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src/java.base/share/classes/sun/nio/ch/IOUtil.java

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rev 55657 : 8227587: Add internal privileged System.loadLibrary
Reviewed-by: rriggs
   1 /*
   2  * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 415     public static native void configureBlocking(FileDescriptor fd,
 416                                                 boolean blocking)
 417         throws IOException;
 418 
 419     public static native int fdVal(FileDescriptor fd);
 420 
 421     static native void setfdVal(FileDescriptor fd, int value);
 422 
 423     static native int fdLimit();
 424 
 425     static native int iovMax();
 426 
 427     static native void initIDs();
 428 
 429     /**
 430      * Used to trigger loading of native libraries
 431      */
 432     public static void load() { }
 433 
 434     static {
 435         java.security.AccessController.doPrivileged(
 436                 new java.security.PrivilegedAction<Void>() {
 437                     public Void run() {
 438                         System.loadLibrary("net");
 439                         System.loadLibrary("nio");
 440                         return null;
 441                     }
 442                 });
 443 
 444         initIDs();
 445 
 446         IOV_MAX = iovMax();
 447     }
 448 
 449 }
   1 /*
   2  * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 415     public static native void configureBlocking(FileDescriptor fd,
 416                                                 boolean blocking)
 417         throws IOException;
 418 
 419     public static native int fdVal(FileDescriptor fd);
 420 
 421     static native void setfdVal(FileDescriptor fd, int value);
 422 
 423     static native int fdLimit();
 424 
 425     static native int iovMax();
 426 
 427     static native void initIDs();
 428 
 429     /**
 430      * Used to trigger loading of native libraries
 431      */
 432     public static void load() { }
 433 
 434     static {
 435         jdk.internal.access.SharedSecrets.getJavaLangAccess().loadLibrary("net");
 436         jdk.internal.access.SharedSecrets.getJavaLangAccess().loadLibrary("nio");







 437         initIDs();
 438 
 439         IOV_MAX = iovMax();
 440     }
 441 
 442 }
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