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Replace MLOG_UNDO_INIT with MLOG_2BYTES, MLOG_4BYTES

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This commit is contained in:
Marko Mäkelä 2017-12-19 14:37:48 +02:00
commit ccb3550221
4 changed files with 11 additions and 72 deletions
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63
storage/innobase/trx/trx0undo.cc
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@ -309,47 +309,6 @@ trx_undo_get_first_rec(
/*============== UNDO LOG FILE COPY CREATION AND FREEING ==================*/
/**********************************************************************//**
Writes the mtr log entry of an undo log page initialization. */
UNIV_INLINE
void
trx_undo_page_init_log(
/*===================*/
page_t* undo_page, /*!< in: undo log page */
mtr_t* mtr) /*!< in: mtr */
{
mlog_write_initial_log_record(undo_page, MLOG_UNDO_INIT, mtr);
mlog_catenate_ulint_compressed(mtr, 0);
}
/***********************************************************//**
Parses the redo log entry of an undo log page initialization.
@return end of log record or NULL */
byte*
trx_undo_parse_page_init(
/*=====================*/
const byte* ptr, /*!< in: buffer */
const byte* end_ptr,/*!< in: buffer end */
page_t* page, /*!< in: page or NULL */
mtr_t* mtr) /*!< in: mtr or NULL */
{
if (mach_parse_compressed(&ptr, end_ptr)) {
recv_sys->found_corrupt_log = true;
}
if (ptr == NULL) {
return(NULL);
}
if (page) {
trx_undo_page_init(page, mtr);
}
return(const_cast<byte*>(ptr));
}
/********************************************************************//**
Initializes the fields in an undo log segment page. */
static
@ -361,18 +320,18 @@ trx_undo_page_init(
{
trx_upagef_t* page_hdr;
mlog_write_ulint(undo_page + FIL_PAGE_TYPE,
FIL_PAGE_UNDO_LOG, MLOG_2BYTES, mtr);
compile_time_assert(TRX_UNDO_PAGE_TYPE == 0);
compile_time_assert(TRX_UNDO_PAGE_START == 2);
compile_time_assert(TRX_UNDO_PAGE_NODE == TRX_UNDO_PAGE_FREE + 2);
page_hdr = undo_page + TRX_UNDO_PAGE_HDR;
*reinterpret_cast<uint16*>(page_hdr + TRX_UNDO_PAGE_TYPE) = 0;
mach_write_to_2(page_hdr + TRX_UNDO_PAGE_START,
TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_HDR_SIZE);
mach_write_to_2(page_hdr + TRX_UNDO_PAGE_FREE,
TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_HDR_SIZE);
fil_page_set_type(undo_page, FIL_PAGE_UNDO_LOG);
trx_undo_page_init_log(undo_page, mtr);
mlog_write_ulint(page_hdr, TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_HDR_SIZE,
MLOG_4BYTES, mtr);
mlog_write_ulint(page_hdr + TRX_UNDO_PAGE_FREE,
TRX_UNDO_PAGE_HDR + TRX_UNDO_PAGE_HDR_SIZE,
MLOG_2BYTES, mtr);
}
/***************************************************************//**