2822 //
2823
2824 // hash_code_ptr - pre-checked for NULL
2825 jvmtiError
2826 JvmtiEnv::GetObjectHashCode(jobject object, jint* hash_code_ptr) {
2827 oop mirror = JNIHandles::resolve_external_guard(object);
2828 NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT);
2829 NULL_CHECK(hash_code_ptr, JVMTI_ERROR_NULL_POINTER);
2830
2831 {
2832 jint result = (jint) mirror->identity_hash();
2833 *hash_code_ptr = result;
2834 }
2835 return JVMTI_ERROR_NONE;
2836 } /* end GetObjectHashCode */
2837
2838
2839 // info_ptr - pre-checked for NULL
2840 jvmtiError
2841 JvmtiEnv::GetObjectMonitorUsage(jobject object, jvmtiMonitorUsage* info_ptr) {
2842 JavaThread* calling_thread = JavaThread::current();
2843 jvmtiError err = get_object_monitor_usage(calling_thread, object, info_ptr);
2844 if (err == JVMTI_ERROR_THREAD_NOT_SUSPENDED) {
2845 // Some of the critical threads were not suspended. go to a safepoint and try again
2846 VM_GetObjectMonitorUsage op(this, calling_thread, object, info_ptr);
2847 VMThread::execute(&op);
2848 err = op.result();
2849 }
2850 return err;
2851 } /* end GetObjectMonitorUsage */
2852
2853
2854 //
2855 // Field functions
2856 //
2857
2858 // name_ptr - NULL is a valid value, must be checked
2859 // signature_ptr - NULL is a valid value, must be checked
2860 // generic_ptr - NULL is a valid value, must be checked
2861 jvmtiError
2862 JvmtiEnv::GetFieldName(fieldDescriptor* fdesc_ptr, char** name_ptr, char** signature_ptr, char** generic_ptr) {
2863 JavaThread* current_thread = JavaThread::current();
2864 ResourceMark rm(current_thread);
2865 if (name_ptr == NULL) {
2866 // just don't return the name
2867 } else {
2868 const char* fieldName = fdesc_ptr->name()->as_C_string();
2869 *name_ptr = (char*) jvmtiMalloc(strlen(fieldName) + 1);
2870 if (*name_ptr == NULL)
|
2822 //
2823
2824 // hash_code_ptr - pre-checked for NULL
2825 jvmtiError
2826 JvmtiEnv::GetObjectHashCode(jobject object, jint* hash_code_ptr) {
2827 oop mirror = JNIHandles::resolve_external_guard(object);
2828 NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT);
2829 NULL_CHECK(hash_code_ptr, JVMTI_ERROR_NULL_POINTER);
2830
2831 {
2832 jint result = (jint) mirror->identity_hash();
2833 *hash_code_ptr = result;
2834 }
2835 return JVMTI_ERROR_NONE;
2836 } /* end GetObjectHashCode */
2837
2838
2839 // info_ptr - pre-checked for NULL
2840 jvmtiError
2841 JvmtiEnv::GetObjectMonitorUsage(jobject object, jvmtiMonitorUsage* info_ptr) {
2842 // This needs to be performed at a safepoint to gather stable data
2843 // because monitor owner / waiters might not be suspended.
2844 VM_GetObjectMonitorUsage op(this, JavaThread::current(), object, info_ptr);
2845 VMThread::execute(&op);
2846 return op.result();
2847 } /* end GetObjectMonitorUsage */
2848
2849
2850 //
2851 // Field functions
2852 //
2853
2854 // name_ptr - NULL is a valid value, must be checked
2855 // signature_ptr - NULL is a valid value, must be checked
2856 // generic_ptr - NULL is a valid value, must be checked
2857 jvmtiError
2858 JvmtiEnv::GetFieldName(fieldDescriptor* fdesc_ptr, char** name_ptr, char** signature_ptr, char** generic_ptr) {
2859 JavaThread* current_thread = JavaThread::current();
2860 ResourceMark rm(current_thread);
2861 if (name_ptr == NULL) {
2862 // just don't return the name
2863 } else {
2864 const char* fieldName = fdesc_ptr->name()->as_C_string();
2865 *name_ptr = (char*) jvmtiMalloc(strlen(fieldName) + 1);
2866 if (*name_ptr == NULL)
|