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122 lines
4 KiB
C++
122 lines
4 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 02110-1335 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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#include "violite.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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MYSQL_SOCKET sock;
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#ifdef _WIN32
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HANDLE pipe;
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CONNECT(HANDLE pipe_arg): pipe(pipe_arg), vio_type(VIO_TYPE_NAMEDPIPE),
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scheduler(thread_scheduler), thread_id(0), prior_thr_create_utime(0)
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{
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count++;
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}
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#endif
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enum enum_vio_type vio_type;
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scheduler_functions *scheduler;
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my_thread_id thread_id;
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/* Own variables */
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ulonglong prior_thr_create_utime;
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static Atomic_counter<uint32_t> count;
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CONNECT(MYSQL_SOCKET sock_arg, enum enum_vio_type vio_type_arg,
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scheduler_functions *scheduler_arg): sock(sock_arg),
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vio_type(vio_type_arg), scheduler(scheduler_arg), thread_id(0),
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prior_thr_create_utime(0)
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{
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count++;
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}
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~CONNECT()
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{
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count--;
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DBUG_ASSERT(vio_type == VIO_CLOSED);
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}
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void close_and_delete(uint err);
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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 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, bool put_in_cache);
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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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void 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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int thd_set_peer_addr(THD *thd, sockaddr_storage *addr,
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const char *ip, uint port,
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bool check_proxy_networks,
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uint *host_errors);
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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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