[xemacs-hg @ 2001-06-08 12:21:09 by ben] ------ gc-in-window-procedure fixes ------ alloc.c: Create "post-gc actions", to avoid those dreaded "GC during window procedure" problems. event-msw.c: Abort, clean and simple, when GC in window procedure. We want to flush these puppies out. glyphs-msw.c: Use a post-gc action when destroying subwindows. lisp.h: Declare register_post_gc_action(). scrollbar-msw.c: Use a post-gc action when unshowing scrollbar windows, if in gc. redisplay.c: Add comment about the utter evilness of what's going down here. ------ cygwin setitimer fixes ------ Makefile.in.in: Compile profile.c only when HAVE_SETITIMER. nt.c: Style fixes. nt.c: Move setitimer() emulation to win32.c, because Cygwin needs it too. profile.c: Make sure we don't compile if no setitimer(). Use qxe_setitimer() instead of just plain setitimer(). signal.c: Define qxe_setitimer() as an encapsulation around setitimer() -- call setitimer() directly unless Cygwin or MS Win, in which case we use our simulated version in win32.c. systime.h: Prototype mswindows_setitimer() and qxe_setitimer(). Long comment about "qxe" and the policy regarding encapsulation. win32.c: Move setitimer() emulation here, so Cygwin can use it. Rename a couple of functions and variables to be longer and more descriptive. In setitimer_helper_proc(), send the signal using either mswindows_raise() or (on Cygwin) kill(). If for some reason we are still getting lockups, we'll change the kill() to directly invoke the signal handlers. ------ windows shell fixes ------ callproc.c, ntproc.c: Comments about how these two files must die. callproc.c: On MS Windows, init shell-file-name from SHELL, then COMSPEC, not just COMSPEC. (more correct and closer to FSF.) Don't force a value for SHELL into the environment. (Comments added to explain why not.) nt.c: Don't shove a fabricated SHELL into the environment. See above. ------ misc fixes ------ glyphs-shared.c: Style correction. xemacs-faq.texi: Merge in the rest of Hrvoje's Windows FAQ. Redo section 7 to update current reality and add condensed versions of new changes for 21.1 and 21.4. (Not quite done for 21.4.) Lots more Windows updates. process.el: Need to quote a null argument, too. From Dan Holmsand. startup.el: startup.el: Call MS Windows init function. win32-native.el: Correct comments at top. Correctly handle passing arguments to Cygwin programs and to bash. Fix quoting of zero-length arguments (from Dan Holmsand). Set shell-command-switch based on shell-file-name, which in turn comes from env var SHELL.

--- a/src/signal.c	Thu Jun 07 06:37:25 2001 +0000
+++ b/src/signal.c	Fri Jun 08 12:21:27 2001 +0000
@@ -28,12 +28,12 @@
 #include "events.h" /* for signal_fake_event() */
 #include "frame.h"
 #include "process.h"
+
 #include "sysdep.h"
+#include "sysfile.h"
 #include "syssignal.h"
 #include "systime.h"
 
-#include "sysfile.h"
-
 /* Set to 1 when a quit-check signal (either a SIGIO interrupt or
    the asynch. timeout for poll-for-quit) occurs.  The QUITP
    macro may look at this. */
@@ -109,7 +109,7 @@
   struct itimerval it;
   it.it_value = interval;
   EMACS_SET_SECS_USECS (it.it_interval, 0, 0);
-  setitimer (ITIMER_REAL, &it, 0);
+  qxe_setitimer (ITIMER_REAL, &it, 0);
 #else
   int secs;
   EMACS_TIME_TO_INT (interval, secs);
@@ -263,6 +263,7 @@
    crash). --ben */
 
 #ifdef HAVE_SETITIMER
+
 unsigned int
 alarm (unsigned int howlong)
 {
@@ -274,12 +275,27 @@
   new_it.it_value.tv_usec = 0;
   new_it.it_interval.tv_sec = 0;
   new_it.it_interval.tv_usec = 0;
-  setitimer (ITIMER_REAL, &new_it, &old_it);
+  qxe_setitimer (ITIMER_REAL, &new_it, &old_it);
 
   /* Never return zero if there was a timer outstanding. */
   return old_it.it_value.tv_sec + (old_it.it_value.tv_usec > 0 ? 1 : 0);
 }
+
+int
+qxe_setitimer (int kind, const struct itimerval *itnew,
+	       struct itimerval *itold)
+{
+#if defined (WIN32_NATIVE) || defined (CYGWIN)
+  /* setitimer() does not exist on native MS Windows, and appears broken
+     on Cygwin.  See win32.c. */
+  return mswindows_setitimer (kind, itnew, itold);
+#else
+  return setitimer (kind, itnew, itold);
 #endif
+}
+
+#endif /* HAVE_SETITIMER */
+
 
 DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, 0, 0, 0, /*
 Return non-nil if XEmacs is waiting for input from the user.