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 #define STEPS_COUNT 3
38
39 typedef struct PropertyDescStruct {
40 const char* name;
41 const char* values[STEPS_COUNT];
42 } PropertyDesc;
43
44 static PropertyDesc propDescList[PROPERTIES_COUNT] = {
45 {
46 "nsk.jvmti.test.property",
47 {
48 "initial value of nsk.jvmti.test.property",
49 "OnLoad phase value of nsk.jvmti.test.property",
50 "live phase value of nsk.jvmti.test.property"
51 }
52 },
53 {
54 "nsk.jvmti.test.property.empty.old",
55 {
56 "",
57 "OnLoad phase value of nsk.jvmti.test.property.empty.old",
58 ""
59 }
60 },
61 {
62 "nsk.jvmti.test.property.empty.new",
63 {
64 "initial value of nsk.jvmti.test.property.empty.new",
65 "",
66 "live phase value of nsk.jvmti.test.property.empty.new"
67 }
68 }
69 };
70
71 /* ============================================================================= */
72
73 static int checkPropertyValue(jvmtiEnv* jvmti, const char phase[],
74 const char name[], const char* expectedValue) {
75 int success = NSK_TRUE;
76 char* value = NULL;
77
78 NSK_DISPLAY1(" property: %s\n", name);
79 if (!NSK_JVMTI_VERIFY(jvmti->GetSystemProperty(name, &value))) {
80 return NSK_FALSE;
81 }
82 NSK_DISPLAY1(" value: \"%s\"\n", nsk_null_string(value));
83
84 if (value == NULL
85 || strcmp(value, expectedValue) != 0) {
86 NSK_COMPLAIN4("In %s phase GetSystemProperty() returned unexpected value for property:\n"
87 "# property name: %s\n"
88 "# got value: \"%s\"\n"
89 "# expected: \"%s\"\n",
90 phase, name,
91 nsk_null_string(value), expectedValue);
92 success = NSK_FALSE;
93 }
94
95 if (!NSK_JVMTI_VERIFY(jvmti->Deallocate((unsigned char*)value))) {
96 success = NSK_FALSE;
97 }
98
99 return success;
100 }
101
102 static int checkProperties(jvmtiEnv* jvmti, const char phase[], int step) {
103 int success = NSK_TRUE;
104 int i;
105
106 NSK_DISPLAY0("Check previously set values of tested properties\n");
107 for (i = 0; i < PROPERTIES_COUNT; i++) {
108 if (!checkPropertyValue(jvmti, phase,
109 propDescList[i].name, propDescList[i].values[step-1])) {
110 success = NSK_FALSE;
111 }
112 }
113
114 NSK_DISPLAY1("Set new values for tested properties %s\n",
115 (step > 1) ? "(negative)" : "");
116 for (i = 0; i < PROPERTIES_COUNT; i++) {
117 NSK_DISPLAY1(" property: %s\n", propDescList[i].name);
118 NSK_DISPLAY1(" value: \"%s\"\n", propDescList[i].values[step]);
119 if (step > 1) {
120 if (!NSK_JVMTI_VERIFY_CODE(JVMTI_ERROR_WRONG_PHASE,
121 jvmti->SetSystemProperty(propDescList[i].name, propDescList[i].values[step]))) {
122 success = NSK_FALSE;
123 }
124 } else {
125 if (!NSK_JVMTI_VERIFY(
126 jvmti->SetSystemProperty(propDescList[i].name, propDescList[i].values[step]))) {
127 success = NSK_FALSE;
128 }
129 }
130 }
131
132 NSK_DISPLAY0("Check newly set values of tested properties\n");
133 for (i = 0; i < PROPERTIES_COUNT; i++) {
134 if (!checkPropertyValue(jvmti, phase, propDescList[i].name,
135 propDescList[i].values[1])) {
136 success = NSK_FALSE;
137 }
138 }
139
140 return success;
141 }
142
143 /* ============================================================================= */
144
145 /** Agent algorithm. */
146 static void JNICALL
147 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
148 NSK_DISPLAY0("Wait for debugee to become ready\n");
149 if (!nsk_jvmti_waitForSync(timeout))
150 return;
151
152 NSK_DISPLAY0(">>> Check setting defined system properties in live phase\n");
153 if (!checkProperties(jvmti, "live", 2)) {
154 nsk_jvmti_setFailStatus();
155 }
156
157 NSK_DISPLAY0("Let debugee to finish\n");
158 if (!nsk_jvmti_resumeSync())
159 return;
160 }
161
162 /* ============================================================================= */
163
164 /** Agent library initialization. */
165 #ifdef STATIC_BUILD
166 JNIEXPORT jint JNICALL Agent_OnLoad_setsysprop002(JavaVM *jvm, char *options, void *reserved) {
167 return Agent_Initialize(jvm, options, reserved);
168 }
169 JNIEXPORT jint JNICALL Agent_OnAttach_setsysprop002(JavaVM *jvm, char *options, void *reserved) {
170 return Agent_Initialize(jvm, options, reserved);
171 }
172 JNIEXPORT jint JNI_OnLoad_setsysprop002(JavaVM *jvm, char *options, void *reserved) {
173 return JNI_VERSION_1_8;
174 }
175 #endif
176 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
177 jvmtiEnv* jvmti = NULL;
178
179 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
180 return JNI_ERR;
181
182 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
183
184 if (!NSK_VERIFY((jvmti =
185 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
186 return JNI_ERR;
187
188 NSK_DISPLAY0(">>> Check setting defined system properties in OnLoad phase\n");
189 if (!checkProperties(jvmti, "OnLoad", 1)) {
190 nsk_jvmti_setFailStatus();
191 }
192
193 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
194 return JNI_ERR;
195
196 return JNI_OK;
197 }
198
199 /* ============================================================================= */
200
201 }