int _mi_dispose(register MI_INFO *info, MI_KEYDEF *keyinfo, my_off_t pos,
int level)
{
my_off_t old_link;
char buff[8];
DBUG_ENTER("_mi_dispose");
DBUG_PRINT("enter",("pos: %ld", (long) pos));
old_link=info->s->state.key_del[keyinfo->block_size];
info->s->state.key_del[keyinfo->block_size]=pos;
mi_sizestore(buff,old_link);
info->s->state.changed|= STATE_NOT_SORTED_PAGES;
DBUG_RETURN(key_cache_write(info->s->key_cache,
info->s->kfile, pos , level, buff,
sizeof(buff),
(uint) keyinfo->block_length,
(int) (info->lock_type != F_UNLCK)));
} /* _mi_dispose */
void _myisam_log_record(enum myisam_log_commands command, MI_INFO *info,
const uchar *record, my_off_t filepos, int result)
{
uchar buff[21],*pos;
int error,old_errno;
uint length;
ulong pid=(ulong) GETPID();
old_errno=my_errno;
if (!info->s->base.blobs)
length=info->s->base.reclength;
else
length=info->s->base.reclength+ _my_calc_total_blob_length(info,record);
buff[0]=(uchar) command;
mi_int2store(buff+1,info->dfile);
mi_int4store(buff+3,pid);
mi_int2store(buff+7,result);
mi_sizestore(buff+9,filepos);
mi_int4store(buff+17,length);
mysql_mutex_lock(&THR_LOCK_myisam);
error=my_lock(myisam_log_file,F_WRLCK,0L,F_TO_EOF,MYF(MY_SEEK_NOT_DONE));
(void) mysql_file_write(myisam_log_file, buff, sizeof(buff), MYF(0));
(void) mysql_file_write(myisam_log_file, record, info->s->base.reclength, MYF(0));
if (info->s->base.blobs)
{
MI_BLOB *blob,*end;
for (end=info->blobs+info->s->base.blobs, blob= info->blobs;
blob != end ;
blob++)
{
memcpy(&pos, record+blob->offset+blob->pack_length,
sizeof(char*));
(void) mysql_file_write(myisam_log_file, pos, blob->length, MYF(0));
}
}
if (!error)
error=my_lock(myisam_log_file,F_UNLCK,0L,F_TO_EOF,MYF(MY_SEEK_NOT_DONE));
mysql_mutex_unlock(&THR_LOCK_myisam);
my_errno=old_errno;
}
int _ma_dispose(register MARIA_HA *info, my_off_t pos, my_bool page_not_read)
{
my_off_t old_link;
uchar buff[MAX_KEYPAGE_HEADER_SIZE+ 8 + 2];
ulonglong page_no;
MARIA_SHARE *share= info->s;
MARIA_PINNED_PAGE page_link;
uint block_size= share->block_size;
int result= 0;
enum pagecache_page_lock lock_method;
enum pagecache_page_pin pin_method;
DBUG_ENTER("_ma_dispose");
DBUG_PRINT("enter",("page: %lu", (ulong) (pos / block_size)));
DBUG_ASSERT(pos % block_size == 0);
(void) _ma_lock_key_del(info, 0);
old_link= share->key_del_current;
share->key_del_current= pos;
page_no= pos / block_size;
bzero(buff, share->keypage_header);
_ma_store_keynr(share, buff, (uchar) MARIA_DELETE_KEY_NR);
_ma_store_page_used(share, buff, share->keypage_header + 8);
mi_sizestore(buff + share->keypage_header, old_link);
share->state.changed|= STATE_NOT_SORTED_PAGES;
if (share->now_transactional)
{
LSN lsn;
uchar log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE * 2];
LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 1];
my_off_t page;
/* Store address of deleted page */
page_store(log_data + FILEID_STORE_SIZE, page_no);
/* Store link to next unused page (the link that is written to page) */
page= (old_link == HA_OFFSET_ERROR ? IMPOSSIBLE_PAGE_NO :
old_link / block_size);
page_store(log_data + FILEID_STORE_SIZE + PAGE_STORE_SIZE, page);
log_array[TRANSLOG_INTERNAL_PARTS + 0].str= log_data;
log_array[TRANSLOG_INTERNAL_PARTS + 0].length= sizeof(log_data);
if (translog_write_record(&lsn, LOGREC_REDO_INDEX_FREE_PAGE,
info->trn, info,
(translog_size_t) sizeof(log_data),
TRANSLOG_INTERNAL_PARTS + 1, log_array,
log_data, NULL))
result= 1;
}
if (page_not_read)
{
lock_method= PAGECACHE_LOCK_WRITE;
pin_method= PAGECACHE_PIN;
}
else
{
lock_method= PAGECACHE_LOCK_LEFT_WRITELOCKED;
pin_method= PAGECACHE_PIN_LEFT_PINNED;
}
if (pagecache_write_part(share->pagecache,
&share->kfile, (pgcache_page_no_t) page_no,
PAGECACHE_PRIORITY_LOW, buff,
share->page_type,
lock_method, pin_method,
PAGECACHE_WRITE_DELAY, &page_link.link,
LSN_IMPOSSIBLE,
0, share->keypage_header + 8))
result= 1;
#ifdef IDENTICAL_PAGES_AFTER_RECOVERY
{
uchar *page_buff= pagecache_block_link_to_buffer(page_link.link);
bzero(page_buff + share->keypage_header + 8,
block_size - share->keypage_header - 8 - KEYPAGE_CHECKSUM_SIZE);
}
#endif
if (page_not_read)
{
/* It was not locked before, we have to unlock it when we unpin pages */
page_link.unlock= PAGECACHE_LOCK_WRITE_UNLOCK;
page_link.changed= 1;
push_dynamic(&info->pinned_pages, (void*) &page_link);
}
DBUG_RETURN(result);
} /* _ma_dispose */
