From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Mon, 18 Apr 2011 13:46:12 +0000 (+0200)
Subject: Add UnloadEngine routine
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=d1f211c5db3b402b5b5b79648c6d9703e725376a;p=xboard.git

Add UnloadEngine routine
---

diff --git a/backend.c b/backend.c
index fcc611a..07897c8 100644
--- a/backend.c
+++ b/backend.c
@@ -693,6 +693,24 @@ CommonEngineInit()
 }
 
 void
+UnloadEngine(ChessProgramState *cps)
+{
+	/* Kill off first chess program */
+	if (cps->isr != NULL)
+	  RemoveInputSource(cps->isr);
+	cps->isr = NULL;
+
+	if (cps->pr != NoProc) {
+	    ExitAnalyzeMode();
+            DoSleep( appData.delayBeforeQuit );
+	    SendToProgram("quit\n", cps);
+            DoSleep( appData.delayAfterQuit );
+	    DestroyChildProcess(cps->pr, cps->useSigterm);
+	}
+	cps->pr = NoProc;
+}
+
+void
 ClearOptions(ChessProgramState *cps)
 {
     int i;