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faster when starting indexing of new data.
2000-10-26 Not Zed <NotZed@HelixCode.com>
* block.c (ibex_block_cache_open): Use IBEX_VERSION rather than
hardcoded version string.
* ibex_internal.h (IBEX_VERSION): Bumped version again. This time
I did change the index format.
* hash.c (struct _hashroot): Add a linked list of keys to the table.
(struct _hashblock): Added a next pointer as a block number.
(hash_insert): Link new key blocks into the key block list.
(struct _HASHCursor): Renamed block to key and added a block item.
(hash_cursor_next): Changed to go through the linked list of all
hash items rather than through each hash chain separately. >>
faster.
(ibex_hash_dump_rec): Remove a warning.
svn path=/trunk/; revision=6192
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before, and be more bugfree than ever!
2000-10-25 Not Zed <NotZed@HelixCode.com>
* ibex_internal.h (IBEX_VERSION): Bumped to another version. The
file format hasn't changed, but earlier bugs may create invalid
files.
* block.c (ibex_block_read): Use the root data directly.
(ibex_block_cache_open): As well.
(ibex_block_get): And here too.
(ibex_block_cache_sync): Sync the root block directly here.
* block.h: Pad root block out to 1024 bytes.
Added root block to struct _memcache.
* disktail.c (tail_get): Dirty the root block.
(tail_get): Fix for changes to root access.
(disk_remove): And here too.
* wordindexmem.c (sync_cache_entry): Handle the case of not having
any files in the list, which can happen now.
(word_index_pre): Make sure we set the wordid on the new cache
entry.
* ibex_block.c (ibex_save): Sigh. Pass the right argument to
index_post.
* block.c (ibex_block_cache_open): Create a word_index_mem for
indexing the words, rather than a word_index.
* ibex_block.c (ibex_index_buffer): If we haven't called index_pre
yet, do it before indexing anything.
(ibex_save): If wehave called index_pre previously, call
index_post.
(ibex_close): And same for here.
* index.h: Added a cursor class, and cursor retrieval function for
iterating through an index's keys.
* wordindexmem.c (ibex_create_word_index_mem): New word class,
similar to wordindex, but meant to be faster for updates.
(word_index_pre): Implement. We load all keys into memory.
(word_index_post): Implement. We sync and free all keys.
(find): Remove lru code, its no longer a cache, but a lookup
table.
(add_index_cache): Remove lru code here too.
(find_name): And here.
(word_flush): Flush the hashtable direct.
(word_close): Call flush to flush, rather than doing it ourselves.
(add_index_cache): If we are in an index state, we can assume a
cache miss == a new word.
(word_index_post): Maintain whether or not we are in an index
state, and the depth of the state.
(word_index_pre): Likewise. Dont reread the index if we have
already.
(cache_sanity): Fixed for struct changes.
* wordindex.h (IBEXWordClass): Added functions to prepare/cleanup
for lots of indexing. i.e. can be used to optimise indexing speed
at the cost of extra memory usage during the indexing process.
* hash.c (hash_cursor_create): Create a new cursor for iterating through a
hashtable.
(hash_cursor_close): 'close' the cursor. It is upto the
application to close any cursors it creates.
(hash_cursor_next): Goto the next key id.
(hash_cursor_next_key): Goto the next key, reutrn the key.
(hash_get_cursor): Return a cursor object.
* wordindex.c (word_index_post):
(word_index_pre): Added (empty) callbacks for pre/post functions.
svn path=/trunk/; revision=6165
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2000-10-12 Not Zed <NotZed@HelixCode.com>
* ibex_internal.h (struct ibex): Bumped ibex rev.
* block.c (ibex_block_cache_open): Bumped the ibex file revision
because of the hash table size change.
svn path=/trunk/; revision=5887
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2000-10-12 Not Zed <NotZed@HelixCode.com>
* index.h: Added some stat stuff.
* wordindex.c (struct _wordcache): Changed files[] to be a pointer
to an allocated block/or an individual item.
(find): Fix for changes to struct.
(find_name): "
(sync_cache_entry): "
(add): "
(add_list): "
(add_index_cache): Free the cache file array if it was created.
(word_flush): And here.
(word_close): And here too.
(ibex_create_word_index): Double the size of the hashtables.
(word_flush): Make sure we reset the wordcount to 0 if we remove
the list items. DOH.
(add_index_cache): Use a slightly more sohpisticated aging
algorithm to remove expired nodes.
2000-10-10 Not Zed <NotZed@HelixCode.com>
* hash.c (hash_find):
(hash_remove):
(hash_insert): Truncate key if it is too big to fit in a
single block to MAX_KEYLEN bytes.
svn path=/trunk/; revision=5882
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2000-09-28 Not Zed <NotZed@HelixCode.com>
* block.c (ibex_block_free): Make sure we map the 'free' block to
a block number when unlinking a block (fixes a lot of assertion
failures).
(ibex_block_cache_open): Initialise sync flag on root block. If
it is not set on open then the index could be in an invalid state,
and should be rescanned.
(ibex_block_cache_sync): Sync root block last, and set the sync
flag.
(ibex_block_cache_open): Mirror root block flags in block_cache
struct.
(ibex_block_cache_sync): Likewise.
(ibex_block_read): If we write a dirty block, then we clear the
sync flag if its still set; we are no longer synced.
svn path=/trunk/; revision=5613
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2000-09-19 Not Zed <NotZed@HelixCode.com>
** Merged from IBEX_DISK branch to head.
svn path=/trunk/; revision=5500
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