archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-27 23:04:50 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8023093: Add ManagementAgent.status diagnostic command

Browse source 
Reviewed-by: sla
This commit is contained in:
Jaroslav Bachorik 2015-03-26 10:37:10 +01:00
parent d350f07d51
commit c8b0b0b85c
3 changed files with 57 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
hotspot/src/share/vm/classfile/vmSymbols.hpp
View file

@ -559,6 +559,7 @@
template(startRemoteAgent_name, "startRemoteManagementAgent") \
template(startLocalAgent_name, "startLocalManagementAgent") \
template(stopRemoteAgent_name, "stopRemoteManagementAgent") \
template(getAgentStatus_name, "getManagementAgentStatus") \
template(java_lang_management_ThreadInfo_constructor_signature, "(Ljava/lang/Thread;ILjava/lang/Object;Ljava/lang/Thread;JJJJ[Ljava/lang/StackTraceElement;)V") \
template(java_lang_management_ThreadInfo_with_locks_constructor_signature, "(Ljava/lang/Thread;ILjava/lang/Object;Ljava/lang/Thread;JJJJ[Ljava/lang/StackTraceElement;[Ljava/lang/Object;[I[Ljava/lang/Object;)V") \
template(long_long_long_long_void_signature, "(JJJJ)V") \

33
hotspot/src/share/vm/services/diagnosticCommand.cpp
View file

@ -81,6 +81,7 @@ void DCmdRegistrant::register_dcmds(){
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false));
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false));
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false));
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false));
}
@ -708,6 +709,38 @@ void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPS) {
JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK);
}
JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) :
DCmd(output, heap_allocated) {
// do nothing
}
void JMXStatusDCmd::execute(DCmdSource source, TRAPS) {
ResourceMark rm(THREAD);
HandleMark hm(THREAD);
// Load and initialize the sun.management.Agent class
// invoke getManagementAgentStatus() method to generate the status info
// throw java.lang.NoSuchMethodError if method doesn't exist
Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
instanceKlassHandle ik (THREAD, k);
JavaValue result(T_OBJECT);
JavaCalls::call_static(&result, ik, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK);
jvalue* jv = (jvalue*) result.get_value_addr();
oop str = (oop) jv->l;
if (str != NULL) {
char* out = java_lang_String::as_utf8_string(str);
if (out) {
output()->print_cr("%s", out);
return;
}
}
output()->print_cr("Error obtaining management agent status");
}
VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) :
DCmd(output, heap_allocated) {
// do nothing

23
hotspot/src/share/vm/services/diagnosticCommand.hpp
View file

@ -452,6 +452,29 @@ public:
virtual void execute(DCmdSource source, TRAPS);
};
// Print the JMX system status
class JMXStatusDCmd : public DCmd {
public:
JMXStatusDCmd(outputStream *output, bool heap_allocated);
static const char *name() {
return "ManagementAgent.status";
}
static const char *description() {
return "Print the management agent status.";
}
static const JavaPermission permission() {
JavaPermission p = {"java.lang.management.ManagementPermission",
"monitor", NULL};
return p;
}
virtual void execute(DCmdSource source, TRAPS);
};
class RotateGCLogDCmd : public DCmd {
public:
RotateGCLogDCmd(outputStream* output, bool heap) : DCmd(output, heap) {}