1 files changed, 124 insertions, 0 deletions
diff --git a/innobase/include/dict0boot.ic b/innobase/include/dict0boot.ic
new file mode 100644
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+++ b/innobase/include/dict0boot.ic
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+/******************************************************
+Data dictionary creation and booting
+
+(c) 1996 Innobase Oy
+
+Created 4/18/1996 Heikki Tuuri
+*******************************************************/
+
+/**************************************************************************
+Writes the current value of the row id counter to the dictionary header file
+page. */
+
+void
+dict_hdr_flush_row_id(void);
+/*=======================*/
+
+
+/**************************************************************************
+Gets a pointer to the dictionary header and x-latches its page. */
+UNIV_INLINE
+dict_hdr_t*
+dict_hdr_get(
+/*=========*/
+			/* out: pointer to the dictionary header, 
+			page x-latched */
+	mtr_t*	mtr)	/* in: mtr */
+{
+	dict_hdr_t*	header;
+
+	ut_ad(mtr);
+	
+	header = DICT_HDR + buf_page_get(DICT_HDR_SPACE, DICT_HDR_PAGE_NO,
+							RW_X_LATCH, mtr);
+	buf_page_dbg_add_level(header, SYNC_DICT_HEADER);
+
+	return(header);
+}
+
+/**************************************************************************
+Returns a new table, index, or tree id. */
+UNIV_INLINE
+dulint
+dict_hdr_get_new_id(
+/*================*/
+			/* out: the new id */
+	ulint	type)	/* in: DICT_HDR_ROW_ID, ... */
+{
+	dict_hdr_t*	dict_hdr;
+	dulint		id;
+	mtr_t		mtr;
+
+	ut_ad((type == DICT_HDR_TABLE_ID) || (type == DICT_HDR_INDEX_ID)
+	      || (type == DICT_HDR_MIX_ID));
+
+	mtr_start(&mtr);
+
+	dict_hdr = dict_hdr_get(&mtr);
+
+	id = mtr_read_dulint(dict_hdr + type, MLOG_8BYTES, &mtr); 
+
+	id = ut_dulint_add(id, 1);
+	
+	mlog_write_dulint(dict_hdr + type, id, MLOG_8BYTES, &mtr); 
+
+	mtr_commit(&mtr);
+
+	return(id);
+}				
+
+/**************************************************************************
+Returns a new row id. */
+UNIV_INLINE
+dulint
+dict_sys_get_new_row_id(void)
+/*=========================*/
+			/* out: the new id */
+{
+	dulint	id;
+
+	mutex_enter(&(dict_sys->mutex));
+
+	id = dict_sys->row_id;
+	
+	if (0 == (ut_dulint_get_low(id) % DICT_HDR_ROW_ID_WRITE_MARGIN)) {
+
+		dict_hdr_flush_row_id();
+	}
+
+	UT_DULINT_INC(dict_sys->row_id);
+
+	mutex_exit(&(dict_sys->mutex));
+
+	return(id);
+}			
+
+/**************************************************************************
+Reads a row id from a record or other 6-byte stored form. */
+UNIV_INLINE
+dulint
+dict_sys_read_row_id(
+/*=================*/
+			/* out: row id */
+	byte*	field)	/* in: record field */
+{
+	ut_ad(DATA_ROW_ID_LEN == 6);
+
+	return(mach_read_from_6(field));
+}				
+
+/**************************************************************************
+Writes a row id to a record or other 6-byte stored form. */
+UNIV_INLINE
+void
+dict_sys_write_row_id(
+/*==================*/
+	byte*	field,	/* in: record field */
+	dulint	row_id)	/* in: row id */
+{
+	ut_ad(DATA_ROW_ID_LEN == 6);
+
+	mach_write_to_6(field, row_id);
+}				
+
+