mirror of
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89685d55d7
- To ensure that mallocs are marked for the correct THD, even if it's allocated in another thread, I added the thread_id to the THD constructor - Added st_my_thread_var to thr_lock_info_init() to avoid a call to my_thread_var - Moved things from THD::THD() to THD::init() - Moved some things to THD::cleanup() - Added THD::free_connection() and THD::reset_for_reuse() - Added THD to CONNECT::create_thd() - Added THD::thread_dbug_id and st_my_thread_var->dbug_id. These are needed to ensure that we have a constant thread_id used for debugging with a THD, even if it changes thread_id (=connection_id) - Set variables.pseudo_thread_id in constructor. Removed not needed sets.
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/* Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef SQL_CONNECT_INCLUDED
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#define SQL_CONNECT_INCLUDED
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#include "my_sys.h" /* pthread_handler_t */
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#include "mysql_com.h" /* enum_server_command */
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#include "structs.h"
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#include <mysql/psi/mysql_socket.h>
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#include <hash.h>
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/*
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Object to hold connect information to be given to the newly created thread
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*/
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struct scheduler_functions;
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class CONNECT : public ilink {
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public:
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/* To be copied to THD */
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Vio *vio; /* Copied to THD with my_net_init() */
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const char *host;
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scheduler_functions *scheduler;
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my_thread_id thread_id;
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pthread_t real_id;
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bool extra_port;
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/* Own variables */
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bool thread_count_incremented;
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ulonglong prior_thr_create_utime;
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CONNECT()
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:vio(0), host(0), scheduler(thread_scheduler), thread_id(0), real_id(0),
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extra_port(0),
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thread_count_incremented(0), prior_thr_create_utime(0)
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{
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};
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~CONNECT();
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void close_and_delete();
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void close_with_error(uint sql_errno,
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const char *message, uint close_error);
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THD *create_thd(THD *thd);
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};
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class THD;
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typedef struct st_lex_user LEX_USER;
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typedef struct user_conn USER_CONN;
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void init_max_user_conn(void);
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void init_global_user_stats(void);
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void init_global_table_stats(void);
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void init_global_index_stats(void);
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void init_global_client_stats(void);
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void free_max_user_conn(void);
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void free_global_user_stats(void);
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void free_global_table_stats(void);
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void free_global_index_stats(void);
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void free_global_client_stats(void);
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pthread_handler_t handle_one_connection(void *arg);
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void do_handle_one_connection(CONNECT *connect);
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bool init_new_connection_handler_thread();
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void reset_mqh(LEX_USER *lu, bool get_them);
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bool check_mqh(THD *thd, uint check_command);
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void time_out_user_resource_limits(THD *thd, USER_CONN *uc);
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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void decrease_user_connections(USER_CONN *uc);
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#else
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#define decrease_user_connections(X) do { } while(0) /* nothing */
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#endif
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bool thd_init_client_charset(THD *thd, uint cs_number);
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bool setup_connection_thread_globals(THD *thd);
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bool thd_prepare_connection(THD *thd);
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bool thd_is_connection_alive(THD *thd);
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bool login_connection(THD *thd);
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void prepare_new_connection_state(THD* thd);
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void end_connection(THD *thd);
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void update_global_user_stats(THD* thd, bool create_user, time_t now);
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int get_or_create_user_conn(THD *thd, const char *user,
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const char *host, const USER_RESOURCES *mqh);
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int check_for_max_user_connections(THD *thd, USER_CONN *uc);
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extern HASH global_user_stats;
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extern HASH global_client_stats;
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extern HASH global_table_stats;
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extern HASH global_index_stats;
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extern mysql_mutex_t LOCK_global_user_client_stats;
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extern mysql_mutex_t LOCK_global_table_stats;
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extern mysql_mutex_t LOCK_global_index_stats;
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extern mysql_mutex_t LOCK_stats;
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#endif /* SQL_CONNECT_INCLUDED */
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