srv_session.cc File Reference

class Srv_session implementation. More...

#include "sql/srv_session.h"
#include <stddef.h>
#include <stdio.h>
#include <sys/types.h>
#include <atomic>
#include <list>
#include <map>
#include <new>
#include <utility>
#include "lex_string.h"
#include "m_string.h"
#include "mutex_lock.h"
#include "my_dbug.h"
#include "my_inttypes.h"
#include "my_macros.h"
#include "my_psi_config.h"
#include "my_thread.h"
#include "my_thread_local.h"
#include "mysql.h"
#include "mysql/components/my_service.h"
#include "mysql/components/services/bits/mysql_mutex_bits.h"
#include "mysql/components/services/bits/mysql_rwlock_bits.h"
#include "mysql/components/services/bits/psi_bits.h"
#include "mysql/components/services/bits/psi_mutex_bits.h"
#include "mysql/components/services/bits/psi_rwlock_bits.h"
#include "mysql/components/services/log_builtins.h"
#include "mysql/my_loglevel.h"
#include "mysql/plugin_audit.h"
#include "mysql/psi/mysql_mutex.h"
#include "mysql/psi/mysql_rwlock.h"
#include "mysql/psi/mysql_statement.h"
#include "mysql/strings/m_ctype.h"
#include "mysql_time.h"
#include "mysqld_error.h"
#include "nulls.h"
#include "pfs_thread_provider.h"
#include "rwlock_scoped_lock.h"
#include "sql/auth/sql_security_ctx.h"
#include "sql/conn_handler/connection_handler_manager.h"
#include "sql/current_thd.h"
#include "sql/debug_sync.h"
#include "sql/derror.h"
#include "sql/log.h"
#include "sql/mysqld.h"
#include "sql/mysqld_thd_manager.h"
#include "sql/sql_audit.h"
#include "sql/sql_base.h"
#include "sql/sql_class.h"
#include "sql/sql_connect.h"
#include "sql/sql_list.h"
#include "sql/sql_parse.h"
#include "sql/sql_plugin_ref.h"
#include "sql/sql_thd_internal_api.h"
#include "sql/system_variables.h"
#include "thr_mutex.h"

Classes
class	Thread_to_plugin_map
class	Mutexed_map_thd_srv_session
	std::map of THD* as key and Srv_session* as value guarded by a read-write lock. More...
class	Mutexed_map_thd_srv_session::Do_Impl

Functions
void	thd_clear_errors (THD *thd)
	Clear errors from the previous THD. More...
static int	err_start_result_metadata (void *, uint, uint, const CHARSET_INFO *)
static int	err_field_metadata (void *, struct st_send_field *, const CHARSET_INFO *)
static int	err_end_result_metadata (void *, uint, uint)
static int	err_start_row (void *)
static int	err_end_row (void *)
static void	err_abort_row (void *)
static ulong	err_get_client_capabilities (void *)
static int	err_get_null (void *)
static int	err_get_integer (void *, longlong)
static int	err_get_longlong (void *, longlong, uint)
static int	err_get_decimal (void *, const decimal_t *)
static int	err_get_double (void *, double, uint32)
static int	err_get_date (void *, const MYSQL_TIME *)
static int	err_get_time (void *, const MYSQL_TIME *, uint)
static int	err_get_datetime (void *, const MYSQL_TIME *, uint)
static int	err_get_string (void *, const char *, size_t, const CHARSET_INFO *)
static void	err_handle_ok (void *ctx, uint server_status, uint warn_count, ulonglong affected_rows, ulonglong last_insert_id, const char *const)
static void	err_handle_error (void *ctx, uint err_errno, const char *err_msg, const char *)
static void	err_shutdown (void *, int)
static bool	err_alive (void *)
static void	set_psi (THD *thd)
	Modifies the PSI structures to (de)install a THD. More...
static void	close_currently_attached_session_if_any (const st_plugin_int *plugin)
	Looks if there is currently attached session and detaches it. More...
static void	close_all_sessions_of_plugin_if_any (const st_plugin_int *plugin)
	Looks if the plugin has any non-closed sessions and closes them forcefully. More...
static void	set_client_port_in_thd (THD *thd, uint16_t *input)
	Callback for inspecting a THD object and modifying the peer_port member. More...

Variables
static thread_local const char *	THR_stack_start_address = nullptr
static thread_local const st_plugin_int *	THR_srv_session_thread = nullptr
static bool	srv_session_THRs_initialized = false
static Mutexed_map_thd_srv_session	server_session_list
static Thread_to_plugin_map	server_session_threads
const struct st_command_service_cbs	error_protocol_callbacks

Detailed Description

class Srv_session implementation.

See the method comments for more. Please, check also srv_session.h for more information.

Function Documentation

close_all_sessions_of_plugin_if_any()

static void close_all_sessions_of_plugin_if_any ( const st_plugin_int *  plugin )

static

Looks if the plugin has any non-closed sessions and closes them forcefully.

Parameters

plugin

The plugin to be checked

close_currently_attached_session_if_any()

static void close_currently_attached_session_if_any ( const st_plugin_int *  plugin )

static

Looks if there is currently attached session and detaches it.

Parameters

plugin

The plugin to be checked

err_abort_row()

static void err_abort_row ( void *  )

static

err_alive()

static bool err_alive ( void *  )

static

err_end_result_metadata()

static int err_end_result_metadata ( void *  , uint  , uint    )

static

err_end_row()

static int err_end_row ( void *  )

static

err_field_metadata()

static int err_field_metadata ( void *  , struct st_send_field *  , const CHARSET_INFO *    )

static

err_get_client_capabilities()

static ulong err_get_client_capabilities ( void *  )

static

err_get_date()

static int err_get_date ( void *  , const MYSQL_TIME *    )

static

err_get_datetime()

static int err_get_datetime ( void *  , const MYSQL_TIME *  , uint    )

static

err_get_decimal()

static int err_get_decimal ( void *  , const decimal_t *    )

static

err_get_double()

static int err_get_double ( void *  , double  , uint32    )

static

err_get_integer()

static int err_get_integer ( void *  , longlong    )

static

err_get_longlong()

static int err_get_longlong ( void *  , longlong  , uint    )

static

err_get_null()

static int err_get_null ( void *  )

static

err_get_string()

static int err_get_string ( void *  , const char *  , size_t  , const CHARSET_INFO *    )

static

err_get_time()

static int err_get_time ( void *  , const MYSQL_TIME *  , uint    )

static

err_handle_error()

static void err_handle_error ( void *  ctx, uint  err_errno, const char *  err_msg, const char *    )

static

err_handle_ok()

static void err_handle_ok ( void *  ctx, uint  server_status, uint  warn_count, ulonglong  affected_rows, ulonglong  last_insert_id, const char * const    )

static

err_shutdown()

static void err_shutdown ( void *  , int    )

static

err_start_result_metadata()

static int err_start_result_metadata ( void *  , uint  , uint  , const CHARSET_INFO *    )

static

err_start_row()

static int err_start_row ( void *  )

static

set_client_port_in_thd()

static void set_client_port_in_thd ( THD *  thd, uint16_t *  input  )

static

Callback for inspecting a THD object and modifying the peer_port member.

set_psi()

static void set_psi ( THD *  thd )

static

Modifies the PSI structures to (de)install a THD.

Parameters

thd

THD

thd_clear_errors()

void thd_clear_errors

(

THD *

thd

)

Clear errors from the previous THD.

Parameters

thd	THD object

Variable Documentation

error_protocol_callbacks

const struct st_command_service_cbs error_protocol_callbacks

Initial value:

= {
    err_start_result_metadata,
    err_field_metadata,
    err_end_result_metadata,
    err_start_row,
    err_end_row,
    err_abort_row,
    err_get_client_capabilities,
    err_get_null,
    err_get_integer,
    err_get_longlong,
    err_get_decimal,
    err_get_double,
    err_get_date,
    err_get_time,
    err_get_datetime,
    err_get_string,
    err_handle_ok,
    err_handle_error,
    err_shutdown,
    err_alive}

server_session_list

Mutexed_map_thd_srv_session server_session_list

static

server_session_threads

Thread_to_plugin_map server_session_threads

static

srv_session_THRs_initialized

bool srv_session_THRs_initialized = false

static

THR_srv_session_thread

thread_local const st_plugin_int* THR_srv_session_thread = nullptr

static

THR_stack_start_address

thread_local const char* THR_stack_start_address = nullptr

static