Create separate debug fil for each tourney game

Users can now apecify a -debugfile with %d in its name, and this will
be replaced by the sequence number of the game. TwoMachinesEvent then
starts by opening a new file when the name has changed, so that each
game will go to a different file, with recognizable name.

diff --git a/backend.c b/backend.c
index a4564d8..12a82a5 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -393,6 +393,7 @@ PosFlags (index)
 }
 
 FILE *gameFileFP, *debugFP;
+char *currentDebugFile; // [HGM] debug split: to remember name
 
 /*
     [AS] Note: sometimes, the sscanf() function is used to parse the input
@@ -1325,6 +1326,7 @@ InitBackEnd2 ()
     if (appData.debugMode) {
        fprintf(debugFP, "%s\n", programVersion);
     }
+    ASSIGN(currentDebugFile, appData.nameOfDebugFile); // [HGM] debug split: remember initial name in use
 
     set_cont_sequence(appData.wrapContSeq);
     if (appData.matchGames > 0) {
@@ -13404,6 +13406,17 @@ TwoMachinesEvent P((void))
        break;
     }
 
+    if(matchMode && appData.debugMode) { // [HGM] debug split: game is part of a match; we might have to create a debug file just for this game
+       snprintf(buf, MSG_SIZ, appData.nameOfDebugFile, nextGame+1); // expand name of debug file with %d in it
+       if(strcmp(buf, currentDebugFile)) { // name has changed
+           FILE *f = fopen(buf, "w");
+           if(f) { // if opening the new file failed, just keep using the old one
+               ASSIGN(currentDebugFile, buf);
+               fclose(debugFP);
+               debugFP = f;
+           }
+       }
+    }
 //    forwardMostMove = currentMove;
     TruncateGame(); // [HGM] vari: MachineWhite and MachineBlack do this...
 
@@ -13429,6 +13442,7 @@ TwoMachinesEvent P((void))
        ScheduleDelayedEvent(TwoMachinesEventIfReady, appData.matchPause - wait);
        return;
     }
+    // we are now committed to starting the game
     stalling = 0;
     DisplayMessage("", "");
     if (startedFromSetupPosition) {