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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2022 KiCad Developers.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/gpl-3.0.html
* or you may search the http://www.gnu.org website for the version 3 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <algorithm>
#include <atomic>
#include <deque>
#include <optional>
#include <utility>
#include <wx/debug.h>
#include <board.h>
#include <board_connected_item.h>
#include <board_design_settings.h>
#include <drc/drc_rule.h>
#include <drc/drc_item.h>
#include <drc/drc_test_provider.h>
#include <drc/drc_rtree.h>
#include <drc/drc_rule_condition.h>
#include <footprint.h>
#include <geometry/seg.h>
#include <geometry/shape_poly_set.h>
#include <math/box2.h>
#include <math/vector2d.h>
#include <pcb_shape.h>
#include <progress_reporter.h>
#include <thread_pool.h>
#include <pcb_track.h>
#include <pad.h>
#include <zone.h>
/*
Checks for copper connections that are less than the specified minimum width
Errors generated:
- DRCE_CONNECTION_WIDTH
*/
struct NETCODE_LAYER_CACHE_KEY
{
int Netcode;
PCB_LAYER_ID Layer;
bool operator==(const NETCODE_LAYER_CACHE_KEY& other) const
{
return Netcode == other.Netcode && Layer == other.Layer;
}
};
namespace std
{
template <>
struct hash<NETCODE_LAYER_CACHE_KEY>
{
std::size_t operator()( const NETCODE_LAYER_CACHE_KEY& k ) const
{
constexpr std::size_t prime = 19937;
return hash<int>()( k.Netcode ) ^ ( hash<int>()( k.Layer ) * prime );
}
};
}
class DRC_TEST_PROVIDER_CONNECTION_WIDTH : public DRC_TEST_PROVIDER
{
public:
DRC_TEST_PROVIDER_CONNECTION_WIDTH()
{
}
virtual ~DRC_TEST_PROVIDER_CONNECTION_WIDTH()
{
}
virtual bool Run() override;
virtual const wxString GetName() const override
{
return wxT( "copper width" );
};
virtual const wxString GetDescription() const override
{
return wxT( "Checks copper nets for connections less than a specified minimum" );
}
private:
wxString layerDesc( PCB_LAYER_ID aLayer );
};
class POLYGON_TEST
{
public:
POLYGON_TEST( int aLimit, int aErrorLimit ) :
m_limit( aLimit ), m_max_error( aErrorLimit )
{
};
bool FindPairs( const SHAPE_LINE_CHAIN& aPoly )
{
m_hits.clear();
m_vertices.clear();
m_bbox = aPoly.BBox();
createList( aPoly );
m_vertices.front().updateList();
Vertex* p = m_vertices.front().next;
std::set<Vertex*> all_hits;
while( p != &m_vertices.front() )
{
Vertex* match = nullptr;
// Only run the expensive search if we don't already have a match for the point
if( ( all_hits.empty() || all_hits.count( p ) == 0 ) && ( match = getKink( p ) ) )
{
if( !all_hits.count( match ) && m_hits.emplace( p->i, match->i ).second )
{
all_hits.emplace( p );
all_hits.emplace( match );
all_hits.emplace( p->next );
all_hits.emplace( p->prev );
all_hits.emplace( match->next );
all_hits.emplace( match->prev );
}
}
p = p->next;
}
return !m_hits.empty();
}
std::set<std::pair<int, int>>& GetVertices()
{
return m_hits;
}
private:
struct Vertex
{
Vertex( int aIndex, double aX, double aY, POLYGON_TEST* aParent ) :
i( aIndex ),
x( aX ),
y( aY ),
parent( aParent )
{
}
Vertex& operator=( const Vertex& ) = delete;
Vertex& operator=( Vertex&& ) = delete;
bool operator==( const Vertex& rhs ) const
{
return this->x == rhs.x && this->y == rhs.y;
}
bool operator!=( const Vertex& rhs ) const { return !( *this == rhs ); }
/**
* Remove the node from the linked list and z-ordered linked list.
*/
void remove()
{
next->prev = prev;
prev->next = next;
if( prevZ )
prevZ->nextZ = nextZ;
if( nextZ )
nextZ->prevZ = prevZ;
next = nullptr;
prev = nullptr;
nextZ = nullptr;
prevZ = nullptr;
}
void updateOrder()
{
if( !z )
z = parent->zOrder( x, y );
}
/**
* After inserting or changing nodes, this function should be called to
* remove duplicate vertices and ensure z-ordering is correct.
*/
void updateList()
{
Vertex* p = next;
while( p != this )
{
/**
* Remove duplicates
*/
if( *p == *p->next )
{
p = p->prev;
p->next->remove();
if( p == p->next )
break;
}
p->updateOrder();
p = p->next;
};
updateOrder();
zSort();
}
/**
* Sort all vertices in this vertex's list by their Morton code.
*/
void zSort()
{
std::deque<Vertex*> queue;
queue.push_back( this );
for( Vertex* p = next; p && p != this; p = p->next )
queue.push_back( p );
std::sort( queue.begin(), queue.end(), []( const Vertex* a, const Vertex* b )
{
return a->z < b->z || ( a->z == b->z
&& ( ( a->x < b->x )
|| ( a->y < b->y )
|| ( a->i < b->i ) ) );
} );
Vertex* prev_elem = nullptr;
for( Vertex* elem : queue )
{
if( prev_elem )
prev_elem->nextZ = elem;
elem->prevZ = prev_elem;
prev_elem = elem;
}
prev_elem->nextZ = nullptr;
}
const int i;
const double x;
const double y;
POLYGON_TEST* parent;
// previous and next vertices nodes in a polygon ring
Vertex* prev = nullptr;
Vertex* next = nullptr;
// z-order curve value
int32_t z = 0;
// previous and next nodes in z-order
Vertex* prevZ = nullptr;
Vertex* nextZ = nullptr;
};
/**
* Calculate the Morton code of the Vertex
* http://www.graphics.stanford.edu/~seander/bithacks.html#InterleaveBMN
*
*/
int32_t zOrder( const double aX, const double aY ) const
{
int32_t x = static_cast<int32_t>( 32767.0 * ( aX - m_bbox.GetX() ) / m_bbox.GetWidth() );
int32_t y = static_cast<int32_t>( 32767.0 * ( aY - m_bbox.GetY() ) / m_bbox.GetHeight() );
x = ( x | ( x << 8 ) ) & 0x00FF00FF;
x = ( x | ( x << 4 ) ) & 0x0F0F0F0F;
x = ( x | ( x << 2 ) ) & 0x33333333;
x = ( x | ( x << 1 ) ) & 0x55555555;
y = ( y | ( y << 8 ) ) & 0x00FF00FF;
y = ( y | ( y << 4 ) ) & 0x0F0F0F0F;
y = ( y | ( y << 2 ) ) & 0x33333333;
y = ( y | ( y << 1 ) ) & 0x55555555;
return x | ( y << 1 );
}
constexpr bool same_point( const Vertex* aA, const Vertex* aB ) const
{
return aA && aB && aA->x == aB->x && aA->y == aB->y;
}
Vertex* getNextOutlineVertex( const Vertex* aPt ) const
{
Vertex* nz = aPt->nextZ;
Vertex* pz = aPt->prevZ;
// If we hit a fracture point, we want to continue around the
// edge we are working on and not switch to the pair edge
// However, this will depend on which direction the initial
// fracture hit is. If we find that we skip directly to
// a new fracture point, then we know that we are proceeding
// in the wrong direction from the fracture and should
// fall through to the next point
if( same_point( aPt, nz )
&& !( same_point( nz->next, nz->next->prevZ ) || same_point( nz->next, nz->next->nextZ ) ) )
{
return nz->next;
}
else if( same_point( aPt, pz )
&& !( same_point( pz->next, pz->next->prevZ ) || same_point( pz->next, pz->next->nextZ ) ) )
{
return pz->next;
}
return aPt->next;
}
Vertex* getPrevOutlineVertex( const Vertex* aPt ) const
{
Vertex* nz = aPt->nextZ;
Vertex* pz = aPt->prevZ;
// If we hit a fracture point, we want to continue around the
// edge we are working on and not switch to the pair edge
// However, this will depend on which direction the initial
// fracture hit is. If we find that we skip directly to
// a new fracture point, then we know that we are proceeding
// in the wrong direction from the fracture and should
// fall through to the next point
if( same_point( aPt, nz )
&& !( same_point( nz->prev, nz->prev->nextZ ) || same_point( nz->prev, nz->prev->prevZ ) ) )
{
return nz->prev;
}
else if( same_point( aPt, pz )
&& !( same_point( pz->prev, pz->prev->nextZ ) || same_point( pz->prev, pz->prev->prevZ ) ) )
{
return pz->prev;
}
return aPt->prev;
}
/**
* Checks to see if there is a "substantial" protrusion in each polygon produced by the cut from
* aA to aB. Substantial in this case means that the polygon bulges out to a wider cross-section
* than the distance from aA to aB
* @param aA Starting point in the polygon
* @param aB Ending point in the polygon
* @return True if the two polygons are both "substantial"
*/
bool isSubstantial( const Vertex* aA, const Vertex* aB ) const
{
// `directions` is a bitfield where
// bit 0 = pos y
// bit 1 = neg y
// bit 2 = pos x
// bit 3 = neg x
// So, once directions = 15, we have all directions
int directions = 0;
constexpr int all_dirs = 0b1111;
// This is a failsafe in case of invalid lists. Never check
// more than the total number of points in m_vertices
size_t checked = 0;
size_t total_pts = m_vertices.size();
const Vertex* p0 = aA;
const Vertex* p = getNextOutlineVertex( p0 );
while( !same_point( p0, aB ) && checked < total_pts && directions != all_dirs )
{
double diff_x = std::abs( p->x - p0->x );
double diff_y = std::abs( p->y - p0->y );
// Floating point zeros can have a negative sign, so we need to
// ensure that only substantive diversions count for a direction
// change
if( diff_x > m_max_error )
directions |= ( 1 << ( 2 + std::signbit( p->x - p0->x ) ) );
if( diff_y > m_max_error )
directions |= ( 1 << std::signbit( p->y - p0->y ) );
// In the case of a circle, we need to eventually get the direction
// so keep the p0 at the same point
if( diff_x > m_max_error || diff_y > m_max_error || p == aB )
p0 = p;
if( same_point( p, p->nextZ ) )
p = p->nextZ->next;
else if( same_point( p, p->prevZ ) )
p = p->prevZ->next;
else
p = p->next;
++checked;
}
wxCHECK_MSG( checked < total_pts, false, wxT( "Invalid polygon detected. Missing points to check" ) );
if( directions != all_dirs )
return false;
p0 = aA;
p = getPrevOutlineVertex( p0 );
directions = 0;
checked = 0;
while( !same_point( p0, aB ) && checked < total_pts && directions != all_dirs )
{
double diff_x = std::abs( p->x - p0->x );
double diff_y = std::abs( p->y - p0->y );
// Floating point zeros can have a negative sign, so we need to
// ensure that only substantive diversions count for a direction
// change
if( diff_x > m_max_error )
directions |= ( 1 << ( 2 + std::signbit( p->x - p0->x ) ) );
if( diff_y > m_max_error )
directions |= ( 1 << std::signbit( p->y - p0->y ) );
// In the case of a circle, we need to eventually get the direction
// so keep the p0 at the same point
if( diff_x > m_max_error || diff_y > m_max_error || p == aB )
p0 = p;
if( same_point( p, p->nextZ ) )
p = p->nextZ->prev;
else if( same_point( p, p->prevZ ) )
p = p->prevZ->prev;
else
p = p->prev;
++checked;
}
wxCHECK_MSG( checked < total_pts, false, wxT( "Invalid polygon detected. Missing points to check" ) );
return ( directions == all_dirs );
}
/**
* Take a #SHAPE_LINE_CHAIN and links each point into a circular, doubly-linked list.
*/
Vertex* createList( const SHAPE_LINE_CHAIN& points )
{
Vertex* tail = nullptr;
double sum = 0.0;
// Check for winding order
for( int i = 0; i < points.PointCount(); i++ )
{
VECTOR2D p1 = points.CPoint( i );
VECTOR2D p2 = points.CPoint( i + 1 );
sum += ( ( p2.x - p1.x ) * ( p2.y + p1.y ) );
}
if( sum > 0.0 )
{
for( int i = points.PointCount() - 1; i >= 0; i--)
tail = insertVertex( i, points.CPoint( i ), tail );
}
else
{
for( int i = 0; i < points.PointCount(); i++ )
tail = insertVertex( i, points.CPoint( i ), tail );
}
if( tail && ( *tail == *tail->next ) )
{
tail->next->remove();
}
return tail;
}
Vertex* getKink( Vertex* aPt ) const
{
// The point needs to be at a concave surface
if( locallyInside( aPt->prev, aPt->next ) )
return nullptr;
// z-order range for the current point ± limit bounding box
const int32_t maxZ = zOrder( aPt->x + m_limit, aPt->y + m_limit );
const int32_t minZ = zOrder( aPt->x - m_limit, aPt->y - m_limit );
const SEG::ecoord limit2 = SEG::Square( m_limit );
// first look for points in increasing z-order
Vertex* p = aPt->nextZ;
SEG::ecoord min_dist = std::numeric_limits<SEG::ecoord>::max();
Vertex* retval = nullptr;
while( p && p->z <= maxZ )
{
int delta_i = std::abs( p->i - aPt->i );
VECTOR2D diff( p->x - aPt->x, p->y - aPt->y );
SEG::ecoord dist2 = diff.SquaredEuclideanNorm();
if( delta_i > 1 && dist2 < limit2 && dist2 < min_dist && dist2 > 0.0
&& locallyInside( p, aPt ) && isSubstantial( p, aPt ) )
{
min_dist = dist2;
retval = p;
}
p = p->nextZ;
}
p = aPt->prevZ;
while( p && p->z >= minZ )
{
int delta_i = std::abs( p->i - aPt->i );
VECTOR2D diff( p->x - aPt->x, p->y - aPt->y );
SEG::ecoord dist2 = diff.SquaredEuclideanNorm();
if( delta_i > 1 && dist2 < limit2 && dist2 < min_dist && dist2 > 0.0
&& locallyInside( p, aPt ) && isSubstantial( p, aPt ) )
{
min_dist = dist2;
retval = p;
}
p = p->prevZ;
}
return retval;
}
/**
* Return the twice the signed area of the triangle formed by vertices p, q, and r.
*/
double area( const Vertex* p, const Vertex* q, const Vertex* r ) const
{
return ( q->y - p->y ) * ( r->x - q->x ) - ( q->x - p->x ) * ( r->y - q->y );
}
/**
* Check whether the segment from vertex a -> vertex b is inside the polygon
* around the immediate area of vertex a.
*
* We don't define the exact area over which the segment is inside but it is guaranteed to
* be inside the polygon immediately adjacent to vertex a.
*
* @return true if the segment from a->b is inside a's polygon next to vertex a.
*/
bool locallyInside( const Vertex* a, const Vertex* b ) const
{
const Vertex* an = getNextOutlineVertex( a );
const Vertex* ap = getPrevOutlineVertex( a );
if( area( ap, a, an ) < 0 )
return area( a, b, an ) >= 0 && area( a, ap, b ) >= 0;
else
return area( a, b, ap ) < 0 || area( a, an, b ) < 0;
}
/**
* Create an entry in the vertices lookup and optionally inserts the newly created vertex
* into an existing linked list.
*
* @return a pointer to the newly created vertex.
*/
Vertex* insertVertex( int aIndex, const VECTOR2I& pt, Vertex* last )
{
m_vertices.emplace_back( aIndex, pt.x, pt.y, this );
Vertex* p = &m_vertices.back();
if( !last )
{
p->prev = p;
p->next = p;
}
else
{
p->next = last->next;
p->prev = last;
last->next->prev = p;
last->next = p;
}
return p;
}
private:
int m_limit;
double m_max_error;
BOX2I m_bbox;
std::deque<Vertex> m_vertices;
std::set<std::pair<int, int>> m_hits;
};
wxString DRC_TEST_PROVIDER_CONNECTION_WIDTH::layerDesc( PCB_LAYER_ID aLayer )
{
return wxString::Format( wxT( "(%s)" ), m_drcEngine->GetBoard()->GetLayerName( aLayer ) );
}
bool DRC_TEST_PROVIDER_CONNECTION_WIDTH::Run()
{
if( m_drcEngine->IsErrorLimitExceeded( DRCE_CONNECTION_WIDTH ) )
return true; // Continue with other tests
if( !reportPhase( _( "Checking nets for minimum connection width..." ) ) )
return false; // DRC cancelled
LSET copperLayerSet = m_drcEngine->GetBoard()->GetEnabledLayers() & LSET::AllCuMask();
LSEQ copperLayers = copperLayerSet.Seq();
BOARD* board = m_drcEngine->GetBoard();
/*
* Build a set of distinct minWidths specified by various DRC rules. We'll run a test for
* each distinct minWidth, and then decide if any copper which failed that minWidth actually
* was required to abide by it or not.
*/
std::set<int> distinctMinWidths
= m_drcEngine->QueryDistinctConstraints( CONNECTION_WIDTH_CONSTRAINT );
if( m_drcEngine->IsCancelled() )
return false; // DRC cancelled
struct ITEMS_POLY
{
std::set<BOARD_ITEM*> Items;
SHAPE_POLY_SET Poly;
};
std::unordered_map<NETCODE_LAYER_CACHE_KEY, ITEMS_POLY> dataset;
std::atomic<size_t> done( 1 );
auto calc_effort =
[&]( const std::set<BOARD_ITEM*>& items, PCB_LAYER_ID aLayer ) -> size_t
{
size_t effort = 0;
for( BOARD_ITEM* item : items )
{
if( item->Type() == PCB_ZONE_T )
{
ZONE* zone = static_cast<ZONE*>( item );
effort += zone->GetFilledPolysList( aLayer )->FullPointCount();
}
else
{
effort += 4;
}
}
return effort;
};
/*
* For each net, on each layer, build a polygonSet which contains all the copper associated
* with that net on that layer.
*/
auto build_netlayer_polys =
[&]( int aNetcode, const PCB_LAYER_ID aLayer ) -> size_t
{
if( m_drcEngine->IsCancelled() )
return 0;
ITEMS_POLY& itemsPoly = dataset[ { aNetcode, aLayer } ];
for( BOARD_ITEM* item : itemsPoly.Items )
{
item->TransformShapeToPolygon( itemsPoly.Poly, aLayer, 0, ARC_HIGH_DEF,
ERROR_OUTSIDE );
}
itemsPoly.Poly.Fracture( SHAPE_POLY_SET::PM_FAST );
done.fetch_add( calc_effort( itemsPoly.Items, aLayer ) );
return 1;
};
/*
* Examine all necks in a given polygonSet which fail a given minWidth.
*/
auto min_checker =
[&]( const ITEMS_POLY& aItemsPoly, const PCB_LAYER_ID aLayer, int aMinWidth ) -> size_t
{
if( m_drcEngine->IsCancelled() )
return 0;
POLYGON_TEST test( aMinWidth, m_drcEngine->GetDesignSettings()->m_MaxError );
for( int ii = 0; ii < aItemsPoly.Poly.OutlineCount(); ++ii )
{
const SHAPE_LINE_CHAIN& chain = aItemsPoly.Poly.COutline( ii );
test.FindPairs( chain );
auto& ret = test.GetVertices();
for( const std::pair<int, int>& pt : ret )
{
/*
* We've found a neck that fails the given aMinWidth. We now need to know
* if the objects the produced the copper at this location are required to
* abide by said aMinWidth or not. (If so, we have a violation.)
*
* We find the contributingItems by hit-testing at the choke point (the
* centre point of the neck), and then run the rules engine on those
* contributingItems. If the reported constraint matches aMinWidth, then
* we've got a violation.
*/
SEG span( chain.CPoint( pt.first ), chain.CPoint( pt.second ) );
VECTOR2I location = ( span.A + span.B ) / 2;
int dist = ( span.A - span.B ).EuclideanNorm();
std::vector<BOARD_ITEM*> contributingItems;
for( auto* item : board->m_CopperItemRTreeCache->GetObjectsAt( location,
aLayer,
aMinWidth ) )
{
if( item->HitTest( location, aMinWidth ) )
contributingItems.push_back( item );
}
for( auto& [ zone, rtree ] : board->m_CopperZoneRTreeCache )
{
if( !rtree->GetObjectsAt( location, aLayer, aMinWidth ).empty()
&& zone->HitTestFilledArea( aLayer, location, aMinWidth ) )
{
contributingItems.push_back( zone );
}
}
if( !contributingItems.empty() )
{
BOARD_ITEM* item1 = contributingItems[0];
BOARD_ITEM* item2 = contributingItems.size() > 1 ? contributingItems[1]
: nullptr;
DRC_CONSTRAINT c = m_drcEngine->EvalRules( CONNECTION_WIDTH_CONSTRAINT,
item1, item2, aLayer );
if( c.Value().Min() == aMinWidth )
{
auto drce = DRC_ITEM::Create( DRCE_CONNECTION_WIDTH );
wxString msg;
msg = formatMsg( _( "(%s minimum connection width %s; actual %s)" ),
c.GetName(),
aMinWidth,
dist );
msg += wxS( " " ) + layerDesc( aLayer );
drce->SetErrorMessage( drce->GetErrorText() + wxS( " " ) + msg );
drce->SetViolatingRule( c.GetParentRule() );
for( BOARD_ITEM* item : contributingItems )
drce->AddItem( item );
reportViolation( drce, location, aLayer );
}
}
}
}
done.fetch_add( calc_effort( aItemsPoly.Items, aLayer ) );
return 1;
};
for( PCB_LAYER_ID layer : copperLayers )
{
for( ZONE* zone : board->m_DRCCopperZones )
{
if( !zone->GetIsRuleArea() && zone->IsOnLayer( layer ) )
dataset[ { zone->GetNetCode(), layer } ].Items.emplace( zone );
}
for( PCB_TRACK* track : board->Tracks() )
{
if( PCB_VIA* via = dynamic_cast<PCB_VIA*>( track ) )
{
if( via->FlashLayer( static_cast<int>( layer ) ) )
dataset[ { via->GetNetCode(), layer } ].Items.emplace( via );
}
else if( track->IsOnLayer( layer ) )
{
dataset[ { track->GetNetCode(), layer } ].Items.emplace( track );
}
}
for( FOOTPRINT* fp : board->Footprints() )
{
for( PAD* pad : fp->Pads() )
{
if( pad->FlashLayer( static_cast<int>( layer ) ) )
dataset[ { pad->GetNetCode(), layer } ].Items.emplace( pad );
}
// Footprint zones are also in the m_DRCCopperZones cache
}
}
thread_pool& tp = GetKiCadThreadPool();
std::vector<std::future<size_t>> returns;
size_t total_effort = 0;
for( const auto& [ netLayer, itemsPoly ] : dataset )
total_effort += calc_effort( itemsPoly.Items, netLayer.Layer );
total_effort += std::max( (size_t) 1, total_effort ) * distinctMinWidths.size();
returns.reserve( dataset.size() );
for( const auto& [ netLayer, itemsPoly ] : dataset )
{
returns.emplace_back( tp.submit( build_netlayer_polys, netLayer.Netcode, netLayer.Layer ) );
}
for( std::future<size_t>& ret : returns )
{
std::future_status status = ret.wait_for( std::chrono::milliseconds( 250 ) );
while( status != std::future_status::ready )
{
m_drcEngine->ReportProgress( static_cast<double>( done ) / total_effort );
status = ret.wait_for( std::chrono::milliseconds( 250 ) );
}
}
returns.clear();
returns.reserve( dataset.size() * distinctMinWidths.size() );
for( const auto& [ netLayer, itemsPoly ] : dataset )
{
for( int minWidth : distinctMinWidths )
returns.emplace_back( tp.submit( min_checker, itemsPoly, netLayer.Layer, minWidth ) );
}
for( std::future<size_t>& ret : returns )
{
std::future_status status = ret.wait_for( std::chrono::milliseconds( 250 ) );
while( status != std::future_status::ready )
{
m_drcEngine->ReportProgress( static_cast<double>( done ) / total_effort );
status = ret.wait_for( std::chrono::milliseconds( 250 ) );
}
}
return true;
}
namespace detail
{
static DRC_REGISTER_TEST_PROVIDER<DRC_TEST_PROVIDER_CONNECTION_WIDTH> dummy;
}
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