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/*
* 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;
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_objmonusage006(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_objmonusage006(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_objmonusage006(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;
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_objmonusage006_check(JNIEnv *env, jclass cls, jobject obj) {
jvmtiError err;
jvmtiMonitorUsage inf;
err = (*jvmti)->GetObjectMonitorUsage(jvmti, obj, &inf);
if (err == JVMTI_ERROR_MUST_POSSESS_CAPABILITY &&
!caps.can_get_monitor_info) {
/* Ok, it's expected */
} else if (err != JVMTI_ERROR_NONE) {
printf("(GetObjectMonitorUsage) unexpected error: %s (%d)\n",
TranslateError(err), err);
result = STATUS_FAILED;
}
}
JNIEXPORT jint JNICALL
Java_nsk_jvmti_GetObjectMonitorUsage_objmonusage006_getRes(JNIEnv *env, jclass cls) {
return result;
}
#ifdef __cplusplus
}
#endif
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