* wininfo.h (wininfo::timer_active): Delete.

(wininfo::itv): Ditto.
(wininfo::start_time): Ditto.
(wininfo::window_started): Ditto.
(wininfo::getitimer): Ditto.
(wininfo::setitimer): Ditto.
(wininfo::wininfo): Ditto.
(wininfo::lock): New method.
(wininfo::release): Ditto.
* window.cc: Use new lock/acquire wininfo methods throughout.
(wininfo::wininfo): Delete
(wininfo::getitimer): Ditto.
(wininfo::setitimer): Ditto.
(getitimer): Ditto.
(setitimer): Ditto.
(ualarm): Ditto.
(alarm): Ditto.
(wininfo::lock): Define new function.
(wininfo::release): Ditto.
(wininfo::process): Delete WM_TIMER handling.
* timer.cc (struct timetracker): Delete it, flags.  Add it_interval,
interval_us, sleepto_us, running, init_muto(), syncthread, and gettime().
(ttstart): Make NO_COPY.
(lock_timer_tracker): New class.
(timer_tracker::timer_tracker): Distinguish ttstart case.
(timer_tracker::~timer_tracker): New destructor.  Clean out events, and reset
magic.
(timer_tracker::init_muto): New method.
(to_us): Round up as per POSIX.
(timer_thread): Reorganize to match timer_tracker::settime and
timer_tracker::gettime.  Call sig_send without wait.  Call auto_release.
(timer_tracker::settime): Reorganize logic to avoid race.  Call gettime to
recover old value.
(timer_tracker::gettime): New method.
(timer_create): Properly set errno on invalid timerid.  Use new
lock_timer_tracker method.
(timer_delete): Ditto.  Simplify code slightly.
(timer_gettime): New function.
(fixup_timers_after_fork): Reinit ttstart.
(getitimer): New implementation.
(setitimer): Ditto.
(ualarm): Ditto.
(alarm): Ditto.
* cygwin.din: Export timer_gettime.
* winsup.h: Remove has has_visible_window_station declaration.
* Makefile.in (DLL_OFILES): Add lsearch.o.
* cygthread.h (cygthread::notify_detached): New element.
(cygthread::cygthread): Take optional fourth argument signifying event to
signal on thread completion.
* cygthread.cc (cygthread::stub): Signal notify_detached event, if it exists.
(cygthread::cygthread): Initialize notify_detached from fourth argument.
(cygthread::detach): Wait for notify_detached field is present.
* lsearch.cc: New file.
* search.h: Ditto.
* include/cygwin/version.h: Bump API minor number to 126.
* cygwin.din: Export lsearch, lfind.

1 files changed, 14 insertions, 165 deletions

diff --git a/winsup/cygwin/window.cc b/winsup/cygwin/window.cc
index 2c5fcce8a..335ce3339 100644
--- a/winsup/cygwin/window.cc
+++ b/winsup/cygwin/window.cc
@@ -1,6 +1,6 @@
 /* window.cc: hidden windows for signals/itimer support
 
-   Copyright 1997, 1998, 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
+   Copyright 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc.
 
    Written by Sergey Okhapkin <sos@prospect.com.ru>
 
@@ -30,12 +30,7 @@ details. */
 
 wininfo NO_COPY winmsg;
 
-muto NO_COPY *wininfo::lock;
-
-wininfo::wininfo ()
-{
-  new_muto_name (lock, "!winlock");
-}
+muto NO_COPY *wininfo::_lock;
 
 int __stdcall
 wininfo::process (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
@@ -50,23 +45,6 @@ wininfo::process (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
     case WM_DESTROY:
       PostQuitMessage (0);
       return 0;
-    case WM_TIMER:
-      if (wParam == timer_active)
-	{
-	  UINT elapse = itv.it_interval.tv_sec * 1000 +
-			itv.it_interval.tv_usec / 1000;
-	  KillTimer (hwnd, timer_active);
-	  if (!elapse)
-	    timer_active = 0;
-	  else
-	    {
-	      timer_active = SetTimer (hwnd, 1, elapse, NULL);
-	      start_time = GetTickCount ();
-	      itv.it_value = itv.it_interval;
-	    }
-	  raise (SIGALRM);
-	}
-      return 0;
     case WM_ASYNCIO:
       if (WSAGETSELECTEVENT (lParam) == FD_OOB)
 	raise (SIGURG);
@@ -92,7 +70,7 @@ wininfo::winthread ()
   WNDCLASS wc;
   static NO_COPY char classname[] = "CygwinWndClass";
 
-  lock->grab ();
+  _lock->grab ();
   /* Register the window class for the main window. */
 
   wc.style = 0;
@@ -116,7 +94,7 @@ wininfo::winthread ()
 			   (LPVOID) NULL);
   if (!hwnd)
     api_fatal ("couldn't create window, %E");
-  lock->release ();
+  release ();
 
   while (GetMessage (&msg, hwnd, 0, 0) == TRUE)
     DispatchMessage (&msg);
@@ -136,156 +114,27 @@ HWND ()
   if (hwnd)
     return hwnd;
 
-  lock->acquire ();
+  lock ();
   if (!hwnd)
     {
-      lock->upforgrabs ();
+      _lock->upforgrabs ();
       cygthread *h = new cygthread (::winthread, this, "win");
       h->SetThreadPriority (THREAD_PRIORITY_HIGHEST);
       h->zap_h ();
-      lock->acquire ();
+      lock ();
     }
-  lock->release ();
+  release ();
   return hwnd;
 }
 
-extern "C" int
-setitimer (int which, const struct itimerval *value, struct itimerval *oldvalue)
-{
-  if (which != ITIMER_REAL)
-    {
-      set_errno (ENOSYS);
-      return -1;
-    }
-  return winmsg.setitimer (value, oldvalue);
-}
-
-/* FIXME: Very racy */
-int __stdcall
-wininfo::setitimer (const struct itimerval *value, struct itimerval *oldvalue)
-{
-  /* Check if we will wrap */
-  if (itv.it_value.tv_sec >= (long) (UINT_MAX / 1000))
-    {
-      set_errno (EINVAL);
-      return -1;
-    }
-  if (timer_active)
-    {
-      KillTimer (winmsg, timer_active);
-      timer_active = 0;
-    }
-  if (oldvalue)
-    *oldvalue = itv;
-  if (value == NULL)
-    {
-      set_errno (EFAULT);
-      return -1;
-    }
-  itv = *value;
-  UINT elapse = itv.it_value.tv_sec * 1000 + itv.it_value.tv_usec / 1000;
-  if (elapse == 0)
-    if (itv.it_value.tv_usec)
-      elapse = 1;
-    else
-      return 0;
-  if (!(timer_active = SetTimer (winmsg, 1, elapse, NULL)))
-    {
-      __seterrno ();
-      return -1;
-    }
-  start_time = GetTickCount ();
-  return 0;
-}
-
-extern "C" int
-getitimer (int which, struct itimerval *value)
-{
-  if (which != ITIMER_REAL)
-    {
-      set_errno (EINVAL);
-      return -1;
-    }
-  if (value == NULL)
-    {
-      set_errno (EFAULT);
-      return -1;
-    }
-  return winmsg.getitimer (value);
-}
-
-/* FIXME: racy */
-int __stdcall
-wininfo::getitimer (struct itimerval *value)
-{
-  *value = itv;
-  if (!timer_active)
-    {
-      value->it_value.tv_sec = 0;
-      value->it_value.tv_usec = 0;
-      return 0;
-    }
-
-  UINT elapse, val;
-
-  elapse = GetTickCount () - start_time;
-  val = itv.it_value.tv_sec * 1000 + itv.it_value.tv_usec / 1000;
-  val -= elapse;
-  value->it_value.tv_sec = val / 1000;
-  value->it_value.tv_usec = val % 1000;
-  return 0;
-}
-
-extern "C" unsigned int
-alarm (unsigned int seconds)
-{
-  int ret;
-  struct itimerval newt, oldt;
-
-  newt.it_value.tv_sec = seconds;
-  newt.it_value.tv_usec = 0;
-  newt.it_interval.tv_sec = 0;
-  newt.it_interval.tv_usec = 0;
-  setitimer (ITIMER_REAL, &newt, &oldt);
-  ret = oldt.it_value.tv_sec;
-  if (ret == 0 && oldt.it_value.tv_usec)
-    ret = 1;
-  return ret;
-}
-
-extern "C" useconds_t
-ualarm (useconds_t value, useconds_t interval)
+void
+wininfo::lock ()
 {
-  struct itimerval timer, otimer;
-
-  timer.it_value.tv_sec = 0;
-  timer.it_value.tv_usec = value;
-  timer.it_interval.tv_sec = 0;
-  timer.it_interval.tv_usec = interval;
-
-  if (setitimer (ITIMER_REAL, &timer, &otimer) < 0)
-    return (u_int)-1;
-
-  return (otimer.it_value.tv_sec * 1000000) + otimer.it_value.tv_usec;
+  new_muto (_lock)->acquire ();
 }
 
-bool
-has_visible_window_station (void)
+void
+wininfo::release ()
 {
-  HWINSTA station_hdl;
-  USEROBJECTFLAGS uof;
-  DWORD len;
-
-  /* Check if the process is associated with a visible window station.
-     These are processes running on the local desktop as well as processes
-     running in terminal server sessions.
-     Processes running in a service session not explicitely associated
-     with the desktop (using the "Allow service to interact with desktop"
-     property) are running in an invisible window station. */
-  if ((station_hdl = GetProcessWindowStation ())
-      && GetUserObjectInformationA (station_hdl, UOI_FLAGS, &uof,
-				    sizeof uof, &len)
-      && (uof.dwFlags & WSF_VISIBLE))
-    return true;
-  return false;
+  _lock->release ();
 }