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Tighten lifecycle management of CN_ANCHOR/CN_ITEM. 

In particular, when a CN_ITEM is freed set all its anchor's
item pointers to NULL.  (The anchors have a separate
lifecycle due to being std::shared_ptrs.)

Hopefully fixes Sentry KICAD-KV.
This commit is contained in:
Jeff Young 2023-05-03 10:44:59 +01:00
parent b53f337938
commit 0eac5c6748
1 changed files with 61 additions and 109 deletions
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162
pcbnew/connectivity/connectivity_items.h
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@ -2,7 +2,7 @@
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2013-2017 CERN
* Copyright (C) 2018-2022 KiCad Developers, see AUTHORS.txt for contributors.
* Copyright (C) 2018-2023 KiCad Developers, see AUTHORS.txt for contributors.
*
* @author Maciej Suminski <maciej.suminski@cern.ch>
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
@ -57,33 +57,23 @@ class CN_CLUSTER;
class CN_ANCHOR
{
public:
CN_ANCHOR()
{
m_item = nullptr;
}
CN_ANCHOR( const VECTOR2I& aPos, CN_ITEM* aItem )
{
m_pos = aPos;
m_item = aItem;
assert( m_item );
}
CN_ANCHOR( const VECTOR2I& aPos, CN_ITEM* aItem ) :
m_pos( aPos ),
m_item( aItem ),
m_tag( -1 ),
m_noline( false )
{ }
bool Valid() const;
bool Dirty() const;
CN_ITEM* Item() const
{
return m_item;
}
CN_ITEM* Item() const { return m_item; }
void SetItem( CN_ITEM* aItem ) { m_item = aItem; }
BOARD_CONNECTED_ITEM* Parent() const;
const VECTOR2I& Pos() const
{
return m_pos;
}
const VECTOR2I& Pos() const { return m_pos; }
void Move( const VECTOR2I& aPos )
{
@ -95,39 +85,16 @@ public:
return ( m_pos - aSecond.Pos() ).EuclideanNorm();
}
///< Return tag, common identifier for connected nodes.
inline int GetTag() const
{
return m_tag;
}
///< @return tag, a common identifier for connected nodes.
int GetTag() const { return m_tag; }
void SetTag( int aTag ) { m_tag = aTag; }
///< Set tag, common identifier for connected nodes.
inline void SetTag( int aTag )
{
m_tag = aTag;
}
///< @return true if this node can be a target for ratsnest lines.
const bool& GetNoLine() const { return m_noline; }
void SetNoLine( bool aEnable ) { m_noline = aEnable; }
///< Decide whether this node can be a ratsnest line target.
inline void SetNoLine( bool aEnable )
{
m_noline = aEnable;
}
///< Return true if this node can be a target for ratsnest lines.
inline const bool& GetNoLine() const
{
return m_noline;
}
inline void SetCluster( std::shared_ptr<CN_CLUSTER>& aCluster )
{
m_cluster = aCluster;
}
inline const std::shared_ptr<CN_CLUSTER>& GetCluster() const
{
return m_cluster;
}
const std::shared_ptr<CN_CLUSTER>& GetCluster() const { return m_cluster; }
void SetCluster( std::shared_ptr<CN_CLUSTER>& aCluster ) { m_cluster = aCluster; }
/**
* The anchor point is dangling if the parent is a track and this anchor point is not
@ -148,9 +115,9 @@ public:
private:
VECTOR2I m_pos; ///< Position of the anchor.
CN_ITEM* m_item = nullptr; ///< Pad or track/arc/via owning the anchor.
int m_tag = -1; ///< Tag for quick connection resolution.
bool m_noline = false; ///< Whether it the node can be a target for ratsnest lines.
CN_ITEM* m_item; ///< Pad or track/arc/via owning the anchor.
int m_tag; ///< Tag for quick connection resolution.
bool m_noline; ///< Whether it the node can be a target for ratsnest lines.
std::shared_ptr<CN_CLUSTER> m_cluster; ///< Cluster to which the anchor belongs.
};
@ -178,7 +145,11 @@ public:
m_connected.reserve( 8 );
}
virtual ~CN_ITEM() {};
virtual ~CN_ITEM()
{
for( const std::shared_ptr<CN_ANCHOR>& anchor : m_anchors )
anchor->SetItem( nullptr );
};
std::shared_ptr<CN_ANCHOR> AddAnchor( const VECTOR2I& aPos )
{
@ -252,14 +223,11 @@ public:
virtual int AnchorCount() const;
virtual const VECTOR2I GetAnchor( int n ) const;
int GetAnchorItemCount() const { return m_anchors.size(); }
std::shared_ptr<CN_ANCHOR> GetAnchorItem( int n ) const { return m_anchors[n]; }
int Net() const
{
return ( !m_parent || !m_valid ) ? -1 : m_parent->GetNetCode();
}
///< allow parallel connection threads
protected:
bool m_dirty; ///< used to identify recently added item not yet
///< scanned into the connectivity search
@ -281,9 +249,10 @@ private:
};
typedef std::shared_ptr<CN_ITEM> CN_ITEM_PTR;
/*
* Represents a single outline of a zone fill on a particular layer. \a aSubpolyIndex indicates
* which outline in the fill's SHAPE_POLY_SET.
*/
class CN_ZONE_LAYER : public CN_ITEM
{
public:
@ -353,15 +322,6 @@ public:
return m_triangulatedPoly->Outline( m_subpolyIndex );
}
VECTOR2I ClosestPoint( const VECTOR2I aPt )
{
VECTOR2I closest;
m_triangulatedPoly->SquaredDistanceToPolygon( aPt, m_subpolyIndex, &closest );
return closest;
}
bool Collide( SHAPE* aRefShape ) const
{
BOX2I bbox = aRefShape->BBox();
@ -400,14 +360,6 @@ private:
class CN_LIST
{
protected:
std::vector<CN_ITEM*> m_items;
void addItemtoTree( CN_ITEM* item )
{
m_index.Insert( item );
}
public:
CN_LIST()
{
@ -424,14 +376,11 @@ public:
m_index.RemoveAll();
}
using ITER = decltype( m_items )::iterator;
using CONST_ITER = decltype( m_items )::const_iterator;
std::vector<CN_ITEM*>::iterator begin() { return m_items.begin(); };
std::vector<CN_ITEM*>::iterator end() { return m_items.end(); };
ITER begin() { return m_items.begin(); };
ITER end() { return m_items.end(); };
CONST_ITER begin() const { return m_items.begin(); }
CONST_ITER end() const { return m_items.end(); }
std::vector<CN_ITEM*>::const_iterator begin() const { return m_items.begin(); }
std::vector<CN_ITEM*>::const_iterator end() const { return m_items.end(); }
CN_ITEM* operator[] ( int aIndex ) { return m_items[aIndex]; }
@ -456,23 +405,25 @@ public:
SetDirty( false );
}
int Size() const
{
return m_items.size();
}
int Size() const { return m_items.size(); }
CN_ITEM* Add( PAD* pad );
CN_ITEM* Add( PCB_TRACK* track );
CN_ITEM* Add( PCB_ARC* track );
CN_ITEM* Add( PCB_VIA* via );
CN_ITEM* Add( CN_ZONE_LAYER* zitem );
const std::vector<CN_ITEM*> Add( ZONE* zone, PCB_LAYER_ID aLayer );
protected:
void addItemtoTree( CN_ITEM* item )
{
m_index.Insert( item );
}
protected:
std::vector<CN_ITEM*> m_items;
private:
bool m_dirty;
bool m_hasInvalid;
@ -482,13 +433,6 @@ private:
class CN_CLUSTER
{
private:
bool m_conflicting;
int m_originNet;
CN_ITEM* m_originPad;
std::vector<CN_ITEM*> m_items;
std::unordered_map<int, int> m_netRanks;
public:
CN_CLUSTER();
~CN_CLUSTER();
@ -504,16 +448,24 @@ public:
int Size() const { return m_items.size(); }
bool IsOrphaned() const { return m_originPad == nullptr; }
bool IsOrphaned() const
{
return m_originPad == nullptr;
}
bool IsConflicting() const { return m_conflicting; }
void Add( CN_ITEM* item );
using ITER = decltype(m_items)::iterator;
std::vector<CN_ITEM*>::iterator begin() { return m_items.begin(); };
std::vector<CN_ITEM*>::iterator end() { return m_items.end(); };
ITER begin() { return m_items.begin(); };
ITER end() { return m_items.end(); };
private:
bool m_conflicting;
int m_originNet;
CN_ITEM* m_originPad;
std::vector<CN_ITEM*> m_items;
std::unordered_map<int, int> m_netRanks;
};