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

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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.
This commit is contained in:
Egor Duda 2001-03-19 18:27:37 +00:00
parent 98750a8404
commit 78ace8a7e5
4 changed files with 29 additions and 5 deletions
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13
winsup/cygwin/ChangeLog
View File

@ -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

14
winsup/cygwin/fhandler_tty.cc
View File

@ -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))

5
winsup/cygwin/tty.cc
View File

@ -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);

2
winsup/cygwin/tty.h
View File

@ -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 ();