J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * |
| 8 | * - Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * - Neither the name of Sun Microsystems nor the names of its |
| 16 | * contributors may be used to endorse or promote products derived |
| 17 | * from this software without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| 20 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 21 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 24 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 25 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 26 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 27 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | #include <stdlib.h> |
| 34 | #include <string.h> |
| 35 | |
| 36 | #include "jni.h" |
| 37 | #include "jvmti.h" |
| 38 | |
| 39 | #include "agent_util.h" |
| 40 | |
| 41 | #include "Thread.hpp" |
| 42 | |
| 43 | /* Implementation of the Thread class */ |
| 44 | |
| 45 | Thread::Thread(jvmtiEnv *jvmti, JNIEnv *env, jthread thread) |
| 46 | { |
| 47 | jvmtiError err; |
| 48 | jvmtiThreadInfo info; |
| 49 | |
| 50 | /* Get and save the name of the thread */ |
| 51 | info.name = NULL; |
| 52 | (void)strcpy(name, "Unknown"); |
| 53 | err = jvmti->GetThreadInfo(thread, &info); |
| 54 | check_jvmti_error(jvmti, err, "get thread info"); |
| 55 | if ( info.name != NULL ) { |
| 56 | (void)strncpy(name, info.name, (int)sizeof(name)-1); |
| 57 | name[(int)sizeof(name)-1] = 0; |
| 58 | deallocate(jvmti, info.name); |
| 59 | } |
| 60 | |
| 61 | /* Clear thread counters */ |
| 62 | contends = 0; |
| 63 | waits = 0; |
| 64 | timeouts = 0; |
| 65 | } |
| 66 | |
| 67 | Thread::~Thread() |
| 68 | { |
| 69 | /* Send out summary message */ |
| 70 | stdout_message("Thread %s summary: %d waits plus %d contended\n", |
| 71 | name, waits, contends); |
| 72 | } |
| 73 | |
| 74 | void Thread::monitor_contended_enter(jvmtiEnv* jvmti, JNIEnv *env, |
| 75 | jthread thread, jobject object) |
| 76 | { |
| 77 | contends++; |
| 78 | } |
| 79 | |
| 80 | void Thread::monitor_wait(jvmtiEnv* jvmti, JNIEnv *env, |
| 81 | jthread thread, jobject object, jlong timeout) |
| 82 | { |
| 83 | waits++; |
| 84 | } |
| 85 | |
| 86 | void Thread::monitor_waited(jvmtiEnv* jvmti, JNIEnv *env, |
| 87 | jthread thread, jobject object, jboolean timed_out) |
| 88 | { |
| 89 | if ( timed_out ) { |
| 90 | timeouts++; |
| 91 | } |
| 92 | } |