1 karl  1.3 //%2006////////////////////////////////////////////////////////////////////////

 2 mike  1.1 //
 3           // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
 4           // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
 5           // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
 6           // IBM Corp.; EMC Corporation, The Open Group.
 7           // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
 8           // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
 9           // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
10           // EMC Corporation; VERITAS Software Corporation; The Open Group.

11 karl  1.3 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
12           // EMC Corporation; Symantec Corporation; The Open Group.

13 mike  1.1 //
14           // Permission is hereby granted, free of charge, to any person obtaining a copy
15           // of this software and associated documentation files (the "Software"), to
16           // deal in the Software without restriction, including without limitation the
17           // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
18           // sell copies of the Software, and to permit persons to whom the Software is
19           // furnished to do so, subject to the following conditions:

20 karl  1.3 // 

21 mike  1.1 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
22           // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
23           // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
24           // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
25           // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
26           // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
27           // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28           // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29           //
30           //==============================================================================
31           //
32           // Author: Mike Brasher, Inova Europe (mike-brasher@austin.rr.com)
33           //
34           //%/////////////////////////////////////////////////////////////////////////////
35           
36           #ifndef Pegasus_SpinLock_POSIX_h
37           #define Pegasus_SpinLock_POSIX_h
38           
39           #include <Pegasus/Common/Config.h>
40           #include <pthread.h>
41           
42 mike  1.1 PEGASUS_NAMESPACE_BEGIN
43           
44           // This type implements a spinlock. It is deliberately not a class since we 
45           // wish to avoid automatic construction/destruction.
46           struct SpinLock
47           {
48               pthread_spinlock_t lock;
49           };
50           
51           inline void SpinLockCreate(SpinLock& x)
52           {
53               pthread_spin_init(&x.lock, 0);
54           }
55           
56           inline void SpinLockDestroy(SpinLock& x)
57           {
58               pthread_spin_destroy(&x.lock);
59           }
60           
61           inline void SpinLockLock(SpinLock& x)
62           {
63 mike  1.1     pthread_spin_lock(&x.lock);
64           }
65           
66           inline void SpinLockUnlock(SpinLock& x)
67           {
68               pthread_spin_unlock(&x.lock);
69           }
70           
71           PEGASUS_NAMESPACE_END
72           
73           #endif /* Pegasus_SpinLock_POSIX_h */