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branches/zip: Fix some comments in buf0buf.h.

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marko
2006-12-07 10:02:23 +00:00
parent a9e16776e3
commit ca02e14530
1 changed files with 9 additions and 7 deletions
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16
include/buf0buf.h
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@@ -931,8 +931,10 @@ struct buf_page_struct{
BUF_BLOCK_ZIP_PAGE: zip_clean BUF_BLOCK_ZIP_PAGE: zip_clean
BUF_BLOCK_ZIP_FREE: zip_free[] */ BUF_BLOCK_ZIP_FREE: zip_free[] */
#ifdef UNIV_DEBUG #ifdef UNIV_DEBUG
ibool in_free_list; /* TRUE if in the free list; used in ibool in_free_list; /* TRUE if in buf_pool->free; when
debugging */ buf_pool->mutex is free, the following
should hold: in_free_list
== (state == BUF_BLOCK_NOT_USED) */
#endif /* UNIV_DEBUG */ #endif /* UNIV_DEBUG */
ib_uint64_t newest_modification; ib_uint64_t newest_modification;
/* log sequence number of the youngest /* log sequence number of the youngest
@@ -1010,7 +1012,7 @@ struct buf_block_struct{
but this flag is not set because but this flag is not set because
we do not keep track of all pages */ we do not keep track of all pages */
/* 4. Optimistic search field */ /* 2. Optimistic search field */
ib_uint64_t modify_clock; /* this clock is incremented every ib_uint64_t modify_clock; /* this clock is incremented every
time a pointer to a record on the time a pointer to a record on the
@@ -1024,7 +1026,7 @@ struct buf_block_struct{
bufferfixed, or (2) the thread has an bufferfixed, or (2) the thread has an
x-latch on the block */ x-latch on the block */
/* 5. Hash search fields: NOTE that the first 4 fields are NOT /* 3. Hash search fields: NOTE that the first 4 fields are NOT
protected by any semaphore! */ protected by any semaphore! */
ulint n_hash_helps; /* counter which controls building ulint n_hash_helps; /* counter which controls building
@@ -1063,7 +1065,7 @@ struct buf_block_struct{
ibool curr_left_side:1;/* TRUE or FALSE in hash indexing */ ibool curr_left_side:1;/* TRUE or FALSE in hash indexing */
dict_index_t* index; /* Index for which the adaptive dict_index_t* index; /* Index for which the adaptive
hash index has been created. */ hash index has been created. */
/* 6. Debug fields */ /* 4. Debug fields */
#ifdef UNIV_SYNC_DEBUG #ifdef UNIV_SYNC_DEBUG
rw_lock_t debug_latch; /* in the debug version, each thread rw_lock_t debug_latch; /* in the debug version, each thread
which bufferfixes the block acquires which bufferfixes the block acquires
@@ -1072,8 +1074,8 @@ struct buf_block_struct{
#endif #endif
}; };
/* Check if a block is in a valid state. */ /* Check if a buf_block_t object is in a valid state. */
#define buf_block_state_valid(block) \ #define buf_block_state_valid(block) \
(buf_block_get_state(block) >= BUF_BLOCK_NOT_USED \ (buf_block_get_state(block) >= BUF_BLOCK_NOT_USED \
&& (buf_block_get_state(block) <= BUF_BLOCK_REMOVE_HASH)) && (buf_block_get_state(block) <= BUF_BLOCK_REMOVE_HASH))