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/*
* Copyright (c) 2004, 2018, 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.h"
#include "jni_tools.h"
#include "jvmti_tools.h"
#ifdef __cplusplus
extern "C" {
#endif
/* ============================================================================= */
static jlong timeout = 0;
static jvmtiEnv* st_jvmti = NULL;
static jlong nanos = 0;
static jvmtiTimerInfo timer_info1, timer_info2;
static int *user_data = 0;
/* ============================================================================= */
jvmtiIterationControl JNICALL
heapObjectCallback(jlong class_tag,
jlong size,
jlong* tag_ptr,
void* user_data) {
if (!NSK_JVMTI_VERIFY(
NSK_CPP_STUB2(GetCurrentThreadCpuTimerInfo, st_jvmti, &timer_info1 ))) {
nsk_jvmti_setFailStatus();
}
/* Check the returned jvmtiTimerInfo structure */
if (timer_info1.max_value == 0) {
NSK_COMPLAIN0("GetCurrentThreadCpuTimerInfo returned zero in jvmtiTimerInfo.max_value\n");
nsk_jvmti_setFailStatus();
}
if (timer_info1.may_skip_forward != JNI_TRUE && timer_info1.may_skip_forward != JNI_FALSE) {
NSK_COMPLAIN0("GetCurrentThreadCpuTimerInfo returned unknown type value in jvmtiTimerInfo.may_skip_forward\n");
nsk_jvmti_setFailStatus();
}
if (timer_info1.may_skip_backward != JNI_TRUE && timer_info1.may_skip_backward != JNI_FALSE) {
NSK_COMPLAIN0("GetCurrentThreadCpuTimerInfo returned unknown type value in jvmtiTimerInfo.may_skip_backward\n");
nsk_jvmti_setFailStatus();
}
/* ---------------------------------------------------------------------- */
if (!NSK_JVMTI_VERIFY(
NSK_CPP_STUB2(GetCurrentThreadCpuTime, st_jvmti, &nanos ))) {
nsk_jvmti_setFailStatus();
}
/* ---------------------------------------------------------------------- */
if (!NSK_JVMTI_VERIFY(
NSK_CPP_STUB2(GetTimerInfo, st_jvmti, &timer_info2 ))) {
nsk_jvmti_setFailStatus();
}
/* Check the returned jvmtiTimerInfo structure */
if (timer_info2.max_value == 0) {
NSK_COMPLAIN0("GetTimerInfo returned zero in jvmtiTimerInfo.max_value\n");
nsk_jvmti_setFailStatus();
}
if (timer_info2.may_skip_forward != JNI_TRUE && timer_info2.may_skip_forward != JNI_FALSE) {
NSK_COMPLAIN0("GetTimerInfo returned unknown type value in jvmtiTimerInfo.may_skip_forward\n");
nsk_jvmti_setFailStatus();
}
if (timer_info2.may_skip_backward != JNI_TRUE && timer_info2.may_skip_backward != JNI_FALSE) {
NSK_COMPLAIN0("GetTimerInfo returned unknown type value in jvmtiTimerInfo.may_skip_backward\n");
nsk_jvmti_setFailStatus();
}
/* ---------------------------------------------------------------------- */
nanos = 0;
if (!NSK_JVMTI_VERIFY(
NSK_CPP_STUB2(GetTime, st_jvmti, &nanos ))) {
nsk_jvmti_setFailStatus();
}
/* Iterate over only first object */
return JVMTI_ITERATION_ABORT;
}
/* ============================================================================= */
/** Agent algorithm. */
static void JNICALL
agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
NSK_DISPLAY0("Wait for debugee start\n");
if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout)))
return;
{
NSK_DISPLAY0("Calling IterateOverHeap with filter JVMTI_HEAP_OBJECT_EITHER\n");
{
if (!NSK_JVMTI_VERIFY(
NSK_CPP_STUB4(IterateOverHeap,
jvmti,
JVMTI_HEAP_OBJECT_EITHER,
heapObjectCallback,
(void *)user_data))) {
nsk_jvmti_setFailStatus();
}
}
}
NSK_DISPLAY0("Let debugee to finish\n");
if (!NSK_VERIFY(nsk_jvmti_resumeSync()))
return;
}
/* ============================================================================= */
/** Agent library initialization. */
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_iterheap007(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_iterheap007(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_iterheap007(JavaVM *jvm, char *options, void *reserved) {
return JNI_VERSION_1_8;
}
#endif
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
jvmtiEnv* jvmti = NULL;
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)) != NULL))
return JNI_ERR;
/* save pointer to environment to use it in callbacks */
st_jvmti = jvmti;
{
jvmtiCapabilities caps;
memset(&caps, 0, sizeof(caps));
caps.can_tag_objects = 1;
caps.can_get_current_thread_cpu_time = 1;
if (!NSK_JVMTI_VERIFY(
NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) {
return JNI_ERR;
}
}
if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
return JNI_ERR;
return JNI_OK;
}
/* ============================================================================= */
#ifdef __cplusplus
}
#endif
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