* 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 22/28]

recv_read_cp_info_for_backup(), recv_scan_log_seg_for_backup():
These functions are only called by InnoDB Hot Backup.

This will help trim the dependencies of InnoDB Hot Backup.

recv_recovery_from_checkpoint_start(): Rename to
recv_recovery_from_checkpoint_start_func(), and remove the two first
parameters unless UNIV_LOG_ARCHIVE is defined.  Define and use
the auxiliary macros TYPE_CHECKPOINT and LIMIT_LSN in the function.

struct recv_sys_struct: Remove archive_group unless UNIV_LOG_ARCHIVE
is defined.

Do not define LOG_ARCHIVE unless UNIV_LOG_ARCHIVE is defined.

ignore intermittent differences in the "predefined minimum record" flag.

page_zip_validate_low(): Renamed from page_zip_validate(), with an
additional parameter: ibool sloppy.  Ignore REC_INFO_MIN_REC_FLAG when
sloppy == TRUE.

page_zip_validate(): Wrapper for page_zip_validate_low().  Pass
sloppy = recv_recovery_is_on().

recv_recover_page(): After applying the changes from the redo log to a
compressed B-tree page, invoke page_zip_validate_low() in strict mode.

buf_block_dbg_add_level(block, level): Define as an empty macro when
UNIV_SYNC_DEBUG is not defined.  Remove #ifdef UNIV_SYNC_DEBUG around
all invocations.

variable innodb_file_format.  Implement file format version stamping of
*.ibd files and SYS_TABLES.TYPE.

This change breaks introduces an incompatible change for for
compressed tables.  We can do this, as we have not released yet.

innodb-zip.test: Add tests for stricter KEY_BLOCK_SIZE and ROW_FORMAT
checks.

DICT_TF_COMPRESSED_MASK, DICT_TF_COMPRESSED_SHIFT: Replace with
DICT_TF_ZSSIZE_MASK, DICT_TF_ZSSIZE_SHIFT.

DICT_TF_FORMAT_MASK, DICT_TF_FORMAT_SHIFT, DICT_TF_FORMAT_51,
DICT_TF_FORMAT_ZIP: File format version, stored in table->flags,
in the .ibd file header, and in SYS_TABLES.TYPE.

dict_create_sys_tables_tuple(): Write the table flags to SYS_TABLES.TYPE
if the format is at least DICT_TF_FORMAT_ZIP.  For old formats
(DICT_TF_FORMAT_51), write DICT_TABLE_ORDINARY as the table type.

DB_TABLE_ZIP_NO_IBD: Remove the error code.  The error handling is done
in ha_innodb.cc; as a failsafe measure, dict_build_table_def_step() will
silently clear the compression and format flags instead of returning this
error.

dict_mem_table_create(): Assert that no extra bits are set in the flags.

dict_sys_tables_get_zip_size(): Rename to dict_sys_tables_get_flags().
Check all flag bits, and return ULINT_UNDEFINED if the combination is
unsupported.

dict_boot(): Document the SYS_TABLES columns N_COLS and TYPE.

dict_table_get_format(), dict_table_set_format(),
dict_table_flags_to_zip_size(): New accessors to table->flags.

dtuple_convert_big_rec(): Introduce the auxiliary variables
local_len, local_prefix_len.  Store a 768-byte prefix locally
if the file format is less than DICT_TF_FORMAT_ZIP.

dtuple_convert_back_big_rec(): Restore the columns.

srv_file_format: New variable: innodb_file_format.

fil_create_new_single_table_tablespace(): Replace the parameter zip_size
with table->flags.

fil_open_single_table_tablespace(): Replace the parameter zip_size_in_k
with table->flags.  Check the flags.

fil_space_struct, fil_space_create(), fil_op_write_log():
Replace zip_size with flags.

fil_node_open_file(): Note a TODO item for InnoDB Hot Backup.
Check that the tablespace flags match.

fil_space_get_zip_size(): Rename to fil_space_get_flags().  Add a
wrapper for fil_space_get_zip_size().

fsp_header_get_flags(): New function.

fsp_header_init_fields(): Replace zip_size with flags.

FSP_SPACE_FLAGS: New name for the tablespace flags.  This field used
to be called FSP_PAGE_ZIP_SIZE, or FSP_LOWEST_NO_WRITE.  It has always
been written as 0 in MySQL/InnoDB versions 4.1 to 5.1.

MLOG_ZIP_FILE_CREATE: Rename to MLOG_FILE_CREATE2.  Add a 32-bit
parameter for the tablespace flags.

ha_innobase::create(): Check the table attributes ROW_FORMAT and
KEY_BLOCK_SIZE.  Issue errors if they are inappropriate, or warnings
if the inherited attributes (in ALTER TABLE) will be ignored.

PAGE_ZIP_MIN_SIZE_SHIFT: New constant: the 2-logarithm of PAGE_ZIP_MIN_SIZE.

lock_get_table(), locks_row_eq_lock(), buf_page_get_mutex(): Add return
after ut_error.  On Windows, ut_error is not declared as "noreturn".

Add explicit type casts when assigning ulint to byte to get rid of
"possible loss of precision" warnings.

struct i_s_table_cache_struct: Declare rows_used, rows_allocd as ulint
instead of ullint.  32 bits should be enough.

fill_innodb_trx_from_cache(), i_s_zip_fill_low(): Cast 64-bit unsigned
integers to longlong when calling Field::store(longlong, bool is_unsigned).
Otherwise, the compiler would implicitly convert them to double and
invoke Field::store(double) instead.

recv_truncate_group(), recv_copy_group(), recv_calc_lsn_on_data_add():
Cast ib_uint64_t expressions to ulint to get rid of "possible loss of
precision" warnings.  (There should not be any loss of precision in
these cases.)

log_close(), log_checkpoint_margin(): Declare some variables as ib_uint64_t
instead of ulint, so that there won't be any potential loss of precision.

mach_write_ull(): Cast the second argument of mach_write_to_4() to ulint.

OS_FILE_FROM_FD(): Cast the return value of _get_osfhandle() to HANDLE.

row_merge_dict_table_get_index(): Cast the parameter of mem_free() to (void*)
in order to get rid of the bogus MSVC warning C4090, which has been reported
as MSVC bug 101661:
<http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=101661>

row_mysql_read_blob_ref(): To get rid of a bogus MSVC warning C4090,
drop a const qualifier.

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.

trx_rollback_or_clean_all_recovered().

trx_t: Remove dict_undo_list and dict_redo_list.

innobase_create_temporary_tablename(): Replace TEMP_TABLE_PREFIX with
a table name suffix "#1" or "#2".  In this way, the user can restore
precious data, should anything go wrong.  It is possible to reach an
inconsistent state, because the creation, deletion and renaming of
single-table tablespaces are not transactional.

ut_print_namel(), fil_make_ibd_name(), innobase_rename_table(): Remove
the special treatment of TEMP_TABLE_PREFIX.

Introduce TEMP_INDEX_PREFIX == 0xff for temporary indexes.  This byte
cannot occur in index names since MySQL 4.1.  However, it might have
been possible to use this byte in MySQL 4.0.

recv_recovery_from_checkpoint_finish(): Call the new function
row_merge_drop_temp_indexes(), to drop all indexes whose name starts
with the byte 0xff.

row_merge_rename_indexes(): Renamed from row_merge_rename_index().
Remove the parameter "index".

row_drop_table_for_mysql(): Unconditionally call trx_commit_for_mysql().

row_drop_table_for_mysql_no_commit(): Correct the function commit,
based on the corrected comment of row_drop_table_for_mysql().  Rely on
table->to_be_dropped instead of TEMP_TABLE_PREFIX.

ha_innobase::add_index(): Simplify the control flow.

buf_page_get_gen().  This saves one mutex operation per block request.

buf_page_get_gen(), various macros and functions: Add parameter zip_size.

btr_node_ptr_get_child(): Add parameter index.

fil_space_get_latch(): Add optional output parameter zip_size.

fil_space_get_zip_size(): Return 0 for space id==0, because the
system tablespace is never compressed.

fsp_header_init(): Remove the parameter zip_size.

ibuf_free_excess_pages(): Remove the parameter zip_size.

trx_rseg_t, trx_undo_t: Add field zip_size.

xdes_lst_get_next(): Remove, unused.

buf_LRU_get_free_block(): Document that the block is in the state
BUF_BLOCK_READY_FOR_USE.

buf_block_alloc(): Change the state of the block to BUF_BLOCK_MEMORY
and document it.

Replace those invocations of buf_block_alloc() with
buf_LRU_get_free_block() where the allocated block is used for buffer
pool input and output.  However, temporary copies of B-tree pages
during reorganization are not used for file I/O, and such blocks are
still allocated with buf_block_alloc().

(state == BUF_BLOCK_ZIP_PAGE).  Make use of buf_page_in_file()
and buf_page_get_mutex().

buf_block_get_newest_modification(): Rename to
buf_page_get_newest_modification().

to ut_uint64_align_down() and ut_uint64_align_up(), to reflect the rename
of ib_ulonglong to ib_uint64_t in r1085.

64 bits.  "long long" might be longer than 64 bits on some systems.

for log sequence numbers, to replace dulint.

and block->space with buf_block_get_state(block), buf_block_get_page_no(block),
and buf_block_get_space(block).

enum buf_block_state: Replaces the #define'd buf_block_t.state values.

buf_block_get_state(): New function.

buf_block_get_frame(): Add __attribute__((const)).

buf_pool_t: Remove n_frames, max_size, and blocks_of_frames.
The current buffer pool size is in curr_size.

buf_pool_init(): Remove parameter max_size.

buf_pool_get_max_size(), buf_pool_is_block(): Remove.

buf_block_align(): Do not assume that the buffer pool is allocated
in one chunk.  Replace dependency on buf_pool->blocks_of_frames
with a call to buf_page_hash_get().

btr_cur_t: Move page_block to page_cur_t::block.

page_cur_get_block(), page_cur_get_page_zip(): New functions.

page_cur_position(): Add parameter block.

Remove many page_zip parameters, now that there is page_cur_get_page_zip().
Replace some page, page_zip parameters with block.

Add some const qualifiers to function parameters and remove casts.

PAGE_HEAP_NO_INFIMUM, PAGE_HEAP_NO_SUPREMUM, PAGE_HEAP_NO_USER_LOW:
New constants.

Replace some cursor code in low-level diagnostic functions with
direct management of rec, because buf_block_t::buf_fix_count may be 0
when the functions are called, and debug assertions would fail.

ibuf_page(), ibuf_page_low(), ibuf_free_excess_pages(), ibuf_insert(),
buf_read_page(), buf_read_ahead_linear(), buf_read_recv_pages():
Add parameter zip_size.

btr_search_build_page_hash_index(), fsp_parse_init_file_page(),
ibuf_parse_bitmap_init(): Replace page_t* with buf_block_t*.

buf_read_ibuf_merge_pages(): Add const qualifiers.  Retrieve zip_size.

ibuf_merge_or_delete_for_page(): Replace page_t* with buf_block_t*.
Add parameter zip_size.

Replace page_t* or page_zip_des_t* parameters in some functions with
buf_block_t*.

buf_frame_get_page_zip(): Disable unless #ifdef UNIV_DEBUG || UNIV_ZIP_DEBUG.

btr_cur_t: Add buf_block_t* page_block.

btr_pcur_get_block(), btr_cur_get_block(), btr_cur_get_page_zip():
New functions.

btr_cur_position(): Add the parameter block.

Replace buf_frame_modify_clock_inc() with buf_block_modify_clock_inc().
Replace buf_frame_get_lock_hash_val() with buf_block_get_lock_hash_val().
Replace buf_frame_get_lock_mutex() with buf_block_get_lock_mutex().

page_create_zip(), page_create(), page_create_low(), btr_page_free(),
btr_page_free_low(): Replace page_t with buf_block_t.

btr_block_get(): New function to return buf_block_t.

btr_page_alloc(), buf_page_get_release_on_io(), buf_page_get_gen(),
buf_page_create(), fseg_create(), fseg_create_general(): Return buf_block_t.

buf_page_get_known_nowait(): Expect buf_block_t instead of buf_frame_t.

buf_frame_get_newest_modification(): Replace with
buf_block_get_newest_modification().

buf_page_dbg_add_level(): Replace with buf_block_dbg_add_level().

buf_block_get_zip_size(): New function.

buf_block_get_page_zip(): Reintroduce.

recv_recover_page(): Replace page, space, page_no with block.

ibuf_bitmap_page_init(): Replace page, zip_size with block.

ibuf_parse_bitmap_init(): Remove the parameter zip_size.

btr_search_drop_page_hash_index(): Replace page with block.

buf_flush_init_for_writing(): Remove parameters space, page_no.

fsp_init_file_page_low(): Wriet space_id and page_no to the page.

fil_create_new_single_table_tablespace(): Write space_id to the page.

ut_align_down(), or ut_align_offset().

dict_load_foreigns(): Enclose in #ifndef UNIV_HOTBACKUP.

fil_extend_tablespaces_to_stored_len(): Pass zip_size to fil_read().

buf_page_init_for_backup_restore(): Add parameter zip_size.
Enclose the declaration in buf0buf.h in #ifdef UNIV_HOTBACKUP.

recv_apply_log_recs_for_backup(): Replace the local variable "page"
with the local variable "block".  Add local variable zip_size.

as per revisions r763:765.

MLOG_COMP_REC_MIN_MARK is allowed on a compressed page.

dict_load_table(): Initialize table->flags with zip_size.

mlog_parse_nbytes(), mlog_parse_string(): Add parameter page_zip and
write the changes also to the compressed page if one is specified.
Assert that these functions are not called on FIL_PAGE_INDEX pages.

buf_page_io_complete(): Replace block->frame with frame where appropriate.

recv_parse_or_apply_log_rec_body(): Add ut_a(!page_zip) where appropriate.

page_parse_delete_rec_list(): Add parameter page_zip.