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 /* ============================================================================= */
37 
38 static void JNICALL
callbackExtensionEvent(jvmtiEnv * jvmti,...)39 callbackExtensionEvent(jvmtiEnv* jvmti, ...) {
40     NSK_DISPLAY0("    event: callbackExtensionEvent\n");
41 }
42 
43 /** Check extension events. */
checkExtensions(jvmtiEnv * jvmti,const char phase[])44 static int checkExtensions(jvmtiEnv* jvmti, const char phase[]) {
45     int success = NSK_TRUE;
46     jint extCount = 0;
47     jvmtiExtensionEventInfo* extList = NULL;
48     int i;
49 
50     NSK_DISPLAY0("Get extension events list\n");
51     if (!NSK_JVMTI_VERIFY(jvmti->GetExtensionEvents(&extCount, &extList))) {
52         return NSK_FALSE;
53     }
54     NSK_DISPLAY1("  ... got count: %d\n", (int)extCount);
55     NSK_DISPLAY1("  ... got list:  0x%p\n", (void*)extList);
56 
57     if (extCount <= 0) {
58         NSK_DISPLAY1("# WARNING: No extension events implemented to check: %d\n", extCount);
59     } else {
60 
61         if (!NSK_VERIFY(extList != NULL))
62             return NSK_FALSE;
63 
64         NSK_DISPLAY1("Set/clear callback for each extension event: %d events\n", (int)extCount);
65         for (i = 0; i < extCount; i++) {
66             NSK_DISPLAY1("  event #%d:\n", i);
67             NSK_DISPLAY1("    event_index: %d\n", (int)extList[i].extension_event_index);
68             NSK_DISPLAY1("    id:          \"%s\"\n", nsk_null_string(extList[i].id));
69             NSK_DISPLAY1("    short_desc:  \"%s\"\n", nsk_null_string(extList[i].short_description));
70             NSK_DISPLAY1("    param_count: %d\n", (int)extList[i].param_count);
71 
72             NSK_DISPLAY1("    ... setting callback: 0x%p\n", (void*)callbackExtensionEvent);
73             if (!NSK_JVMTI_VERIFY(
74                     jvmti->SetExtensionEventCallback(extList[i].extension_event_index, callbackExtensionEvent))) {
75                 success = NSK_FALSE;
76             }
77             NSK_DISPLAY0("    ... done\n");
78 
79             NSK_DISPLAY1("    ... clearing callback: 0x%p\n", (void*)NULL);
80             if (!NSK_JVMTI_VERIFY(
81                     jvmti->SetExtensionEventCallback(extList[i].extension_event_index, NULL))) {
82                 success = NSK_FALSE;
83             }
84             NSK_DISPLAY0("    ... done\n");
85         }
86     }
87 
88     NSK_DISPLAY1("Deallocate extension events list: 0x%p\n", (void*)extList);
89     if (!NSK_JVMTI_VERIFY(jvmti->Deallocate((unsigned char*)extList))) {
90         return NSK_FALSE;
91     }
92     NSK_DISPLAY0("  ... deallocated\n");
93 
94     return success;
95 }
96 
97 /* ============================================================================= */
98 
99 /** Agent algorithm. */
100 static void JNICALL
agentProc(jvmtiEnv * jvmti,JNIEnv * jni,void * arg)101 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
102     NSK_DISPLAY0("Wait for debugee class ready\n");
103     if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout)))
104         return;
105 
106     NSK_DISPLAY0(">>> Testcase #2: Check setting extension event callbacks in live phase\n");
107     {
108         if (!checkExtensions(jvmti, "live")) {
109             nsk_jvmti_setFailStatus();
110         }
111     }
112 
113     NSK_DISPLAY0("Let debugee to finish\n");
114     if (!NSK_VERIFY(nsk_jvmti_resumeSync()))
115         return;
116 }
117 
118 /* ============================================================================= */
119 
120 /** Agent library initialization. */
121 #ifdef STATIC_BUILD
Agent_OnLoad_setextevent001(JavaVM * jvm,char * options,void * reserved)122 JNIEXPORT jint JNICALL Agent_OnLoad_setextevent001(JavaVM *jvm, char *options, void *reserved) {
123     return Agent_Initialize(jvm, options, reserved);
124 }
Agent_OnAttach_setextevent001(JavaVM * jvm,char * options,void * reserved)125 JNIEXPORT jint JNICALL Agent_OnAttach_setextevent001(JavaVM *jvm, char *options, void *reserved) {
126     return Agent_Initialize(jvm, options, reserved);
127 }
JNI_OnLoad_setextevent001(JavaVM * jvm,char * options,void * reserved)128 JNIEXPORT jint JNI_OnLoad_setextevent001(JavaVM *jvm, char *options, void *reserved) {
129     return JNI_VERSION_1_8;
130 }
131 #endif
Agent_Initialize(JavaVM * jvm,char * options,void * reserved)132 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
133     jvmtiEnv* jvmti = NULL;
134 
135     if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
136         return JNI_ERR;
137 
138     timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
139 
140     if (!NSK_VERIFY((jvmti =
141             nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
142         return JNI_ERR;
143 
144     NSK_DISPLAY0(">>> Testcase #1: Check setting extension event callbacks in OnLoad phase\n");
145     {
146         if (!checkExtensions(jvmti, "OnLoad")) {
147             nsk_jvmti_setFailStatus();
148         }
149     }
150 
151     if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
152         return JNI_ERR;
153 
154     return JNI_OK;
155 }
156 
157 /* ============================================================================= */
158 
159 }
160