| /* |
| * 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 <string.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "jni_tools.h" |
| #include "jvmti_tools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* ============================================================================= */ |
| |
| /* scaffold objects */ |
| static jlong timeout = 0; |
| |
| /* constant names */ |
| #define THREAD_NAME "TestedThread" |
| #define N_LATE_CALLS 10000 |
| |
| /* ============================================================================= */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
| |
| /* Original agentProc test block starts here: */ |
| NSK_DISPLAY0("Wait for thread to start\n"); |
| // SP2.1-n - notify agent is waiting and wait |
| // SP3.1-w - wait to start test |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| /* perform testing */ |
| { |
| jthread testedThread = NULL; |
| int late_count; |
| |
| NSK_DISPLAY1("Find thread: %s\n", THREAD_NAME); |
| if (!NSK_VERIFY((testedThread = |
| nsk_jvmti_threadByName(THREAD_NAME)) != NULL)) |
| return; |
| NSK_DISPLAY1(" ... found thread: %p\n", (void*)testedThread); |
| |
| NSK_DISPLAY1("Suspend thread: %p\n", (void*)testedThread); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(SuspendThread, jvmti, testedThread))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| NSK_DISPLAY0("Let thread to run and finish\n"); |
| // SP5.1-n - notify suspend done |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| |
| NSK_DISPLAY1("Get state vector for thread: %p\n", (void*)testedThread); |
| { |
| jint state = 0; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetThreadState, jvmti, testedThread, &state))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| NSK_DISPLAY2(" ... got state vector: %s (%d)\n", |
| TranslateState(state), (int)state); |
| |
| if ((state & JVMTI_THREAD_STATE_SUSPENDED) == 0) { |
| NSK_COMPLAIN2("SuspendThread() does not turn on flag SUSPENDED:\n" |
| "# state: %s (%d)\n", |
| TranslateState(state), (int)state); |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| NSK_DISPLAY1("Resume thread: %p\n", (void*)testedThread); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(ResumeThread, jvmti, testedThread))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| /* Original agentProc test block ends here. */ |
| |
| /* |
| * Using printf() instead of NSK_DISPLAY1() in this loop |
| * in order to slow down the rate of SuspendThread() calls. |
| */ |
| for (late_count = 0; late_count < N_LATE_CALLS; late_count++) { |
| jvmtiError l_err; |
| printf("INFO: Late suspend thread: %p\n", (void*)testedThread); |
| l_err = NSK_CPP_STUB2(SuspendThread, jvmti, testedThread); |
| if (l_err != JVMTI_ERROR_NONE) { |
| printf("INFO: Late suspend thread err: %d\n", l_err); |
| // testedThread has exited so we're done with late calls |
| break; |
| } |
| |
| // Only resume a thread if suspend worked. Using NSK_DISPLAY1() |
| // here because we want ResumeThread() to be faster. |
| NSK_DISPLAY1("INFO: Late resume thread: %p\n", (void*)testedThread); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(ResumeThread, jvmti, testedThread))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| printf("INFO: made %d late calls to JVM/TI SuspendThread()\n", |
| late_count); |
| printf("INFO: N_LATE_CALLS==%d value is %slarge enough to cause a " |
| "SuspendThread() call after thread exit.\n", N_LATE_CALLS, |
| (late_count == N_LATE_CALLS) ? "NOT " : ""); |
| |
| /* Second part of original agentProc test block starts here: */ |
| NSK_DISPLAY0("Wait for thread to finish\n"); |
| // SP4.1-n - notify agent is waiting and wait |
| // SP6.1-w - wait to end test |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| NSK_DISPLAY0("Delete thread reference\n"); |
| NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, testedThread)); |
| } |
| |
| NSK_DISPLAY0("Let debugee to finish\n"); |
| // SP7.1-n - notify agent end |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| /* Second part of original agentProc test block ends here. */ |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_suspendthrd003(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_suspendthrd003(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_suspendthrd003(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jvmtiEnv* jvmti = NULL; |
| |
| /* init framework and parse options */ |
| if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
| return JNI_ERR; |
| |
| timeout = nsk_jvmti_getWaitTime() * 60 * 1000; |
| |
| /* create JVMTI environment */ |
| if (!NSK_VERIFY((jvmti = |
| nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
| return JNI_ERR; |
| |
| /* add specific capabilities for suspending thread */ |
| { |
| jvmtiCapabilities suspendCaps; |
| memset(&suspendCaps, 0, sizeof(suspendCaps)); |
| suspendCaps.can_suspend = 1; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(AddCapabilities, jvmti, &suspendCaps))) |
| return JNI_ERR; |
| } |
| |
| /* register agent proc and arg */ |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| return JNI_OK; |
| } |
| |
| /* ============================================================================= */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
