--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.management/share/native/libmanagement_ext/Flag.c Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,243 @@
+/*
+ * Copyright (c) 2003, 2015, 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <jni.h>
+#include "management_ext.h"
+#include "com_sun_management_internal_Flag.h"
+
+static jobject default_origin = NULL;
+static jobject vm_creation_origin = NULL;
+static jobject mgmt_origin = NULL;
+static jobject envvar_origin = NULL;
+static jobject config_file_origin = NULL;
+static jobject ergo_origin = NULL;
+static jobject attach_origin = NULL;
+static jobject other_origin = NULL;
+
+JNIEXPORT jint JNICALL
+Java_com_sun_management_internal_Flag_getInternalFlagCount
+ (JNIEnv *env, jclass cls)
+{
+ jlong count = jmm_interface->GetLongAttribute(env, NULL,
+ JMM_VM_GLOBAL_COUNT);
+ return (jint) count;
+}
+
+JNIEXPORT jobjectArray JNICALL
+ Java_com_sun_management_internal_Flag_getAllFlagNames
+(JNIEnv *env, jclass cls)
+{
+ return jmm_interface->GetVMGlobalNames(env);
+}
+
+static jobject find_origin_constant(JNIEnv* env, const char* enum_name) {
+ jvalue field;
+ field = JNU_GetStaticFieldByName(env,
+ NULL,
+ "com/sun/management/VMOption$Origin",
+ enum_name,
+ "Lcom/sun/management/VMOption$Origin;");
+ return (*env)->NewGlobalRef(env, field.l);
+}
+
+JNIEXPORT void JNICALL
+Java_com_sun_management_internal_Flag_initialize
+ (JNIEnv *env, jclass cls)
+{
+ default_origin = find_origin_constant(env, "DEFAULT");
+ vm_creation_origin = find_origin_constant(env, "VM_CREATION");
+ mgmt_origin = find_origin_constant(env, "MANAGEMENT");
+ envvar_origin = find_origin_constant(env, "ENVIRON_VAR");
+ config_file_origin = find_origin_constant(env, "CONFIG_FILE");
+ ergo_origin = find_origin_constant(env, "ERGONOMIC");
+ attach_origin = find_origin_constant(env, "ATTACH_ON_DEMAND");
+ other_origin = find_origin_constant(env, "OTHER");
+}
+
+JNIEXPORT jint JNICALL
+Java_com_sun_management_internal_Flag_getFlags
+ (JNIEnv *env, jclass cls, jobjectArray names, jobjectArray flags, jint count)
+{
+ jint num_flags, i, index;
+ jmmVMGlobal* globals;
+ size_t gsize;
+ const char* class_name = "com/sun/management/internal/Flag";
+ const char* signature = "(Ljava/lang/String;Ljava/lang/Object;ZZLcom/sun/management/VMOption$Origin;)V";
+ jobject origin;
+ jobject valueObj;
+ jobject flag;
+
+ if (flags == NULL) {
+ JNU_ThrowNullPointerException(env, 0);
+ return 0;
+ }
+
+ if (count <= 0) {
+ JNU_ThrowIllegalArgumentException(env, 0);
+ return 0;
+ }
+
+ gsize = (size_t)count * sizeof(jmmVMGlobal);
+ globals = (jmmVMGlobal*) malloc(gsize);
+ if (globals == NULL) {
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return 0;
+ }
+
+ memset(globals, 0, gsize);
+ num_flags = jmm_interface->GetVMGlobals(env, names, globals, count);
+ if (num_flags == 0) {
+ free(globals);
+ return 0;
+ }
+
+ index = 0;
+ for (i = 0; i < count; i++) {
+ if (globals[i].name == NULL) {
+ continue;
+ }
+ switch (globals[i].type) {
+ case JMM_VMGLOBAL_TYPE_JBOOLEAN:
+ valueObj = JNU_NewObjectByName(env, "java/lang/Boolean", "(Z)V",
+ globals[i].value.z);
+ break;
+ case JMM_VMGLOBAL_TYPE_JSTRING:
+ valueObj = globals[i].value.l;
+ break;
+ case JMM_VMGLOBAL_TYPE_JLONG:
+ valueObj = JNU_NewObjectByName(env, "java/lang/Long", "(J)V",
+ globals[i].value.j);
+ break;
+ case JMM_VMGLOBAL_TYPE_JDOUBLE:
+ valueObj = JNU_NewObjectByName(env, "java/lang/Double", "(D)V",
+ globals[i].value.d);
+ break;
+ default:
+ // ignore unsupported type
+ continue;
+ }
+
+ if (valueObj == NULL && globals[i].type != JMM_VMGLOBAL_TYPE_JSTRING) {
+ free(globals);
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return 0;
+ }
+
+ switch (globals[i].origin) {
+ case JMM_VMGLOBAL_ORIGIN_DEFAULT:
+ origin = default_origin;
+ break;
+ case JMM_VMGLOBAL_ORIGIN_COMMAND_LINE:
+ origin = vm_creation_origin;
+ break;
+ case JMM_VMGLOBAL_ORIGIN_MANAGEMENT:
+ origin = mgmt_origin;
+ break;
+ case JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR:
+ origin = envvar_origin;
+ break;
+ case JMM_VMGLOBAL_ORIGIN_CONFIG_FILE:
+ origin = config_file_origin;
+ break;
+ case JMM_VMGLOBAL_ORIGIN_ERGONOMIC:
+ origin = ergo_origin;
+ break;
+ case JMM_VMGLOBAL_ORIGIN_ATTACH_ON_DEMAND:
+ origin = attach_origin;
+ break;
+ case JMM_VMGLOBAL_ORIGIN_OTHER:
+ origin = other_origin;
+ break;
+ default:
+ // unknown origin
+ origin = other_origin;
+ break;
+ }
+ flag = JNU_NewObjectByName(env, class_name, signature, globals[i].name,
+ valueObj, globals[i].writeable,
+ globals[i].external, origin);
+ if (flag == NULL) {
+ free(globals);
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return 0;
+ }
+ (*env)->SetObjectArrayElement(env, flags, index, flag);
+ index++;
+ }
+
+ if (index != num_flags) {
+ JNU_ThrowInternalError(env, "Number of Flag objects created unmatched");
+ free(globals);
+ return 0;
+ }
+
+ free(globals);
+
+ /* return the number of Flag objects created */
+ return num_flags;
+}
+
+JNIEXPORT void JNICALL
+Java_com_sun_management_internal_Flag_setLongValue
+ (JNIEnv *env, jclass cls, jstring name, jlong value)
+{
+ jvalue v;
+ v.j = value;
+
+ jmm_interface->SetVMGlobal(env, name, v);
+}
+
+JNIEXPORT void JNICALL
+Java_com_sun_management_internal_Flag_setDoubleValue
+ (JNIEnv *env, jclass cls, jstring name, jdouble value)
+{
+ jvalue v;
+ v.d = value;
+
+ jmm_interface->SetVMGlobal(env, name, v);
+}
+
+JNIEXPORT void JNICALL
+Java_com_sun_management_internal_Flag_setBooleanValue
+ (JNIEnv *env, jclass cls, jstring name, jboolean value)
+{
+ jvalue v;
+ v.z = value;
+
+ jmm_interface->SetVMGlobal(env, name, v);
+}
+
+JNIEXPORT void JNICALL
+Java_com_sun_management_internal_Flag_setStringValue
+ (JNIEnv *env, jclass cls, jstring name, jstring value)
+{
+ jvalue v;
+ v.l = value;
+
+ jmm_interface->SetVMGlobal(env, name, v);
+}