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Tree: 065f8dacab

Author	SHA1	Message	Date
marko	5727d980b6	branches/zip: Add @file comments, and convert decorative /******************************* comments to Doxygen / style like this: /***************************// This conversion was performed by the following command: perl -i -e 'while(<ARGV>){if (m\|^/\{30}\$\|) { s\|\{4}$\|//*\| if ++$com>1; $_ .= "\@file $ARGV\n" if $com==2} print; if(eof){$.=0;undef $com}}' /*[ch] include/univ.i	17 years ago
marko	5f1c5429d7	branches/zip: Split some long lines that were introduced in r5091.	17 years ago
marko	8ab5601eea	branches/zip: Convert the function comments to Doxygen format. This patch was created by running the following commands: for i in /[ch]; do doxygenify.pl $i; done perl -i -pe 's#\{3} \/$#***/#' /[ch] where doxygenify.pl is https://svn.innodb.com/svn/misc/trunk/tools/doxygenify.pl r510 Verified the consistency as follows: (0) not too many / in: / or / out: / comments left in the code: grep -l '/\\s$in\\|out$[,:/]' /[ch] (1) no difference when ignoring blank lines, after stripping all C90-style / comments /, including multi-line ones, before and after applying this patch: perl -i -e 'undef $/;while(<ARGV>){s#/\(.?)\/##gs;print}' /[ch] diff -I'^\s$' --exclude .svn -ru TREE1 TREE2 (2) after stripping @return comments and !<, generated a diff and omitted the hunks where / out: / function return comments were removed: perl -i -e'undef $/;while(<ARGV>){s#!<##g;s#\n\@return\t.?\/# \/#gs;print}'\ /[ch] svn diff\| perl -e 'undef $/;$_=<>;s#\n-\s/\ out[:,]([^\n]?)(\n-[^\n]?)\/##gs;print' Some unintended changes were left. These will be removed in a subsequent patch.	17 years ago
marko	13f32345e9	branches/zip: Add missing out: comments to nullary functions.	17 years ago
vasil	db64424691	branches/zip: * 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 5/28]	17 years ago
marko	e906213f1e	branches/zip: buf_LRU_free_block(): Clarify the function comment.	17 years ago
marko	7c119c9580	branches/zip: Improve the LRU algorithm with a separate unzip_LRU list of blocks that contains uncompressed and compressed frames. This patch was designed by Heikki and Inaam, implemented by Inaam, and refined and reviewed by Marko and Sunny. buf_buddy_n_frames, buf_buddy_min_n_frames, buf_buddy_max_n_frames: Remove. buf_page_belongs_to_unzip_LRU(): New predicate: bpage->zip.data && buf_page_get_state(bpage) == BUF_BLOCK_FILE_PAGE. buf_pool_t, buf_block_t: Add the linked list unzip_LRU. A block in the regular LRU list is in unzip_LRU iff buf_page_belongs_to_unzip_LRU() holds. buf_LRU_free_block(): Add a third return value to refine the case "cannot free the block". buf_LRU_search_and_free_block(): Update the documentation to reflect the implementation. buf_LRU_stat_t, buf_LRU_stat_cur, buf_LRU_stat_sum, buf_LRU_stat_arr[]: Statistics for the unzip_LRU algorithm. buf_LRU_stat_update(): New function: Update the statistics. Called once per second by srv_error_monitor_thread(). buf_LRU_validate(): Validate the unzip_LRU list as well. buf_LRU_evict_from_unzip_LRU(): New predicate: Use the unzip_LRU before falling back to the regular LRU? buf_LRU_free_from_unzip_LRU_list(), buf_LRU_free_from_common_LRU_list(): Subfunctions of buf_LRU_search_and_free_block(). buf_LRU_search_and_free_block(): Reimplement. Try to evict an uncompressed page from the unzip_LRU list before falling back to evicting an entire block from the common LRU list. buf_unzip_LRU_remove_block_if_needed(): New function. buf_unzip_LRU_add_block(): New function: Add a block to the unzip_LRU list.	18 years ago
marko	bddb5a0cca	branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in .h files, so that the function signatures in the .h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.	18 years ago
marko	cdb5b46445	branches/zip: Implement wrappers for all operations on the buffer pool mutex. buf_pool->mutex: Rename to buf_pool_mutex, so that the wrappers will have to be used when changes are merged from other source trees. buf_pool->zip_mutex: Rename to buf_pool_zip_mutex. buf_pool_mutex_own(), buf_pool_mutex_enter(), buf_pool_mutex_exit(): Wrappers for buf_pool_mutex.	18 years ago
marko	33e082be24	branches/zip: buf_buddy_alloc(): Assign *lru = TRUE whenever the buffer pool mutex is temporarily released. buf_LRU_free_block(), buf_buddy_alloc_clean(): Add an output parameter that will be assigned TRUE when the buffer pool mutex is released. This bug was spotted by and fix provided by Sunny.	18 years ago
marko	f54da50c1e	branches/zip: buf_buddy_alloc_clean(): Restart the scan after a successful buf_LRU_free_block(). buf_LRU_free_block(): Note that buf_pool->mutex may be temporarily released.	19 years ago
marko	492cd8ce19	branches/zip: Minor improvements. buf_LRU_block_remove_hashed_page(): Return the new state of the block. Only call buf_LRU_block_free_hashed_page() if buf_LRU_block_remove_hashed_page() did not return BUF_BLOCK_ZIP_FREE, that is, the control block was not freed. buf_LRU_insert_zip_clean(): New function, for inserting a compressed-only block into buf_pool->zip_clean in the LRU order. buf_LRU_block_remove_hashed_page(), buf_LRU_free_block(): Add the flag "zip" for controlling if the compressed page of an uncompressed page should be removed. For now, assume zip==TRUE. buf_LRU_get_free_block(): Replace the test for UT_LIST_GET_LEN(buf_pool->free) with a test for the return value of buf_LRU_get_free_only(). Do not free zip.data, as it must already have been freed. buf_flush_insert_into_flush_list(), buf_flush_insert_sorted_into_flush_list(): Remove compressed-only blocks from the buf_pool->zip_clean list. buf_flush_remove(): Restore compressed-only blocks to the buf_pool->zip_clean list. buf_page_init_for_read(): Uncompress compressed-only blocks when possible. Currently, there cannot be any compressed-only blocks in the buffer pool; they would be inserted by buf_LRU_free_block(bpage, zip=FALSE).	19 years ago
marko	cb530ba3e7	branches/zip: Make use of the previously unused state BUF_BLOCK_MEMORY. 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().	19 years ago
marko	f9a10f4cef	branches/zip: Implement the whole allocation algorithm of compressed pages. buf_LRU_free_block(): Free compressed-only pages and their descriptors with buf_buddy_free(). buf_LRU_get_free_only(): New function for returning a block from buf_pool->free if one is available. Split from buf_LRU_get_free_block(). buf_buddy_alloc_zip(): Rename from buf_buddy_alloc_low() and make static. Remove parameter "split". Always try to split. buf_buddy_free_block(): Rename to buf_buddy_block_free(). buf_buddy_block_register(): New function for registering buf_block_t objects reserved by the allocator. buf_buddy_alloc_from(): New function for allocating an object from a bigger object, and putting the unused parts on the free list. buf_buddy_alloc_clean_zip(): New function for allocating memory by replacing an unmodified compressed page. buf_buddy_alloc_low(): New function for allocating memory, either from the free lists of compressed pages, from the global free list, or from unmodified pages in the buffer pool.	19 years ago
marko	aedce8cde3	branches/zip: Move the fields related to the least-recently-used algorithm of the buffer pool from buf_block_t to buf_page_t. Replace some buf_block_t* parameters with buf_page_t*. Add accessor functions.	19 years ago
marko	03bdaaf509	branches/zip: Introduce a new preprocessor symbol, UNIV_BUF_DEBUG, and enclose buf_validate() and friends in it.	19 years ago
marko	274f2bc6a1	branches/zip: buf_LRU_free_block(): New function, split from buf_LRU_search_and_free_block().	19 years ago
marko	89bacf3402	branches/zip: Remove support for AWE (Intel PAE on Win32). Removal of the variable innobase_buffer_pool_awe_mem_mb requires coordination with MySQL AB.	19 years ago
marko	a9ee619a9b	branches/zip: Minor improvements. Introduce FIL_PAGE_ZBLOB_DATA as a synonym for FIL_PAGE_FILE_FLUSH_LSN. btr_store_big_rec_extern_fields(): Make the assertion about dict_table_zip_size() more accurate. buf_LRU_get_free_block(), buf_block_alloc(): Add parameter zip_size. buf_calc_zblob_page_checksum(): Remove. Replace with page_zip_calc_checksum(). buf_page_init(): Remove parameter zip_size. buf_page_io_complete(): Add a placeholder for handling compressed pages. trx_doublewrite_page_inside(): Remove redundant function. page_zip_write_rec(): Relax an overly tight assertion about blob_no.	20 years ago
marko	0c4dfda3be	branches/zip: Merge revisions 265:459 from trunk.	20 years ago
marko	747c8fad44	branches/zip: Merge revisions 200:236 from trunk.	20 years ago
osku	2903c72469	Import 5.0 code.	20 years ago

22 Commits (065f8dacab6ce3e6750f01e5a9123e5750ad5f4a)