255 DCmdArgument<bool> _all;
256 DCmdArgument<bool> _csv;
257 DCmdArgument<bool> _help;
258 DCmdArgument<char*> _columns;
259 public:
260 ClassStatsDCmd(outputStream* output, bool heap);
261 static const char* name() {
262 return "GC.class_stats";
263 }
264 static const char* description() {
265 return "Provide statistics about Java class meta data. Requires -XX:+UnlockDiagnosticVMOptions.";
266 }
267 static const char* impact() {
268 return "High: Depends on Java heap size and content.";
269 }
270 static int num_arguments();
271 virtual void execute(DCmdSource source, TRAPS);
272 };
273
274
275 class ClassHierarchyDCmd : public DCmd {
276 public:
277 ClassHierarchyDCmd(outputStream* output, bool heap) : DCmd(output, heap) { }
278 static const char* name() {
279 return "VM.class_hierarchy";
280 }
281 static const char* description() {
282 return "Print a list of all loaded classes, indented to show the class hiearchy.";
283 }
284 static const char* impact() {
285 return "Medium: Depends on number of loaded classes.";
286 }
287 virtual void execute(DCmdSource source, TRAPS);
288 };
289
290 // See also: thread_dump in attachListener.cpp
291 class ThreadDumpDCmd : public DCmdWithParser {
292 protected:
293 DCmdArgument<bool> _locks;
294 public:
295 ThreadDumpDCmd(outputStream* output, bool heap);
296 static const char* name() { return "Thread.print"; }
297 static const char* description() {
298 return "Print all threads with stacktraces.";
299 }
300 static const char* impact() {
301 return "Medium: Depends on the number of threads.";
302 }
303 static const JavaPermission permission() {
304 JavaPermission p = {"java.lang.management.ManagementPermission",
305 "monitor", NULL};
306 return p;
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255 DCmdArgument<bool> _all;
256 DCmdArgument<bool> _csv;
257 DCmdArgument<bool> _help;
258 DCmdArgument<char*> _columns;
259 public:
260 ClassStatsDCmd(outputStream* output, bool heap);
261 static const char* name() {
262 return "GC.class_stats";
263 }
264 static const char* description() {
265 return "Provide statistics about Java class meta data. Requires -XX:+UnlockDiagnosticVMOptions.";
266 }
267 static const char* impact() {
268 return "High: Depends on Java heap size and content.";
269 }
270 static int num_arguments();
271 virtual void execute(DCmdSource source, TRAPS);
272 };
273
274
275 class ClassHierarchyDCmd : public DCmdWithParser {
276 protected:
277 DCmdArgument<bool> _print_interfaces; // true if inherited interfaces should be printed.
278 DCmdArgument<bool> _print_subclasses; // true subclasses of specified classname should be printed.
279 DCmdArgument<char*> _classname; // Optional single class name whose hierarchy should be printed.
280 public:
281 ClassHierarchyDCmd(outputStream* output, bool heap);
282 static const char* name() {
283 return "VM.class_hierarchy";
284 }
285 static const char* description() {
286 return "Print a list of all loaded classes, indented to show the class hiearchy. "
287 "The name of each class is followed by the Klass* of its ClassLoader, "
288 "or \"null\" if loaded by the bootstrap class loader.";
289 }
290 static const char* impact() {
291 return "Medium: Depends on number of loaded classes.";
292 }
293 static int num_arguments();
294 virtual void execute(DCmdSource source, TRAPS);
295 };
296
297 // See also: thread_dump in attachListener.cpp
298 class ThreadDumpDCmd : public DCmdWithParser {
299 protected:
300 DCmdArgument<bool> _locks;
301 public:
302 ThreadDumpDCmd(outputStream* output, bool heap);
303 static const char* name() { return "Thread.print"; }
304 static const char* description() {
305 return "Print all threads with stacktraces.";
306 }
307 static const char* impact() {
308 return "Medium: Depends on the number of threads.";
309 }
310 static const JavaPermission permission() {
311 JavaPermission p = {"java.lang.management.ManagementPermission",
312 "monitor", NULL};
313 return p;
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