/*
* __wt_page_out --
* Discard an in-memory page, freeing all memory associated with it.
*/
void
__wt_page_out(WT_SESSION_IMPL *session, WT_PAGE *page, uint32_t flags)
{
/*
* When a page is discarded, it's been disconnected from its parent and
* parent's WT_REF structure may now point to a different page. Make
* sure we don't use any of that information by accident.
*/
page->parent = NULL;
page->ref = NULL;
WT_ASSERT(session, !F_ISSET(page, WT_PAGE_EVICT_LRU));
/* If not a split merged into its parent, the page must be clean. */
WT_ASSERT(session,
!__wt_page_is_modified(page) ||
F_ISSET(page, WT_PAGE_REC_SPLIT_MERGE));
#ifdef HAVE_DIAGNOSTIC
__wt_hazard_validate(session, page);
#endif
/*
* If this page has a memory footprint associated with it, update
* the cache information.
*/
if (page->memory_footprint != 0)
__wt_cache_page_evict(session, page);
switch (page->type) {
case WT_PAGE_COL_FIX:
__free_page_col_fix(session, page);
break;
case WT_PAGE_COL_INT:
__free_page_col_int(session, page);
break;
case WT_PAGE_COL_VAR:
__free_page_col_var(session, page);
break;
case WT_PAGE_ROW_INT:
__free_page_row_int(session, page);
break;
case WT_PAGE_ROW_LEAF:
__free_page_row_leaf(session, page);
break;
}
if (!LF_ISSET(WT_PAGE_FREE_IGNORE_DISK)) /* Disk image */
__wt_free(session, page->dsk);
if (page->modify != NULL) { /* WT_PAGE_MODIFY */
__wt_free(session, page->modify->track);
__wt_free(session, page->modify);
}
#ifdef HAVE_DIAGNOSTIC
memset(page, WT_DEBUG_BYTE, sizeof(WT_PAGE));
#endif
__wt_free(session, page);
}
/*
* __wt_page_out --
* Discard an in-memory page, freeing all memory associated with it.
*/
void
__wt_page_out(WT_SESSION_IMPL *session, WT_PAGE **pagep)
{
WT_PAGE *page;
/*
* When a page is discarded, it's been disconnected from its parent and
* its parent's WT_REF structure may now point to a different page.
* Make sure we don't accidentally use the page itself or any other
* information.
*/
page = *pagep;
*pagep = NULL;
page->parent = NULL;
page->ref = NULL;
WT_ASSERT(session, !F_ISSET_ATOMIC(page, WT_PAGE_EVICT_LRU));
#ifdef HAVE_DIAGNOSTIC
{
WT_HAZARD *hp;
if ((hp = __wt_page_hazard_check(session, page)) != NULL)
__wt_errx(session,
"discarded page has hazard pointer: (%p: %s, line %d)",
hp->page, hp->file, hp->line);
}
#endif
/* Update the cache's information. */
__wt_cache_page_evict(session, page);
/* Free the page modification information. */
if (page->modify != NULL)
__free_page_modify(session, page);
switch (page->type) {
case WT_PAGE_COL_FIX:
break;
case WT_PAGE_COL_INT:
__free_page_col_int(session, page);
break;
case WT_PAGE_COL_VAR:
__free_page_col_var(session, page);
break;
case WT_PAGE_ROW_INT:
__free_page_row_int(session, page);
break;
case WT_PAGE_ROW_LEAF:
__free_page_row_leaf(session, page);
break;
}
/* Free any allocated disk image. */
if (!F_ISSET_ATOMIC(page, WT_PAGE_DISK_NOT_ALLOC))
__wt_free(session, page->dsk);
__wt_overwrite_and_free(session, page);
}
