1 /* |
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2 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.tracing.dtrace; |
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27 |
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28 import java.lang.reflect.Method; |
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29 |
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30 /** |
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31 * Container class for JVM interface native methods |
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32 * |
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33 * @since 1.7 |
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34 */ |
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35 class JVM { |
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36 |
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37 static { |
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38 java.security.AccessController.doPrivileged( |
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39 new java.security.PrivilegedAction<Void>() { |
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40 public Void run() { |
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41 System.loadLibrary("jsdt"); |
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42 return null; |
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43 } |
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44 }); |
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45 } |
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46 |
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47 static long activate(String moduleName, DTraceProvider[] providers) { |
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48 return activate0(moduleName, providers); |
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49 } |
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50 |
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51 static void dispose(long handle) { |
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52 dispose0(handle); |
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53 } |
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54 |
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55 static boolean isEnabled(Method m) { |
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56 return isEnabled0(m); |
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57 } |
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58 |
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59 static boolean isSupported() { |
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60 return isSupported0(); |
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61 } |
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62 |
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63 static Class<?> defineClass( |
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64 ClassLoader loader, String name, byte[] b, int off, int len) { |
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65 return defineClass0(loader, name, b, off, len); |
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66 } |
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67 |
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68 private static native long activate0( |
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69 String moduleName, DTraceProvider[] providers); |
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70 private static native void dispose0(long activation_handle); |
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71 private static native boolean isEnabled0(Method m); |
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72 private static native boolean isSupported0(); |
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73 private static native Class<?> defineClass0( |
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74 ClassLoader loader, String name, byte[] b, int off, int len); |
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75 } |
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