MySQL 8.4.3
Source Code Documentation
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#include "my_thread_local.h"
#include "mysql/gtid/tag_plain.h"
#include "mysql/psi/mysql_thread.h"
#include "rpl_context.h"
#include "sql/handler.h"
Go to the source code of this file.
Classes | |
struct | st_server_ssl_variables |
Struct to share server ssl variables. More... | |
struct | Trans_table_info |
This represents table metadata involved in a transaction. More... | |
struct | Trans_context_info |
This represents some of the context in which a transaction is running It summarizes all necessary requirements for Group Replication to work. More... | |
struct | Trans_gtid_info |
This represents the GTID context of the transaction. More... | |
struct | Trans_param |
Transaction observer parameter. More... | |
struct | Trans_observer |
Observes and extends transaction execution. More... | |
struct | Server_state_param |
struct | Server_state_observer |
Observer server state. More... | |
struct | Binlog_storage_param |
Binlog storage observer parameters. More... | |
struct | Binlog_storage_observer |
Observe binlog logging storage. More... | |
struct | Binlog_transmit_param |
Replication binlog transmitter (binlog dump) observer parameter. More... | |
struct | Binlog_transmit_observer |
Observe and extends the binlog dumping thread. More... | |
struct | Binlog_relay_IO_param |
Replication binlog relay IO observer parameter. More... | |
struct | Binlog_relay_IO_observer |
Observes and extends the service of slave IO thread. More... | |
Macros | |
#define | MYSQL_THD THD * |
#define | TRANS_PARAM_ZERO(trans_param_obj) memset(&trans_param_obj, 0, sizeof(Trans_param)); |
Transaction observer parameter initialization. More... | |
#define | THD_ENTER_COND(P1, P2, P3, P4, P5) thd_enter_cond(P1, P2, P3, P4, P5, __func__, __FILE__, __LINE__) |
#define | THD_EXIT_COND(P1, P2) thd_exit_cond(P1, P2, __func__, __FILE__, __LINE__) |
Typedefs | |
typedef struct Trans_table_info | Trans_table_info |
This represents table metadata involved in a transaction. More... | |
typedef struct Trans_context_info | Trans_context_info |
This represents some of the context in which a transaction is running It summarizes all necessary requirements for Group Replication to work. More... | |
typedef struct Trans_gtid_info | Trans_gtid_info |
This represents the GTID context of the transaction. More... | |
typedef struct Trans_param | Trans_param |
Transaction observer parameter. More... | |
typedef int(* | before_dml_t) (Trans_param *param, int &out_val) |
typedef int(* | before_commit_t) (Trans_param *param) |
This callback is called before transaction commit. More... | |
typedef int(* | before_rollback_t) (Trans_param *param) |
This callback is called before transaction rollback. More... | |
typedef int(* | after_commit_t) (Trans_param *param) |
This callback is called after transaction commit. More... | |
typedef int(* | after_rollback_t) (Trans_param *param) |
This callback is called after transaction rollback. More... | |
typedef int(* | begin_t) (Trans_param *param, int &out_val) |
This callback is called before a sql command is executed. More... | |
typedef struct Trans_observer | Trans_observer |
Observes and extends transaction execution. More... | |
typedef struct Server_state_param | Server_state_param |
typedef int(* | before_handle_connection_t) (Server_state_param *param) |
This is called just before the server is ready to accept the client connections to the Server/Node. More... | |
typedef int(* | before_recovery_t) (Server_state_param *param) |
This callback is called before the start of the recovery. More... | |
typedef int(* | after_engine_recovery_t) (Server_state_param *param) |
This callback is called after the end of the engine recovery. More... | |
typedef int(* | after_recovery_t) (Server_state_param *param) |
This callback is called after the end of the recovery procedure. More... | |
typedef int(* | before_server_shutdown_t) (Server_state_param *param) |
This callback is called before the start of the shutdown procedure. More... | |
typedef int(* | after_server_shutdown_t) (Server_state_param *param) |
This callback is called after the end of the shutdown procedure. More... | |
typedef int(* | after_dd_upgrade_t) (Server_state_param *param) |
This is called just after an upgrade from MySQL 5.7 populates the data dictionary for the first time. More... | |
typedef struct Server_state_observer | Server_state_observer |
Observer server state. More... | |
typedef struct Binlog_storage_param | Binlog_storage_param |
Binlog storage observer parameters. More... | |
typedef int(* | after_flush_t) (Binlog_storage_param *param, const char *log_file, my_off_t log_pos) |
This callback is called after binlog has been flushed. More... | |
typedef int(* | after_sync_t) (Binlog_storage_param *param, const char *log_file, my_off_t log_pos) |
typedef struct Binlog_storage_observer | Binlog_storage_observer |
Observe binlog logging storage. More... | |
typedef struct Binlog_transmit_param | Binlog_transmit_param |
Replication binlog transmitter (binlog dump) observer parameter. More... | |
typedef int(* | transmit_start_t) (Binlog_transmit_param *param, const char *log_file, my_off_t log_pos) |
This callback is called when binlog dumping starts. More... | |
typedef int(* | transmit_stop_t) (Binlog_transmit_param *param) |
This callback is called when binlog dumping stops. More... | |
typedef int(* | reserve_header_t) (Binlog_transmit_param *param, unsigned char *header, unsigned long size, unsigned long *len) |
This callback is called to reserve bytes in packet header for event transmission. More... | |
typedef int(* | before_send_event_t) (Binlog_transmit_param *param, unsigned char *packet, unsigned long len, const char *log_file, my_off_t log_pos) |
This callback is called before sending an event packet to slave. More... | |
typedef int(* | after_send_event_t) (Binlog_transmit_param *param, const char *event_buf, unsigned long len, const char *skipped_log_file, my_off_t skipped_log_pos) |
This callback is called after an event packet is sent to the slave or is skipped. More... | |
typedef int(* | after_reset_master_t) (Binlog_transmit_param *param) |
This callback is called after resetting master status. More... | |
typedef struct Binlog_transmit_observer | Binlog_transmit_observer |
Observe and extends the binlog dumping thread. More... | |
typedef struct Binlog_relay_IO_param | Binlog_relay_IO_param |
Replication binlog relay IO observer parameter. More... | |
typedef int(* | thread_start_t) (Binlog_relay_IO_param *param) |
This callback is called when slave IO thread starts. More... | |
typedef int(* | thread_stop_t) (Binlog_relay_IO_param *param) |
This callback is called when slave IO thread stops. More... | |
typedef int(* | applier_start_t) (Binlog_relay_IO_param *param) |
This callback is called when a relay log consumer thread starts. More... | |
typedef int(* | applier_stop_t) (Binlog_relay_IO_param *param, bool aborted) |
This callback is called when a relay log consumer thread stops. More... | |
typedef int(* | before_request_transmit_t) (Binlog_relay_IO_param *param, uint32 flags) |
This callback is called before slave requesting binlog transmission from master. More... | |
typedef int(* | after_read_event_t) (Binlog_relay_IO_param *param, const char *packet, unsigned long len, const char **event_buf, unsigned long *event_len) |
This callback is called after read an event packet from master. More... | |
typedef int(* | after_queue_event_t) (Binlog_relay_IO_param *param, const char *event_buf, unsigned long event_len, uint32 flags) |
This callback is called after written an event packet to relay log. More... | |
typedef int(* | after_reset_slave_t) (Binlog_relay_IO_param *param) |
This callback is called after reset replica relay log IO status. More... | |
typedef int(* | applier_log_event_t) (Binlog_relay_IO_param *param, Trans_param *trans_param, int &out) |
This callback is called before event gets applied. More... | |
typedef struct Binlog_relay_IO_observer | Binlog_relay_IO_observer |
Observes and extends the service of slave IO thread. More... | |
Enumerations | |
enum | Trans_flags { TRANS_IS_REAL_TRANS = 1 } |
Transaction observer flags. More... | |
enum | Binlog_storage_flags { BINLOG_STORAGE_IS_SYNCED = 1 } |
Binlog storage flags. More... | |
enum | Binlog_relay_IO_flags { BINLOG_RELAY_IS_SYNCED = 1 } |
Binlog relay IO flags. More... | |
Functions | |
int | register_trans_observer (Trans_observer *observer, void *p) |
Register a transaction observer. More... | |
int | unregister_trans_observer (Trans_observer *observer, void *p) |
Unregister a transaction observer. More... | |
int | register_binlog_storage_observer (Binlog_storage_observer *observer, void *p) |
Register a binlog storage observer. More... | |
int | unregister_binlog_storage_observer (Binlog_storage_observer *observer, void *p) |
Unregister a binlog storage observer. More... | |
int | register_binlog_transmit_observer (Binlog_transmit_observer *observer, void *p) |
Register a binlog transmit observer. More... | |
int | unregister_binlog_transmit_observer (Binlog_transmit_observer *observer, void *p) |
Unregister a binlog transmit observer. More... | |
int | register_server_state_observer (Server_state_observer *observer, void *p) |
Register a server state observer. More... | |
int | unregister_server_state_observer (Server_state_observer *observer, void *p) |
Unregister a server state observer. More... | |
int | register_binlog_relay_io_observer (Binlog_relay_IO_observer *observer, void *p) |
Register a binlog relay IO (slave IO thread) observer. More... | |
int | unregister_binlog_relay_io_observer (Binlog_relay_IO_observer *observer, void *p) |
Unregister a binlog relay IO (slave IO thread) observer. More... | |
void | thd_enter_cond (void *opaque_thd, mysql_cond_t *cond, mysql_mutex_t *mutex, const PSI_stage_info *stage, PSI_stage_info *old_stage, const char *src_function, const char *src_file, int src_line) |
Set thread entering a condition. More... | |
void | thd_exit_cond (void *opaque_thd, const PSI_stage_info *stage, const char *src_function, const char *src_file, int src_line) |
Set thread leaving a condition. More... | |
int | get_user_var_int (const char *name, long long int *value, int *null_value) |
Get the value of user variable as an integer. More... | |
int | get_user_var_real (const char *name, double *value, int *null_value) |
Get the value of user variable as a double precision float number. More... | |
int | get_user_var_str (const char *name, char *value, size_t len, unsigned int precision, int *null_value) |
Get the value of user variable as a string. More... | |
#define MYSQL_THD THD * |
#define THD_ENTER_COND | ( | P1, | |
P2, | |||
P3, | |||
P4, | |||
P5 | |||
) | thd_enter_cond(P1, P2, P3, P4, P5, __func__, __FILE__, __LINE__) |
#define THD_EXIT_COND | ( | P1, | |
P2 | |||
) | thd_exit_cond(P1, P2, __func__, __FILE__, __LINE__) |
#define TRANS_PARAM_ZERO | ( | trans_param_obj | ) | memset(&trans_param_obj, 0, sizeof(Trans_param)); |
Transaction observer parameter initialization.
typedef int(* after_commit_t) (Trans_param *param) |
This callback is called after transaction commit.
This callback is called right after commit to storage engines for transactional tables.
For non-transactional tables, this is called at the end of the statement, before sending statement status, if the statement succeeded.
param | The parameter for transaction observers |
0 | Success |
1 | Failure |
typedef int(* after_dd_upgrade_t) (Server_state_param *param) |
This is called just after an upgrade from MySQL 5.7 populates the data dictionary for the first time.
[in] | param | Observer common parameter |
0 | Success |
>0 | Failure |
typedef int(* after_engine_recovery_t) (Server_state_param *param) |
This callback is called after the end of the engine recovery.
This is called before the start of the recovery procedure ie. the engine recovery.
[in] | param | Observer common parameter |
0 | Success |
>0 | Failure |
typedef int(* after_flush_t) (Binlog_storage_param *param, const char *log_file, my_off_t log_pos) |
This callback is called after binlog has been flushed.
This callback is called after cached events have been flushed to binary log file but not yet synced.
param | Observer common parameter |
log_file | Binlog file name been updated |
log_pos | Binlog position after update |
0 | Success |
1 | Failure |
typedef int(* after_queue_event_t) (Binlog_relay_IO_param *param, const char *event_buf, unsigned long event_len, uint32 flags) |
This callback is called after written an event packet to relay log.
param | Observer common parameter |
event_buf | Event packet written to relay log |
event_len | Length of the event packet written to relay log |
flags | flags for relay log |
0 | Success |
1 | Failure |
typedef int(* after_read_event_t) (Binlog_relay_IO_param *param, const char *packet, unsigned long len, const char **event_buf, unsigned long *event_len) |
This callback is called after read an event packet from master.
param | Observer common parameter |
packet | The event packet read from master |
len | Length of the event packet read from master |
event_buf | The event packet return after process |
event_len | The length of event packet return after process |
0 | Success |
1 | Failure |
typedef int(* after_recovery_t) (Server_state_param *param) |
This callback is called after the end of the recovery procedure.
[in] | param | Observer common parameter |
0 | Success |
>0 | Failure |
typedef int(* after_reset_master_t) (Binlog_transmit_param *param) |
This callback is called after resetting master status.
This is called when executing the command RESET BINARY LOGS AND GTIDS, and is used to reset status variables added by observers.
param | Observer common parameter |
0 | Success |
1 | Failure |
typedef int(* after_reset_slave_t) (Binlog_relay_IO_param *param) |
This callback is called after reset replica relay log IO status.
param | Observer common parameter |
0 | Success |
1 | Failure |
typedef int(* after_rollback_t) (Trans_param *param) |
This callback is called after transaction rollback.
This callback is called right after rollback to storage engines for transactional tables.
For non-transactional tables, this is called at the end of the statement, before sending statement status, if the statement failed.
param | The parameter for transaction observers |
0 | Success |
1 | Failure |
typedef int(* after_send_event_t) (Binlog_transmit_param *param, const char *event_buf, unsigned long len, const char *skipped_log_file, my_off_t skipped_log_pos) |
This callback is called after an event packet is sent to the slave or is skipped.
param | Observer common parameter |
event_buf | Binlog event packet buffer sent |
len | length of the event packet buffer |
skipped_log_file | Binlog file name of the event that was skipped in the master. This is null if the position was not skipped |
skipped_log_pos | Binlog position of the event that was skipped in the master. 0 if not skipped |
0 | Success |
1 | Failure |
typedef int(* after_server_shutdown_t) (Server_state_param *param) |
This callback is called after the end of the shutdown procedure.
Can be used as a checkpoint of the proper cleanup operations in some cases.
[in] | param | Observer common parameter |
0 | Success |
>0 | Failure |
typedef int(* after_sync_t) (Binlog_storage_param *param, const char *log_file, my_off_t log_pos) |
typedef int(* applier_log_event_t) (Binlog_relay_IO_param *param, Trans_param *trans_param, int &out) |
This callback is called before event gets applied.
param | Observer common parameter |
trans_param | The parameter for transaction observers |
out | Return value from observer execution to help validate event according to observer requirement. |
0 | Success |
1 | Failure |
typedef int(* applier_start_t) (Binlog_relay_IO_param *param) |
This callback is called when a relay log consumer thread starts.
param | Observer common parameter |
0 | Success |
1 | Failure |
typedef int(* applier_stop_t) (Binlog_relay_IO_param *param, bool aborted) |
This callback is called when a relay log consumer thread stops.
param | Observer common parameter |
aborted | thread aborted or exited on error |
0 | Success |
1 | Failure |
typedef int(* before_commit_t) (Trans_param *param) |
This callback is called before transaction commit.
This callback is called right before write binlog cache to binary log.
param | The parameter for transaction observers |
0 | Success |
1 | Failure |
typedef int(* before_dml_t) (Trans_param *param, int &out_val) |
typedef int(* before_handle_connection_t) (Server_state_param *param) |
This is called just before the server is ready to accept the client connections to the Server/Node.
It marks the possible point where the server can be said to be ready to serve client queries.
[in] | param | Observer common parameter |
0 | Success |
>0 | Failure |
typedef int(* before_recovery_t) (Server_state_param *param) |
This callback is called before the start of the recovery.
[in] | param | Observer common parameter |
0 | Success |
>0 | Failure |
typedef int(* before_request_transmit_t) (Binlog_relay_IO_param *param, uint32 flags) |
This callback is called before slave requesting binlog transmission from master.
This is called before slave issuing BINLOG_DUMP command to master to request binlog.
param | Observer common parameter |
flags | binlog dump flags |
0 | Success |
1 | Failure |
typedef int(* before_rollback_t) (Trans_param *param) |
This callback is called before transaction rollback.
This callback is called before rollback to storage engines.
param | The parameter for transaction observers |
0 | Success |
1 | Failure |
typedef int(* before_send_event_t) (Binlog_transmit_param *param, unsigned char *packet, unsigned long len, const char *log_file, my_off_t log_pos) |
This callback is called before sending an event packet to slave.
param | Observer common parameter |
packet | Binlog event packet to send |
len | Length of the event packet |
log_file | Binlog file name of the event packet to send |
log_pos | Binlog position of the event packet to send |
0 | Success |
1 | Failure |
typedef int(* before_server_shutdown_t) (Server_state_param *param) |
This callback is called before the start of the shutdown procedure.
Can be useful to initiate some cleanup operations in some cases.
[in] | param | Observer common parameter |
0 | Success |
>0 | Failure |
typedef int(* begin_t) (Trans_param *param, int &out_val) |
This callback is called before a sql command is executed.
param | The parameter for transaction observers |
out_val | Return value from observer execution |
0 | Success |
1 | Failure |
typedef struct Binlog_relay_IO_observer Binlog_relay_IO_observer |
Observes and extends the service of slave IO thread.
typedef struct Binlog_relay_IO_param Binlog_relay_IO_param |
Replication binlog relay IO observer parameter.
typedef struct Binlog_storage_observer Binlog_storage_observer |
Observe binlog logging storage.
typedef struct Binlog_storage_param Binlog_storage_param |
Binlog storage observer parameters.
typedef struct Binlog_transmit_observer Binlog_transmit_observer |
Observe and extends the binlog dumping thread.
typedef struct Binlog_transmit_param Binlog_transmit_param |
Replication binlog transmitter (binlog dump) observer parameter.
typedef int(* reserve_header_t) (Binlog_transmit_param *param, unsigned char *header, unsigned long size, unsigned long *len) |
This callback is called to reserve bytes in packet header for event transmission.
This callback is called when resetting transmit packet header to reserve bytes for this observer in packet header.
The header buffer is allocated by the server code, and size is the size of the header buffer. Each observer can only reserve a maximum size of size in the header.
param | Observer common parameter |
header | Pointer of the header buffer |
size | Size of the header buffer |
len | Header length reserved by this observer |
0 | Success |
1 | Failure |
typedef struct Server_state_observer Server_state_observer |
Observer server state.
typedef struct Server_state_param Server_state_param |
typedef int(* thread_start_t) (Binlog_relay_IO_param *param) |
This callback is called when slave IO thread starts.
param | Observer common parameter |
0 | Success |
1 | Failure |
typedef int(* thread_stop_t) (Binlog_relay_IO_param *param) |
This callback is called when slave IO thread stops.
param | Observer common parameter |
0 | Success |
1 | Failure |
typedef struct Trans_context_info Trans_context_info |
This represents some of the context in which a transaction is running It summarizes all necessary requirements for Group Replication to work.
These requirements might be extracted in two different moments in time, and, as such, with different contexts:
Please refer to the place where information is extracted for more details about it.
typedef struct Trans_gtid_info Trans_gtid_info |
This represents the GTID context of the transaction.
typedef struct Trans_observer Trans_observer |
Observes and extends transaction execution.
typedef struct Trans_param Trans_param |
Transaction observer parameter.
typedef struct Trans_table_info Trans_table_info |
This represents table metadata involved in a transaction.
typedef int(* transmit_start_t) (Binlog_transmit_param *param, const char *log_file, my_off_t log_pos) |
This callback is called when binlog dumping starts.
param | Observer common parameter |
log_file | Binlog file name to transmit from |
log_pos | Binlog position to transmit from |
0 | Success |
1 | Failure |
typedef int(* transmit_stop_t) (Binlog_transmit_param *param) |
This callback is called when binlog dumping stops.
param | Observer common parameter |
0 | Success |
1 | Failure |
enum Binlog_storage_flags |
enum Trans_flags |
int get_user_var_int | ( | const char * | name, |
long long int * | value, | ||
int * | null_value | ||
) |
Get the value of user variable as an integer.
This function will return the value of variable name as an integer. If the original value of the variable is not an integer, the value will be converted into an integer.
name | user variable name |
value | pointer to return the value |
null_value | if not NULL, the function will set it to true if the value of variable is null, set to false if not |
0 | Success |
1 | Variable not found |
int get_user_var_real | ( | const char * | name, |
double * | value, | ||
int * | null_value | ||
) |
Get the value of user variable as a double precision float number.
This function will return the value of variable name as real number. If the original value of the variable is not a real number, the value will be converted into a real number.
name | user variable name |
value | pointer to return the value |
null_value | if not NULL, the function will set it to true if the value of variable is null, set to false if not |
0 | Success |
1 | Variable not found |
int get_user_var_str | ( | const char * | name, |
char * | value, | ||
size_t | len, | ||
unsigned int | precision, | ||
int * | null_value | ||
) |
Get the value of user variable as a string.
This function will return the value of variable name as string. If the original value of the variable is not a string, the value will be converted into a string.
name | user variable name |
value | pointer to the value buffer |
len | length of the value buffer |
precision | precision of the value if it is a float number |
null_value | if not NULL, the function will set it to true if the value of variable is null, set to false if not |
0 | Success |
1 | Variable not found |
int register_binlog_relay_io_observer | ( | Binlog_relay_IO_observer * | observer, |
void * | p | ||
) |
Register a binlog relay IO (slave IO thread) observer.
observer | The binlog relay IO observer to register |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer already exists |
int register_binlog_storage_observer | ( | Binlog_storage_observer * | observer, |
void * | p | ||
) |
Register a binlog storage observer.
observer | The binlog storage observer to register |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer already exists |
int register_binlog_transmit_observer | ( | Binlog_transmit_observer * | observer, |
void * | p | ||
) |
Register a binlog transmit observer.
observer | The binlog transmit observer to register |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer already exists |
int register_server_state_observer | ( | Server_state_observer * | observer, |
void * | p | ||
) |
Register a server state observer.
observer | The server state observer to register |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer already exists |
int register_trans_observer | ( | Trans_observer * | observer, |
void * | p | ||
) |
Register a transaction observer.
observer | The transaction observer to register |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer already exists |
void thd_enter_cond | ( | void * | opaque_thd, |
mysql_cond_t * | cond, | ||
mysql_mutex_t * | mutex, | ||
const PSI_stage_info * | stage, | ||
PSI_stage_info * | old_stage, | ||
const char * | src_function, | ||
const char * | src_file, | ||
int | src_line | ||
) |
Set thread entering a condition.
This function should be called before putting a thread to wait for a condition. mutex
should be held before calling this function. After being waken up, thd_exit_cond
should be called.
opaque_thd | The thread entering the condition, NULL means current thread |
cond | The condition the thread is going to wait for |
mutex | The mutex associated with the condition, this must be held before call this function |
stage | The new process message for the thread |
old_stage | The old process message for the thread |
src_function | The caller source function name |
src_file | The caller source file name |
src_line | The caller source line number |
void thd_exit_cond | ( | void * | opaque_thd, |
const PSI_stage_info * | stage, | ||
const char * | src_function, | ||
const char * | src_file, | ||
int | src_line | ||
) |
Set thread leaving a condition.
This function should be called after a thread being waken up for a condition.
opaque_thd | The thread entering the condition, NULL means current thread |
stage | The process message, usually this should be the old process message before calling thd_enter_cond |
src_function | The caller source function name |
src_file | The caller source file name |
src_line | The caller source line number |
int unregister_binlog_relay_io_observer | ( | Binlog_relay_IO_observer * | observer, |
void * | p | ||
) |
Unregister a binlog relay IO (slave IO thread) observer.
observer | The binlog relay IO observer to unregister |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer not exists |
int unregister_binlog_storage_observer | ( | Binlog_storage_observer * | observer, |
void * | p | ||
) |
Unregister a binlog storage observer.
observer | The binlog storage observer to unregister |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer not exists |
int unregister_binlog_transmit_observer | ( | Binlog_transmit_observer * | observer, |
void * | p | ||
) |
Unregister a binlog transmit observer.
observer | The binlog transmit observer to unregister |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer not exists |
int unregister_server_state_observer | ( | Server_state_observer * | observer, |
void * | p | ||
) |
Unregister a server state observer.
observer | The server state observer to unregister |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer not exists |
int unregister_trans_observer | ( | Trans_observer * | observer, |
void * | p | ||
) |
Unregister a transaction observer.
observer | The transaction observer to unregister |
p | pointer to the internal plugin structure |
0 | Success |
1 | Observer not exists |