| /* |
| * 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 int *user_data = 0; |
| static const char debugeeClassSignature[] = "Lnsk/jvmti/IterateOverInstancesOfClass/iterinstcls007;"; |
| static jlong nanos = 0; |
| static jvmtiTimerInfo timer_info1, timer_info2; |
| |
| /* ============================================================================= */ |
| |
| 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; |
| |
| do { |
| NSK_DISPLAY0("Calling IterateOverInstancesOfClass with filter JVMTI_HEAP_OBJECT_EITHER\n"); |
| { |
| jclass debugeeClass = NULL; |
| |
| NSK_DISPLAY1("Find debugee class: %s\n", debugeeClassSignature); |
| debugeeClass = nsk_jvmti_classBySignature(debugeeClassSignature); |
| if (debugeeClass == NULL) { |
| nsk_jvmti_setFailStatus(); |
| break; |
| } |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB5(IterateOverInstancesOfClass, |
| jvmti, |
| debugeeClass, |
| JVMTI_HEAP_OBJECT_EITHER, |
| heapObjectCallback, |
| (void *)user_data))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| } while (0); |
| |
| 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_iterinstcls007(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_iterinstcls007(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_iterinstcls007(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 |