diff options
Diffstat (limited to 'storage/xtradb/include/mem0mem.h')
| -rw-r--r-- | storage/xtradb/include/mem0mem.h | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/storage/xtradb/include/mem0mem.h b/storage/xtradb/include/mem0mem.h index 7dff3e7a2b8..c36ef06b554 100644 --- a/storage/xtradb/include/mem0mem.h +++ b/storage/xtradb/include/mem0mem.h @@ -1,6 +1,6 @@ /***************************************************************************** -Copyright (c) 1994, 2010, Innobase Oy. All Rights Reserved. +Copyright (c) 1994, 2010, 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 @@ -11,8 +11,8 @@ 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 02110-1301 USA +this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA *****************************************************************************/ @@ -38,15 +38,12 @@ Created 6/9/1994 Heikki Tuuri /* -------------------- MEMORY HEAPS ----------------------------- */ -/* The info structure stored at the beginning of a heap block */ -typedef struct mem_block_info_struct mem_block_info_t; - /* A block of a memory heap consists of the info structure followed by an area of memory */ -typedef mem_block_info_t mem_block_t; +typedef struct mem_block_info_t mem_block_t; /* A memory heap is a nonempty linear list of memory blocks */ -typedef mem_block_t mem_heap_t; +typedef mem_block_t mem_heap_t; /* Types of allocation for memory heaps: DYNAMIC means allocation from the dynamic memory pool of the C compiler, BUFFER means allocation from the @@ -62,6 +59,12 @@ buffer pool; the latter method is used for very big heaps */ allocation functions can return NULL. */ +/* Different type of heaps in terms of which datastructure is using them */ +#define MEM_HEAP_FOR_BTR_SEARCH (MEM_HEAP_BTR_SEARCH | MEM_HEAP_BUFFER) +#define MEM_HEAP_FOR_PAGE_HASH (MEM_HEAP_DYNAMIC) +#define MEM_HEAP_FOR_RECV_SYS (MEM_HEAP_BUFFER) +#define MEM_HEAP_FOR_LOCK_HEAP (MEM_HEAP_BUFFER) + /* The following start size is used for the first block in the memory heap if the size is not specified, i.e., 0 is given as the parameter in the call of create. The standard size is the maximum (payload) size of the blocks used for @@ -99,16 +102,8 @@ heap creation. */ Use this macro instead of the corresponding function! Macro for memory heap creation. */ -#define mem_heap_create_in_buffer(N) mem_heap_create_func(\ - (N), MEM_HEAP_BUFFER, __FILE__, __LINE__) -/**************************************************************//** -Use this macro instead of the corresponding function! Macro for memory -heap creation. */ - -#define mem_heap_create_in_btr_search(N) mem_heap_create_func(\ - (N), MEM_HEAP_BTR_SEARCH | MEM_HEAP_BUFFER,\ - __FILE__, __LINE__) - +#define mem_heap_create_typed(N, T) mem_heap_create_func(\ + (N), (T), __FILE__, __LINE__) /**************************************************************//** Use this macro instead of the corresponding function! Macro for memory heap freeing. */ @@ -221,7 +216,7 @@ mem_heap_get_size( Use this macro instead of the corresponding function! Macro for memory buffer allocation */ -#define mem_zalloc(N) memset(mem_alloc(N), 0, (N)); +#define mem_zalloc(N) memset(mem_alloc(N), 0, (N)) #define mem_alloc(N) mem_alloc_func((N), NULL, __FILE__, __LINE__) #define mem_alloc2(N,S) mem_alloc_func((N), (S), __FILE__, __LINE__) @@ -320,7 +315,7 @@ mem_heap_dup( ulint len); /*!< in: length of data, in bytes */ /****************************************************************//** -A simple (s)printf replacement that dynamically allocates the space for the +A simple sprintf replacement that dynamically allocates the space for the formatted string from the given heap. This supports a very limited set of the printf syntax: types 's' and 'u' and length modifier 'l' (which is required for the 'u' type). @@ -345,9 +340,8 @@ mem_validate_all_blocks(void); /*#######################################################################*/ -/* The info header of a block in a memory heap */ - -struct mem_block_info_struct { +/** The info structure stored at the beginning of a heap block */ +struct mem_block_info_t { ulint magic_n;/* magic number for debugging */ char file_name[8];/* file name where the mem heap was created */ ulint line; /*!< line number where the mem heap was created */ |