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symbols. Use it for all definitions of non-static variables and functions. lexyy.c, make_flex.sh: Declare yylex as UNIV_INTERN, not static. It is referenced from pars0grm.c. Actually, according to nm .libs/ha_innodb.so|grep -w '[ABCE-TVXYZ]' the following symbols are still global: * The vtable for class ha_innodb * pars0grm.c: The function yyparse() and the variables yychar, yylval, yynerrs The required changes to the Bison-generated file pars0grm.c will be addressed in a separate commit, which will add a script similar to make_flex.sh. The class ha_innodb is renamed from class ha_innobase by a #define. Thus, there will be no clash with the builtin InnoDB. However, there will be some overhead for invoking virtual methods of class ha_innodb. Ideas for making the vtable hidden are welcome. -fvisibility=hidden is not available in GCC 3.
93 lines
2.9 KiB
Text
93 lines
2.9 KiB
Text
/************************************************************************
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The memory management: the debug code. This is not an independent
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compilation module but is included in mem0mem.*.
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(c) 1994, 1995 Innobase Oy
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Created 6/8/1994 Heikki Tuuri
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*************************************************************************/
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#ifdef UNIV_MEM_DEBUG
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extern mutex_t mem_hash_mutex;
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extern ulint mem_current_allocated_memory;
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/**********************************************************************
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Initializes an allocated memory field in the debug version. */
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UNIV_INTERN
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void
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mem_field_init(
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/*===========*/
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byte* buf, /* in: memory field */
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ulint n); /* in: how many bytes the user requested */
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/**********************************************************************
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Erases an allocated memory field in the debug version. */
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UNIV_INTERN
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void
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mem_field_erase(
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/*============*/
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byte* buf, /* in: memory field */
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ulint n); /* in: how many bytes the user requested */
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/*******************************************************************
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Initializes a buffer to a random combination of hex BA and BE.
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Used to initialize allocated memory. */
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UNIV_INTERN
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void
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mem_init_buf(
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/*=========*/
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byte* buf, /* in: pointer to buffer */
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ulint n); /* in: length of buffer */
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/*******************************************************************
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Initializes a buffer to a random combination of hex DE and AD.
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Used to erase freed memory.*/
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UNIV_INTERN
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void
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mem_erase_buf(
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/*==========*/
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byte* buf, /* in: pointer to buffer */
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ulint n); /* in: length of buffer */
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/*******************************************************************
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Inserts a created memory heap to the hash table of
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current allocated memory heaps.
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Initializes the hash table when first called. */
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UNIV_INTERN
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void
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mem_hash_insert(
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/*============*/
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mem_heap_t* heap, /* in: the created heap */
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const char* file_name, /* in: file name of creation */
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ulint line); /* in: line where created */
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/*******************************************************************
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Removes a memory heap (which is going to be freed by the caller)
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from the list of live memory heaps. Returns the size of the heap
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in terms of how much memory in bytes was allocated for the user of
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the heap (not the total space occupied by the heap).
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Also validates the heap.
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NOTE: This function does not free the storage occupied by the
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heap itself, only the node in the list of heaps. */
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UNIV_INTERN
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void
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mem_hash_remove(
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/*============*/
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mem_heap_t* heap, /* in: the heap to be freed */
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const char* file_name, /* in: file name of freeing */
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ulint line); /* in: line where freed */
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void
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mem_field_header_set_len(byte* field, ulint len);
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ulint
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mem_field_header_get_len(byte* field);
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void
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mem_field_header_set_check(byte* field, ulint check);
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ulint
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mem_field_header_get_check(byte* field);
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void
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mem_field_trailer_set_check(byte* field, ulint check);
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ulint
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mem_field_trailer_get_check(byte* field);
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#endif /* UNIV_MEM_DEBUG */
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