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kaf24@firebug.cl.cam.ac.uk
559aac4666
abstraction needed for expansion to hot plug and migration support. Also fixed a bug in savestate. Signed-off-by: Vinnie Scarlata <Vincent.r.scarlata@intel.com>
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
// ===================================================================
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//
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// Copyright (c) 2005, Intel Corp.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Intel Corporation nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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// OF THE POSSIBILITY OF SUCH DAMAGE.
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// ===================================================================
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//
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// vtpm_lock.c Provided controlled sync around access to vtpm structures
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//
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// ===================================================================
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#include <pthread.h>
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#include "vtpm_lock.h"
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static pthread_rwlock_t vtpm_lock;
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void vtpm_lock_init() {
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pthread_rwlock_init( &vtpm_lock, NULL);
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}
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void vtpm_lock_destroy(){
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pthread_rwlock_destroy(&vtpm_lock);
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}
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void vtpm_lock_rdlock(){
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pthread_rwlock_rdlock(&vtpm_lock);
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}
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void vtpm_lock_wrlock(){
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pthread_rwlock_wrlock(&vtpm_lock);
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}
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void vtpm_lock_unlock(){
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pthread_rwlock_unlock(&vtpm_lock);
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}
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