diff options
Diffstat (limited to 'storage/xtradb/include/srv0conc.h')
| -rw-r--r-- | storage/xtradb/include/srv0conc.h | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/storage/xtradb/include/srv0conc.h b/storage/xtradb/include/srv0conc.h deleted file mode 100644 index cf61ef5528d..00000000000 --- a/storage/xtradb/include/srv0conc.h +++ /dev/null @@ -1,111 +0,0 @@ -/***************************************************************************** - -Copyright (c) 2011, 2012, Oracle and/or its affiliates. All Rights Reserved. - -Portions of this file contain modifications contributed and copyrighted by -Google, Inc. Those modifications are gratefully acknowledged and are described -briefly in the InnoDB documentation. The contributions by Google are -incorporated with their permission, and subject to the conditions contained in -the file COPYING.Google. - -Portions of this file contain modifications contributed and copyrighted -by Percona Inc.. Those modifications are -gratefully acknowledged and are described briefly in the InnoDB -documentation. The contributions by Percona Inc. are incorporated with -their permission, and subject to the conditions contained in the file -COPYING.Percona. - -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 Street, Suite 500, Boston, MA 02110-1335 USA - -*****************************************************************************/ - -/**************************************************//** -@file srv/srv0conc.h - -InnoDB concurrency manager header file - -Created 2011/04/18 Sunny Bains -*******************************************************/ - -#ifndef srv_conc_h -#define srv_conc_h - -/** We are prepared for a situation that we have this many threads waiting for -a semaphore inside InnoDB. innobase_start_or_create_for_mysql() sets the -value. */ - -extern ulint srv_max_n_threads; - -/** The following controls how many threads we let inside InnoDB concurrently: -threads waiting for locks are not counted into the number because otherwise -we could get a deadlock. Value of 0 will disable the concurrency check. */ - -extern ulong srv_thread_concurrency; - -/*********************************************************************//** -Initialise the concurrency management data structures */ -void -srv_conc_init(void); -/*===============*/ - -/*********************************************************************//** -Free the concurrency management data structures */ -void -srv_conc_free(void); -/*===============*/ - -/*********************************************************************//** -Puts an OS thread to wait if there are too many concurrent threads -(>= srv_thread_concurrency) inside InnoDB. The threads wait in a FIFO queue. */ -UNIV_INTERN -void -srv_conc_enter_innodb( -/*==================*/ - trx_t* trx); /*!< in: transaction object associated - with the thread */ - -/*********************************************************************//** -This lets a thread enter InnoDB regardless of the number of threads inside -InnoDB. This must be called when a thread ends a lock wait. */ -UNIV_INTERN -void -srv_conc_force_enter_innodb( -/*========================*/ - trx_t* trx); /*!< in: transaction object associated with - the thread */ - -/*********************************************************************//** -This must be called when a thread exits InnoDB in a lock wait or at the -end of an SQL statement. */ -UNIV_INTERN -void -srv_conc_force_exit_innodb( -/*=======================*/ - trx_t* trx); /*!< in: transaction object associated with - the thread */ - -/*********************************************************************//** -Get the count of threads waiting inside InnoDB. */ -UNIV_INTERN -ulint -srv_conc_get_waiting_threads(void); -/*==============================*/ - -/*********************************************************************//** -Get the count of threads active inside InnoDB. */ -UNIV_INTERN -ulint -srv_conc_get_active_threads(void); -/*==============================*/ - -#endif /* srv_conc_h */ |