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Posted to commits@apr.apache.org by rb...@apache.org on 2001/09/09 01:36:35 UTC

cvs commit: apr/locks/win32 thread_rwlock.c

rbb         01/09/08 16:36:35

  Modified:    .        CHANGES
               locks/beos Makefile.in
               locks/os2 Makefile.in
               locks/unix Makefile.in
  Added:       include  apr_thread_rwlock.h
               include/arch/beos thread_rwlock.h
               include/arch/netware thread_rwlock.h
               include/arch/os2 thread_rwlock.h
               include/arch/unix thread_rwlock.h
               include/arch/win32 thread_rwlock.h
               locks/beos thread_rwlock.c
               locks/netware thread_rwlock.c
               locks/os2 thread_rwlock.c
               locks/unix thread_rwlock.c
               locks/win32 thread_rwlock.c
  Log:
  Add the new thread read/write API to APR.  This doesn't change any
  API, just adds a new one.
  
  Submitted by:	Aaron Bannert <aa...@clove.org>
  
  Revision  Changes    Path
  1.151     +6 -0      apr/CHANGES
  
  Index: CHANGES
  ===================================================================
  RCS file: /home/cvs/apr/CHANGES,v
  retrieving revision 1.150
  retrieving revision 1.151
  diff -u -r1.150 -r1.151
  --- CHANGES	2001/08/31 06:07:34	1.150
  +++ CHANGES	2001/09/08 23:36:34	1.151
  @@ -1,5 +1,11 @@
   Changes with APR b1  
   
  +  *) Add the new thread read/write lock API to APR.
  +     [Aaron Bannert <aa...@clove.org>]
  +
  +  *) Add the new thread mutex lock API to APR.
  +     [Aaron Bannert <aa...@clove.org>]
  +
     *) Cache GMT offset on platforms that don't store it in the tm struct.
        This offset is normalized to be independent of daylight savings
        time.  [Brian Pane <bp...@pacbell.net>]
  
  
  
  1.1                  apr/include/apr_thread_rwlock.h
  
  Index: apr_thread_rwlock.h
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #ifndef APR_THREAD_RWLOCK_H
  #define APR_THREAD_RWLOCK_H
  
  #include "apr.h"
  #include "apr_pools.h"
  #include "apr_errno.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif /* __cplusplus */
  
  #if APR_HAS_THREADS
  
  /**
   * @file apr_lock.h
   * @brief APR Thread RWLock Routines
   */
  
  /**
   * @defgroup APR_ThreadRWLock Thread RWLock Routines
   * @ingroup APR
   * @{
   */
  
  typedef struct apr_thread_rwlock_t apr_thread_rwlock_t;
  
  /**
   * Create and initialize a read-write lock that can be used to synchronize
   * threads.
   * @param rwlock the memory address where the newly created readwrite lock
   *        will be stored.
   * @param pool the pool from which to allocate the mutex.
   */
  APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
                                                     apr_pool_t *pool);
  /**
   * Acquire a shared-read lock on the given read-write lock. This will allow
   * multiple threads to enter the same critical section while they have acquired
   * the read lock.
   * @param rwlock the read-write lock on which to acquire the shared read.
   */
  APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock);
  
  /**
   * Attempt to acquire the shread-read lock on the given read-write lock. This
   * is the same as apr_thread_rwlock_rdlock(), only that the funtion fails
   * if there is another thread holding the write lock, or if there are any
   * write threads blocking on the lock. If the function failes for this case,
   * APR_EBUSY will be returned. Note: it is important that the
   * APR_STATUS_IS_EBUSY(s) macro be used to determine if the return value was
   * APR_EBUSY, for portability reasons.
   * @param rwlock the rwlock on which to attempt the shared read.
   */
  APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock);
  
  /**
   * Acquire an exclusive-write lock on the given read-write lock. This will
   * allow only one single thread to enter the critical sections. If there
   * are any threads currently holding thee read-lock, this thread is put to
   * sleep until it can have exclusive access to the lock.
   * @param rwlock the read-write lock on which to acquire the exclusive write.
   */
  APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock);
  
  /**
   * Attempt to acquire the exclusive-write lock on the given read-write lock. 
   * This is the same as apr_thread_rwlock_wrlock(), only that the funtion fails
   * if there is any other thread holding the lock (for reading or writing),
   * in which case the function will return APR_EBUSY. Note: it is important
   * that the APR_STATUS_IS_EBUSY(s) macro be used to determine if the return
   * value was APR_EBUSY, for portability reasons.
   * @param rwlock the rwlock on which to attempt the exclusive write.
   */
  APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock);
  
  /**
   * Release either the read or write lock currently held by the calling thread
   * associated with the given read-write lock.
   * @param rwlock the read-write lock rom which to release the lock.
   */
  APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock);
  
  /**
   * Destroy the read-write lock and free the associated memory.
   * @param rwlock the rwlock to destroy.
   */
  APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock);
  
  #endif  /* APR_HAS_THREADS */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif  /* ! APR_THREAD_RWLOCK_H */
  
  
  
  1.1                  apr/include/arch/beos/thread_rwlock.h
  
  Index: thread_rwlock.h
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #ifndef THREAD_RWLOCK_H
  #define THREAD_RWLOCK_H
  
  #include <kernel/OS.h>
  #include "apr_pools.h"
  #include "apr_thread_rwlock.h"
  #include "apr_file_io.h"
  #include "apr_general.h"
  #include "apr_lib.h"
  #include "apr_portable.h"
  
  struct apr_thread_rwlock_t {
      apr_pool_t *pool;
  };
  
  #endif  /* THREAD_RWLOCK_H */
  
  
  
  
  1.1                  apr/include/arch/netware/thread_rwlock.h
  
  Index: thread_rwlock.h
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #ifndef THREAD_RWLOCK_H
  #define THREAD_RWLOCK_H
  
  #include "apr_thread_rwlock.h"
  #include <nks/synch.h>
  
  struct apr_thread_rwlock_t {
      apr_pool_t *pool;
  };
  
  #endif  /* THREAD_RWLOCK_H */
  
  
  
  
  1.1                  apr/include/arch/os2/thread_rwlock.h
  
  Index: thread_rwlock.h
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #ifndef THREAD_RWLOCK_H
  #define THREAD_RWLOCK_H
  
  #include "apr_thread_rwlock.h"
  #include "apr_file_io.h"
  
  struct apr_thread_rwlock_t {
      apr_pool_t *pool;
  };
  
  #endif  /* THREAD_RWLOCK_H */
  
  
  
  
  1.1                  apr/include/arch/unix/thread_rwlock.h
  
  Index: thread_rwlock.h
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #ifndef THREAD_RWLOCK_H
  #define THREAD_RWLOCK_H
  
  #include "apr.h"
  #include "apr_private.h"
  #include "apr_general.h"
  #include "apr_thread_rwlock.h"
  #include "apr_pools.h"
  
  #if APR_HAVE_PTHREAD_H
  /* this gives us pthread_rwlock_t */
  #include <pthread.h>
  #endif
  
  #if APR_HAS_THREADS
  struct apr_thread_rwlock_t {
      apr_pool_t *pool;
      pthread_rwlock_t *rwlock;
  };
  #endif
  
  #endif  /* THREAD_RWLOCK_H */
  
  
  
  
  1.1                  apr/include/arch/win32/thread_rwlock.h
  
  Index: thread_rwlock.h
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #ifndef THREAD_RWLOCK_H
  #define THREAD_RWLOCK_H
  
  #include "apr_thread_rwlock.h"
  
  struct apr_thread_rwlock_t {
      apr_pool_t *pool;
  };
  
  #endif  /* THREAD_RWLOCK_H */
  
  
  
  
  1.14      +2 -1      apr/locks/beos/Makefile.in
  
  Index: Makefile.in
  ===================================================================
  RCS file: /home/cvs/apr/locks/beos/Makefile.in,v
  retrieving revision 1.13
  retrieving revision 1.14
  diff -u -r1.13 -r1.14
  --- Makefile.in	2001/09/04 23:28:51	1.13
  +++ Makefile.in	2001/09/08 23:36:34	1.14
  @@ -1,6 +1,7 @@
   
   TARGETS = locks.lo \
  -	thread_mutex.lo
  +	thread_mutex.lo \
  +	thread_rwlock.lo
   
   # bring in rules.mk for standard functionality
   @INCLUDE_RULES@
  
  
  
  1.1                  apr/locks/beos/thread_rwlock.c
  
  Index: thread_rwlock.c
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  /*Read/Write locking implementation based on the MultiLock code from
   * Stephen Beaulieu <hi...@be.com>
   */
   
  #include "beos/thread_rwlock.h"
  #include "apr_strings.h"
  #include "apr_portable.h"
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
                                                     apr_pool_t *pool)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  
  
  
  1.1                  apr/locks/netware/thread_rwlock.c
  
  Index: thread_rwlock.c
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #include "apr.h"
  #include "apr_private.h"
  #include "apr_general.h"
  #include "apr_strings.h"
  #include "thread_rwlock.h"
  #include "apr_portable.h"
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
                                                     apr_pool_t *pool)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  
  
  
  1.14      +2 -1      apr/locks/os2/Makefile.in
  
  Index: Makefile.in
  ===================================================================
  RCS file: /home/cvs/apr/locks/os2/Makefile.in,v
  retrieving revision 1.13
  retrieving revision 1.14
  diff -u -r1.13 -r1.14
  --- Makefile.in	2001/09/04 23:28:51	1.13
  +++ Makefile.in	2001/09/08 23:36:34	1.14
  @@ -1,6 +1,7 @@
   
   TARGETS = locks.lo \
  -	thread_mutex.lo
  +	thread_mutex.lo \
  +	thread_rwlock.lo
   
   # bring in rules.mk for standard functionality
   @INCLUDE_RULES@
  
  
  
  1.1                  apr/locks/os2/thread_rwlock.c
  
  Index: thread_rwlock.c
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #include "apr_general.h"
  #include "apr_lib.h"
  #include "apr_strings.h"
  #include "apr_portable.h"
  #include "thread_rwlock.h"
  #include "fileio.h"
  #include <string.h>
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
                                                     apr_pool_t *pool)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  
  
  
  1.20      +2 -1      apr/locks/unix/Makefile.in
  
  Index: Makefile.in
  ===================================================================
  RCS file: /home/cvs/apr/locks/unix/Makefile.in,v
  retrieving revision 1.19
  retrieving revision 1.20
  diff -u -r1.19 -r1.20
  --- Makefile.in	2001/09/04 23:28:51	1.19
  +++ Makefile.in	2001/09/08 23:36:34	1.20
  @@ -3,7 +3,8 @@
   	locks.lo \
   	crossproc.lo \
   	intraproc.lo \
  -	thread_mutex.lo
  +	thread_mutex.lo \
  +	thread_rwlock.lo
   
   # bring in rules.mk for standard functionality
   @INCLUDE_RULES@
  
  
  
  1.1                  apr/locks/unix/thread_rwlock.c
  
  Index: thread_rwlock.c
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #include "thread_rwlock.h"
  
  #if APR_HAS_THREADS
  
  static apr_status_t thread_rwlock_cleanup(void *data)
  {
      apr_thread_rwlock_t *rwlock = (apr_thread_rwlock_t *)data;
      apr_status_t stat;
  
      pthread_rwlock_unlock(rwlock->rwlock);
      stat = pthread_rwlock_destroy(rwlock->rwlock);
  #ifdef PTHREAD_SETS_ERRNO
      if (stat) {
          stat = errno;
      }
  #endif
      return stat;
  } 
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
                                                     apr_pool_t *pool)
  {
      apr_thread_rwlock_t *new_rwlock;
      apr_status_t stat;
  
      new_rwlock = (apr_thread_rwlock_t *)apr_pcalloc(pool,
                                                    sizeof(apr_thread_rwlock_t));
  
      if (new_rwlock == NULL) {
          return APR_ENOMEM;
      }
  
      new_rwlock->pool = pool;
      new_rwlock->rwlock = (pthread_rwlock_t *)apr_palloc(pool, 
                                                       sizeof(pthread_rwlock_t));
  
      if (new_rwlock->rwlock == NULL) {
          return APR_ENOMEM;
      }
  
      if ((stat = pthread_rwlock_init(new_rwlock->rwlock, NULL))) {
  #ifdef PTHREAD_SETS_ERRNO
          stat = errno;
  #endif
          thread_rwlock_cleanup(new_rwlock);
          return stat;
      }
  
      apr_pool_cleanup_register(new_rwlock->pool,
                                (void *)new_rwlock, thread_rwlock_cleanup,
                                apr_pool_cleanup_null);
  
      *rwlock = new_rwlock;
      return APR_SUCCESS;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
  {
      apr_status_t stat;
  
      stat = pthread_rwlock_rdlock(rwlock->rwlock);
  #ifdef PTHREAD_SETS_ERRNO
      if (stat) {
          stat = errno;
      }
  #endif
      return stat;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
  {
      apr_status_t stat;
  
      stat = pthread_rwlock_tryrdlock(rwlock->rwlock);
  #ifdef PTHREAD_SETS_ERRNO
      if (stat) {
          stat = errno;
      }
  #endif
      /* Normalize the return code. */
      if (stat == EBUSY)
          stat = APR_EBUSY;
      return stat;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
  {
      apr_status_t stat;
  
      stat = pthread_rwlock_wrlock(rwlock->rwlock);
  #ifdef PTHREAD_SETS_ERRNO
      if (stat) {
          stat = errno;
      }
  #endif
      return stat;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
  {
      apr_status_t stat;
  
      stat = pthread_rwlock_trywrlock(rwlock->rwlock);
  #ifdef PTHREAD_SETS_ERRNO
      if (stat) {
          stat = errno;
      }
  #endif
      /* Normalize the return code. */
      if (stat == EBUSY)
          stat = APR_EBUSY;
      return stat;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
  {
      apr_status_t stat;
  
      stat = pthread_rwlock_unlock(rwlock->rwlock);
  #ifdef PTHREAD_SETS_ERRNO
      if (stat) {
          stat = errno;
      }
  #endif
      return stat;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
  {
      apr_status_t stat;
      if ((stat = thread_rwlock_cleanup(rwlock)) == APR_SUCCESS) {
          apr_pool_cleanup_kill(rwlock->pool, rwlock, thread_rwlock_cleanup);
          return APR_SUCCESS;
      }
      return stat;
  }
  
  #endif /* APR_HAS_THREADS */
  
  
  
  1.1                  apr/locks/win32/thread_rwlock.c
  
  Index: thread_rwlock.c
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  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 the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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 APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #include "apr.h"
  #include "apr_private.h"
  #include "apr_general.h"
  #include "apr_strings.h"
  #include "win32/thread_rwlock.h"
  #include "apr_portable.h"
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
                                                     apr_pool_t *pool)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }
  
  APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
  {
      return APR_ENOTIMPL;
  }