDED 27 28 #include "syslog-ng.h" 29 30 enum 31 { 32 /* these states happen as a sequence and only happen once */ 33 AH_STARTUP, 34 AH_POST_DAEMONIZED, 35 AH_RUNNING, 36 AH_PRE_SHUTDOWN, 37 AH_SHUTDOWN, 38 39 /* this item separates state-like hooks from events happening regularly in 40 * the RUNNING state */ 41 __AH_STATE_MAX, 42 43 /* these happen from time to time and don't update the current state of 44 * the process */ 45 AH_CONFIG_STOPPED, /* configuration is deinitialized, threads have stopped */ 46 AH_CONFIG_CHANGED, /* configuration changed, threads are running again */ 47 AH_REOPEN_FILES, /* reopen files signal from syslog-ng-ctl */ 48 }; 49 50 typedef enum 51 { 52 AHM_RUN_ONCE, 53 AHM_RUN_REPEAT, 54 } ApplicationHookRunMode; 55 56 /* state-like hook entry points */ 57 void app_startup(void); 58 void app_post_daemonized(void); 59 void app_running(void); 60 void app_pre_shutdown(void); 61 void app_shutdown(void); 62 63 /* stateless entry points */ 64 void app_config_stopped(void); 65 void app_config_changed(void); 66 void app_reopen_files(void); 67 68 typedef void (*ApplicationHookFunc)(gint type, gpointer user_data); 69 70 gboolean app_is_starting_up(void); 71 gboolean app_is_shutting_down(void); 72 73 void register_application_hook(gint type, 74 ApplicationHookFunc func, gpointer user_data, 75 ApplicationHookRunMode run_mode); 76 77 void app_thread_start(void); 78 void app_thread_stop(void); 79 80 #endif 81