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branches/zip: Add proper comments to some file page accessors.

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This commit is contained in:
marko 2009-05-19 09:05:50 +00:00
parent 70f15d3fd9
commit c0d9e7b96a
2 changed files with 25 additions and 8 deletions
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16
fil/fil0fil.c
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@ -4687,17 +4687,25 @@ fil_addr_is_null(
}
/************************************************************************
Accessor functions for a file page */
Get the predecessor of a file page. */
UNIV_INTERN
ulint
fil_page_get_prev(const byte* page)
fil_page_get_prev(
/*==============*/
/* out: FIL_PAGE_PREV */
const byte* page) /* in: file page */
{
return(mach_read_from_4(page + FIL_PAGE_PREV));
}
/************************************************************************
Get the successor of a file page. */
UNIV_INTERN
ulint
fil_page_get_next(const byte* page)
fil_page_get_next(
/*==============*/
/* out: FIL_PAGE_NEXT */
const byte* page) /* in: file page */
{
return(mach_read_from_4(page + FIL_PAGE_NEXT));
}
@ -4708,7 +4716,7 @@ UNIV_INTERN
void
fil_page_set_type(
/*==============*/
byte* page, /* in: file page */
byte* page, /* in/out: file page */
ulint type) /* in: type */
{
ut_ad(page);

17
include/fil0fil.h
View file

@ -684,19 +684,28 @@ fil_addr_is_null(
/* out: TRUE if undefined */
fil_addr_t addr); /* in: address */
/************************************************************************
Accessor functions for a file page */
Get the predecessor of a file page. */
UNIV_INTERN
ulint
fil_page_get_prev(const byte* page);
fil_page_get_prev(
/*==============*/
/* out: FIL_PAGE_PREV */
const byte* page); /* in: file page */
/************************************************************************
Get the successor of a file page. */
UNIV_INTERN
ulint
fil_page_get_next(const byte* page);
fil_page_get_next(
/*==============*/
/* out: FIL_PAGE_NEXT */
const byte* page): /* in: file page */
/*************************************************************************
Sets the file page type. */
UNIV_INTERN
void
fil_page_set_type(
/*==============*/
byte* page, /* in: file page */
byte* page, /* in/out: file page */
ulint type); /* in: type */
/*************************************************************************
Gets the file page type. */