From e80bdf934a1063918a2d0b67113f8d6787f87674 Mon Sep 17 00:00:00 2001
From: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
Date: Thu, 27 Oct 2022 00:15:55 +0200
Subject: [PATCH] router: add via force propagation iteration limit as a
 user-controllable parameter in ROUTING_SETTINGS

---
 pcbnew/router/pns_routing_settings.cpp | 2 ++
 pcbnew/router/pns_routing_settings.h   | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/pcbnew/router/pns_routing_settings.cpp b/pcbnew/router/pns_routing_settings.cpp
index 95935ebb6d..cc585d0d3b 100644
--- a/pcbnew/router/pns_routing_settings.cpp
+++ b/pcbnew/router/pns_routing_settings.cpp
@@ -54,6 +54,7 @@ ROUTING_SETTINGS::ROUTING_SETTINGS( JSON_SETTINGS* aParent, const std::string& a
     m_walkaroundHugLengthThreshold = 1.5;
     m_autoPosture = true;
     m_fixAllSegments = true;
+    m_viaForcePropIterationLimit = 40;
 
     m_params.emplace_back( new PARAM<int>( "mode", reinterpret_cast<int*>( &m_routingMode ),
             static_cast<int>( RM_Walkaround ) ) );
@@ -68,6 +69,7 @@ ROUTING_SETTINGS::ROUTING_SETTINGS( JSON_SETTINGS* aParent, const std::string& a
     m_params.emplace_back( new PARAM<bool>( "follow_mouse",     &m_followMouse,     true ) );
     m_params.emplace_back( new PARAM<bool>( "start_diagonal",   &m_startDiagonal,   false ) );
     m_params.emplace_back( new PARAM<int>( "shove_iteration_limit", &m_shoveIterationLimit, 250 ) );
+    m_params.emplace_back( new PARAM<int>( "via_force_prop_iteration_limit", &m_viaForcePropIterationLimit, 40 ) );
 
     m_params.emplace_back( new PARAM_LAMBDA<int>( "shove_time_limit",
             [this] () -> int
diff --git a/pcbnew/router/pns_routing_settings.h b/pcbnew/router/pns_routing_settings.h
index fb2158674f..0304baa1a1 100644
--- a/pcbnew/router/pns_routing_settings.h
+++ b/pcbnew/router/pns_routing_settings.h
@@ -154,6 +154,9 @@ public:
 
     double WalkaroundHugLengthThreshold() const { return m_walkaroundHugLengthThreshold; }
 
+    int ViaForcePropIterationLimit() const { return m_viaForcePropIterationLimit; }
+    void SetViaForcePropIterationLimit(int aLimit) { m_viaForcePropIterationLimit = aLimit; }
+
 private:
     bool m_shoveVias;
     bool m_startDiagonal;
@@ -178,6 +181,7 @@ private:
 
     int m_walkaroundIterationLimit;
     int m_shoveIterationLimit;
+    int m_viaForcePropIterationLimit;
     double m_walkaroundHugLengthThreshold;
 
     TIME_LIMIT m_shoveTimeLimit;