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* cygheap.h (init_cygheap::ctty_on_hold): Remove conditionalized variable.

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* dcrt0.cc (do_exit): Remove code which handled CYGWIN=tty style ttys.
* devices.in: Remove "/dev/ttym".
* dtable.cc: Rename tty to pty where appropriate throughout.
(dtable::stdio_init): Use new t->is_console rather than using now-deleted hwnd
element in tty structure.
(dtable::init_std_file_from_handle): Remove code which handled CYGWIN=tty style
ttys.
(fh_alloc): Ditto.
* fhandler.h: Rename tty to pty where appropriate.
(fhandler_pty_common): Delete output_done_event, ioctl_request_event,
ioctl_done_event.
(fhandler_pty_master::setup): Delete argument.
(fhandler_tty_master): Delete.
(fhandler_union): Delete __tty_master.
* fhandler_console.cc (use_tty): Delete.
(fhandler_console::get_tty_stuff): Set is_console to true rather than calling
sethwnd.
(fhandler_console::send_winch_maybe): Remove CYGWIN=tty considerations.
(fhandler_console::input_tcsetattr): Ditto.
* fhandler_termios.cc (fhandler_termios::tcsetpgrp): Use new t->is_console
rather than using now-deleted hwnd element in tty structure.
* fhandler_tty.cc: Rename tty to pty where appropriate throughout.
(tty_master): Delete.
(process_input): Ditto.
(process_output): Ditto.
(process_ioctl): Ditto.
(fhandler_tty_master::*): Ditto.
(fhandler_pty_master::process_slave_output): Remove CYGWIN=tty considerations.
(fhandler_pty_slave::open): Ditto for *_done_event.
(fhandler_pty_slave::write): Ditto.
(fhandler_pty_slave::ioctl): Ditto.
(fhandler_pty_slave::fch_open_handles): Ditto.
(fhandler_pty_slave::fch_set_sd): Ditto.
(fhandler_pty_slave::fch_close_handles): Ditto.
(fhandler_pty_common::close): Ditto.
(fhandler_pty_master::setup): Ditto.  Remove now-unneeded ispty parameter.
(fhandler_pty_master::open): Reflect argument removal for tty::allocate.
* select.cc: Rename tty to pty where appropriate throughout.
* sigproc.cc (proc_subproc): Remove CYGWIN=tty considerations.
* tty.cc (ttyslot): Accommodate CYGWIN=tty removal.
(tty_list::init_session): Ditto.
(tty_list::attach): Ditto.
(tty::create_master): Delete.
(tty_list::terminate): Ditto.
(tty_list::allocate): Delete "with_console" parameter.  Remove CYGWIN=tty
considerations.
(tty::init): Set is_console = false.  Use 'false' for was_opened since it is a
boolean.
* tty.h (*_{DONE,REQUEST}_EVENT): Delete.
(tty_min::is_console): Declare new field which replaces hwnd.
(tty_min::gethwnd): Delete.
(tty_min::sethwnd): Ditto.
(tty_list::allocate): Delete parameter.
(tty_list::terminate): Delete declaration.
* include/sys/cygwin.h (PID_USETTY): Redefine to PID_UNUSED1 and change comment
to reflect its availability.
This commit is contained in:
Christopher Faylor
2011-06-14 21:48:43 +00:00
parent d0009604ad
commit c75b5b2d13
15 changed files with 202 additions and 596 deletions
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180
winsup/cygwin/tty.cc
View File

@@ -23,7 +23,7 @@ details. */
#include "pinfo.h"
#include "shared_info.h"
extern fhandler_tty_master *tty_master;
HANDLE NO_COPY tty_list::mutex = NULL;
extern "C" int
posix_openpt (int oflags)
@@ -53,21 +53,18 @@ revoke (char *ttyname)
extern "C" int
ttyslot (void)
{
if (NOTSTATE (myself, PID_USETTY))
if (myself->ctty <= 0 || iscons_dev (myself->ctty))
return -1;
return device::minor (myself->ctty);
}
HANDLE NO_COPY tty_list::mutex = NULL;
void __stdcall
tty_list::init_session ()
{
char mutex_name[MAX_PATH];
/* tty_list::mutex is used while searching for a tty slot. It's necessary
while finding console window handle */
char *name = shared_name (mutex_name, "tty_list::mutex", 0);
/* tty_list::mutex is used while searching for a tty slot */
if (!(mutex = CreateMutex (&sec_all_nih, FALSE, name)))
api_fatal ("can't create tty_list::mutex '%s', %E", name);
ProtectHandle (mutex);
@@ -78,50 +75,6 @@ tty::init_session ()
{
if (!myself->cygstarted && NOTSTATE (myself, PID_CYGPARENT))
cygheap->fdtab.get_debugger_info ();
if (NOTSTATE (myself, PID_USETTY))
return;
if (myself->ctty != -1)
/* nothing to do */;
else if (NOTSTATE (myself, PID_CYGPARENT))
myself->ctty = cygwin_shared->tty.attach (myself->ctty);
else
return;
if (myself->ctty == -1)
termios_printf ("Can't attach to tty");
}
/* Create session's master tty */
void __stdcall
tty::create_master (int ttynum)
{
device ttym = *ttym_dev;
ttym.setunit (ttynum); /* CGF FIXME device */
tty_master = (fhandler_tty_master *) build_fh_dev (ttym);
if (tty_master->init ())
api_fatal ("can't create master tty");
else
{
/* Log utmp entry */
struct utmp our_utmp;
DWORD len = sizeof our_utmp.ut_host;
bzero ((char *) &our_utmp, sizeof (utmp));
time (&our_utmp.ut_time);
strncpy (our_utmp.ut_name, getlogin (), sizeof (our_utmp.ut_name));
GetComputerName (our_utmp.ut_host, &len);
__small_sprintf (our_utmp.ut_line, "tty%d", ttynum);
if ((len = strlen (our_utmp.ut_line)) >= UT_IDLEN)
len -= UT_IDLEN;
else
len = 0;
strncpy (our_utmp.ut_id, our_utmp.ut_line + len, UT_IDLEN);
our_utmp.ut_type = USER_PROCESS;
our_utmp.ut_pid = myself->pid;
myself->ctty = FHDEV (DEV_TTYS_MAJOR, ttynum);
login (&our_utmp);
}
}
int __stdcall
@@ -132,56 +85,11 @@ tty_list::attach (int n)
res = -1;
else if (n != -1)
res = connect (device::minor (n));
else if (ISSTATE (myself, PID_USETTY))
res = allocate (true);
else
res = -1;
return res;
}
void
tty_list::terminate ()
{
if (NOTSTATE (myself, PID_USETTY))
return;
int ttynum = device::minor (myself->ctty);
/* Keep master running till there are connected clients */
if (myself->ctty != -1 && tty_master && ttys[ttynum].master_pid == myself->pid)
{
tty *t = ttys + ttynum;
/* Wait for children which rely on tty handling in this process to
go away */
for (int i = 0; ; i++)
{
if (!t->slave_alive ())
break;
if (i >= 100)
{
small_printf ("waiting for children using tty%d to terminate\n",
ttynum);
i = 0;
}
Sleep (200);
}
lock_ttys here ();
CloseHandle (tty_master->from_master);
CloseHandle (tty_master->to_master);
termios_printf ("tty %d master about to finish", ttynum);
CloseHandle (tty_master->get_io_handle ());
CloseHandle (tty_master->get_output_handle ());
t->init ();
char buf[20];
__small_sprintf (buf, "tty%d", ttynum);
logout (buf);
}
}
int
tty_list::connect (int ttynum)
{
@@ -209,83 +117,33 @@ tty_list::init ()
}
}
/* Search for tty class for our console. Allocate new tty if our process is
the only cygwin process in the current console.
/* Search for a free tty and allocate it.
Return tty number or -1 if error.
If with_console == 0, just find a free tty.
*/
int
tty_list::allocate (bool with_console)
tty_list::allocate ()
{
HWND console;
int freetty = -1;
HANDLE hmaster = NULL;
lock_ttys here;
int freetty = -1;
if (!with_console)
console = NULL;
else if (!(console = GetConsoleWindow ()))
{
termios_printf ("Can't find console window");
goto out;
}
/* Is a tty allocated for console? */
tty *t = NULL;
for (int i = 0; i < NTTYS; i++)
{
if (!ttys[i].exists ())
{
if (freetty < 0) /* Scanning? */
freetty = i; /* Yes. */
if (!with_console) /* Do we want to attach this to a console? */
break; /* No. We've got one. */
}
if (!ttys[i].exists ())
{
t = ttys + i;
t->init ();
t->setsid (-1);
freetty = i;
break;
}
/* FIXME: Is this right? We can potentially query a "nonexistent"
tty slot after falling through from the above? */
if (with_console && ttys[i].gethwnd () == console)
{
termios_printf ("console %x already associated with tty%d",
console, i);
/* Is the master alive? */
hmaster = OpenProcess (PROCESS_DUP_HANDLE, FALSE, ttys[i].master_pid);
if (hmaster)
{
CloseHandle (hmaster);
freetty = i;
goto out;
}
/* Master is dead */
freetty = i;
break;
}
}
/* There is no tty allocated to console; allocate the first free found */
if (freetty == -1)
goto out;
tty *t;
t = ttys + freetty;
t->init ();
t->setsid (-1);
t->sethwnd (console);
out:
if (freetty < 0)
system_printf ("No tty allocated");
else if (!with_console)
else
{
termios_printf ("tty%d allocated", freetty);
here.dont_release (); /* exit with mutex still held -- caller has more work to do */
}
else
{
termios_printf ("console %p associated with tty%d", console, freetty);
if (!hmaster)
tty::create_master (freetty);
}
return freetty;
}
@@ -358,9 +216,9 @@ tty::init ()
output_stopped = 0;
setsid (0);
pgid = 0;
hwnd = NULL;
was_opened = 0;
was_opened = false;
master_pid = 0;
is_console = false;
}
HANDLE