diff options
Diffstat (limited to 'storage/xtradb/include/buf0rea.h')
| -rw-r--r-- | storage/xtradb/include/buf0rea.h | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/storage/xtradb/include/buf0rea.h b/storage/xtradb/include/buf0rea.h index f0652b5d2cd..ab73108a71e 100644 --- a/storage/xtradb/include/buf0rea.h +++ b/storage/xtradb/include/buf0rea.h @@ -1,7 +1,7 @@ /***************************************************************************** Copyright (c) 1995, 2013, Oracle and/or its affiliates. All Rights Reserved. -Copyright (c) 2015, MariaDB Corporation. +Copyright (c) 2015, 2017, MariaDB Corporation. 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 @@ -35,29 +35,37 @@ High-level function which reads a page asynchronously from a file to the buffer buf_pool if it is not already there. Sets the io_fix flag and sets an exclusive lock on the buffer frame. The flag is cleared and the x-lock released by the i/o-handler thread. -@return TRUE if page has been read in, FALSE in case of failure */ + +@param[in] space space_id +@param[in] zip_size compressed page size in bytes, or 0 +@param[in] offset page number +@param[in] trx transaction +@return DB_SUCCESS if page has been read and is not corrupted, +@retval DB_PAGE_CORRUPTED if page based on checksum check is corrupted, +@retval DB_DECRYPTION_FAILED if page post encryption checksum matches but +after decryption normal page checksum does not match. +@retval DB_TABLESPACE_DELETED if tablespace .ibd file is missing */ UNIV_INTERN -ibool +dberr_t buf_read_page( -/*==========*/ - ulint space, /*!< in: space id */ - ulint zip_size, /*!< in: compressed page size in bytes, or 0 */ - ulint offset, /*!< in: page number */ - trx_t* trx, /*!< in: trx */ - buf_page_t** bpage /*!< out: page */ -); + ulint space, + ulint zip_size, + ulint offset, + trx_t* trx); + /********************************************************************//** High-level function which reads a page asynchronously from a file to the buffer buf_pool if it is not already there. Sets the io_fix flag and sets an exclusive lock on the buffer frame. The flag is cleared and the x-lock released by the i/o-handler thread. -@return TRUE if page has been read in, FALSE in case of failure */ +@param[in] space Tablespace id +@param[in] offset Page number */ UNIV_INTERN -ibool +void buf_read_page_async( -/*================*/ - ulint space, /*!< in: space id */ - ulint offset);/*!< in: page number */ + ulint space, + ulint offset); + /********************************************************************//** Applies a random read-ahead in buf_pool if there are at least a threshold value of accessed pages from the random read-ahead area. Does not read any |