2 * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
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5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
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12 * 3. Berkeley Software Design Inc's name may not be used to endorse or
13 * promote products derived from this software without specific prior
16 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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34 struct lock_profile_object {
36 * This does not result in variant structure sizes because
37 * MUTEX_PROFILING is in opt_global.h
39 u_int64_t lpo_acqtime;
40 u_int64_t lpo_waittime;
41 const char *lpo_filename;
46 * Fields relating to measuring contention on mutexes.
47 * holding must be accessed atomically since it's
48 * modified by threads that don't yet hold the mutex.
49 * locking is only modified and referenced while
52 u_int lpo_contest_holding;
53 u_int lpo_contest_locking;
57 const char *lo_name; /* Individual lock name. */
58 const char *lo_type; /* General lock type. */
61 struct lock_profile_object lo_profile_obj;
63 union { /* Data for witness. */
64 STAILQ_ENTRY(lock_object) lod_list;
65 struct witness *lod_witness;
69 #endif /* !_SYS__LOCK_H_ */