int _mi_write_keypage(MI_INFO *info, MI_KEYDEF *keyinfo,
my_off_t page, int level, uchar *buff)
{
uint length;
DBUG_ENTER("_mi_write_keypage");
if (page < info->s->base.keystart ||
page+keyinfo->block_length > info->state->key_file_length ||
(page & (MI_MIN_KEY_BLOCK_LENGTH-1)))
{
DBUG_PRINT("error",("Trying to write inside key status region: key_start: %lu length: %lu page: %lu",
(long) info->s->base.keystart,
(long) info->state->key_file_length,
(long) page));
set_my_errno(EINVAL);
DBUG_RETURN((-1));
}
DBUG_PRINT("page",("write page at: %lu",(long) page));
DBUG_DUMP("buff",(uchar*) buff,mi_getint(buff));
if ((length=keyinfo->block_length) > IO_SIZE*2 &&
info->state->key_file_length != page+length)
length= ((mi_getint(buff)+IO_SIZE-1) & (uint) ~(IO_SIZE-1));
DBUG_RETURN((key_cache_write(info->s->key_cache,
keycache_thread_var(),
info->s->kfile,page, level, (uchar*) buff,length,
(uint) keyinfo->block_length,
(int) ((info->lock_type != F_UNLCK) ||
info->s->delay_key_write))));
} /* mi_write_keypage */
int _nisam_write_keypage(register N_INFO *info, register N_KEYDEF *keyinfo,
my_off_t page, uchar *buff)
{
reg3 uint length;
#ifndef QQ /* Safety check */
if (page < info->s->base.keystart ||
page+keyinfo->base.block_length > info->s->state.key_file_length ||
page & (nisam_block_size-1))
{
DBUG_PRINT("error",("Trying to write outside key region: %lu",
(long) page));
my_errno=EINVAL;
return(-1);
}
DBUG_PRINT("page",("write page at: %lu",(long) page,buff));
DBUG_DUMP("buff",(byte*) buff,getint(buff));
#endif
if ((length=keyinfo->base.block_length) > IO_SIZE*2 &&
info->s->state.key_file_length != page+length)
length= ((getint(buff)+IO_SIZE-1) & (uint) ~(IO_SIZE-1));
#ifdef HAVE_purify
{
length=getint(buff);
bzero((byte*) buff+length,keyinfo->base.block_length-length);
length=keyinfo->base.block_length;
}
#endif
return (key_cache_write(info->s->kfile,page,(byte*) buff,length,
(uint) keyinfo->base.block_length,
(int) (info->lock_type != F_UNLCK)));
} /* nisam_write_keypage */
int _nisam_dispose(register N_INFO *info, N_KEYDEF *keyinfo, my_off_t pos)
{
uint keynr= (uint) (keyinfo - info->s->keyinfo);
ulong old_link; /* ulong is ok here */
DBUG_ENTER("_nisam_dispose");
old_link=info->s->state.key_del[keynr];
info->s->state.key_del[keynr]=(ulong) pos;
DBUG_RETURN(key_cache_write(info->s->kfile,pos,(byte*) &old_link,
sizeof(long),
(uint) keyinfo->base.block_length,
(int) (info->lock_type != F_UNLCK)));
} /* _nisam_dispose */
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 */
int _mi_write_keypage(register MI_INFO *info, register MI_KEYDEF *keyinfo,
my_off_t page, int level, uchar *buff)
{
reg3 uint length;
DBUG_ENTER("_mi_write_keypage");
#ifndef FAST /* Safety check */
if (page < info->s->base.keystart ||
page+keyinfo->block_length > info->state->key_file_length ||
(page & (MI_MIN_KEY_BLOCK_LENGTH-1)))
{
DBUG_PRINT("error",("Trying to write inside key status region: key_start: %lu length: %lu page: %lu",
(long) info->s->base.keystart,
(long) info->state->key_file_length,
(long) page));
my_errno=EINVAL;
DBUG_RETURN((-1));
}
DBUG_PRINT("page",("write page at: %lu",(long) page));
DBUG_DUMP("buff",(byte*) buff,mi_getint(buff));
#endif
if ((length=keyinfo->block_length) > IO_SIZE*2 &&
info->state->key_file_length != page+length)
length= ((mi_getint(buff)+IO_SIZE-1) & (uint) ~(IO_SIZE-1));
#ifdef HAVE_purify
{
length=mi_getint(buff);
bzero((byte*) buff+length,keyinfo->block_length-length);
length=keyinfo->block_length;
}
#endif
DBUG_RETURN((key_cache_write(info->s->key_cache,
info->s->kfile,page, level, (byte*) buff,length,
(uint) keyinfo->block_length,
(int) ((info->lock_type != F_UNLCK) ||
info->s->delay_key_write))));
} /* mi_write_keypage */