// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- // vim: ts=8 sw=2 smarttab /* * Ceph - scalable distributed file system * * Copyright (C) 2011 New Dream Network * * This is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License version 2.1, as published by the Free Software * Foundation. See file COPYING. * */ #ifndef CEPH_GLOBAL_SIGNAL_HANDLER_H #define CEPH_GLOBAL_SIGNAL_HANDLER_H #include #include "acconfig.h" typedef void (*signal_handler_t)(int); #ifndef HAVE_REENTRANT_STRSIGNAL # define sig_str(signum) sys_siglist[signum] #else # define sig_str(signum) strsignal(signum) #endif void install_sighandler(int signum, signal_handler_t handler, int flags); // handles SIGHUP void sighup_handler(int signum); // Install the standard Ceph signal handlers void install_standard_sighandlers(void); /// initialize async signal handler framework void init_async_signal_handler(); /// shutdown async signal handler framework void shutdown_async_signal_handler(); /// queue an async signal void queue_async_signal(int signum); /// install a safe, async, callback for the given signal void register_async_signal_handler(int signum, signal_handler_t handler); void register_async_signal_handler_oneshot(int signum, signal_handler_t handler); /// uninstall a safe async signal callback void unregister_async_signal_handler(int signum, signal_handler_t handler); #endif