From 93253eabd41368b4a4a8513fbbe37c74c0e30c1c Mon Sep 17 00:00:00 2001
From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Mon, 11 Feb 2013 16:25:09 +0100
Subject: [PATCH] Unreserve tourney game on exit during engine load

While waiting for the feature timeout we are not yet in TwoMachines mode,
so quitting XBoard at that stage would not unreserve the upcoming game.
A global flag 'startingEngine' similar to 'waitingForGame' now signals
this condition.
---
 backend.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/backend.c b/backend.c
index f192362..ea569f3 100644
--- a/backend.c
+++ b/backend.c
@@ -464,7 +464,7 @@ long timeControl_2; /* [AS] Allow separate time controls */
 char *fullTimeControlString = NULL, *nextSession, *whiteTC, *blackTC, activePartner; /* [HGM] secondary TC: merge of MPS, TC and inc */
 long timeRemaining[2][MAX_MOVES];
 int matchGame = 0, nextGame = 0, roundNr = 0;
-Boolean waitingForGame = FALSE;
+Boolean waitingForGame = FALSE, startingEngine = FALSE;
 TimeMark programStartTime, pauseStart;
 char ics_handle[MSG_SIZ];
 int have_set_title = 0;
@@ -10896,7 +10896,7 @@ GameEnds (ChessMove result, char *resultDetails, int whosays)
 	second.pr = NoProc;
     }
 
-    if (matchMode && (gameMode == TwoMachinesPlay || waitingForGame && exiting)) {
+    if (matchMode && (gameMode == TwoMachinesPlay || (waitingForGame || startingEngine) && exiting)) {
 	char resChar = '=';
         switch (result) {
 	case WhiteWins:
@@ -10921,7 +10921,7 @@ GameEnds (ChessMove result, char *resultDetails, int whosays)
 	  break;
 	}
 
-	if(waitingForGame) resChar = ' '; // quit while waiting for round sync: unreserve already reserved game
+	if(exiting) resChar = ' '; // quit while waiting for round sync: unreserve already reserved game
 	if(appData.tourneyFile[0]){ // [HGM] we are in a tourney; update tourney file with game result
 	    if(appData.afterGame && appData.afterGame[0]) RunCommand(appData.afterGame);
 	    ReserveGame(nextGame, resChar); // sets nextGame
@@ -13987,6 +13987,7 @@ TwoMachinesEvent P((void))
 
 //    forwardMostMove = currentMove;
     TruncateGame(); // [HGM] vari: MachineWhite and MachineBlack do this...
+    startingEngine = TRUE;
 
     if(!ResurrectChessProgram()) return;   /* in case first program isn't running (unbalances its ping due to InitChessProgram!) */
 
@@ -13998,6 +13999,7 @@ TwoMachinesEvent P((void))
     if(WaitForEngine(&second, TwoMachinesEventIfReady)) return; // (if needed:) started up second engine, so wait for features
 
     if(second.protocolVersion >= 2 && !strstr(second.variants, VariantName(gameInfo.variant))) {
+	startingEngine = FALSE;
 	DisplayError("second engine does not play this", 0);
 	return;
     }
@@ -14031,7 +14033,7 @@ TwoMachinesEvent P((void))
     }
 
     gameMode = TwoMachinesPlay;
-    pausing = FALSE;
+    pausing = startingEngine = FALSE;
     ModeHighlight(); // [HGM] logo: this triggers display update of logos
     SetGameInfo();
     DisplayTwoMachinesTitle();
-- 
1.7.0.4