925 // thread - NOT pre-checked
926 // info_ptr - pre-checked for NULL
927 jvmtiError
928 JvmtiEnv::GetThreadInfo(jthread thread, jvmtiThreadInfo* info_ptr) {
929 ResourceMark rm;
930 HandleMark hm;
931
932 JavaThread* current_thread = JavaThread::current();
933
934 // if thread is NULL the current thread is used
935 oop thread_oop;
936 if (thread == NULL) {
937 thread_oop = current_thread->threadObj();
938 } else {
939 thread_oop = JNIHandles::resolve_external_guard(thread);
940 }
941 if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass()))
942 return JVMTI_ERROR_INVALID_THREAD;
943
944 Handle thread_obj(current_thread, thread_oop);
945 typeArrayHandle name;
946 ThreadPriority priority;
947 Handle thread_group;
948 Handle context_class_loader;
949 bool is_daemon;
950
951 { MutexLocker mu(Threads_lock);
952
953 name = typeArrayHandle(current_thread, java_lang_Thread::name(thread_obj()));
954 priority = java_lang_Thread::priority(thread_obj());
955 thread_group = Handle(current_thread, java_lang_Thread::threadGroup(thread_obj()));
956 is_daemon = java_lang_Thread::is_daemon(thread_obj());
957
958 oop loader = java_lang_Thread::context_class_loader(thread_obj());
959 context_class_loader = Handle(current_thread, loader);
960 }
961 { const char *n;
962
963 if (name() != NULL) {
964 n = UNICODE::as_utf8((jchar*) name->base(T_CHAR), name->length());
965 } else {
966 n = UNICODE::as_utf8(NULL, 0);
967 }
968
969 info_ptr->name = (char *) jvmtiMalloc(strlen(n)+1);
970 if (info_ptr->name == NULL)
971 return JVMTI_ERROR_OUT_OF_MEMORY;
972
973 strcpy(info_ptr->name, n);
974 }
975 info_ptr->is_daemon = is_daemon;
976 info_ptr->priority = priority;
977
978 info_ptr->context_class_loader = (context_class_loader.is_null()) ? NULL :
979 jni_reference(context_class_loader);
980 info_ptr->thread_group = jni_reference(thread_group);
981
982 return JVMTI_ERROR_NONE;
983 } /* end GetThreadInfo */
984
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925 // thread - NOT pre-checked
926 // info_ptr - pre-checked for NULL
927 jvmtiError
928 JvmtiEnv::GetThreadInfo(jthread thread, jvmtiThreadInfo* info_ptr) {
929 ResourceMark rm;
930 HandleMark hm;
931
932 JavaThread* current_thread = JavaThread::current();
933
934 // if thread is NULL the current thread is used
935 oop thread_oop;
936 if (thread == NULL) {
937 thread_oop = current_thread->threadObj();
938 } else {
939 thread_oop = JNIHandles::resolve_external_guard(thread);
940 }
941 if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass()))
942 return JVMTI_ERROR_INVALID_THREAD;
943
944 Handle thread_obj(current_thread, thread_oop);
945 Handle name;
946 ThreadPriority priority;
947 Handle thread_group;
948 Handle context_class_loader;
949 bool is_daemon;
950
951 { MutexLocker mu(Threads_lock);
952
953 name = Handle(current_thread, java_lang_Thread::name(thread_obj()));
954 priority = java_lang_Thread::priority(thread_obj());
955 thread_group = Handle(current_thread, java_lang_Thread::threadGroup(thread_obj()));
956 is_daemon = java_lang_Thread::is_daemon(thread_obj());
957
958 oop loader = java_lang_Thread::context_class_loader(thread_obj());
959 context_class_loader = Handle(current_thread, loader);
960 }
961 { const char *n;
962
963 if (name() != NULL) {
964 n = java_lang_String::as_utf8_string(name());
965 } else {
966 n = UNICODE::as_utf8(NULL, 0);
967 }
968
969 info_ptr->name = (char *) jvmtiMalloc(strlen(n)+1);
970 if (info_ptr->name == NULL)
971 return JVMTI_ERROR_OUT_OF_MEMORY;
972
973 strcpy(info_ptr->name, n);
974 }
975 info_ptr->is_daemon = is_daemon;
976 info_ptr->priority = priority;
977
978 info_ptr->context_class_loader = (context_class_loader.is_null()) ? NULL :
979 jni_reference(context_class_loader);
980 info_ptr->thread_group = jni_reference(thread_group);
981
982 return JVMTI_ERROR_NONE;
983 } /* end GetThreadInfo */
984
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