thr_rwlock_bits.h File Reference

MySQL rwlock ABI. More...

#include <stddef.h>
#include <sys/types.h>
#include <mysql/components/services/bits/my_thread_bits.h>
#include <mysql/components/services/bits/thr_cond_bits.h>
#include <mysql/components/services/bits/thr_mutex_bits.h>

Go to the source code of this file.

Classes
struct	rw_pr_lock_t
	Portable implementation of special type of read-write locks. More...

Typedefs
typedef pthread_rwlock_t	native_rw_lock_t

Detailed Description

MySQL rwlock ABI.

There are two "layers": 1) native_rw_*() Functions that map directly down to OS primitives. Windows - SRWLock Other OSes - pthread 2) mysql_rw*() Functions that include Performance Schema instrumentation. See include/mysql/psi/mysql_thread.h

This file also includes rw_pr_*(), which implements a special version of rwlocks that prefer readers. The P_S version of these are mysql_prlock_*() - see include/mysql/psi/mysql_thread.h

Typedef Documentation

native_rw_lock_t

typedef pthread_rwlock_t native_rw_lock_t