GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
int
handle_file_notifications (struct input_event *hold_quit)
{
- BYTE *p = file_notifications;
- FILE_NOTIFY_INFORMATION *fni = (PFILE_NOTIFY_INFORMATION)p;
- const DWORD min_size
- = offsetof (FILE_NOTIFY_INFORMATION, FileName) + sizeof(wchar_t);
- struct input_event inev;
+ struct notifications_set *ns = NULL;
int nevents = 0;
+ int done = 0;
/* We cannot process notification before Emacs is fully initialized,
since we need the UTF-16LE coding-system to be set up. */
if (!initialized)
{
- notification_buffer_in_use = 0;
return nevents;
}
- enter_crit ();
- if (notification_buffer_in_use)
+ while (!done)
{
- DWORD info_size = notifications_size;
- Lisp_Object cs = Qutf_16le;
- Lisp_Object obj = w32_get_watch_object (notifications_desc);
-
- /* notifications_size could be zero when the buffer of
- notifications overflowed on the OS level, or when the
- directory being watched was itself deleted. Do nothing in
- that case. */
- if (info_size
- && !NILP (obj) && CONSP (obj))
- {
- Lisp_Object callback = XCDR (obj);
+ ns = NULL;
- EVENT_INIT (inev);
+ /* Find out if there is a record available in the linked list of
+ notifications sets. If so, unlink te set from the linked list.
+ Use the critical section. */
+ enter_crit ();
+ if (notifications_set_head->next != notifications_set_head)
+ {
+ ns = notifications_set_head->next;
+ ns->prev->next = ns->next;
+ ns->next->prev = ns->prev;
+ }
+ else
+ done = 1;
+ leave_crit();
- while (info_size >= min_size)
+ if (ns)
+ {
+ BYTE *p = ns->notifications;
+ FILE_NOTIFY_INFORMATION *fni = (PFILE_NOTIFY_INFORMATION)p;
+ const DWORD min_size
+ = offsetof (FILE_NOTIFY_INFORMATION, FileName) + sizeof(wchar_t);
+ struct input_event inev;
+ DWORD info_size = ns->size;
+ Lisp_Object cs = Qutf_16le;
+ Lisp_Object obj = w32_get_watch_object (ns->desc);
+
+ /* notifications size could be zero when the buffer of
+ notifications overflowed on the OS level, or when the
+ directory being watched was itself deleted. Do nothing in
+ that case. */
+ if (info_size
+ && !NILP (obj) && CONSP (obj))
{
- Lisp_Object utf_16_fn
- = make_unibyte_string ((char *)fni->FileName,
- fni->FileNameLength);
- /* Note: mule-conf is preloaded, so utf-16le must
- already be defined at this point. */
- Lisp_Object fname
- = code_convert_string_norecord (utf_16_fn, cs, 0);
- Lisp_Object action = lispy_file_action (fni->Action);
-
- inev.kind = FILE_NOTIFY_EVENT;
- inev.timestamp = GetTickCount ();
- inev.modifiers = 0;
- inev.frame_or_window = callback;
- inev.arg = Fcons (action, fname);
- inev.arg = list3 (make_pointer_integer (notifications_desc),
- action, fname);
- kbd_buffer_store_event_hold (&inev, hold_quit);
- nevents++;
-
- if (!fni->NextEntryOffset)
- break;
- p += fni->NextEntryOffset;
- fni = (PFILE_NOTIFY_INFORMATION)p;
- info_size -= fni->NextEntryOffset;
+ Lisp_Object callback = XCDR (obj);
+
+ EVENT_INIT (inev);
+
+ while (info_size >= min_size)
+ {
+ Lisp_Object utf_16_fn
+ = make_unibyte_string ((char *)fni->FileName,
+ fni->FileNameLength);
+ /* Note: mule-conf is preloaded, so utf-16le must
+ already be defined at this point. */
+ Lisp_Object fname
+ = code_convert_string_norecord (utf_16_fn, cs, 0);
+ Lisp_Object action = lispy_file_action (fni->Action);
+
+ inev.kind = FILE_NOTIFY_EVENT;
+ inev.timestamp = GetTickCount ();
+ inev.modifiers = 0;
+ inev.frame_or_window = callback;
+ inev.arg = Fcons (action, fname);
+ inev.arg = list3 (make_pointer_integer (ns->desc),
+ action, fname);
+ kbd_buffer_store_event_hold (&inev, hold_quit);
+ nevents++;
+ if (!fni->NextEntryOffset)
+ break;
+ p += fni->NextEntryOffset;
+ fni = (PFILE_NOTIFY_INFORMATION)p;
+ info_size -= fni->NextEntryOffset;
+ }
}
+ /* Free this notification set. */
+ free (ns->notifications);
+ free (ns);
}
- notification_buffer_in_use = 0;
}
- leave_crit ();
return nevents;
}
#else /* !HAVE_W32NOTIFY */