mirror of git://gcc.gnu.org/git/gcc.git
104 lines
3.4 KiB
Java
104 lines
3.4 KiB
Java
/* VMAccessControlState.java -- per-thread state for the access controller.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.security;
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import java.util.LinkedList;
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class VMAccessControlState
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{
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/**
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* A list of {@link AccessControlContext} objects (which can be
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* null) for each call to {@link AccessController#doPrivileged()} in
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* the thread's call stack.
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*/
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private LinkedList contexts = new LinkedList();
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/**
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* A flag indicating that we are within a call to {@link
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* VMAccessController#getContext()}.
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*/
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private boolean inGetContext = false;
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/**
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* Not directly instantiable: use getThreadState() instead.
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*/
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private VMAccessControlState() {}
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/**
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* Return an object representing the access control state of this
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* thread.
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*
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* @return The access control state of this thread, or
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* <code>null</code> if the VM is not initialized to the point of
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* being able to return this.
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*/
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static native VMAccessControlState getThreadState();
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/**
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* Indicate whether this thread is within a call to {@link
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* VMAccessController#getContext()}.
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*
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* @return <code>true</code> if this thread is within a call to
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* {@link VMAccessController#getContext()}.
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*/
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boolean isInGetContext()
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{
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return inGetContext;
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}
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/**
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* Specify whether this thread is within a call to {@link
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* VMAccessController#getContext()}.
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*/
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void setInGetContext(boolean inGetContext)
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{
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this.inGetContext = inGetContext;
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}
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/**
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* Return a list of {@link AccessControlContext} objects (which can
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* be null) for each call to {@link AccessController#doPrivileged()}
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* in the thread's call stack.
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*
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* @return a list of {@link AccessControlContext} objects.
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*/
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LinkedList getContexts()
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{
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return contexts;
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}
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}
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