| /* |
| * 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 JNIEnv* jni = NULL; |
| static jvmtiEnv *jvmti = NULL; |
| static jlong timeout = 0; |
| |
| /* constants */ |
| #define THREADS_COUNT 6 |
| #define MAX_NAME_LENGTH 100 |
| #define MAX_STACK_SIZE 100 |
| |
| /* thread description structure */ |
| typedef struct { |
| char threadName[MAX_NAME_LENGTH]; |
| int minDepth; |
| jthread thread; |
| } ThreadDesc; |
| |
| /* descriptions of tested threads */ |
| static ThreadDesc threadsDesc[THREADS_COUNT] = { |
| {"threadRunning", 2, NULL}, |
| {"threadEntering", 2, NULL}, |
| {"threadWaiting", 2, NULL}, |
| {"threadSleeping", 2, NULL}, |
| {"threadRunningInterrupted", 2, NULL}, |
| {"threadRunningNative", 2, NULL} |
| }; |
| |
| /* ============================================================================= */ |
| |
| /* testcase(s) */ |
| static int prepare(); |
| static int checkThreads(int suspended, const char* kind); |
| static int suspendThreadsIndividually(int suspend); |
| static int clean(); |
| |
| /* ============================================================================= */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* agentJNI, void* arg) { |
| jni = agentJNI; |
| |
| /* wait for initial sync */ |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| /* perform testcase(s) */ |
| { |
| /* prepare data: find threads */ |
| NSK_DISPLAY0("Prepare data\n"); |
| if (!prepare()) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| /* testcase #1: check not suspended threads */ |
| NSK_DISPLAY0("Testcase #1: check stack frames of not suspended threads\n"); |
| if (!checkThreads(NSK_FALSE, "not suspended")) |
| return; |
| |
| /* suspend threads */ |
| NSK_DISPLAY0("Suspend each thread\n"); |
| if (!suspendThreadsIndividually(NSK_TRUE)) |
| return; |
| |
| /* testcase #2: check suspended threads */ |
| NSK_DISPLAY0("Testcase #2: check stack frames of suspended threads\n"); |
| if (!checkThreads(NSK_TRUE, "suspended")) |
| return; |
| |
| /* resume threads */ |
| NSK_DISPLAY0("Resume each thread\n"); |
| if (!suspendThreadsIndividually(NSK_FALSE)) |
| return; |
| |
| /* testcase #3: check resumed threads */ |
| NSK_DISPLAY0("Testcase #3: check stack frames of resumed threads\n"); |
| if (!checkThreads(NSK_FALSE, "resumed")) |
| return; |
| |
| /* clean date: delete threads references */ |
| NSK_DISPLAY0("Clean data\n"); |
| if (!clean()) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| } |
| |
| /* resume debugee after last sync */ |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** |
| * Prepare data: |
| * - clean threads list |
| * - get all live threads with names |
| * - find tested threads by name |
| * - make global refs |
| */ |
| static int prepare() { |
| jthread *allThreadsList = NULL; |
| jint allThreadsCount = 0; |
| int found = 0; |
| int i; |
| |
| NSK_DISPLAY1("Find tested threads: %d\n", THREADS_COUNT); |
| |
| /* clean threads list */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| threadsDesc[i].thread = (jthread)NULL; |
| } |
| |
| /* get all live threads */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetAllThreads, jvmti, &allThreadsCount, &allThreadsList))) |
| return NSK_FALSE; |
| |
| if (!NSK_VERIFY(allThreadsCount > 0 && allThreadsList != NULL)) |
| return NSK_FALSE; |
| |
| /* find tested threads */ |
| for (i = 0; i < allThreadsCount; i++) { |
| jvmtiThreadInfo threadInfo; |
| |
| if (!NSK_VERIFY(allThreadsList[i] != NULL)) |
| return NSK_FALSE; |
| |
| /* get thread name (info) */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetThreadInfo, jvmti, allThreadsList[i], &threadInfo))) |
| return NSK_FALSE; |
| |
| /* find by name */ |
| if (threadInfo.name != NULL) { |
| int j; |
| |
| for (j = 0; j < THREADS_COUNT; j++) { |
| if (strcmp(threadInfo.name, threadsDesc[j].threadName) == 0) { |
| threadsDesc[j].thread = allThreadsList[i]; |
| NSK_DISPLAY3(" thread #%d (%s): %p\n", |
| j, threadInfo.name, (void*)threadsDesc[j].thread); |
| } |
| } |
| } |
| } |
| |
| /* deallocate all threads list */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)allThreadsList))) |
| return NSK_FALSE; |
| |
| /* check if all tested threads found */ |
| found = 0; |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (threadsDesc[i].thread == NULL) { |
| NSK_COMPLAIN2("Not found tested thread #%d (%s)\n", i, threadsDesc[i].threadName); |
| } else { |
| found++; |
| } |
| } |
| |
| if (found < THREADS_COUNT) |
| return NSK_FALSE; |
| |
| /* make global refs */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (!NSK_JNI_VERIFY(jni, (threadsDesc[i].thread = (jthread) |
| NSK_CPP_STUB2(NewGlobalRef, jni, threadsDesc[i].thread)) != NULL)) |
| return NSK_FALSE; |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Suspend or resume tested threads. |
| */ |
| static int suspendThreadsIndividually(int suspend) { |
| int i; |
| |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (suspend) { |
| NSK_DISPLAY2(" suspend thread #%d (%s)\n", i, threadsDesc[i].threadName); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(SuspendThread, jvmti, threadsDesc[i].thread))) |
| nsk_jvmti_setFailStatus(); |
| } else { |
| NSK_DISPLAY2(" resume thread #%d (%s)\n", i, threadsDesc[i].threadName); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(ResumeThread, jvmti, threadsDesc[i].thread))) |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Testcase: check tested threads |
| * - invoke getFrameCount() for each thread |
| * - check if frameCount is not less than minimal stack depth |
| * - invoke getStackTrace() for each thread |
| * - check if stack depth is not less than frameCount |
| * - for suspended thread check if stack depth is equal to frameCount |
| * |
| * Returns NSK_TRUE if test may continue; or NSK_FALSE for test break. |
| */ |
| static int checkThreads(int suspended, const char* kind) { |
| int i; |
| |
| /* check each thread */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| jint frameCount = 0; |
| jint frameStackSize = 0; |
| jvmtiFrameInfo frameStack[MAX_STACK_SIZE]; |
| int found = 0; |
| |
| NSK_DISPLAY2(" thread #%d (%s):\n", i, threadsDesc[i].threadName); |
| |
| /* get frame count */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetFrameCount, jvmti, |
| threadsDesc[i].thread, &frameCount))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_TRUE; |
| } |
| |
| NSK_DISPLAY1(" frameCount: %d\n", (int)frameCount); |
| |
| /* get stack trace */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB6(GetStackTrace, jvmti, threadsDesc[i].thread, |
| 0, MAX_STACK_SIZE, frameStack, &frameStackSize))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_TRUE; |
| } |
| |
| NSK_DISPLAY1(" stack depth: %d\n", (int)frameStackSize); |
| |
| /* check frame count */ |
| if (frameCount < threadsDesc[i].minDepth) { |
| NSK_COMPLAIN5("Too few frameCount of %s thread #%d (%s):\n" |
| "# got frameCount: %d\n" |
| "# expected minimum: %d\n", |
| kind, i, threadsDesc[i].threadName, |
| (int)frameCount, threadsDesc[i].minDepth); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| /* check if stack size is not less than frameCount */ |
| if (frameStackSize < frameCount) { |
| NSK_COMPLAIN5("Too small stack of %s thread #%d (%s):\n" |
| "# getStackTrace(): %d\n" |
| "# getFrameCount(): %d\n", |
| kind, i, threadsDesc[i].threadName, |
| (int)frameStackSize, (int)frameCount); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| /* for suspended thread: check if stack size is equal to frameCount */ |
| if (suspended) { |
| if (frameStackSize != frameCount) { |
| NSK_COMPLAIN5("Different frames count for %s thread #%d (%s):\n" |
| "# getStackTrace(): %d\n" |
| "# getFrameCount(): %d\n", |
| kind, i, threadsDesc[i].threadName, |
| (int)frameStackSize, (int)frameCount); |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| } |
| |
| /* test may continue */ |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Clean data: |
| * - dispose global references to tested threads |
| */ |
| static int clean() { |
| int i; |
| |
| /* dispose global references to threads */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, threadsDesc[i].thread)); |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| static volatile int testedThreadRunning = NSK_FALSE; |
| static volatile int testedThreadShouldFinish = NSK_FALSE; |
| |
| /** Native running method in tested thread. */ |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_scenarios_sampling_SP02_sp02t001ThreadRunningNative_testedMethod(JNIEnv* jni, |
| jobject obj) { |
| volatile int i = 0, n = 1000; |
| |
| /* run in a loop */ |
| testedThreadRunning = NSK_TRUE; |
| while (!testedThreadShouldFinish) { |
| if (n <= 0) |
| n = 1000; |
| if (i >= n) |
| i = 0; |
| i++; |
| } |
| testedThreadRunning = NSK_FALSE; |
| } |
| |
| /** Wait for native method is running. */ |
| JNIEXPORT jboolean JNICALL |
| Java_nsk_jvmti_scenarios_sampling_SP02_sp02t001ThreadRunningNative_checkReady(JNIEnv* jni, |
| jobject obj) { |
| while (!testedThreadRunning) { |
| nsk_jvmti_sleep(1000); |
| } |
| return testedThreadRunning ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| /** Let native method to finish. */ |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_scenarios_sampling_SP02_sp02t001ThreadRunningNative_letFinish(JNIEnv* jni, |
| jobject obj) { |
| testedThreadShouldFinish = NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_sp02t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_sp02t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_sp02t001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| |
| /* 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 |
