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branches/zip: Introduce buf_page_t, a common structure for compressed-only

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and uncompressed buffer pool pages.

buf_block_t: Replace page_zip, space, and offset with buf_page_t page.
Replace some integers with bit-fields.

enum buf_block_state: Rename to buf_page_state.  Add BUF_BLOCK_ZIP_PAGE.

page_zip_des_t: Add the field "state".  Make the integer fields bit-fields.

page_zip_copy(): Document which fields are copied.
This commit is contained in:
marko
2006-11-24 08:32:18 +00:00
parent c476d38e07
commit 8332c45ce4
11 changed files with 140 additions and 110 deletions
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4
include/page0zip.h
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@@ -348,7 +348,9 @@ Copy a page byte for byte, except for the file page header and trailer. */
void
page_zip_copy(
/*==========*/
page_zip_des_t* page_zip, /* out: copy of src_zip */
page_zip_des_t* page_zip, /* out: copy of src_zip
(n_blobs, m_start, m_end,
data[0..size-1]) */
page_t* page, /* out: copy of src */
const page_zip_des_t* src_zip, /* in: compressed page */
const page_t* src, /* in: page */