From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Tue, 28 Oct 2014 07:44:34 +0000 (+0100)
Subject: Remove possible deadlock
X-Git-Tag: v2.0~13
X-Git-Url: http://winboard.nl/cgi-bin?p=uci2wb.git;a=commitdiff_plain;h=40e7829923848cce4b40d855238f881840dc3e26;hp=7fb95d5105ce2608c5a378a99e5f6076fc0e6f12

Remove possible deadlock

Add some flush() calls to make sure we are not waiting for a
response to something we still have buffered.
---

diff --git a/UCI2WB.c b/UCI2WB.c
index eeb93c3..1944b4b 100644
--- a/UCI2WB.c
+++ b/UCI2WB.c
@@ -246,7 +246,6 @@ Engine2GUI()
 	    sscanf(line, "bestmove %s", move[moveNr++]);
 	    myTime -= (GetTickCount() - startTime)*1.02 + inc; // update own clock, so we can give correct wtime, btime with ponder
 	    if(mps && ((moveNr+1)/2) % mps == 0) myTime += tc; if(sTime) myTime = sTime; // new session or move starts
-
 	    stm = WHITE+BLACK - stm;
 	    // first start a new ponder search, if pondering is on and we have a move to ponder on
 	    if(p = strstr(line+9, "ponder")) {
@@ -368,7 +367,7 @@ GUI2Engine()
 
 	if((computer == stm || computer == ANALYZE) && !suspended) {
 	    DPRINT("# start search\n");
-	    LoadPos(moveNr); // load position
+	    LoadPos(moveNr); fflush(stdout); // load position
 	    // and set engine thinking (note USI swaps colors!)
 	    startTime = GetTickCount();
 	    if(computer == ANALYZE) {
@@ -395,7 +394,7 @@ GUI2Engine()
 	    if(sc == 'x') { if(newGame) fprintf(toE, "setoption newgame\n"); } else // optional in UCCI
 	    fprintf(toE, "u%cinewgame\n", sc); fflush(toE);
 	    pause = 1; // wait for option settings to take effect
-	    fprintf(toE, "isready\n");
+	    fprintf(toE, "isready\n"); fflush(toE);
 	    Sync(PAUSE); // wait for readyok
 	}
 	else if(!strcmp(command, "usermove")) {