1 /*
   2  * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #include <string.h>
  25 #include "jvmti.h"
  26 #include "agent_common.h"
  27 #include "jni_tools.h"
  28 #include "jvmti_tools.h"
  29 
  30 extern "C" {
  31 
  32 /* ============================================================================= */
  33 
  34 static jlong timeout = 0;
  35 
  36 #define PROPERTIES_COUNT  3
  37 
  38 typedef struct PropertyDescStruct {
  39     const char* name;
  40     const char* value;
  41 } PropertyDesc;
  42 
  43 static PropertyDesc propDescList[PROPERTIES_COUNT] = {
  44     {"nsk.jvmti.test.property", "new value of nsk.jvmti.test.property"},
  45     {"nsk.jvmti.test.property.empty.old", "new value of nsk.jvmti.test.property.emply.old"},
  46     {"nsk.jvmti.test.property.empty.new", ""}
  47 };
  48 
  49 /* ============================================================================= */
  50 
  51 static int setProperties(jvmtiEnv* jvmti) {
  52     int success = NSK_TRUE;
  53     int i;
  54 
  55     for (i = 0; i < PROPERTIES_COUNT; i++) {
  56         NSK_DISPLAY1("  property: %s\n", propDescList[i].name);
  57         NSK_DISPLAY1("     value: \"%s\"\n", propDescList[i].value);
  58         if (!NSK_JVMTI_VERIFY(
  59                 jvmti->SetSystemProperty(propDescList[i].name, propDescList[i].value))) {
  60             success = NSK_FALSE;
  61         }
  62     }
  63 
  64     return success;
  65 }
  66 
  67 /* ============================================================================= */
  68 
  69 /** Agent library initialization. */
  70 #ifdef STATIC_BUILD
  71 JNIEXPORT jint JNICALL Agent_OnLoad_setsysprop003(JavaVM *jvm, char *options, void *reserved) {
  72     return Agent_Initialize(jvm, options, reserved);
  73 }
  74 JNIEXPORT jint JNICALL Agent_OnAttach_setsysprop003(JavaVM *jvm, char *options, void *reserved) {
  75     return Agent_Initialize(jvm, options, reserved);
  76 }
  77 JNIEXPORT jint JNI_OnLoad_setsysprop003(JavaVM *jvm, char *options, void *reserved) {
  78     return JNI_VERSION_1_8;
  79 }
  80 #endif
  81 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
  82     jvmtiEnv* jvmti = NULL;
  83 
  84     if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
  85         return JNI_ERR;
  86 
  87     timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
  88 
  89     if (!NSK_VERIFY((jvmti =
  90             nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
  91         return JNI_ERR;
  92 
  93     NSK_DISPLAY0(">>> Set new values for defined system properties in OnLoad phase\n");
  94     if (!setProperties(jvmti)) {
  95         nsk_jvmti_setFailStatus();
  96         return JNI_ERR;
  97     }
  98 
  99     return JNI_OK;
 100 }
 101 
 102 /* ============================================================================= */
 103 
 104 }