polardbxengine/storage/ndb/include/kernel/signaldata/StopForCrash.hpp

55 lines
1.8 KiB
C++

/* Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is also distributed with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have included with MySQL.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef STOP_FOR_CRASH_HPP
#define STOP_FOR_CRASH_HPP
#include "SignalData.hpp"
#define JAM_FILE_ID 171
/*
The GSN_STOP_FOR_CRASH signal is only used in multi-threaded ndbd.
It is used during crash handling, sent as a prio A signal from the
crashing thread to all other threads to make sure that they stop before
generating the crash dump (to avoid dumping an inconsistent state of jam()
or signal buffer).
*/
class StopForCrash {
friend class SimulatedBlock;
friend bool printSTOP_FOR_CRASH(FILE *,const Uint32 *, Uint32, Uint16);
public:
STATIC_CONST( SignalLength = 1 );
public:
Uint32 flags; // No information in this signal atm.
};
#undef JAM_FILE_ID
#endif