firebird/firebird-mirror
firebird/firebird-mirror
8
0
Fork 1
mirror of https://github.com/FirebirdSQL/firebird.git synced 2025-01-23 18:03:04 +01:00
Code Issues

Fixed bug CORE-2936 : Wrong page type (expected 7 found N) error

Browse Source
This commit is contained in:
hvlad 2010-03-22 22:39:18 +00:00
parent bb1058f6da
commit 0615f7a8a1
2 changed files with 40 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
src/jrd/btr.cpp
View File

@ -1895,6 +1895,10 @@ void BTR_remove(thread_db* tdbb, WIN * root_window, index_insertion* insertion)
// on the free list, making sure the root page is written out first
// so that we're not pointing to a released page
CCH_RELEASE(tdbb, root_window);
CCH_MARK(tdbb, &window);
page->btr_header.pag_flags |= btr_released;
CCH_RELEASE(tdbb, &window);
PAG_release_page(window.win_page, root_window->win_page);
}
@ -4925,6 +4929,15 @@ static CONTENTS garbage_collect(thread_db* tdbb, WIN * window, SLONG parent_numb
return contents_above_threshold;
}
if (parent_page->btr_header.pag_flags & btr_released)
{
CCH_RELEASE(tdbb, &parent_window);
#ifdef DEBUG_BTR
gds__log("BTR/garbage_collect : parent page is released.");
#endif
return contents_above_threshold;
}
// Find the node on the parent's level--the parent page could
// have split while we didn't have it locked
UCHAR *parentPointer = BTreeNode::getPointerFirstNode(parent_page);
@ -4990,6 +5003,17 @@ static CONTENTS garbage_collect(thread_db* tdbb, WIN * window, SLONG parent_numb
return contents_above_threshold;
}
if (left_page->btr_header.pag_flags & btr_released)
{
CCH_RELEASE(tdbb, &parent_window);
CCH_RELEASE(tdbb, &left_window);
#ifdef DEBUG_BTR
gds__log("BTR/garbage_collect : left page is released.");
#endif
return contents_above_threshold;
}
while (left_page->btr_sibling != window->win_page.getPageNum()) {
#ifdef DEBUG_BTR
CCH_RELEASE(tdbb, &parent_window);
@ -5020,6 +5044,18 @@ static CONTENTS garbage_collect(thread_db* tdbb, WIN * window, SLONG parent_numb
return contents_above_threshold;
}
if (gc_page->btr_header.pag_flags & btr_released)
{
CCH_RELEASE(tdbb, &parent_window);
CCH_RELEASE(tdbb, &left_window);
CCH_RELEASE(tdbb, window);
#ifdef DEBUG_BTR
gds__log("BTR/garbage_collect : gc_page is released.");
CORRUPT(204); // msg 204 index inconsistent
#endif
return contents_above_threshold;
}
// fetch the right sibling page
btree_page* right_page = NULL;
WIN right_window(pageSpaceID, gc_page->btr_sibling);
@ -5381,6 +5417,9 @@ static CONTENTS garbage_collect(thread_db* tdbb, WIN * window, SLONG parent_numb
// finally, release the page, and indicate that we should write the
// previous page out before we write the TIP page out
CCH_MARK(tdbb, window);
gc_page->btr_header.pag_flags |= btr_released;
CCH_RELEASE(tdbb, window);
PAG_release_page(window->win_page, left_page ? left_window.win_page :
right_page ? right_window.win_page : parent_window.win_page);

1
src/jrd/ods.h
View File

@ -279,6 +279,7 @@ const UCHAR btr_descending = 8; // Page/bucket is part of a descending index
const UCHAR btr_all_record_number = 16; // Non-leaf-nodes will contain record number information
const UCHAR btr_large_keys = 32; // AB: 2003-index-structure enhancement
const UCHAR btr_jump_info = 64; // AB: 2003-index-structure enhancement
const UCHAR btr_released = 128; // Page was released from b-tree
const UCHAR BTR_FLAG_COPY_MASK = (btr_descending | btr_all_record_number | btr_large_keys | btr_jump_info);