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715e4f4320
Bind more InnoDB parameters directly to MYSQL_SYSVAR and remove "shadow variables". innodb_change_buffering: Declare as ENUM, not STRING. innodb_flush_method: Declare as ENUM, not STRING. innodb_log_buffer_size: Bind directly to srv_log_buffer_size, without rounding it to a multiple of innodb_page_size. LOG_BUFFER_SIZE: Remove. SysTablespace::normalize_size(): Renamed from normalize(). innodb_init_params(): A new function to initialize and validate InnoDB startup parameters. innodb_init(): Renamed from innobase_init(). Invoke innodb_init_params() before actually trying to start up InnoDB. srv_start(bool): Renamed from innobase_start_or_create_for_mysql(). Added the input parameter create_new_db. SRV_ALL_O_DIRECT_FSYNC: Define only for _WIN32. xb_normalize_init_values(): Merge to innodb_init_param().
135 lines
4.5 KiB
C
135 lines
4.5 KiB
C
/*****************************************************************************
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Copyright (c) 1995, 2017, Oracle and/or its affiliates. All Rights Reserved.
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Copyright (c) 2017, MariaDB Corporation.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/srv0start.h
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Starts the Innobase database server
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Created 10/10/1995 Heikki Tuuri
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*******************************************************/
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#ifndef srv0start_h
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#define srv0start_h
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#include "univ.i"
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#include "log0log.h"
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#include "ut0byte.h"
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// Forward declaration
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struct dict_table_t;
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/** If buffer pool is less than the size,
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only one buffer pool instance is used. */
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#define BUF_POOL_SIZE_THRESHOLD (1024 * 1024 * 1024)
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/** Open the configured number of dedicated undo tablespaces.
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@param[in] create_new_db whether the database is being initialized
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@return DB_SUCCESS or error code */
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dberr_t
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srv_undo_tablespaces_init(bool create_new_db);
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/** Start InnoDB.
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@param[in] create_new_db whether to create a new database
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@return DB_SUCCESS or error code */
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dberr_t srv_start(bool create_new_db);
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/** Shut down InnoDB. */
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void innodb_shutdown();
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/** Shut down background threads that can generate undo log. */
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void srv_shutdown_bg_undo_sources();
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/*************************************************************//**
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Copy the file path component of the physical file to parameter. It will
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copy up to and including the terminating path separator.
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@return number of bytes copied or ULINT_UNDEFINED if destination buffer
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is smaller than the path to be copied. */
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ulint
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srv_path_copy(
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/*==========*/
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char* dest, /*!< out: destination buffer */
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ulint dest_len, /*!< in: max bytes to copy */
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const char* basedir, /*!< in: base directory */
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const char* table_name) /*!< in: source table name */
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MY_ATTRIBUTE((nonnull, warn_unused_result));
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/** Get the meta-data filename from the table name for a
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single-table tablespace.
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@param[in] table table object
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@param[out] filename filename
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@param[in] max_len filename max length */
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void
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srv_get_meta_data_filename(
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dict_table_t* table,
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char* filename,
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ulint max_len);
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/** Get the encryption-data filename from the table name for a
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single-table tablespace.
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@param[in] table table object
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@param[out] filename filename
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@param[in] max_len filename max length */
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void
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srv_get_encryption_data_filename(
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dict_table_t* table,
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char* filename,
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ulint max_len);
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/** Log sequence number at shutdown */
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extern lsn_t srv_shutdown_lsn;
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/** Log sequence number immediately after startup */
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extern lsn_t srv_start_lsn;
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/** TRUE if the server is being started */
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extern bool srv_is_being_started;
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/** TRUE if SYS_TABLESPACES is available for lookups */
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extern bool srv_sys_tablespaces_open;
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/** TRUE if the server is being started, before rolling back any
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incomplete transactions */
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extern bool srv_startup_is_before_trx_rollback_phase;
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/** TRUE if a raw partition is in use */
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extern ibool srv_start_raw_disk_in_use;
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/** Shutdown state */
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enum srv_shutdown_t {
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SRV_SHUTDOWN_NONE = 0, /*!< Database running normally */
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SRV_SHUTDOWN_CLEANUP, /*!< Cleaning up in
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logs_empty_and_mark_files_at_shutdown() */
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SRV_SHUTDOWN_FLUSH_PHASE,/*!< At this phase the master and the
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purge threads must have completed their
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work. Once we enter this phase the
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page_cleaner can clean up the buffer
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pool and exit */
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SRV_SHUTDOWN_LAST_PHASE,/*!< Last phase after ensuring that
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the buffer pool can be freed: flush
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all file spaces and close all files */
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SRV_SHUTDOWN_EXIT_THREADS/*!< Exit all threads */
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};
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/** Whether any undo log records can be generated */
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extern bool srv_undo_sources;
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/** At a shutdown this value climbs from SRV_SHUTDOWN_NONE to
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SRV_SHUTDOWN_CLEANUP and then to SRV_SHUTDOWN_LAST_PHASE, and so on */
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extern enum srv_shutdown_t srv_shutdown_state;
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/** Files comprising the system tablespace */
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extern pfs_os_file_t files[1000];
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#endif
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