MySQL 8.2.0
Source Code Documentation
ut0guarded.h
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27/** @file include/ut0guarded.h
28The ut::Guarded template which protects access to another class with mutex. */
29
30#ifndef ut0guarded_h
31#define ut0guarded_h
32
33#ifndef UNIV_LIBRARY
34#include "ut0cpu_cache.h"
35#include "ut0mutex.h"
36#endif
37
38namespace ut {
39// TBD: should latch_id be specified at runtime?
40template <typename Inner, latch_id_t latch_id>
41class Guarded {
42#ifndef UNIV_LIBRARY
44#endif
45 Inner inner;
46
47 public:
48 template <typename F>
49 auto latch_and_execute(F &&f, const ut::Location &loc) {
50#ifndef UNIV_LIBRARY
51 IB_mutex_guard guard{&mutex, loc};
52#endif
53 return std::forward<F>(f)(inner);
54 }
55
56 const Inner &peek() const { return inner; }
57};
58} // namespace ut
59#endif /* ut0guarded_h */
Definition: ut0guarded.h:41
Inner inner
Definition: ut0guarded.h:45
auto latch_and_execute(F &&f, const ut::Location &loc)
Definition: ut0guarded.h:49
Cacheline_padded< IB_mutex > mutex
Definition: ut0guarded.h:43
const Inner & peek() const
Definition: ut0guarded.h:56
This file contains a set of libraries providing overloads for regular dynamic allocation routines whi...
Definition: aligned_alloc.h:47
Definition: ut0mutex.h:127
A utility wrapper class, which adds padding at the end of the wrapped structure, so that the next obj...
Definition: ut0cpu_cache.h:54
Definition: ut0core.h:35
Utilities related to CPU cache.
Policy based mutexes.