Initialise the application in the main thread.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@16316 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,8 @@
+2003-04-01  Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/NSApplication.m: ensure that application initialisation
+	is performed in the main thread.
+
 2003-03-31  Adam Fedor  <fedor@gnu.org>
 
 	* Source/NSWindow.m (-becomeKeyWindow): Set initialFirstResponder.

Source/NSApplication.m

@@ -559,49 +559,10 @@ static NSCell* tileCell = nil;
  * Instance methods
  */
 
-/* 
- * This method initializes an NSApplication instance.  It sets the
- * shared application instance to be the receiver, and then connects
- * to the window server and performs the actual gui library
- * initialization.
- *
- * If there is a already a shared application instance, calling this
- * method results in an assertion (and normally program abortion/crash).
- *
- * It is recommended that you /never/ call this method directly from
- * your code!  It's called automatically (and only once) by
- * [NSApplication sharedApplication].  You might override this method
- * in subclasses (make sure to call super's :-), then your overridden
- * method will automatically be called (guaranteed once in the
- * lifetime of the application) when you call [MyApplicationClass
- * sharedApplication].
- *
- * If you call this method from your code (which we discourage you
- * from doing), it is /your/ responsibility to make sure it is called
- * only once (this is according to the openstep specification).  Since
- * +sharedApplication automatically calls this method, making also
- * sure it calls it only once, you definitely want to use
- * +sharedApplication instead of calling -init directly.  
+/**
+ * The real gui initialisation ... called from -init
  */
-- (id) init
-{
-  /*
-   * As per openstep specification, calling -init twice is a bug in
-   * the program.  +sharedApplication automatically makes sure it
-   * never calls -init more than once, and programmers should normally
-   * use +sharedApplication in programs.
-   *
-   * Please refrain from trying to have this method work with multiple
-   * calls (such as returning NSApp instead of raising an assertion).
-   * No matter what you do, you can't protect subclass -init custom
-   * code from multiple executions by changing the implementation here
-   * - so it's just simpler and cleaner that multiple -init executions
-   * are always forbidden, and subclasses inherit exactly the same
-   * kind of multiple execution protection as the superclass has, and
-   * initialization code behaves always in the same way for this class
-   * and for subclasses.
-   */
-  NSAssert (NSApp == nil, _(@"[NSApplication -init] called more than once"));
+- (void) _init
 {
   GSDisplayServer *srv;
   /* Initialization must be enclosed in an autorelease pool.  */
@@ -655,7 +616,60 @@ static NSCell* tileCell = nil;
   
   RELEASE (_app_init_pool);
 }
-  return self;
+
+
+/* 
+ * This method initializes an NSApplication instance.  It sets the
+ * shared application instance to be the receiver, and then connects
+ * to the window server and performs the actual gui library
+ * initialization.
+ *
+ * If there is a already a shared application instance, calling this
+ * method results in an assertion (and normally program abortion/crash).
+ *
+ * It is recommended that you /never/ call this method directly from
+ * your code!  It's called automatically (and only once) by
+ * [NSApplication sharedApplication].  You might override this method
+ * in subclasses (make sure to call super's :-), then your overridden
+ * method will automatically be called (guaranteed once in the
+ * lifetime of the application) when you call [MyApplicationClass
+ * sharedApplication].
+ *
+ * If you call this method from your code (which we discourage you
+ * from doing), it is /your/ responsibility to make sure it is called
+ * only once (this is according to the openstep specification).  Since
+ * +sharedApplication automatically calls this method, making also
+ * sure it calls it only once, you definitely want to use
+ * +sharedApplication instead of calling -init directly.  
+ */
+- (id) init
+{
+  /*
+   * As per openstep specification, calling -init twice is a bug in
+   * the program.  +sharedApplication automatically makes sure it
+   * never calls -init more than once, and programmers should normally
+   * use +sharedApplication in programs.
+   *
+   * Please refrain from trying to have this method work with multiple
+   * calls (such as returning NSApp instead of raising an assertion).
+   * No matter what you do, you can't protect subclass -init custom
+   * code from multiple executions by changing the implementation here
+   * - so it's just simpler and cleaner that multiple -init executions
+   * are always forbidden, and subclasses inherit exactly the same
+   * kind of multiple execution protection as the superclass has, and
+   * initialization code behaves always in the same way for this class
+   * and for subclasses.
+   */
+  NSAssert (NSApp == nil, _(@"[NSApplication -init] called more than once"));
+
+  /*
+   * The appkit should run in the main thread ... so to be sure we perform
+   * all the initialisation there.
+   */
+  [self performSelectorOnMainThread: @selector(_init)
+			 withObject: self
+		      waitUntilDone: YES];
+  return NSApp;
 }
 
 - (void) finishLaunching