| /* |
| * 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" |
| |
| /* constants */ |
| #define DEFAULT_THREADS_COUNT 10 |
| |
| static int threadsCount = 0; |
| |
| /* ============================================================================= */ |
| |
| static int fillThreadsByName(jvmtiEnv* jvmti, JNIEnv* jni, |
| const char name[], int foundCount, jthread foundThreads[]); |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
| |
| NSK_DISPLAY0("Wait for threads to start\n"); |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| /* perform testing */ |
| { |
| jthread* threads = NULL; |
| jvmtiError* results = NULL; |
| int i; |
| |
| NSK_DISPLAY1("Allocate threads array: %d threads\n", threadsCount); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(Allocate, jvmti, (threadsCount * sizeof(jthread)), |
| (unsigned char**)&threads))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... allocated array: %p\n", (void*)threads); |
| |
| NSK_DISPLAY1("Allocate results array: %d threads\n", threadsCount); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(Allocate, jvmti, (threadsCount * sizeof(jvmtiError)), |
| (unsigned char**)&results))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... allocated array: %p\n", (void*)threads); |
| |
| NSK_DISPLAY1("Find threads: %d threads\n", threadsCount); |
| if (!NSK_VERIFY(fillThreadsByName(jvmti, jni, THREAD_NAME, threadsCount, threads))) |
| return; |
| |
| NSK_DISPLAY0("Suspend threads list\n"); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SuspendThreadList, jvmti, threadsCount, threads, results))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| NSK_DISPLAY0("Check threads results:\n"); |
| for (i = 0; i < threadsCount; i++) { |
| NSK_DISPLAY3(" ... thread #%d: %s (%d)\n", |
| i, TranslateError(results[i]), (int)results[i]); |
| if (!NSK_JVMTI_VERIFY(results[i])) |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| NSK_DISPLAY0("Let threads to run and finish\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| |
| NSK_DISPLAY0("Get state vector for each thread\n"); |
| for (i = 0; i < threadsCount; i++) { |
| jint state = 0; |
| |
| NSK_DISPLAY2(" thread #%d (%p):\n", i, (void*)threads[i]); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetThreadState, jvmti, threads[i], &state))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| NSK_DISPLAY2(" ... got state vector: %s (%d)\n", |
| TranslateState(state), (int)state); |
| |
| if ((state & JVMTI_THREAD_STATE_SUSPENDED) == 0) { |
| NSK_COMPLAIN3("SuspendThreadList() does not turn on flag SUSPENDED for thread #%i:\n" |
| "# state: %s (%d)\n", |
| i, TranslateState(state), (int)state); |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| NSK_DISPLAY0("Resume threads list\n"); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(ResumeThreadList, jvmti, threadsCount, threads, results))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| NSK_DISPLAY0("Wait for thread to finish\n"); |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| NSK_DISPLAY0("Delete threads references\n"); |
| for (i = 0; i < threadsCount; i++) { |
| if (threads[i] != NULL) |
| NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, threads[i])); |
| } |
| |
| NSK_DISPLAY1("Deallocate threads array: %p\n", (void*)threads); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)threads))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| NSK_DISPLAY1("Deallocate results array: %p\n", (void*)results); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)results))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| NSK_DISPLAY0("Let debugee to finish\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Find threads whose name starts with specified name prefix. */ |
| static int fillThreadsByName(jvmtiEnv* jvmti, JNIEnv* jni, |
| const char name[], int foundCount, jthread foundThreads[]) { |
| jint count = 0; |
| jthread* threads = NULL; |
| |
| size_t len = strlen(name); |
| int found = 0; |
| int i; |
| |
| for (i = 0; i < foundCount; i++) { |
| foundThreads[i] = NULL; |
| } |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetAllThreads, jvmti, &count, &threads))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| |
| found = 0; |
| for (i = 0; i < count; i++) { |
| jvmtiThreadInfo info; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetThreadInfo, jvmti, threads[i], &info))) { |
| nsk_jvmti_setFailStatus(); |
| break; |
| } |
| |
| if (info.name != NULL && strncmp(name, info.name, len) == 0) { |
| NSK_DISPLAY3(" ... found thread #%d: %p (%s)\n", |
| found, threads[i], info.name); |
| if (found < foundCount) |
| foundThreads[found] = threads[i]; |
| found++; |
| } |
| |
| } |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)threads))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| |
| if (found != foundCount) { |
| NSK_COMPLAIN3("Unexpected number of tested threads found:\n" |
| "# name: %s\n" |
| "# found: %d\n" |
| "# expected: %d\n", |
| name, found, foundCount); |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| |
| NSK_DISPLAY1("Make global references for threads: %d threads\n", foundCount); |
| for (i = 0; i < foundCount; i++) { |
| if (!NSK_JNI_VERIFY(jni, (foundThreads[i] = (jthread) |
| NSK_CPP_STUB2(NewGlobalRef, jni, foundThreads[i])) != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| NSK_DISPLAY2(" ... thread #%d: %p\n", i, foundThreads[i]); |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_suspendthrdlst001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_suspendthrdlst001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_suspendthrdlst001(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; |
| |
| /* get options */ |
| threadsCount = nsk_jvmti_findOptionIntValue("threads", DEFAULT_THREADS_COUNT); |
| if (!NSK_VERIFY(threadsCount > 0)) |
| return JNI_ERR; |
| |
| /* 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 |
