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6 commits

Author SHA1 Message Date
vasil
8e11468b17 branches/zip:
* Remove old Innobase copyright lines from C source files
* Add a reference to the GPLv2 license as recommended by the lawyers
at Oracle Legal

[Step 3/28]
2009-02-17 08:25:45 +00:00
marko
2f7bcc7d99 branches/zip: In hash table lookups, assert that the traversed items
satisfy some conditions when UNIV_DEBUG is defined.

HASH_SEARCH(): New parameter: ASSERTION. All users will pass an appropriate
ut_ad() or nothing.

dict_table_add_to_columns(): Assert that the table being added to the data
dictionary cache is not already being pointed to by the name_hash and
id_hash tables.

HASH_SEARCH_ALL(): New macro, for use in dict_table_add_to_columns().

dict_mem_table_free(): Set ut_d(table->cached = FALSE), so that we can
check ut_ad(table->cached) when traversing the hash tables, as in
HASH_SEARCH(name_hash, dict_sys->table_hash, ...) and
HASH_SEARCH(id_hash, dict_sys->table_id_hash, ...).

dict_table_get_low(), dict_table_get_on_id_low(): Assert
ut_ad(!table || table->cached).

fil_space_get_by_id(): Check ut_ad(space->magic_n == FIL_SPACE_MAGIC_N)
in HASH_SEARCH(hash, fil_system->spaces, ...).

fil_space_get_by_name(): Check ut_ad(space->magic_n == FIL_SPACE_MAGIC_N)
in HASH_SEARCH(name_hash, fil_system->name_hash, ...).

buf_buddy_block_free(): Check that the blocks are in valid state in
HASH_SEARCH(hash, buf_pool->zip_hash, ...).

buf_page_hash_get(): Check that the blocks are in valid state in
HASH_SEARCH(hash, buf_pool->page_hash, ...).

get_share(), free_share(): Check ut_ad(share->use_count > 0) in
HASH_SEARCH(table_name_hash, innobase_open_tables, ...).

This was posted as rb://75 for tracking down errors similar to Issue .
2009-01-13 19:46:22 +00:00
marko
2c2b06ad75 branches/zip: Introduce UNIV_INTERN, a linkage specifier for InnoDB-global
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.
2008-02-06 14:17:36 +00:00
vasil
f72d0e66d8 branches/zip:
Implement a limit on the memory used by the INNODB_TRX, INNODB_LOCKS and
INNODB_LOCK_WAITS tables. The maximum allowed memory is defined with the
macro TRX_I_S_MEM_LIMIT.

Approved by:	Marko (via IM)
2007-11-16 13:12:13 +00:00
vasil
795a17980d branches/zip:
Add const qualifier to the value returned by ha_storage_put().
It must not be changed as this will invalidate the hash.
2007-09-28 13:40:12 +00:00
vasil
48ed48eb49 branches/zip:
Add a type that stores chunks of data in its own storage and avoids
duplicates. Supported methods:

ha_storage_create()
Allocates new storage object.

ha_storage_put()
Copies a given data chunk into the storage and returns pointer to the
copy. If the data chunk is already present, a pointer to the existing
object is returned and the given data chunk is not copied.

ha_storage_empty()
Clears (empties) the storage from all data chunks that are stored in it.

ha_storage_free()
Destroys a storage object. Opposite to ha_storage_create().

Approved by:	Marko
2007-09-24 12:21:29 +00:00