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 /*

  * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code 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 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

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  */

 #ifndef SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP

 #define SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP

 #include "runtime/arguments.hpp"

 #include "classfile/vmSymbols.hpp"

 #include "utilities/ostream.hpp"

 #include "runtime/vm_version.hpp"

 #include "runtime/vmThread.hpp"

 #include "runtime/os.hpp"

 #include "services/diagnosticArgument.hpp"

 #include "services/diagnosticCommand.hpp"

 #include "services/diagnosticFramework.hpp"

 #include "services/diagnosticCommand_ext.hpp"

 #include "utilities/macros.hpp"

 class HelpDCmd : public DCmdWithParser {

 protected:

   DCmdArgument<bool> _all;

   DCmdArgument<char*> _cmd;

 public:

   HelpDCmd(outputStream* output, bool heap);

   static const char* name() { return "help"; }

   static const char* description() {

     return "For more information about a specific command use 'help <command>'. "

            "With no argument this will show a list of available commands. "

            "'help all' will show help for all commands.";

   }

   static const char* impact() { return "Low"; }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 class VersionDCmd : public DCmd {

 public:

   VersionDCmd(outputStream* output, bool heap) : DCmd(output,heap) { }

   static const char* name() { return "VM.version"; }

   static const char* description() {

     return "Print JVM version information.";

   }

   static const char* impact() { return "Low"; }

   static const JavaPermission permission() {

     JavaPermission p = {"java.util.PropertyPermission",

                         "java.vm.version", "read"};

     return p;

   }

   static int num_arguments() { return 0; }

   virtual void execute(DCmdSource source, TRAPS);

 };

 class CommandLineDCmd : public DCmd {

 public:

   CommandLineDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }

   static const char* name() { return "VM.command_line"; }

   static const char* description() {

     return "Print the command line used to start this VM instance.";

   }

   static const char* impact() { return "Low"; }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

                         "monitor", NULL};

     return p;

   }

   static int num_arguments() { return 0; }

   virtual void execute(DCmdSource source, TRAPS) {

     Arguments::print_on(_output);

   }

 };

 // See also: get_system_properties in attachListener.cpp

 class PrintSystemPropertiesDCmd : public DCmd {

 public:

   PrintSystemPropertiesDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }

     static const char* name() { return "VM.system_properties"; }

     static const char* description() {

       return "Print system properties.";

     }

     static const char* impact() {

       return "Low";

     }

     static const JavaPermission permission() {

       JavaPermission p = {"java.util.PropertyPermission",

                           "*", "read"};

       return p;

     }

     static int num_arguments() { return 0; }

     virtual void execute(DCmdSource source, TRAPS);

 };

 // See also: print_flag in attachListener.cpp

 class PrintVMFlagsDCmd : public DCmdWithParser {

 protected:

   DCmdArgument<bool> _all;

 public:

   PrintVMFlagsDCmd(outputStream* output, bool heap);

   static const char* name() { return "VM.flags"; }

   static const char* description() {

     return "Print VM flag options and their current values.";

   }

   static const char* impact() {

     return "Low";

   }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

                         "monitor", NULL};

     return p;

   }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 class VMDynamicLibrariesDCmd : public DCmd {

 public:

   VMDynamicLibrariesDCmd(outputStream* output, bool heap);

   static const char* name() {

     return "VM.dynlibs";

   }

   static const char* description() {

     return "Print loaded dynamic libraries.";

   }

   static const char* impact() {

     return "Low";

   }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

                         "monitor", NULL};

     return p;

   }

   static int num_arguments() {

     return 0;

   };

   virtual void execute(DCmdSource source, TRAPS);

 };

 class VMUptimeDCmd : public DCmdWithParser {

 protected:

   DCmdArgument<bool> _date;

 public:

   VMUptimeDCmd(outputStream* output, bool heap);

   static const char* name() { return "VM.uptime"; }

   static const char* description() {

     return "Print VM uptime.";

   }

   static const char* impact() {

     return "Low";

   }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 class SystemGCDCmd : public DCmd {

 public:

   SystemGCDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }

     static const char* name() { return "GC.run"; }

     static const char* description() {

       return "Call java.lang.System.gc().";

     }

     static const char* impact() {

       return "Medium: Depends on Java heap size and content.";

     }

     static int num_arguments() { return 0; }

     virtual void execute(DCmdSource source, TRAPS);

 };

 class RunFinalizationDCmd : public DCmd {

 public:

   RunFinalizationDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }

     static const char* name() { return "GC.run_finalization"; }

     static const char* description() {

       return "Call java.lang.System.runFinalization().";

     }

     static const char* impact() {

       return "Medium: Depends on Java content.";

     }

     static int num_arguments() { return 0; }

     virtual void execute(DCmdSource source, TRAPS);

 };

 class HeapInfoDCmd : public DCmd {

 public:

   HeapInfoDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }

   static const char* name() { return "GC.heap_info"; }

   static const char* description() {

     return "Provide generic Java heap information.";

   }

   static const char* impact() {

     return "Medium";

   }

   static int num_arguments() { return 0; }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

       "monitor", NULL};

       return p;

   }

   virtual void execute(DCmdSource source, TRAPS);

 };

 class FinalizerInfoDCmd : public DCmd {

 public:

   FinalizerInfoDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }

   static const char* name() { return "GC.finalizer_info"; }

   static const char* description() {

     return "Provide information about Java finalization queue.";

   }

   static const char* impact() {

     return "Medium";

   }

   static int num_arguments() { return 0; }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

       "monitor", NULL};

       return p;

   }

   virtual void execute(DCmdSource source, TRAPS);

 };

 #if INCLUDE_SERVICES   // Heap dumping supported

 // See also: dump_heap in attachListener.cpp

 class HeapDumpDCmd : public DCmdWithParser {

 protected:

   DCmdArgument<char*> _filename;

   DCmdArgument<bool>  _all;

 public:

   HeapDumpDCmd(outputStream* output, bool heap);

   static const char* name() {

     return "GC.heap_dump";

   }

   static const char* description() {

     return "Generate a HPROF format dump of the Java heap.";

   }

   static const char* impact() {

     return "High: Depends on Java heap size and content. "

            "Request a full GC unless the '-all' option is specified.";

   }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

                         "monitor", NULL};

     return p;

   }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 #endif // INCLUDE_SERVICES

 // See also: inspectheap in attachListener.cpp

 class ClassHistogramDCmd : public DCmdWithParser {

 protected:

   DCmdArgument<bool> _all;

 public:

   ClassHistogramDCmd(outputStream* output, bool heap);

   static const char* name() {

     return "GC.class_histogram";

   }

   static const char* description() {

     return "Provide statistics about the Java heap usage.";

   }

   static const char* impact() {

     return "High: Depends on Java heap size and content.";

   }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

                         "monitor", NULL};

     return p;

   }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 class ClassStatsDCmd : public DCmdWithParser {

 protected:

   DCmdArgument<bool> _all;

   DCmdArgument<bool> _csv;

   DCmdArgument<bool> _help;

   DCmdArgument<char*> _columns;

 public:

   ClassStatsDCmd(outputStream* output, bool heap);

   static const char* name() {

     return "GC.class_stats";

   }

   static const char* description() {

     return "Provide statistics about Java class meta data. Requires -XX:+UnlockDiagnosticVMOptions.";

   }

   static const char* impact() {

     return "High: Depends on Java heap size and content.";

   }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 // See also: thread_dump in attachListener.cpp

 class ThreadDumpDCmd : public DCmdWithParser {

 protected:

   DCmdArgument<bool> _locks;

 public:

   ThreadDumpDCmd(outputStream* output, bool heap);

   static const char* name() { return "Thread.print"; }

   static const char* description() {

     return "Print all threads with stacktraces.";

   }

   static const char* impact() {

     return "Medium: Depends on the number of threads.";

   }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

                         "monitor", NULL};

     return p;

   }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 // Enhanced JMX Agent support

 class JMXStartRemoteDCmd : public DCmdWithParser {

   // Explicitly list all properties that could be

   // passed to Agent.startRemoteManagementAgent()

   // com.sun.management is omitted

   DCmdArgument<char *> _config_file;

   DCmdArgument<char *> _jmxremote_host;

   DCmdArgument<char *> _jmxremote_port;

   DCmdArgument<char *> _jmxremote_rmi_port;

   DCmdArgument<char *> _jmxremote_ssl;

   DCmdArgument<char *> _jmxremote_registry_ssl;

   DCmdArgument<char *> _jmxremote_authenticate;

   DCmdArgument<char *> _jmxremote_password_file;

   DCmdArgument<char *> _jmxremote_access_file;

   DCmdArgument<char *> _jmxremote_login_config;

   DCmdArgument<char *> _jmxremote_ssl_enabled_cipher_suites;

   DCmdArgument<char *> _jmxremote_ssl_enabled_protocols;

   DCmdArgument<char *> _jmxremote_ssl_need_client_auth;

   DCmdArgument<char *> _jmxremote_ssl_config_file;

   // JDP support

   // Keep autodiscovery char* not bool to pass true/false

   // as property value to java level.

   DCmdArgument<char *> _jmxremote_autodiscovery;

   DCmdArgument<jlong>  _jdp_port;

   DCmdArgument<char *> _jdp_address;

   DCmdArgument<char *> _jdp_source_addr;

   DCmdArgument<jlong>  _jdp_ttl;

   DCmdArgument<jlong>  _jdp_pause;

   DCmdArgument<char *> _jdp_name;

 public:

   JMXStartRemoteDCmd(outputStream *output, bool heap_allocated);

   static const char *name() {

     return "ManagementAgent.start";

   }

   static const char *description() {

     return "Start remote management agent.";

   }

   static int num_arguments();

   virtual void execute(DCmdSource source, TRAPS);

 };

 class JMXStartLocalDCmd : public DCmd {

   // Explicitly request start of local agent,

   // it will not be started by start dcmd

 public:

   JMXStartLocalDCmd(outputStream *output, bool heap_allocated);

   static const char *name() {

     return "ManagementAgent.start_local";

   }

   static const char *description() {

     return "Start local management agent.";

   }

   virtual void execute(DCmdSource source, TRAPS);

 };

 class JMXStopRemoteDCmd : public DCmd {

 public:

   JMXStopRemoteDCmd(outputStream *output, bool heap_allocated) :

   DCmd(output, heap_allocated) {

     // Do Nothing

   }

   static const char *name() {

     return "ManagementAgent.stop";

   }

   static const char *description() {

     return "Stop remote management agent.";

   }

   virtual void execute(DCmdSource source, TRAPS);

 };

 class RotateGCLogDCmd : public DCmd {

 public:

   RotateGCLogDCmd(outputStream* output, bool heap) : DCmd(output, heap) {}

   static const char* name() { return "GC.rotate_log"; }

   static const char* description() {

     return "Force the GC log file to be rotated.";

   }

   static const char* impact() { return "Low"; }

   virtual void execute(DCmdSource source, TRAPS);

   static int num_arguments() { return 0; }

   static const JavaPermission permission() {

     JavaPermission p = {"java.lang.management.ManagementPermission",

                         "control", NULL};

     return p;

   }

 };

 #endif // SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP