From: Geoff Voelker <voelker@cs.washington.edu>
Date: Thu, 25 Jan 1996 03:06:44 +0000 (+0000)
Subject: backout 1,.4
X-Git-Tag: emacs-19.34~1508
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=dd118a073d7800973c5a7e3e74e541c6dc626392;p=emacs.git

backout 1,.4
---

diff --git a/src/w32xfns.c b/src/w32xfns.c
index 9929248e92b..e478bc24537 100644
--- a/src/w32xfns.c
+++ b/src/w32xfns.c
@@ -22,7 +22,6 @@ Boston, MA 02111-1307, USA.  */
 #include <config.h>
 #include <stdio.h>
 #include "lisp.h"
-#include "frame.h"
 #include "blockinput.h"
 #include "w32term.h"
 #include "windowsx.h"
@@ -30,78 +29,38 @@ Boston, MA 02111-1307, USA.  */
 #define myalloc(cb) GlobalAllocPtr (GPTR, cb)
 #define myfree(lp) GlobalFreePtr (lp)
 
-CRITICAL_SECTION critsect[ CRIT_TOTAL ];
+CRITICAL_SECTION critsect;
 extern HANDLE keyboard_handle;
-HANDLE h_input_available = NULL;
+HANDLE hEvent = NULL;
 
 void 
 init_crit ()
 {
-  int i;
-
-  for (i = 0; i < CRIT_TOTAL; i++)
-    InitializeCriticalSection (&critsect[i]);
-  /* For safety, h_input_available should only be reset by get_next_msg
-     when the input queue is empty, so make it a manual reset event. */
-  keyboard_handle = h_input_available = CreateEvent (NULL, TRUE, FALSE, NULL);
+  InitializeCriticalSection (&critsect);
+  keyboard_handle = hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
 }
 
 void 
-delete_crit ()
+enter_crit ()
 {
-  int i;
-
-  for (i = 0; i < CRIT_TOTAL; i++)
-    DeleteCriticalSection (&critsect[i]);
-  if (h_input_available)
-    {
-      CloseHandle (h_input_available);
-      h_input_available = NULL;
-    }
+  EnterCriticalSection (&critsect);
 }
 
-/* Get a DC for frame and select palette for drawing; force an update of
-   all frames if palette's mapping changes.  */
-HDC
-GetFrameDC (FRAME_PTR f)
+void 
+leave_crit ()
 {
-  HDC hDC;
-
-  enter_crit (CRIT_GDI);
-
-  hDC = GetDC (f->output_data.win32->window_desc);
-
-  if (!NILP (Vwin32_enable_palette))
-    f->output_data.win32->h_old_palette =
-      SelectPalette (hDC, one_win32_display_info.h_palette, FALSE);
-  else
-    f->output_data.win32->h_old_palette = NULL;
-
-  if (RealizePalette (hDC))
-    {
-      Lisp_Object frame, framelist;
-      FOR_EACH_FRAME (framelist, frame)
-	{
-	  SET_FRAME_GARBAGED (XFRAME (frame));
-	}
-    }
-
-  return hDC;
+  LeaveCriticalSection (&critsect);
 }
 
-int
-ReleaseFrameDC (FRAME_PTR f, HDC hDC)
+void 
+delete_crit ()
 {
-  int ret;
-
-  if (f->output_data.win32->h_old_palette)
-    SelectPalette (hDC, f->output_data.win32->h_old_palette, FALSE);
-
-  ret = ReleaseDC (f->output_data.win32->window_desc, hDC);
-
-  leave_crit (CRIT_GDI);
-
-  return ret;
+  DeleteCriticalSection (&critsect);
+  if (hEvent)
+    {
+      CloseHandle (hEvent);
+      hEvent = NULL;
+    }
 }
 
 typedef struct int_msg
@@ -121,15 +80,15 @@ get_next_msg (lpmsg, bWait)
 {
   BOOL bRet = FALSE;
   
-  enter_crit (CRIT_MSG);
+  enter_crit ();
   
   /* The while loop takes care of multiple sets */
   
   while (!nQueue && bWait)
     {
-      leave_crit (CRIT_MSG);
-      WaitForSingleObject (h_input_available, INFINITE);
-      enter_crit (CRIT_MSG);
+      leave_crit ();
+      WaitForSingleObject (hEvent, INFINITE);
+      enter_crit ();
     }
   
   if (nQueue)
@@ -148,11 +107,8 @@ get_next_msg (lpmsg, bWait)
 
       bRet = TRUE;
     }
-
-  if (nQueue == 0)
-    ResetEvent (h_input_available);
   
-  leave_crit (CRIT_MSG);
+  leave_crit ();
   
   return (bRet);
 }
@@ -163,23 +119,26 @@ post_msg (lpmsg)
 {
   int_msg * lpNew = (int_msg *) myalloc (sizeof (int_msg));
 
-  if (!lpNew)
-    return (FALSE);
+  if (!lpNew) return (FALSE);
 
   bcopy (lpmsg, &(lpNew->w32msg), sizeof (Win32Msg));
   lpNew->lpNext = NULL;
 
-  enter_crit (CRIT_MSG);
+  enter_crit ();
 
   if (nQueue++)
-    lpTail->lpNext = lpNew;
+    {
+      lpTail->lpNext = lpNew;
+    }
   else 
-    lpHead = lpNew;
+    {
+      lpHead = lpNew;
+      SetEvent (hEvent);
+    }
 
   lpTail = lpNew;
-  SetEvent (h_input_available);
     
-  leave_crit (CRIT_MSG);
+  leave_crit ();
 
   return (TRUE);
 }