# HG changeset patch
# User bsmith@81767d24-ef19-dc11-ae90-00e081727c95
# Date 1299812578 0
# Node ID 7953f0471e4da9e542e9279ca68ede083d76ab68
# Parent  b793008314957778b3c6e31cb8ca194745854995
Some cleanups for the run loop iteration and thread system.

diff -r b79300831495 -r 7953f0471e4d mac/dw.m
--- a/mac/dw.m	Fri Mar 11 02:33:19 2011 +0000
+++ b/mac/dw.m	Fri Mar 11 03:02:58 2011 +0000
@@ -23,14 +23,11 @@
         dw_mutex_lock(DWThreadMutex); \
         _dw_mutex_locked = pthread_self(); \
         dw_mutex_lock(DWThreadMutex2); \
-        /*NSLog(@"Thread %d asking the main thread to stop %x", (int)pthread_self(), (int)DWObj);*/ \
         [DWObj performSelectorOnMainThread:@selector(synchronizeThread:) withObject:nil waitUntilDone:NO]; \
         dw_mutex_lock(DWRunMutex); \
-        /*NSLog(@"Thread %d proceeding", (int)pthread_self());*/ \
         _locked_by_me = TRUE; } }
 #define  DW_MUTEX_UNLOCK { \
     if(pthread_self() != DWThread && _locked_by_me == TRUE) { \
-        /*NSLog(@"Thread %d releasing", (int)pthread_self());*/ \
         dw_mutex_unlock(DWRunMutex); \
         dw_mutex_unlock(DWThreadMutex2); \
         _dw_mutex_locked = (pthread_t)-1; \
@@ -87,6 +84,7 @@
 /* Some internal prototypes */
 static void _do_resize(Box *thisbox, int x, int y);
 int _remove_userdata(UserData **root, char *varname, int all);
+void _dw_main_iteration(void);
 
 SignalHandler *_get_handler(HWND window, int messageid)
 {
@@ -1737,7 +1735,7 @@
         }
         while(((tv.tv_sec - start.tv_sec)*1000) + ((tv.tv_usec - start.tv_usec)/1000) <= milliseconds)
         {
-             dw_main_iteration();
+             _dw_main_iteration();
              gettimeofday(&tv, NULL);
         }
         if(orig == (DWTID)-1)
@@ -1750,10 +1748,8 @@
         usleep(milliseconds * 1000);
 }
 
-/*
- * Processes a single message iteration and returns.
- */
-void API dw_main_iteration(void)
+/* Internal version that doesn't lock the run mutex */
+void _dw_main_iteration(void)
 {
     NSDate *distant_future = [NSDate distantFuture];
     NSEvent *event = [DWApp nextEventMatchingMask:NSAnyEventMask
@@ -1767,6 +1763,16 @@
 }
 
 /*
+ * Processes a single message iteration and returns.
+ */
+void API dw_main_iteration(void)
+{
+    dw_mutex_lock(DWRunMutex);
+    _dw_main_iteration();
+    dw_mutex_unlock(DWRunMutex);
+}
+
+/*
  * Cleanly terminates a DW session, should be signal handler safe.
  * Parameters:
  *       exitcode: Exit code reported to the operating system.
@@ -2025,7 +2031,7 @@
 	
 	while(!dialog->done)
 	{
-		dw_main_iteration();
+		_dw_main_iteration();
 	}
 	dw_event_close(&dialog->eve);
 	tmp = dialog->result;
@@ -6511,7 +6517,7 @@
     {
         while(pthread_mutex_trylock(mutex) != 0)
         {
-            dw_main_iteration();
+            _dw_main_iteration();
         }
     }
     else