JDK14/Java14源码在线阅读
/*
* Copyright (c) 2012, 2019, 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.
*
*/
#include "precompiled.hpp"
#include "classfile/javaClasses.hpp"
#include "classfile/vmSymbols.hpp"
#include "jfr/jfr.hpp"
#include "jfr/dcmd/jfrDcmds.hpp"
#include "jfr/jni/jfrJavaSupport.hpp"
#include "jfr/recorder/jfrRecorder.hpp"
#include "jfr/recorder/service/jfrOptionSet.hpp"
#include "memory/resourceArea.hpp"
#include "oops/oop.inline.hpp"
#include "oops/symbol.hpp"
#include "runtime/handles.inline.hpp"
#include "services/diagnosticArgument.hpp"
#include "services/diagnosticFramework.hpp"
#include "utilities/globalDefinitions.hpp"
#ifdef _WINDOWS
#define JFR_FILENAME_EXAMPLE "C:\\Users\\user\\My Recording.jfr"
#endif
#ifdef __APPLE__
#define JFR_FILENAME_EXAMPLE "/Users/user/My Recording.jfr"
#endif
#ifndef JFR_FILENAME_EXAMPLE
#define JFR_FILENAME_EXAMPLE "/home/user/My Recording.jfr"
#endif
// JNIHandle management
// ------------------------------------------------------------------
// push_jni_handle_block
//
// Push on a new block of JNI handles.
static void push_jni_handle_block(Thread* const thread) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(thread));
// Allocate a new block for JNI handles.
// Inlined code from jni_PushLocalFrame()
JNIHandleBlock* prev_handles = thread->active_handles();
JNIHandleBlock* entry_handles = JNIHandleBlock::allocate_block(thread);
assert(entry_handles != NULL && prev_handles != NULL, "should not be NULL");
entry_handles->set_pop_frame_link(prev_handles); // make sure prev handles get gc'd.
thread->set_active_handles(entry_handles);
}
// ------------------------------------------------------------------
// pop_jni_handle_block
//
// Pop off the current block of JNI handles.
static void pop_jni_handle_block(Thread* const thread) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(thread));
// Release our JNI handle block
JNIHandleBlock* entry_handles = thread->active_handles();
JNIHandleBlock* prev_handles = entry_handles->pop_frame_link();
// restore
thread->set_active_handles(prev_handles);
entry_handles->set_pop_frame_link(NULL);
JNIHandleBlock::release_block(entry_handles, thread); // may block
}
class JNIHandleBlockManager : public StackObj {
private:
Thread* const _thread;
public:
JNIHandleBlockManager(Thread* thread) : _thread(thread) {
push_jni_handle_block(_thread);
}
~JNIHandleBlockManager() {
pop_jni_handle_block(_thread);
}
};
static bool is_module_available(outputStream* output, TRAPS) {
return JfrJavaSupport::is_jdk_jfr_module_available(output, THREAD);
}
static bool is_disabled(outputStream* output) {
if (Jfr::is_disabled()) {
if (output != NULL) {
output->print_cr("Flight Recorder is disabled.\n");
}
return true;
}
return false;
}
static bool is_recorder_instance_created(outputStream* output) {
if (!JfrRecorder::is_created()) {
if (output != NULL) {
output->print_cr("No available recordings.\n");
output->print_cr("Use JFR.start to start a recording.\n");
}
return false;
}
return true;
}
static bool invalid_state(outputStream* out, TRAPS) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
return is_disabled(out) || !is_module_available(out, THREAD);
}
static void print_pending_exception(outputStream* output, oop throwable) {
assert(throwable != NULL, "invariant");
oop msg = java_lang_Throwable::message(throwable);
if (msg != NULL) {
char* text = java_lang_String::as_utf8_string(msg);
output->print_raw_cr(text);
}
}
static void print_message(outputStream* output, const char* message) {
if (message != NULL) {
output->print_raw(message);
}
}
static void handle_dcmd_result(outputStream* output,
const oop result,
const DCmdSource source,
TRAPS) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
assert(output != NULL, "invariant");
if (HAS_PENDING_EXCEPTION) {
print_pending_exception(output, PENDING_EXCEPTION);
// Don't clear excption on startup, JVM should fail initialization.
if (DCmd_Source_Internal != source) {
CLEAR_PENDING_EXCEPTION;
}
return;
}
assert(!HAS_PENDING_EXCEPTION, "invariant");
if (result != NULL) {
const char* result_chars = java_lang_String::as_utf8_string(result);
print_message(output, result_chars);
}
}
static oop construct_dcmd_instance(JfrJavaArguments* args, TRAPS) {
assert(args != NULL, "invariant");
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
assert(args->klass() != NULL, "invariant");
args->set_name("<init>");
args->set_signature("()V");
JfrJavaSupport::new_object(args, CHECK_NULL);
return (oop)args->result()->get_jobject();
}
JfrDumpFlightRecordingDCmd::JfrDumpFlightRecordingDCmd(outputStream* output,
bool heap) : DCmdWithParser(output, heap),
_name("name", "Recording name, e.g. \\\"My Recording\\\"", "STRING", false, NULL),
_filename("filename", "Copy recording data to file, e.g. \\\"" JFR_FILENAME_EXAMPLE "\\\"", "STRING", false),
_maxage("maxage", "Maximum duration to dump, in (s)econds, (m)inutes, (h)ours, or (d)ays, e.g. 60m, or 0 for no limit", "NANOTIME", false, "0"),
_maxsize("maxsize", "Maximum amount of bytes to dump, in (M)B or (G)B, e.g. 500M, or 0 for no limit", "MEMORY SIZE", false, "0"),
_begin("begin", "Point in time to dump data from, e.g. 09:00, 21:35:00, 2018-06-03T18:12:56.827Z, 2018-06-03T20:13:46.832, -10m, -3h, or -1d", "STRING", false),
_end("end", "Point in time to dump data to, e.g. 09:00, 21:35:00, 2018-06-03T18:12:56.827Z, 2018-06-03T20:13:46.832, -10m, -3h, or -1d", "STRING", false),
_path_to_gc_roots("path-to-gc-roots", "Collect path to GC roots", "BOOLEAN", false, "false") {
_dcmdparser.add_dcmd_option(&_name);
_dcmdparser.add_dcmd_option(&_filename);
_dcmdparser.add_dcmd_option(&_maxage);
_dcmdparser.add_dcmd_option(&_maxsize);
_dcmdparser.add_dcmd_option(&_begin);
_dcmdparser.add_dcmd_option(&_end);
_dcmdparser.add_dcmd_option(&_path_to_gc_roots);
};
int JfrDumpFlightRecordingDCmd::num_arguments() {
ResourceMark rm;
JfrDumpFlightRecordingDCmd* dcmd = new JfrDumpFlightRecordingDCmd(NULL, false);
if (dcmd != NULL) {
DCmdMark mark(dcmd);
return dcmd->_dcmdparser.num_arguments();
}
return 0;
}
void JfrDumpFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
if (invalid_state(output(), THREAD) || !is_recorder_instance_created(output())) {
return;
}
ResourceMark rm(THREAD);
HandleMark hm(THREAD);
JNIHandleBlockManager jni_handle_management(THREAD);
JavaValue result(T_OBJECT);
JfrJavaArguments constructor_args(&result);
constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdDump", CHECK);
const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
Handle h_dcmd_instance(THREAD, dcmd);
assert(h_dcmd_instance.not_null(), "invariant");
jstring name = NULL;
if (_name.is_set() && _name.value() != NULL) {
name = JfrJavaSupport::new_string(_name.value(), CHECK);
}
jstring filepath = NULL;
if (_filename.is_set() && _filename.value() != NULL) {
filepath = JfrJavaSupport::new_string(_filename.value(), CHECK);
}
jobject maxage = NULL;
if (_maxage.is_set()) {
maxage = JfrJavaSupport::new_java_lang_Long(_maxage.value()._nanotime, CHECK);
}
jobject maxsize = NULL;
if (_maxsize.is_set()) {
maxsize = JfrJavaSupport::new_java_lang_Long(_maxsize.value()._size, CHECK);
}
jstring begin = NULL;
if (_begin.is_set() && _begin.value() != NULL) {
begin = JfrJavaSupport::new_string(_begin.value(), CHECK);
}
jstring end = NULL;
if (_end.is_set() && _end.value() != NULL) {
end = JfrJavaSupport::new_string(_end.value(), CHECK);
}
jobject path_to_gc_roots = NULL;
if (_path_to_gc_roots.is_set()) {
path_to_gc_roots = JfrJavaSupport::new_java_lang_Boolean(_path_to_gc_roots.value(), CHECK);
}
static const char klass[] = "jdk/jfr/internal/dcmd/DCmdDump";
static const char method[] = "execute";
static const char signature[] = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Long;Ljava/lang/Long;Ljava/lang/String;Ljava/lang/String;Ljava/lang/Boolean;)Ljava/lang/String;";
JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
execute_args.set_receiver(h_dcmd_instance);
// arguments
execute_args.push_jobject(name);
execute_args.push_jobject(filepath);
execute_args.push_jobject(maxage);
execute_args.push_jobject(maxsize);
execute_args.push_jobject(begin);
execute_args.push_jobject(end);
execute_args.push_jobject(path_to_gc_roots);
JfrJavaSupport::call_virtual(&execute_args, THREAD);
handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
}
JfrCheckFlightRecordingDCmd::JfrCheckFlightRecordingDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
_name("name","Recording name, e.g. \\\"My Recording\\\" or omit to see all recordings","STRING",false, NULL),
_verbose("verbose","Print event settings for the recording(s)","BOOLEAN",
false, "false") {
_dcmdparser.add_dcmd_option(&_name);
_dcmdparser.add_dcmd_option(&_verbose);
};
int JfrCheckFlightRecordingDCmd::num_arguments() {
ResourceMark rm;
JfrCheckFlightRecordingDCmd* dcmd = new JfrCheckFlightRecordingDCmd(NULL, false);
if (dcmd != NULL) {
DCmdMark mark(dcmd);
return dcmd->_dcmdparser.num_arguments();
}
return 0;
}
void JfrCheckFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
if (invalid_state(output(), THREAD) || !is_recorder_instance_created(output())) {
return;
}
ResourceMark rm(THREAD);
HandleMark hm(THREAD);
JNIHandleBlockManager jni_handle_management(THREAD);
JavaValue result(T_OBJECT);
JfrJavaArguments constructor_args(&result);
constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdCheck", CHECK);
const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
Handle h_dcmd_instance(THREAD, dcmd);
assert(h_dcmd_instance.not_null(), "invariant");
jstring name = NULL;
if (_name.is_set() && _name.value() != NULL) {
name = JfrJavaSupport::new_string(_name.value(), CHECK);
}
jobject verbose = NULL;
if (_verbose.is_set()) {
verbose = JfrJavaSupport::new_java_lang_Boolean(_verbose.value(), CHECK);
}
static const char klass[] = "jdk/jfr/internal/dcmd/DCmdCheck";
static const char method[] = "execute";
static const char signature[] = "(Ljava/lang/String;Ljava/lang/Boolean;)Ljava/lang/String;";
JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
execute_args.set_receiver(h_dcmd_instance);
// arguments
execute_args.push_jobject(name);
execute_args.push_jobject(verbose);
JfrJavaSupport::call_virtual(&execute_args, THREAD);
handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
}
JfrStartFlightRecordingDCmd::JfrStartFlightRecordingDCmd(outputStream* output,
bool heap) : DCmdWithParser(output, heap),
_name("name", "Name that can be used to identify recording, e.g. \\\"My Recording\\\"", "STRING", false, NULL),
_settings("settings", "Settings file(s), e.g. profile or default. See JRE_HOME/lib/jfr", "STRING SET", false),
_delay("delay", "Delay recording start with (s)econds, (m)inutes), (h)ours), or (d)ays, e.g. 5h.", "NANOTIME", false, "0"),
_duration("duration", "Duration of recording in (s)econds, (m)inutes, (h)ours, or (d)ays, e.g. 300s.", "NANOTIME", false, "0"),
_disk("disk", "Recording should be persisted to disk", "BOOLEAN", false),
_filename("filename", "Resulting recording filename, e.g. \\\"" JFR_FILENAME_EXAMPLE "\\\"", "STRING", false),
_maxage("maxage", "Maximum time to keep recorded data (on disk) in (s)econds, (m)inutes, (h)ours, or (d)ays, e.g. 60m, or 0 for no limit", "NANOTIME", false, "0"),
_maxsize("maxsize", "Maximum amount of bytes to keep (on disk) in (k)B, (M)B or (G)B, e.g. 500M, or 0 for no limit", "MEMORY SIZE", false, "0"),
_flush_interval("flush-interval", "Minimum time before flushing buffers, measured in (s)econds, e.g. 4 s, or 0 for flushing when a recording ends", "NANOTIME", false, "1s"),
_dump_on_exit("dumponexit", "Dump running recording when JVM shuts down", "BOOLEAN", false),
_path_to_gc_roots("path-to-gc-roots", "Collect path to GC roots", "BOOLEAN", false, "false") {
_dcmdparser.add_dcmd_option(&_name);
_dcmdparser.add_dcmd_option(&_settings);
_dcmdparser.add_dcmd_option(&_delay);
_dcmdparser.add_dcmd_option(&_duration);
_dcmdparser.add_dcmd_option(&_disk);
_dcmdparser.add_dcmd_option(&_filename);
_dcmdparser.add_dcmd_option(&_maxage);
_dcmdparser.add_dcmd_option(&_maxsize);
_dcmdparser.add_dcmd_option(&_flush_interval);
_dcmdparser.add_dcmd_option(&_dump_on_exit);
_dcmdparser.add_dcmd_option(&_path_to_gc_roots);
};
int JfrStartFlightRecordingDCmd::num_arguments() {
ResourceMark rm;
JfrStartFlightRecordingDCmd* dcmd = new JfrStartFlightRecordingDCmd(NULL, false);
if (dcmd != NULL) {
DCmdMark mark(dcmd);
return dcmd->_dcmdparser.num_arguments();
}
return 0;
}
void JfrStartFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
if (invalid_state(output(), THREAD)) {
return;
}
ResourceMark rm(THREAD);
HandleMark hm(THREAD);
JNIHandleBlockManager jni_handle_management(THREAD);
JavaValue result(T_OBJECT);
JfrJavaArguments constructor_args(&result);
constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdStart", THREAD);
const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
Handle h_dcmd_instance(THREAD, dcmd);
assert(h_dcmd_instance.not_null(), "invariant");
jstring name = NULL;
if (_name.is_set() && _name.value() != NULL) {
name = JfrJavaSupport::new_string(_name.value(), CHECK);
}
jstring filename = NULL;
if (_filename.is_set() && _filename.value() != NULL) {
filename = JfrJavaSupport::new_string(_filename.value(), CHECK);
}
jobject maxage = NULL;
if (_maxage.is_set()) {
maxage = JfrJavaSupport::new_java_lang_Long(_maxage.value()._nanotime, CHECK);
}
jobject maxsize = NULL;
if (_maxsize.is_set()) {
maxsize = JfrJavaSupport::new_java_lang_Long(_maxsize.value()._size, CHECK);
}
jobject flush_interval = NULL;
if (_flush_interval.is_set()) {
flush_interval = JfrJavaSupport::new_java_lang_Long(_flush_interval.value()._nanotime, CHECK);
}
jobject duration = NULL;
if (_duration.is_set()) {
duration = JfrJavaSupport::new_java_lang_Long(_duration.value()._nanotime, CHECK);
}
jobject delay = NULL;
if (_delay.is_set()) {
delay = JfrJavaSupport::new_java_lang_Long(_delay.value()._nanotime, CHECK);
}
jobject disk = NULL;
if (_disk.is_set()) {
disk = JfrJavaSupport::new_java_lang_Boolean(_disk.value(), CHECK);
}
jobject dump_on_exit = NULL;
if (_dump_on_exit.is_set()) {
dump_on_exit = JfrJavaSupport::new_java_lang_Boolean(_dump_on_exit.value(), CHECK);
}
jobject path_to_gc_roots = NULL;
if (_path_to_gc_roots.is_set()) {
path_to_gc_roots = JfrJavaSupport::new_java_lang_Boolean(_path_to_gc_roots.value(), CHECK);
}
jobjectArray settings = NULL;
if (_settings.is_set()) {
int length = _settings.value()->array()->length();
if (length == 1) {
const char* c_str = _settings.value()->array()->at(0);
if (strcmp(c_str, "none") == 0) {
length = 0;
}
}
settings = JfrJavaSupport::new_string_array(length, CHECK);
assert(settings != NULL, "invariant");
for (int i = 0; i < length; ++i) {
jobject element = JfrJavaSupport::new_string(_settings.value()->array()->at(i), CHECK);
assert(element != NULL, "invariant");
JfrJavaSupport::set_array_element(settings, element, i, CHECK);
}
} else {
settings = JfrJavaSupport::new_string_array(1, CHECK);
assert(settings != NULL, "invariant");
jobject element = JfrJavaSupport::new_string("default", CHECK);
assert(element != NULL, "invariant");
JfrJavaSupport::set_array_element(settings, element, 0, CHECK);
}
static const char klass[] = "jdk/jfr/internal/dcmd/DCmdStart";
static const char method[] = "execute";
static const char signature[] = "(Ljava/lang/String;[Ljava/lang/String;Ljava/lang/Long;"
"Ljava/lang/Long;Ljava/lang/Boolean;Ljava/lang/String;"
"Ljava/lang/Long;Ljava/lang/Long;Ljava/lang/Long;Ljava/lang/Boolean;Ljava/lang/Boolean;)Ljava/lang/String;";
JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
execute_args.set_receiver(h_dcmd_instance);
// arguments
execute_args.push_jobject(name);
execute_args.push_jobject(settings);
execute_args.push_jobject(delay);
execute_args.push_jobject(duration);
execute_args.push_jobject(disk);
execute_args.push_jobject(filename);
execute_args.push_jobject(maxage);
execute_args.push_jobject(maxsize);
execute_args.push_jobject(flush_interval);
execute_args.push_jobject(dump_on_exit);
execute_args.push_jobject(path_to_gc_roots);
JfrJavaSupport::call_virtual(&execute_args, THREAD);
handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
}
JfrStopFlightRecordingDCmd::JfrStopFlightRecordingDCmd(outputStream* output,
bool heap) : DCmdWithParser(output, heap),
_name("name", "Recording text,.e.g \\\"My Recording\\\"", "STRING", true, NULL),
_filename("filename", "Copy recording data to file, e.g. \\\"" JFR_FILENAME_EXAMPLE "\\\"", "STRING", false, NULL) {
_dcmdparser.add_dcmd_option(&_name);
_dcmdparser.add_dcmd_option(&_filename);
};
int JfrStopFlightRecordingDCmd::num_arguments() {
ResourceMark rm;
JfrStopFlightRecordingDCmd* dcmd = new JfrStopFlightRecordingDCmd(NULL, false);
if (dcmd != NULL) {
DCmdMark mark(dcmd);
return dcmd->_dcmdparser.num_arguments();
}
return 0;
}
void JfrStopFlightRecordingDCmd::execute(DCmdSource source, TRAPS) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
if (invalid_state(output(), THREAD) || !is_recorder_instance_created(output())) {
return;
}
ResourceMark rm(THREAD);
HandleMark hm(THREAD);
JNIHandleBlockManager jni_handle_management(THREAD);
JavaValue result(T_OBJECT);
JfrJavaArguments constructor_args(&result);
constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdStop", CHECK);
const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
Handle h_dcmd_instance(THREAD, dcmd);
assert(h_dcmd_instance.not_null(), "invariant");
jstring name = NULL;
if (_name.is_set() && _name.value() != NULL) {
name = JfrJavaSupport::new_string(_name.value(), CHECK);
}
jstring filepath = NULL;
if (_filename.is_set() && _filename.value() != NULL) {
filepath = JfrJavaSupport::new_string(_filename.value(), CHECK);
}
static const char klass[] = "jdk/jfr/internal/dcmd/DCmdStop";
static const char method[] = "execute";
static const char signature[] = "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";
JfrJavaArguments execute_args(&result, klass, method, signature, CHECK);
execute_args.set_receiver(h_dcmd_instance);
// arguments
execute_args.push_jobject(name);
execute_args.push_jobject(filepath);
JfrJavaSupport::call_virtual(&execute_args, THREAD);
handle_dcmd_result(output(), (oop)result.get_jobject(), source, THREAD);
}
JfrConfigureFlightRecorderDCmd::JfrConfigureFlightRecorderDCmd(outputStream* output,
bool heap) : DCmdWithParser(output, heap),
_repository_path("repositorypath", "Path to repository,.e.g \\\"My Repository\\\"", "STRING", false, NULL),
_dump_path("dumppath", "Path to dump,.e.g \\\"My Dump path\\\"", "STRING", false, NULL),
_stack_depth("stackdepth", "Stack Depth", "JULONG", false, "64"),
_global_buffer_count("globalbuffercount", "Number of global buffers,", "JULONG", false, "20"),
_global_buffer_size("globalbuffersize", "Size of a global buffers,", "MEMORY SIZE", false, "512k"),
_thread_buffer_size("thread_buffer_size", "Size of a thread buffer", "MEMORY SIZE", false, "8k"),
_memory_size("memorysize", "Overall memory size, ", "MEMORY SIZE", false, "10m"),
_max_chunk_size("maxchunksize", "Size of an individual disk chunk", "MEMORY SIZE", false, "12m"),
_sample_threads("samplethreads", "Activate Thread sampling", "BOOLEAN", false, "true") {
_dcmdparser.add_dcmd_option(&_repository_path);
_dcmdparser.add_dcmd_option(&_dump_path);
_dcmdparser.add_dcmd_option(&_stack_depth);
_dcmdparser.add_dcmd_option(&_global_buffer_count);
_dcmdparser.add_dcmd_option(&_global_buffer_size);
_dcmdparser.add_dcmd_option(&_thread_buffer_size);
_dcmdparser.add_dcmd_option(&_memory_size);
_dcmdparser.add_dcmd_option(&_max_chunk_size);
_dcmdparser.add_dcmd_option(&_sample_threads);
};
int JfrConfigureFlightRecorderDCmd::num_arguments() {
ResourceMark rm;
JfrConfigureFlightRecorderDCmd* dcmd = new JfrConfigureFlightRecorderDCmd(NULL, false);
if (dcmd != NULL) {
DCmdMark mark(dcmd);
return dcmd->_dcmdparser.num_arguments();
}
return 0;
}
void JfrConfigureFlightRecorderDCmd::execute(DCmdSource source, TRAPS) {
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
if (invalid_state(output(), THREAD)) {
return;
}
ResourceMark rm(THREAD);
HandleMark hm(THREAD);
JNIHandleBlockManager jni_handle_management(THREAD);
JavaValue result(T_OBJECT);
JfrJavaArguments constructor_args(&result);
constructor_args.set_klass("jdk/jfr/internal/dcmd/DCmdConfigure", CHECK);
const oop dcmd = construct_dcmd_instance(&constructor_args, CHECK);
Handle h_dcmd_instance(THREAD, dcmd);
assert(h_dcmd_instance.not_null(), "invariant");
jstring repository_path = NULL;
if (_repository_path.is_set() && _repository_path.value() != NULL) {
repository_path = JfrJavaSupport::new_string(_repository_path.value(), CHECK);
}
jstring dump_path = NULL;
if (_dump_path.is_set() && _dump_path.value() != NULL) {
dump_path = JfrJavaSupport::new_string(_dump_path.value(), CHECK);
}
jobject stack_depth = NULL;
if (_stack_depth.is_set()) {
stack_depth = JfrJavaSupport::new_java_lang_Integer((jint)_stack_depth.value(), CHECK);
}
jobject global_buffer_count = NULL;
if (_global_buffer_count.is_set()) {
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