1 /*
   2  * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_JFR_RECORDER_REPOSITORY_JFREMERGENCYDUMP_HPP
  26 #define SHARE_JFR_RECORDER_REPOSITORY_JFREMERGENCYDUMP_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "jfr/utilities/jfrTypes.hpp"
  30 
  31 //
  32 // Responsible for creating an hs_err<pid>.jfr file in exceptional shutdown situations (crash, OOM)
  33 //
  34 class JfrEmergencyDump : AllStatic {
  35  private:
  36   static char _dump_path[];
  37   static const char* create_emergency_dump_path();
  38   static const char* create_emergency_chunk_path(const char* repository_path);
  39   static fio_fd emergency_dump_file_descriptor();
  40  public:
  41   static void on_vm_shutdown(bool exception_handler);
  42   static void on_vm_error(const char* repository_path);
  43   static const char* build_dump_path(const char* repository_path);
  44   static const char* dump_path() { return _dump_path; }
  45 };
  46 
  47 #endif // SHARE_JFR_RECORDER_REPOSITORY_JFREMERGENCYDUMP_HPP