thr_mutex.h File Reference

MySQL mutex implementation. More...

#include <assert.h>
#include <stddef.h>
#include <stdlib.h>
#include <sys/types.h>
#include "my_inttypes.h"
#include "my_macros.h"
#include "my_thread.h"
#include "mysql/components/services/bits/thr_mutex_bits.h"

Go to the source code of this file.

Macros
#define	MY_MUTEX_INIT_SLOW   NULL
#define	MY_MUTEX_INIT_FAST   NULL
#define	MY_MUTEX_INIT_ERRCHK   NULL

Functions
static int	native_mutex_init (native_mutex_t *mutex, const native_mutexattr_t *attr)
static int	native_mutex_lock (native_mutex_t *mutex)
static int	native_mutex_trylock (native_mutex_t *mutex)
static int	native_mutex_unlock (native_mutex_t *mutex)
static int	native_mutex_destroy (native_mutex_t *mutex)
static int	my_mutex_init (my_mutex_t *mp, const native_mutexattr_t *attr)
static int	my_mutex_lock (my_mutex_t *mp)
static int	my_mutex_trylock (my_mutex_t *mp)
static int	my_mutex_unlock (my_mutex_t *mp)
static int	my_mutex_destroy (my_mutex_t *mp)

Detailed Description

MySQL mutex implementation.

There are three "layers": 1) native_mutex_*() Functions that map directly down to OS primitives. Windows - CriticalSection Other OSes - pthread 2) my_mutex_*() Functions that implement SAFE_MUTEX (default for debug), Otherwise native_mutex_*() is used. 3) mysql_mutex_*() Functions that include Performance Schema instrumentation. See include/mysql/psi/mysql_thread.h

Macro Definition Documentation

MY_MUTEX_INIT_ERRCHK

#define MY_MUTEX_INIT_ERRCHK   NULL

MY_MUTEX_INIT_FAST

#define MY_MUTEX_INIT_FAST   NULL

MY_MUTEX_INIT_SLOW

#define MY_MUTEX_INIT_SLOW   NULL

Function Documentation

my_mutex_destroy()

static int my_mutex_destroy ( my_mutex_t *  mp )

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my_mutex_init()

static int my_mutex_init ( my_mutex_t *  mp, const native_mutexattr_t *  attr  )

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my_mutex_lock()

static int my_mutex_lock ( my_mutex_t *  mp )

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my_mutex_trylock()

static int my_mutex_trylock ( my_mutex_t *  mp )

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my_mutex_unlock()

static int my_mutex_unlock ( my_mutex_t *  mp )

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native_mutex_destroy()

static int native_mutex_destroy ( native_mutex_t *  mutex )

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native_mutex_init()

static int native_mutex_init ( native_mutex_t *  mutex, const native_mutexattr_t *  attr  )

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native_mutex_lock()

static int native_mutex_lock ( native_mutex_t *  mutex )

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native_mutex_trylock()

static int native_mutex_trylock ( native_mutex_t *  mutex )

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native_mutex_unlock()

static int native_mutex_unlock ( native_mutex_t *  mutex )

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