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/*
* Copyright (c) 2003, 2024, 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.
*
* 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 <string.h>
#include "jvmti.h"
#include "agent_common.hpp"
#include "jni_tools.hpp"
#include "jvmti_tools.hpp"
extern "C" {
/* ============================================================================= */
/* scaffold objects */
static jlong timeout = 0;
/* constants */
#define EVENTS_COUNT 3
/* tested events */
static jvmtiEvent eventsList[EVENTS_COUNT] = {
JVMTI_EVENT_VM_INIT,
JVMTI_EVENT_THREAD_START,
JVMTI_EVENT_THREAD_END
};
static const char* eventsNameList[EVENTS_COUNT] = {
"JVMTI_EVENT_VM_INIT",
"JVMTI_EVENT_THREAD_START",
"JVMTI_EVENT_THREAD_END"
};
static int eventsCountList[EVENTS_COUNT];
/* ============================================================================= */
/** Clear events counters. */
static void cleanEventCounts() {
int i;
for (i = 0; i < EVENTS_COUNT; i++) {
eventsCountList[i] = 0;
}
}
/** Check if all expected events received. */
static int checkEventCounts() {
int success = NSK_TRUE;
int i;
NSK_DISPLAY0("Callbacks invoked:\n");
for (i = 0; i < EVENTS_COUNT; i++) {
NSK_DISPLAY2(" %s: %d times\n",
eventsNameList[i], eventsCountList[i]);
}
for (i = 0; i < EVENTS_COUNT; i++) {
if (eventsCountList[i] <= 0) {
NSK_COMPLAIN2("# No %s event callback invoked:\n"
"# invoked: %d times\n",
eventsNameList[i], eventsCountList[i]);
success = NSK_FALSE;
}
}
return success;
}
/* ============================================================================= */
/** Agent algorithm. */
static void JNICALL
agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
NSK_DISPLAY0("Wait for debugee to generate events\n");
if (!nsk_jvmti_waitForSync(timeout))
return;
NSK_DISPLAY0(">>> Testcase #3: Check if all events callbacks were invoked\n");
if (!checkEventCounts()) {
nsk_jvmti_setFailStatus();
}
NSK_DISPLAY0("Disable events\n");
nsk_jvmti_enableEvents(JVMTI_DISABLE, EVENTS_COUNT, eventsList, nullptr);
NSK_DISPLAY0("Let debugee to finish\n");
if (!nsk_jvmti_resumeSync())
return;
}
/* ============================================================================= */
/**
* Callback for THREAD_START event.
*/
JNIEXPORT void JNICALL
callbackThreadStart(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread) {
NSK_DISPLAY1(" <THREAD_START>: thread: 0x%p\n", (void*)thread);
eventsCountList[1]++;
}
/**
* Callback for THREAD_END event.
*/
JNIEXPORT void JNICALL
callbackThreadEnd(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread) {
NSK_DISPLAY1(" <THREAD_END>: thread: 0x%p\n", (void*)thread);
eventsCountList[2]++;
}
/**
* Callback for VM_INIT event.
*/
JNIEXPORT void JNICALL
callbackVMInit(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread) {
NSK_DISPLAY1(" <VM_INIT>: thread: 0x%p\n", (void*)thread);
eventsCountList[0]++;
NSK_DISPLAY0(">>> Testcase #2: Set callbacks for THREAD_START and THREAD_END events\n");
{
jvmtiEventCallbacks eventCallbacks;
memset(&eventCallbacks, 0, sizeof(eventCallbacks));
eventCallbacks.ThreadStart = callbackThreadStart;
eventCallbacks.ThreadEnd = callbackThreadEnd;
if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&eventCallbacks, sizeof(eventCallbacks)))) {
nsk_jvmti_setFailStatus();
} else {
nsk_jvmti_enableEvents(JVMTI_ENABLE, EVENTS_COUNT - 1, eventsList + 1, nullptr);
}
}
}
/* ============================================================================= */
/** Agent library initialization. */
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_setevntcallb001(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_setevntcallb001(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_setevntcallb001(JavaVM *jvm, char *options, void *reserved) {
return JNI_VERSION_1_8;
}
#endif
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
jvmtiEnv* jvmti = nullptr;
if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
return JNI_ERR;
timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
if (!NSK_VERIFY((jvmti =
nsk_jvmti_createJVMTIEnv(jvm, reserved)) != nullptr))
return JNI_ERR;
if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, nullptr)))
return JNI_ERR;
NSK_DISPLAY0(">>> Testcase #1: Set callbacks for VM_INIT event\n");
{
jvmtiEventCallbacks eventCallbacks;
cleanEventCounts();
memset(&eventCallbacks, 0, sizeof(eventCallbacks));
eventCallbacks.VMInit = callbackVMInit;
if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&eventCallbacks, sizeof(eventCallbacks)))) {
nsk_jvmti_setFailStatus();
} else {
nsk_jvmti_enableEvents(JVMTI_ENABLE, 1, eventsList, nullptr);
}
}
return JNI_OK;
}
/* ============================================================================= */
}
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