mysql_thread.h File Reference

#include "mysql/psi/psi.h"

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Classes
struct	st_mysql_mutex
struct	st_mysql_rwlock
struct	st_mysql_prlock
struct	st_mysql_cond

Macros
#define	mysql_mutex_assert_owner(M)   safe_mutex_assert_owner(&(M)->m_mutex)
#define	mysql_mutex_assert_not_owner(M)   safe_mutex_assert_not_owner(&(M)->m_mutex)
#define	mysql_prlock_assert_write_owner(M)   rw_pr_lock_assert_write_owner(&(M)->m_prlock)
#define	mysql_prlock_assert_not_write_owner(M)   rw_pr_lock_assert_not_write_owner(&(M)->m_prlock)
#define	mysql_mutex_register(P1, P2, P3)   inline_mysql_mutex_register(P1, P2, P3)
#define	mysql_mutex_init(K, M, A)   inline_mysql_mutex_init(M, A)
#define	mysql_mutex_destroy(M)   inline_mysql_mutex_destroy(M)
#define	mysql_mutex_lock(M)   inline_mysql_mutex_lock(M)
#define	mysql_mutex_trylock(M)   inline_mysql_mutex_trylock(M)
#define	mysql_mutex_unlock(M)   inline_mysql_mutex_unlock(M)
#define	mysql_rwlock_register(P1, P2, P3)   inline_mysql_rwlock_register(P1, P2, P3)
#define	mysql_rwlock_init(K, RW)   inline_mysql_rwlock_init(RW)
#define	mysql_prlock_init(K, RW)   inline_mysql_prlock_init(RW)
#define	mysql_rwlock_destroy(RW)   inline_mysql_rwlock_destroy(RW)
#define	mysql_prlock_destroy(RW)   inline_mysql_prlock_destroy(RW)
#define	mysql_rwlock_rdlock(RW)   inline_mysql_rwlock_rdlock(RW)
#define	mysql_prlock_rdlock(RW)   inline_mysql_prlock_rdlock(RW)
#define	mysql_rwlock_wrlock(RW)   inline_mysql_rwlock_wrlock(RW)
#define	mysql_prlock_wrlock(RW)   inline_mysql_prlock_wrlock(RW)
#define	mysql_rwlock_tryrdlock(RW)   inline_mysql_rwlock_tryrdlock(RW)
#define	mysql_rwlock_trywrlock(RW)   inline_mysql_rwlock_trywrlock(RW)
#define	mysql_rwlock_unlock(RW)   inline_mysql_rwlock_unlock(RW)
#define	mysql_prlock_unlock(RW)   inline_mysql_prlock_unlock(RW)
#define	mysql_cond_register(P1, P2, P3)   inline_mysql_cond_register(P1, P2, P3)
#define	mysql_cond_init(K, C, A)   inline_mysql_cond_init(C, A)
#define	mysql_cond_destroy(C)   inline_mysql_cond_destroy(C)
#define	mysql_cond_wait(C, M)   inline_mysql_cond_wait(C, M)
#define	mysql_cond_timedwait(C, M, W)   inline_mysql_cond_timedwait(C, M, W)
#define	mysql_cond_signal(C)   inline_mysql_cond_signal(C)
#define	mysql_cond_broadcast(C)   inline_mysql_cond_broadcast(C)
#define	mysql_thread_register(P1, P2, P3)   inline_mysql_thread_register(P1, P2, P3)
#define	mysql_thread_create(K, P1, P2, P3, P4)   pthread_create(P1, P2, P3, P4)
#define	mysql_thread_set_psi_id(I)   do {} while (0)

Typedefs
typedef struct st_mysql_mutex	mysql_mutex_t
typedef struct st_mysql_rwlock	mysql_rwlock_t
typedef struct st_mysql_prlock	mysql_prlock_t
typedef struct st_mysql_cond	mysql_cond_t

Detailed Description

Instrumentation helpers for mysys threads, mutexes, read write locks and conditions. This header file provides the necessary declarations to use the mysys thread API with the performance schema instrumentation. In some compilers (SunStudio), 'static inline' functions, when declared but not used, are not optimized away (because they are unused) by default, so that including a static inline function from a header file does create unwanted dependencies, causing unresolved symbols at link time. Other compilers, like gcc, optimize these dependencies by default.

Since the instrumented APIs declared here are wrapper on top of my_pthread / safemutex / etc APIs, including mysql/psi/mysql_thread.h assumes that the dependency on my_pthread and safemutex already exists.

Definition in file mysql_thread.h.