K:/CMGDKv18/SDK/Source/SQL/MySQL/include/thr_lock.h文件参考

#include <my_pthread.h>
#include <my_list.h>

浏览该文件的源代码。

组合类型
struct	st_thr_lock_info
struct	st_thr_lock_owner
struct	st_thr_lock_data
struct	st_lock_list
struct	st_thr_lock
宏定义
#define	thr_lock_owner_init(owner, info_arg)   (owner)->info= (info_arg)
类型定义
typedef struct st_thr_lock_info	THR_LOCK_INFO
typedef struct st_thr_lock_owner	THR_LOCK_OWNER
typedef struct st_thr_lock_data	THR_LOCK_DATA
typedef struct st_thr_lock	THR_LOCK
枚举
enum	thr_lock_type {   TL_IGNORE = -1, TL_UNLOCK, TL_READ_DEFAULT, TL_READ,   TL_READ_WITH_SHARED_LOCKS, TL_READ_HIGH_PRIORITY, TL_READ_NO_INSERT, TL_WRITE_ALLOW_WRITE,   TL_WRITE_ALLOW_READ, TL_WRITE_CONCURRENT_INSERT, TL_WRITE_DELAYED, TL_WRITE_DEFAULT,   TL_WRITE_LOW_PRIORITY, TL_WRITE, TL_WRITE_ONLY }
enum	enum_thr_lock_result { THR_LOCK_SUCCESS = 0, THR_LOCK_ABORTED = 1, THR_LOCK_WAIT_TIMEOUT = 2, THR_LOCK_DEADLOCK = 3 }
函数
my_bool	init_thr_lock (void)
void	thr_lock_info_init (THR_LOCK_INFO *info)
void	thr_lock_init (THR_LOCK *lock)
void	thr_lock_delete (THR_LOCK *lock)
void	thr_lock_data_init (THR_LOCK *lock, THR_LOCK_DATA *data, void *status_param)
enum enum_thr_lock_result	thr_lock (THR_LOCK_DATA *data, THR_LOCK_OWNER *owner, enum thr_lock_type lock_type)
void	thr_unlock (THR_LOCK_DATA *data)
enum enum_thr_lock_result	thr_multi_lock (THR_LOCK_DATA **data, uint count, THR_LOCK_OWNER *owner)
void	thr_multi_unlock (THR_LOCK_DATA **data, uint count)
void	thr_lock_merge_status (THR_LOCK_DATA **data, uint count)
void	thr_abort_locks (THR_LOCK *lock, my_bool upgrade_lock)
my_bool	thr_abort_locks_for_thread (THR_LOCK *lock, my_thread_id thread)
void	thr_print_locks (void)
my_bool	thr_upgrade_write_delay_lock (THR_LOCK_DATA *data, enum thr_lock_type new_lock_type)
void	thr_downgrade_write_lock (THR_LOCK_DATA *data, enum thr_lock_type new_lock_type)
my_bool	thr_reschedule_write_lock (THR_LOCK_DATA *data)
变量
ulong	locks_immediate
ulong	locks_waited
ulong	max_write_lock_count
ulong	table_lock_wait_timeout
my_bool	thr_lock_inited
enum thr_lock_type	thr_upgraded_concurrent_insert_lock
LIST *	thr_lock_thread_list
pthread_mutex_t	THR_LOCK_lock

---

宏定义文档

#define thr_lock_owner_init	(		owner,
			info_arg
	)		(owner)->info= (info_arg)

---

类型定义文档

typedef struct st_thr_lock THR_LOCK

typedef struct st_thr_lock_data THR_LOCK_DATA

typedef struct st_thr_lock_info THR_LOCK_INFO

typedef struct st_thr_lock_owner THR_LOCK_OWNER

---

枚举类型文档

enum enum_thr_lock_result

枚举值:

THR_LOCK_SUCCESS
THR_LOCK_ABORTED
THR_LOCK_WAIT_TIMEOUT
THR_LOCK_DEADLOCK

enum thr_lock_type

Lock types are used to request a lock on a table. Changes in this enumeration might affect transactional locks as well. Important: if a new lock type is added, a matching lock description must be added to sql_test.cc's lock_descriptions array.

参见:

set_handler_table_locks

read_lock_type_for_table

枚举值:

TL_IGNORE
TL_UNLOCK
TL_READ_DEFAULT
TL_READ
TL_READ_WITH_SHARED_LOCKS
TL_READ_HIGH_PRIORITY
TL_READ_NO_INSERT
TL_WRITE_ALLOW_WRITE
TL_WRITE_ALLOW_READ
TL_WRITE_CONCURRENT_INSERT
TL_WRITE_DELAYED
TL_WRITE_DEFAULT
TL_WRITE_LOW_PRIORITY
TL_WRITE
TL_WRITE_ONLY

---

函数文档

my_bool init_thr_lock

(

void

)

void thr_abort_locks	(	THR_LOCK *	lock,
		my_bool	upgrade_lock
	)

my_bool thr_abort_locks_for_thread	(	THR_LOCK *	lock,
		my_thread_id	thread
	)

void thr_downgrade_write_lock	(	THR_LOCK_DATA *	data,
		enum thr_lock_type	new_lock_type
	)

enum enum_thr_lock_result thr_lock	(	THR_LOCK_DATA *	data,
		THR_LOCK_OWNER *	owner,
		enum thr_lock_type	lock_type
	)

void thr_lock_data_init	(	THR_LOCK *	lock,
		THR_LOCK_DATA *	data,
		void *	status_param
	)

void thr_lock_delete

(

THR_LOCK *

lock

)

void thr_lock_info_init

(

THR_LOCK_INFO *

info

)

void thr_lock_init

(

THR_LOCK *

lock

)

void thr_lock_merge_status	(	THR_LOCK_DATA **	data,
		uint	count
	)

enum enum_thr_lock_result thr_multi_lock	(	THR_LOCK_DATA **	data,
		uint	count,
		THR_LOCK_OWNER *	owner
	)

void thr_multi_unlock	(	THR_LOCK_DATA **	data,
		uint	count
	)

void thr_print_locks

(

void

)

my_bool thr_reschedule_write_lock

(

THR_LOCK_DATA *

data

)

void thr_unlock

(

THR_LOCK_DATA *

data

)

my_bool thr_upgrade_write_delay_lock	(	THR_LOCK_DATA *	data,
		enum thr_lock_type	new_lock_type
	)

---

变量文档

ulong locks_immediate

ulong locks_waited

ulong max_write_lock_count

ulong table_lock_wait_timeout

my_bool thr_lock_inited

pthread_mutex_t THR_LOCK_lock

LIST* thr_lock_thread_list

enum thr_lock_type thr_upgraded_concurrent_insert_lock