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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
commita175314c3e5827eb193872241446f2f8f5c9d33c (patch)
treecd3d60ca99ae00829c52a6ca79150a5b6e62528b /include/thread_pool_priv.h
parentInitial commit. (diff)
downloadmariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.tar.xz
mariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.zip
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/thread_pool_priv.h')
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1 files changed, 109 insertions, 0 deletions
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+#error don't use
+/*
+ Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA
+*/
+
+#ifndef THREAD_POOL_PRIV_INCLUDED
+#define THREAD_POOL_PRIV_INCLUDED
+
+/*
+ The thread pool requires access to some MySQL server error codes, this is
+ accessed from mysqld_error.h.
+ We need access to the struct that defines the thread pool plugin interface
+ which is accessed through scheduler.h.
+ All accesses to THD variables and functions are defined in this header file.
+ A thread pool can also use DEBUG_SYNC and must thus include
+ debug_sync.h
+ To handle definitions of Information Schema plugins it is also required
+ to include sql_profile.h and table.h.
+*/
+#include <mysqld_error.h> /* To get ER_ERROR_ON_READ */
+#define MYSQL_SERVER 1
+#include <scheduler.h>
+#include <debug_sync.h>
+#include <sql_profile.h>
+#include <table.h>
+#include <sql_list.h>
+
+/* Interface to THD variables and functions */
+void thd_set_killed(THD *thd);
+void thd_clear_errors(THD *thd);
+void thd_set_thread_stack(THD *thd, char *stack_start);
+void thd_lock_thread_count(THD *thd);
+void thd_close_connection(THD *thd);
+THD *thd_get_current_thd();
+void thd_lock_data(THD *thd);
+void thd_unlock_data(THD *thd);
+bool thd_is_transaction_active(THD *thd);
+int thd_connection_has_data(THD *thd);
+void thd_set_net_read_write(THD *thd, uint val);
+uint thd_get_net_read_write(THD *thd);
+void thd_set_mysys_var(THD *thd, st_my_thread_var *mysys_var);
+my_socket thd_get_fd(THD *thd);
+int thd_store_globals(THD* thd);
+
+/* Print to the MySQL error log */
+void sql_print_error(const char *format, ...);
+
+/* Store a table record */
+bool schema_table_store_record(THD *thd, TABLE *table);
+
+/*
+ The thread pool must be able to execute statements using the connection
+ state in THD object. This is the main objective of the thread pool to
+ schedule the start of these commands.
+*/
+bool do_command(THD *thd);
+
+/*
+ The thread pool requires an interface to the connection logic in the
+ MySQL Server since the thread pool will maintain the event logic on
+ the TCP connection of the MySQL Server. Thus new connections, dropped
+ connections will be discovered by the thread pool and it needs to
+ ensure that the proper MySQL Server logic attached to these events is
+ executed.
+*/
+/* Set up connection thread before use as execution thread */
+bool setup_connection_thread_globals(THD *thd);
+/* Prepare connection as part of connection set-up */
+bool thd_prepare_connection(THD *thd);
+/* Release auditing before executing statement */
+void mysql_audit_release(THD *thd);
+/* Check if connection is still alive */
+bool thd_is_connection_alive(THD *thd);
+/* Close connection with possible error code */
+void close_connection(THD *thd, uint errcode);
+/* Destroy THD object */
+void delete_thd(THD *thd);
+
+/*
+ thread_created is maintained by thread pool when activated since
+ user threads are created by the thread pool (and also special
+ threads to maintain the thread pool). This is done through
+ inc_thread_created.
+
+ max_connections is needed to calculate the maximum number of threads
+ that is allowed to be started by the thread pool. The method
+ get_max_connections() gets reference to this variable.
+
+ connection_attrib is the thread attributes for connection threads,
+ the method get_connection_attrib provides a reference to these
+ attributes.
+*/
+void inc_thread_created(void);
+ulong get_max_connections(void);
+pthread_attr_t *get_connection_attrib(void);
+#endif