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Diffstat (limited to 'storage/xtradb/include/mem0dbg.ic')
| -rw-r--r-- | storage/xtradb/include/mem0dbg.ic | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/storage/xtradb/include/mem0dbg.ic b/storage/xtradb/include/mem0dbg.ic new file mode 100644 index 00000000000..bf695fee785 --- /dev/null +++ b/storage/xtradb/include/mem0dbg.ic @@ -0,0 +1,109 @@ +/***************************************************************************** + +Copyright (c) 1994, 2009, Innobase Oy. 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., 59 Temple +Place, Suite 330, Boston, MA 02111-1307 USA + +*****************************************************************************/ + +/************************************************************************ +The memory management: the debug code. This is not an independent +compilation module but is included in mem0mem.*. + +Created 6/8/1994 Heikki Tuuri +*************************************************************************/ + +#ifdef UNIV_MEM_DEBUG +extern mutex_t mem_hash_mutex; +extern ulint mem_current_allocated_memory; + +/********************************************************************** +Initializes an allocated memory field in the debug version. */ +UNIV_INTERN +void +mem_field_init( +/*===========*/ + byte* buf, /* in: memory field */ + ulint n); /* in: how many bytes the user requested */ +/********************************************************************** +Erases an allocated memory field in the debug version. */ +UNIV_INTERN +void +mem_field_erase( +/*============*/ + byte* buf, /* in: memory field */ + ulint n); /* in: how many bytes the user requested */ +/******************************************************************* +Initializes a buffer to a random combination of hex BA and BE. +Used to initialize allocated memory. */ +UNIV_INTERN +void +mem_init_buf( +/*=========*/ + byte* buf, /* in: pointer to buffer */ + ulint n); /* in: length of buffer */ +/******************************************************************* +Initializes a buffer to a random combination of hex DE and AD. +Used to erase freed memory.*/ +UNIV_INTERN +void +mem_erase_buf( +/*==========*/ + byte* buf, /* in: pointer to buffer */ + ulint n); /* in: length of buffer */ +/******************************************************************* +Inserts a created memory heap to the hash table of +current allocated memory heaps. +Initializes the hash table when first called. */ +UNIV_INTERN +void +mem_hash_insert( +/*============*/ + mem_heap_t* heap, /* in: the created heap */ + const char* file_name, /* in: file name of creation */ + ulint line); /* in: line where created */ +/******************************************************************* +Removes a memory heap (which is going to be freed by the caller) +from the list of live memory heaps. Returns the size of the heap +in terms of how much memory in bytes was allocated for the user of +the heap (not the total space occupied by the heap). +Also validates the heap. +NOTE: This function does not free the storage occupied by the +heap itself, only the node in the list of heaps. */ +UNIV_INTERN +void +mem_hash_remove( +/*============*/ + mem_heap_t* heap, /* in: the heap to be freed */ + const char* file_name, /* in: file name of freeing */ + ulint line); /* in: line where freed */ + + +void +mem_field_header_set_len(byte* field, ulint len); + +ulint +mem_field_header_get_len(byte* field); + +void +mem_field_header_set_check(byte* field, ulint check); + +ulint +mem_field_header_get_check(byte* field); + +void +mem_field_trailer_set_check(byte* field, ulint check); + +ulint +mem_field_trailer_get_check(byte* field); +#endif /* UNIV_MEM_DEBUG */ |