From 452c6831ccc97389845cc78515d0826266e1ea09 Mon Sep 17 00:00:00 2001
From: David Anderson <davea@ssl.berkeley.edu>
Date: Thu, 23 Dec 2004 06:10:53 +0000
Subject: [PATCH] *** empty log message ***

svn path=/trunk/boinc/; revision=4927
---
 api/x_opengl.C | 23 +++++++++++++----------
 checkin_notes  |  7 +++++++
 2 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/api/x_opengl.C b/api/x_opengl.C
index 9f03f2258e..5ee28f48e3 100644
--- a/api/x_opengl.C
+++ b/api/x_opengl.C
@@ -192,29 +192,32 @@ void restart() {
 void xwin_graphics_event_loop() {
 	char* args[] = {"foobar", 0};
 	int one=1;
-    static bool first=true;
+    static bool glut_inited = false;
 
     graphics_thread = pthread_self();
+
+    atexit(restart);
     int restarted = setjmp(jbuf);
 
-#ifdef __APPLE_CC__
-    first = true;
-#endif
-    if (first) {
-        glutInit(&one, args);
-        first = false;
-    }
-
     if (restarted) {
+        if (!glut_inited) {
+            // here glutInit() must have failed and called exit().
+            // returning will cause the graphics thread to exit.
+            return;
+        }
         //fprintf(stderr, "graphics thread restarted\n"); fflush(stderr);
+#ifdef __APPLE_CC__
+        glutInit(&one, args);
+#endif
         set_mode(MODE_HIDE_GRAPHICS);
     } else {
+        glutInit(&one, args);
+        glut_inited = true;
         if (boinc_is_standalone()) {
             set_mode(MODE_WINDOW);
         } else {
             wait_for_initial_message();
             timer_handler(0);
-            atexit(restart);
         }
     }
     glutTimerFunc(TIMER_INTERVAL_MSEC, timer_handler, 0);
diff --git a/checkin_notes b/checkin_notes
index 98b0029573..3f5279241b 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -21757,3 +21757,10 @@ Rom    22 Dec 2004
 Rom   22 Dec 2004 (boinc)
     - Tag for 4.57 release, all platforms
       boinc_core_release_4_57
+
+David  22 Dec 2004
+    - shuffle logic in xwin_graphics_event_loop() to deal with
+        situation where glutInit() calls exit()
+
+    api/
+        x_opengl.C