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PKCS#11 wrapper based on sunpkcs11
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// Copyright (c) 2002 Graz University of Technology. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
//    this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. The end-user documentation included with the redistribution, if any, must
//    include the following acknowledgment:
//
//    "This product includes software developed by IAIK of Graz University of
//     Technology."
//
//    Alternately, this acknowledgment may appear in the software itself, if and
//    wherever such third-party acknowledgments normally appear.
//
// 4. The names "Graz University of Technology" and "IAIK of Graz University of
//    Technology" must not be used to endorse or promote products derived from
//    this software without prior written permission.
//
// 5. Products derived from this software may not be called "IAIK PKCS Wrapper",
//    nor may "IAIK" appear in their name, without prior written permission of
//    Graz University of Technology.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE LICENSOR BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
// OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

package iaik.pkcs.pkcs11;

/**
 * The interface that an object must implement to be a valid parameter for the
 * initialize method of a Module object.
 *
 * @author Karl Scheibelhofer
 * @version 1.0
 */
public interface InitializeArgs {

  /**
   * Returns the object that implements the functionality for
   * handling mutexes. It returns null, if no handler is set. If this method
   * returns null, the wrapper does not pass any callback functions to the
   * underlying module; i.e. is passes null-pointer for the functions.
   *
   * @return The handler object for mutex functionality, or null, if there is
   *         no handler for mutexes.
   */
  MutexHandler getMutexHandler();

  /**
   * Check, if application threads which are executing calls to the library
   * may not use native operating system calls to spawn new threads.
   *
   * @return True, if application threads which are executing calls to the
   *         library may not use native operating system calls to spawn new
   *         threads. False, if they may.
   */
  boolean isLibraryCantCreateOsThreads();

  /**
   * Check, if the library can use the native operation system threading model
   * for locking.
   *
   * @return True, if the library can use the native operation system
   *         threading model for locking. False, otherwise.
   */
  boolean isOsLockingOk();

  /**
   * Reserved parameter.
   *
   * @return Should be null in this version.
   */
  Object getReserved();

}