| /* |
| * Copyright (c) 2003, 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 <stdio.h> |
| #include <string.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "JVMTITools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifndef JNI_ENV_ARG |
| |
| #ifdef __cplusplus |
| #define JNI_ENV_ARG(x,y) y |
| #define JNI_ENV_PTR(x) x |
| #else |
| #define JNI_ENV_ARG(x,y) x,y |
| #define JNI_ENV_PTR(x) (*x) |
| #endif |
| |
| #endif |
| |
| #define PASSED 0 |
| #define STATUS_FAILED 2 |
| |
| static jvmtiEnv *jvmti = NULL; |
| static jvmtiCapabilities caps; |
| static jint result = PASSED; |
| static jboolean printdump = JNI_FALSE; |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_objmonusage001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_objmonusage001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_objmonusage001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jint res; |
| jvmtiError err; |
| |
| if (options != NULL && strcmp(options, "printdump") == 0) { |
| printdump = JNI_TRUE; |
| } |
| |
| res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), |
| JVMTI_VERSION_1_1); |
| if (res != JNI_OK || jvmti == NULL) { |
| printf("Wrong result of a valid call to GetEnv !\n"); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->GetPotentialCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->AddCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(AddCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->GetCapabilities(jvmti, &caps); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("(GetCapabilities) unexpected error: %s (%d)\n", |
| TranslateError(err), err); |
| return JNI_ERR; |
| } |
| |
| if (!caps.can_get_monitor_info) { |
| printf("Warning: GetObjectMonitorUsage is not implemented\n"); |
| } |
| |
| return JNI_OK; |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_GetObjectMonitorUsage_objmonusage001_check(JNIEnv *env, |
| jclass cls, jint i, jobject obj, |
| jthread owner, jint entryCount, jint waiterCount) { |
| jvmtiError err; |
| jvmtiMonitorUsage inf; |
| jvmtiThreadInfo tinf; |
| int j; |
| |
| if (result == STATUS_FAILED) { |
| return; |
| } |
| |
| err = (*jvmti)->GetObjectMonitorUsage(jvmti, obj, &inf); |
| if (err == JVMTI_ERROR_MUST_POSSESS_CAPABILITY && |
| !caps.can_get_monitor_info) { |
| /* Ok, it's expected */ |
| return; |
| } else if (err != JVMTI_ERROR_NONE) { |
| printf("(GetMonitorInfo#%d) unexpected error: %s (%d)\n", |
| i, TranslateError(err), err); |
| result = STATUS_FAILED; |
| return; |
| } |
| |
| if (printdump == JNI_TRUE) { |
| if (inf.owner == NULL) { |
| printf(">>> [%2d] owner: none (0x0)\n", i); |
| } else { |
| (*jvmti)->GetThreadInfo(jvmti, inf.owner, &tinf); |
| printf(">>> [%2d] owner: %s (0x%p)\n", |
| i, tinf.name, inf.owner); |
| } |
| printf(">>> entry_count: %d\n", inf.entry_count); |
| printf(">>> waiter_count: %d\n", inf.waiter_count); |
| if (inf.waiter_count > 0) { |
| printf(">>> waiters:\n"); |
| for (j = 0; j < inf.waiter_count; j++) { |
| (*jvmti)->GetThreadInfo(jvmti, inf.waiters[j], &tinf); |
| printf(">>> %2d: %s (0x%p)\n", |
| j, tinf.name, inf.waiters[j]); |
| } |
| } |
| printf(">>> notify_waiter_count: %d\n", inf.notify_waiter_count); |
| if (inf.notify_waiter_count > 0) { |
| printf(">>> notify_waiters:\n"); |
| for (j = 0; j < inf.notify_waiter_count; j++) { |
| (*jvmti)->GetThreadInfo(jvmti, inf.notify_waiters[j], &tinf); |
| printf(">>> %2d: %s (0x%p)\n", |
| j, tinf.name, inf.notify_waiters[j]); |
| } |
| } |
| } |
| |
| if (JNI_ENV_PTR(env)->IsSameObject(JNI_ENV_ARG(env, owner), |
| inf.owner) != JNI_TRUE) { |
| (*jvmti)->GetThreadInfo(jvmti, inf.owner, &tinf); |
| printf("(%d) unexpected owner: %s (0x%p)\n", i, tinf.name, inf.owner); |
| result = STATUS_FAILED; |
| } |
| |
| if (inf.entry_count != entryCount) { |
| printf("(%d) entry_count expected: %d, actually: %d\n", |
| i, entryCount, inf.entry_count); |
| result = STATUS_FAILED; |
| } |
| |
| if (inf.waiter_count != waiterCount) { |
| printf("(%d) waiter_count expected: %d, actually: %d\n", |
| i, waiterCount, inf.waiter_count); |
| result = STATUS_FAILED; |
| } |
| } |
| |
| JNIEXPORT jint JNICALL |
| Java_nsk_jvmti_GetObjectMonitorUsage_objmonusage001_getResult(JNIEnv *env, jclass cls) { |
| return result; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
