/*
* Licensed to the Apache Software Foundation ( ASF ) under one
* or more contributor license agreements . See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership . The ASF licenses this file
* to you under the Apache License , Version 2 . 0 ( the
* " License " ) ; you may not use this file except in compliance
* with the License . You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing ,
* software distributed under the License is distributed on an
* " AS IS " BASIS , WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND , either express or implied . See the License for the
* specific language governing permissions and limitations
* under the License .
*/
/*
* author Tomas Hurka
*/
#ifdef WIN32
#include <Windows.h>
#else
#define _GNU_SOURCE
#include <dlfcn.h>
#endif
#include <stdio.h>
#include "jni.h"
#include "jvmti.h"
#include "org_netbeans_lib_profiler_server_system_HeapDump.h"
jint (JNICALL *JVM_DumpHeap15)(JNIEnv* env, jstring outputfile, jboolean live);
/*
* Class : org_netbeans_lib_profiler_server_system_HeapDump
* Method : initialize15
* Signature : ( ) V
*/
JNIEXPORT void JNICALL Java_org_netbeans_lib_profiler_server_system_HeapDump_initialize15
(JNIEnv *env, jclass clz) {
#ifdef WIN32
/* Get the address of JVM_DumpHeap function */
HMODULE hModule = GetModuleHandle("jvm.dll" );
if (hModule == NULL) {
fprintf(stderr, "Profiler Agent Error: Unable to get handle to jvm.dll\n" );
return ; /* Unable to get handle to jvm.dll */
}
JVM_DumpHeap15 = (jint (JNICALL *)(JNIEnv*,jstring,jboolean)) GetProcAddress(hModule, "JVM_DumpHeap" );
if (JVM_DumpHeap15 == NULL) {
fprintf(stderr, "Profiler Agent Error: Unable to get address of JVM_DumpHeap function\n" );
return ; /* Unable to get address of JVM_DumpHeap function */
}
#else
JVM_DumpHeap15 = (jint (JNICALL *)(JNIEnv*,jstring,jboolean)) dlsym(RTLD_DEFAULT, "JVM_DumpHeap" );
if (JVM_DumpHeap15 == NULL) {
//fprintf (stderr, "Profiler Agent: %s\n", dlerror());
return ;
}
#endif
//fprintf(stderr, "Profiler Agent: JVM_DumpHeap %p\n",JVM_DumpHeap15);
}
/*
* Class : org_netbeans_lib_profiler_server_system_HeapDump
* Method : takeHeapDump15Native
* Signature : ( Ljava / lang / String ; ) I
*/
JNIEXPORT jint JNICALL Java_org_netbeans_lib_profiler_server_system_HeapDump_takeHeapDump15Native
(JNIEnv *env, jclass clz, jstring outputfile) {
jint error = -1 ;
if (JVM_DumpHeap15 != NULL) {
fprintf(stdout,"Profiler Agent: Heap dump.." );
error = (*JVM_DumpHeap15)(env,outputfile,JNI_TRUE);
fprintf(stdout," end, status %d\n" ,(int )error);
}
return error;
}
Messung V0.5 in Prozent C=89 H=100 G=94
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-10-01)
¤
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