From c5ae5d1137b9456fcb0b2e9e83c1bfc126522e92 Mon Sep 17 00:00:00 2001
From: John Fultz <jfultz@wolfram.com>
Date: Mon, 7 Dec 2015 02:14:25 -0600
Subject: Move sim toward a message passing model.

In prep for allowing sims to be handed off to a thread
pool.
---
 sim.h | 38 +++++++++++++++++++++++++++++++++-----
 1 file changed, 33 insertions(+), 5 deletions(-)

(limited to 'sim.h')

diff --git a/sim.h b/sim.h
index 9f31590..e6ba025 100644
--- a/sim.h
+++ b/sim.h
@@ -19,6 +19,7 @@
 #ifndef QUACKLE_SIM_H
 #define QUACKLE_SIM_H
 
+#include <atomic>
 #include <vector>
 
 #include "alphabetparameters.h"
@@ -113,11 +114,19 @@ struct Level
     PositionStatisticsList statistics;
 };
 
-typedef vector<Level> LevelList;
+class LevelList : public vector<Level>
+{
+public:
+    // expand the levels list to be at least number long
+    void setNumberLevels(unsigned int number);
+};
 
 struct SimmedMove
 {
-    SimmedMove(const Move &_move) : move(_move), m_includeInSimulation(true) { }
+    SimmedMove(const Move &_move) :
+        move(_move),
+        m_id(++objectIdCounter),
+        m_includeInSimulation(true) { }
 
     // + our scores - their scores + residual, except if we have no levels,
     // in which case returns move.equity
@@ -127,15 +136,14 @@ struct SimmedMove
     // in which case returns move.win
     double calculateWinPercentage() const;
 
-    // expand the levels list to be at least number long
-    void setNumberLevels(unsigned int number);
-
     // clear all level values
     void clear();
 
     bool includeInSimulation() const;
     void setIncludeInSimulation(bool includeInSimulation);
 
+    long id() const { return m_id; };
+
     Move move;
     LevelList levels;
     AveragedValue residual;
@@ -145,7 +153,10 @@ struct SimmedMove
     PositionStatistics getPositionStatistics(int level, int playerIndex) const;
 
 private:
+    long m_id;
     bool m_includeInSimulation;
+
+    static std::atomic_long objectIdCounter;
 };
 
 inline bool SimmedMove::includeInSimulation() const
@@ -160,6 +171,19 @@ inline void SimmedMove::setIncludeInSimulation(bool includeInSimulation)
 
 typedef vector<SimmedMove> SimmedMoveList;
 
+struct SimmedMoveMessage
+{
+    long id;
+    LevelList levels;
+    vector<double> score;
+    vector<double> bingos;
+    double residual;
+    double gameSpread;
+    double wins;
+
+    bool bogowin;
+};
+
 class Simulator
 {
 public:
@@ -235,6 +259,10 @@ public:
     // simulate one iteration
     void simulate(int plies);
 
+    // Incoporate the results of a single simulation into the
+    // cumulative results
+    void incorporateMessage(const struct SimmedMoveMessage &message);
+
     // Set oppo's rack to some partially-known tiles.
     // Set this to an empty rack if no tiles are known, so
     // that all tiles are chosen randomly each iteration.
-- 
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