/*
* __wt_bm_corrupt --
* Report a block has been corrupted, external API.
*/
int
__wt_bm_corrupt(WT_BM *bm,
WT_SESSION_IMPL *session, const uint8_t *addr, size_t addr_size)
{
WT_DECL_ITEM(tmp);
WT_DECL_RET;
wt_off_t offset;
uint32_t checksum, size;
/* Read the block. */
WT_RET(__wt_scr_alloc(session, 0, &tmp));
WT_ERR(__wt_bm_read(bm, session, tmp, addr, addr_size));
/* Crack the cookie, dump the block. */
WT_ERR(__wt_block_buffer_to_addr(
bm->block, addr, &offset, &size, &checksum));
WT_ERR(__wt_bm_corrupt_dump(session, tmp, offset, size, checksum));
err: __wt_scr_free(session, &tmp);
return (ret);
}
/*
* __wt_bm_preload --
* Pre-load a page.
*/
int
__wt_bm_preload(
WT_BM *bm, WT_SESSION_IMPL *session, const uint8_t *addr, size_t addr_size)
{
WT_BLOCK *block;
WT_DECL_ITEM(tmp);
WT_DECL_RET;
WT_FILE_HANDLE *handle;
wt_off_t offset;
uint32_t cksum, size;
bool mapped;
WT_UNUSED(addr_size);
block = bm->block;
WT_STAT_FAST_CONN_INCR(session, block_preload);
/* Crack the cookie. */
WT_RET(__wt_block_buffer_to_addr(block, addr, &offset, &size, &cksum));
handle = block->fh->handle;
mapped = bm->map != NULL && offset + size <= (wt_off_t)bm->maplen;
if (mapped && handle->fh_map_preload != NULL)
ret = handle->fh_map_preload(handle, (WT_SESSION *)session,
(uint8_t *)bm->map + offset, size, bm->mapped_cookie);
if (!mapped && handle->fh_advise != NULL)
ret = handle->fh_advise(handle, (WT_SESSION *)session,
(wt_off_t)offset, (wt_off_t)size, WT_FILE_HANDLE_WILLNEED);
if (ret != EBUSY && ret != ENOTSUP)
return (ret);
/* If preload isn't supported, do it the slow way. */
WT_RET(__wt_scr_alloc(session, 0, &tmp));
ret = __wt_bm_read(bm, session, tmp, addr, addr_size);
__wt_scr_free(session, &tmp);
return (ret);
}
