From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 20:24:20 +0200 Subject: Adding upstream version 14.2.21. Signed-off-by: Daniel Baumann --- src/global/signal_handler.h | 56 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 src/global/signal_handler.h (limited to 'src/global/signal_handler.h') diff --git a/src/global/signal_handler.h b/src/global/signal_handler.h new file mode 100644 index 00000000..c101b2e2 --- /dev/null +++ b/src/global/signal_handler.h @@ -0,0 +1,56 @@ +// -*- 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); + +#ifdef HAVE_SIGDESCR_NP +# define sig_str(signum) sigdescr_np(signum) +#elif HAVE_REENTRANT_STRSIGNAL +# define sig_str(signum) strsignal(signum) +#else +# define sig_str(signum) sys_siglist[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 -- cgit v1.2.3