MySQL 8.1.0
Source Code Documentation
mysql_rwlock_bits.h
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22
23#ifndef COMPONENTS_SERVICES_BITS_MYSQL_RWLOCK_BITS_H
24#define COMPONENTS_SERVICES_BITS_MYSQL_RWLOCK_BITS_H
25
26/**
27 @file mysql/components/services/bits/mysql_rwlock_bits.h
28 Instrumentation helpers for rwlock.
29*/
30
32
33/**
34 @defgroup psi_api_rwlock Rwlock Instrumentation (API)
35 @ingroup psi_api
36 @{
37*/
38
39/**
40 An instrumented rwlock structure.
41 @c mysql_rwlock_t is a drop-in replacement for @c pthread_rwlock_t.
42 @sa mysql_rwlock_init
43 @sa mysql_rwlock_rdlock
44 @sa mysql_rwlock_tryrdlock
45 @sa mysql_rwlock_wrlock
46 @sa mysql_rwlock_trywrlock
47 @sa mysql_rwlock_unlock
48 @sa mysql_rwlock_destroy
49*/
51 /** The real rwlock */
53 /**
54 The instrumentation hook.
55 Note that this hook is not conditionally defined,
56 for binary compatibility of the @c mysql_rwlock_t interface.
57 */
59};
60
61/**
62 An instrumented prlock structure.
63 A prlock is a read write lock that 'prefers readers' (pr).
64 @c mysql_prlock_t is a drop-in replacement for @c rw_pr_lock_t.
65 @sa mysql_prlock_init
66 @sa mysql_prlock_rdlock
67 @sa mysql_prlock_wrlock
68 @sa mysql_prlock_unlock
69 @sa mysql_prlock_destroy
70*/
72 /** The real prlock */
74 /**
75 The instrumentation hook.
76 Note that this hook is not conditionally defined,
77 for binary compatibility of the @c mysql_rwlock_t interface.
78 */
80};
81
82/** @} (end of group psi_api_rwlock) */
83
84#endif /* COMPONENTS_SERVICES_BITS_MYSQL_RWLOCK_BITS_H */
Interface for an instrumented rwlock.
Definition: psi_rwlock_bits.h:70
An instrumented prlock structure.
Definition: mysql_rwlock_bits.h:71
struct PSI_rwlock * m_psi
The instrumentation hook.
Definition: mysql_rwlock_bits.h:79
rw_pr_lock_t m_prlock
The real prlock.
Definition: mysql_rwlock_bits.h:73
An instrumented rwlock structure.
Definition: mysql_rwlock_bits.h:50
struct PSI_rwlock * m_psi
The instrumentation hook.
Definition: mysql_rwlock_bits.h:58
native_rw_lock_t m_rwlock
The real rwlock.
Definition: mysql_rwlock_bits.h:52
Portable implementation of special type of read-write locks.
Definition: thr_rwlock_bits.h:94
MySQL rwlock ABI.
pthread_rwlock_t native_rw_lock_t
Definition: thr_rwlock_bits.h:60