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/*
* Copyright (c) 2007, 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"
#ifndef STANDALONE
#include "JVMTITools.h"
#endif
#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 THREAD_STATE_MASK ~(JVMTI_THREAD_STATE_SUSPENDED \
| JVMTI_THREAD_STATE_INTERRUPTED \
| JVMTI_THREAD_STATE_IN_NATIVE \
| JVMTI_THREAD_STATE_VENDOR_1 \
| JVMTI_THREAD_STATE_VENDOR_2 \
| JVMTI_THREAD_STATE_VENDOR_3)
static int g_ThreadState[] = {
0, /* TS_NEW */
JVMTI_THREAD_STATE_TERMINATED, /* TS_TERMINATED */
JVMTI_THREAD_STATE_ALIVE
| JVMTI_THREAD_STATE_RUNNABLE, /* TS_RUN_RUNNING */
JVMTI_THREAD_STATE_ALIVE
| JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, /* TS_RUN_BLOCKED */
JVMTI_THREAD_STATE_ALIVE
| JVMTI_THREAD_STATE_IN_OBJECT_WAIT
| JVMTI_THREAD_STATE_WAITING
| JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT, /* TS_RUN_WAIT_TIMED */
JVMTI_THREAD_STATE_ALIVE
| JVMTI_THREAD_STATE_IN_OBJECT_WAIT
| JVMTI_THREAD_STATE_WAITING
| JVMTI_THREAD_STATE_WAITING_INDEFINITELY, /* TS_RUN_WAIT_INDEF */
JVMTI_THREAD_STATE_ALIVE
| JVMTI_THREAD_STATE_PARKED
| JVMTI_THREAD_STATE_WAITING
| JVMTI_THREAD_STATE_WAITING_INDEFINITELY, /* TS_RUN_WAIT_PARKED_INDEF */
JVMTI_THREAD_STATE_ALIVE
| JVMTI_THREAD_STATE_PARKED
| JVMTI_THREAD_STATE_WAITING
| JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT, /* TS_RUN_WAIT_PARKED_TIMED */
JVMTI_THREAD_STATE_ALIVE
| JVMTI_THREAD_STATE_SLEEPING
| JVMTI_THREAD_STATE_WAITING
| JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT, /* TS_RUN_WAIT_SLEEPING */
};
static jvmtiEnv * g_ppJvmtiEnv = NULL;
static int g_waitTime = 1000;
jrawMonitorID g_waitMon; /* Monitor is used just for sleeping */
void reportError(const char * szErr, int res) {
#ifndef STANDALONE
printf("%s (%d: %s)\n", szErr, res, TranslateError(res));
#else
printf("%s (%d)\n", szErr, res);
#endif
fflush(stdout);
}
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_thrstat005(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_thrstat005(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_thrstat005(JavaVM *jvm, char *options, void *reserved) {
return JNI_VERSION_1_8;
}
#endif
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
jint res;
res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &g_ppJvmtiEnv), JVMTI_VERSION_1_1);
if ( res != JNI_OK || ! g_ppJvmtiEnv ) {
printf("Agent_OnLoad: Error: GetEnv returned error or NULL\n");
return JNI_ERR;
}
res = (*g_ppJvmtiEnv)->CreateRawMonitor(g_ppJvmtiEnv, "beast", &g_waitMon);
if ( res != JVMTI_ERROR_NONE ) {
reportError("Agent_OnLoad: error creating raw monitor", res);
return JNI_ERR;
}
return JNI_OK;
}
JNIEXPORT void JNICALL
Java_nsk_jvmti_GetThreadState_thrstat005_setWaitTime(JNIEnv * pEnv, jclass class, jint waitTime) {
g_waitTime = waitTime;
}
JNIEXPORT jboolean JNICALL
Java_nsk_jvmti_GetThreadState_thrstat005_checkThreadState(JNIEnv * pEnv, jclass class, jthread thread, jint stateIdx) {
jint thrState;
jint maskedThrState;
int waitTime = 10;
/* Repeat querying status until waitTime < g_waitTime */
do {
int res = (*g_ppJvmtiEnv)->GetThreadState(g_ppJvmtiEnv, thread, &thrState);
if (res != JVMTI_ERROR_NONE) {
reportError("GetThreadState: unexpected error", res);
return JNI_FALSE;
}
maskedThrState = thrState & THREAD_STATE_MASK;
printf("GetThreadState = %x. Masked: %x. Must be: %x\n", thrState, maskedThrState, g_ThreadState[stateIdx]);
fflush(stdout);
if ( maskedThrState == g_ThreadState[stateIdx] )
return JNI_TRUE;
printf("checkThreadState: wait %d ms\n", waitTime);
fflush(stdout);
if ( (res = (*g_ppJvmtiEnv)->RawMonitorEnter(g_ppJvmtiEnv, g_waitMon)) != JVMTI_ERROR_NONE
|| (res = (*g_ppJvmtiEnv)->RawMonitorWait(g_ppJvmtiEnv, g_waitMon, waitTime)) != JVMTI_ERROR_NONE
|| (res = (*g_ppJvmtiEnv)->RawMonitorExit(g_ppJvmtiEnv, g_waitMon)) != JVMTI_ERROR_NONE ) {
reportError("GetThreadState: unexpected error", res);
return JNI_FALSE;
}
waitTime <<= 1;
} while ( waitTime < g_waitTime );
return JNI_FALSE;
}
#ifdef __cplusplus
}
#endif
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