* tty.h (tty::create_inuse): Add new parameter to allow non-

inheritable 'inuse' events.
* tty.cc (tty::create_inuse): Use new parameter.
* fhandler_tty.cc (fhandler_tty_master::init): Ditto.
* fhandler_tty.cc (fhandler_pty_master::open): Ditto.
* fhandler_tty.cc (fhandler_tty_master::init): Create master_alive
event.
* tty.cc (tty_list::terminate): Close master_alive event.
* fhandler_tty.cc (fhandler_tty_common::close): Send EOF to slaves
when master side is closed.

4 files changed, 29 insertions, 5 deletions

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index faecd47..3270764 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,16 @@
+2001-03-19  Egor Duda  <deo@logos-m.ru>
+
+	* tty.h (tty::create_inuse): Add new parameter to allow non-
+	inheritable 'inuse' events.
+	* tty.cc (tty::create_inuse): Use new parameter.
+	* fhandler_tty.cc (fhandler_tty_master::init): Ditto.
+	* fhandler_tty.cc (fhandler_pty_master::open): Ditto.
+	* fhandler_tty.cc (fhandler_tty_master::init): Create master_alive
+	event.
+	* tty.cc (tty_list::terminate): Close master_alive event.
+	* fhandler_tty.cc (fhandler_tty_common::close): Send EOF to slaves
+	when master side is closed.
+
 Mon Mar 19 14:32:00 2001  Corinna Vinschen <corinna@vinschen.de>
 
 	* mmap.cc (map::get_list_by_fd): Avoid calling `get_namehash' when
diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
index a2e815e..7f140a5 100644
--- a/winsup/cygwin/fhandler_tty.cc
+++ b/winsup/cygwin/fhandler_tty.cc
@@ -61,6 +61,8 @@ fhandler_tty_master::init (int ntty)
 
   cygwin_shared->tty[ttynum]->common_init (this);
 
+  inuse = get_ttyp ()->create_inuse (TTY_MASTER_ALIVE, FALSE);
+
   h = makethread (process_input, NULL, 0, "ttyin");
   if (h == NULL)
     {
@@ -482,7 +484,7 @@ fhandler_tty_slave::open (const char *, int flags, mode_t)
   /* FIXME: Needs a method to eliminate tty races */
   {
     acquire_output_mutex (500);
-    inuse = get_ttyp ()->create_inuse (TTY_SLAVE_ALIVE);
+    inuse = get_ttyp ()->create_inuse (TTY_SLAVE_ALIVE, TRUE);
     get_ttyp ()->was_opened = TRUE;
     release_output_mutex ();
   }
@@ -947,7 +949,7 @@ fhandler_pty_master::open (const char *, int flags, mode_t)
     return 0;
 
   cygwin_shared->tty[ttynum]->common_init (this);
-  inuse = get_ttyp ()->create_inuse (TTY_MASTER_ALIVE);
+  inuse = get_ttyp ()->create_inuse (TTY_MASTER_ALIVE, FALSE);
   set_flags (flags);
 
   termios_printf ("opened pty master tty%d<%p>", ttynum, this);
@@ -969,6 +971,14 @@ fhandler_tty_common::close ()
     termios_printf ("CloseHandle (output_mutex<%p>), %E", output_mutex);
   if (!ForceCloseHandle (input_mutex))
     termios_printf ("CloseHandle (input_mutex<%p>), %E", input_mutex);
+
+  /* Send EOF to slaves if master side is closed */
+  if (!get_ttyp ()->master_alive ())
+    {
+      termios_printf ("no more masters left. sending EOF" );
+      SetEvent (input_available_event);
+    }
+
   if (!ForceCloseHandle (input_available_event))
     termios_printf ("CloseHandle (input_available_event<%p>), %E", input_available_event);
   if (!ForceCloseHandle1 (get_handle (), from_pty))
diff --git a/winsup/cygwin/tty.cc b/winsup/cygwin/tty.cc
index a986ec8..b71e32a 100644
--- a/winsup/cygwin/tty.cc
+++ b/winsup/cygwin/tty.cc
@@ -138,6 +138,7 @@ tty_list::terminate (void)
       termios_printf ("tty %d master about to finish", ttynum);
       ForceCloseHandle1 (t->to_slave, to_pty);
       ForceCloseHandle1 (t->from_slave, from_pty);
+      CloseHandle (tty_master->inuse);
       WaitForSingleObject (tty_master->hThread, INFINITE);
       t->init ();
 
@@ -299,13 +300,13 @@ tty::alive (const char *fmt)
 }
 
 HANDLE
-tty::create_inuse (const char *fmt)
+tty::create_inuse (const char *fmt, BOOL inherit)
 {
   HANDLE h;
   char buf[sizeof (TTY_MASTER_ALIVE) + 16];
 
   __small_sprintf (buf, fmt, ntty);
-  h = CreateEvent (&sec_all, TRUE, FALSE, buf);
+  h = CreateEvent ((inherit ? &sec_all : &sec_all_nih), TRUE, FALSE, buf);
   termios_printf ("%s = %p", buf, h);
   if (!h)
     termios_printf ("couldn't open inuse event, %E", buf);
diff --git a/winsup/cygwin/tty.h b/winsup/cygwin/tty.h
index 43a82e0..6eb32b3 100644
--- a/winsup/cygwin/tty.h
+++ b/winsup/cygwin/tty.h
@@ -99,7 +99,7 @@ public:
   BOOL was_opened;	/* True if opened at least once. */
 
   void init ();
-  HANDLE create_inuse (const char *);
+  HANDLE create_inuse (const char *, BOOL);
   BOOL common_init (fhandler_pty_master *);
   BOOL alive (const char *fmt);
   BOOL slave_alive ();