new upstream release 1.2.1
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David Tardon
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.gitignore
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@ -23,3 +23,4 @@ mdds_0.3.0.tar.bz2
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/mdds_0.12.1.tar.bz2
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/mdds-1.1.0.tar.bz2
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/mdds-1.2.0.tar.bz2
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/mdds-1.2.1.tar.bz2
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@ -1,91 +0,0 @@
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From 586230c6bc2b7ecb285d9eb9a0e3898c074791bf Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
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Date: Fri, 17 Jun 2016 15:24:58 +0100
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Subject: [PATCH] Resolves: tdf#90579 crash on undo formula-to-value on two
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formula cells
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when the two cells have different formula.
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On the undo we go from a single block of no-formulas to two blocks of one
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formula each and the ScFormulaCell*s which belong to the undo are deleted
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when they are transferred back to the ScDoc. Their pointers are still
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use but they are now dangling pointers.
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so on the undo...
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in include/mdds/multi_type_vector_def.inl we enter
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::swap_single_to_multi_blocks
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and do...
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// Get the new elements from the other container.
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blocks_type new_blocks;
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other.exchange_elements(
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*blk_src->mp_data, src_offset, dst_block_index1, dst_offset1, dst_block_index2, dst_offset2, len, new_blocks);
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in ::exchange_elements
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after
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element_block_func::assign_values_from_block(*blk->mp_data, src_data, src_offset, len);
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using gdb and...
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print ((const mdds::mtv::noncopyable_managed_element_block<54, ScFormulaCell> *)(m_blocks[0]->mp_data))->m_array[0]
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we can see that other now has the value of the ScFormulaCell* that will be deleted
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on return back to ::swap_single_to_multi_blocks we go to the src_offset == 0 and src_tail_len == 0 case which is
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if (src_tail_len == 0)
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{
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// the whole block needs to be replaced.
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delete_block(blk_src);
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m_blocks.erase(m_blocks.begin()+block_index);
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}
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print ((const mdds::mtv::noncopyable_managed_element_block<54, ScFormulaCell> *)(blk_src->mp_data))->m_array[0]
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confirms that our ScFormulaCell* is here also and delete_block deletes the full
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block and deletes the m_array which deletes the ScFormulaCell* and so its
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deleted there while also still assigned in the new_block above.
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The new block goes on to be inserted, but its all broken now because it refers
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to dead data.
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Presumably we need to either clear the part of the block that will be deleted
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of its transferred data at exchange time. Or overwrite its data with zero. Or
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swap at exchange time instead of copy. Or something of that nature anyway.
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Here I go with calling element_block_func::erase whether or not we delete the
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block which seems to do the right thing. Crash goes away anyway and make check
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here and there passes.
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---
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include/mdds/multi_type_vector_def.inl | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/include/mdds/multi_type_vector_def.inl b/include/mdds/multi_type_vector_def.inl
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index 0e2a15a..fe9c767 100644
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--- a/include/mdds/multi_type_vector_def.inl
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+++ b/include/mdds/multi_type_vector_def.inl
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@@ -2306,6 +2306,9 @@ void multi_type_vector<_CellBlockFunc, _EventFunc>::swap_single_to_multi_blocks(
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{
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// Source range is at the top of a block.
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+ // Shrink the current block by erasing the top part.
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+ element_block_func::erase(*blk_src->mp_data, 0, len);
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+
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if (src_tail_len == 0)
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{
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// the whole block needs to be replaced.
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@@ -2314,8 +2317,6 @@ void multi_type_vector<_CellBlockFunc, _EventFunc>::swap_single_to_multi_blocks(
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}
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else
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{
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- // Shrink the current block by erasing the top part.
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- element_block_func::erase(*blk_src->mp_data, 0, len);
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blk_src->m_size -= len;
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}
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--
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2.7.4
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@ -4,8 +4,8 @@
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%global apiversion 1.2
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Name: mdds
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Version: 1.2.0
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Release: 2%{?dist}
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Version: 1.2.1
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Release: 1%{?dist}
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Summary: A collection of multi-dimensional data structures and indexing algorithms
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Group: Development/Libraries
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@ -13,8 +13,6 @@ License: MIT
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URL: https://gitlab.com/mdds/mdds
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Source0: http://kohei.us/files/%{name}/src/%{name}-%{version}.tar.bz2
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Patch0: 0001-Resolves-tdf-90579-crash-on-undo-formula-to-value-on.patch
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BuildRequires: boost-devel
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%description
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@ -62,6 +60,9 @@ make check %{?_smp_mflags}
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%license LICENSE
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%changelog
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* Mon Jun 27 2016 David Tardon <dtardon@redhat.com> - 1.2.1-1
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- new upstream release
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* Wed Jun 22 2016 David Tardon <dtardon@redhat.com> - 1.2.0-2
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- fix double delete in mtv::swap
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