* dcrt0.cc (dll_crt0_0): Call tty_list::init_session here.
(dll_crt0_1): Reflect renaming from tty_init to tty::init_session. (do_exit): Reflect moving of tty_terminate into tty_list. * exceptions.cc (events_init): Move tty_mutex stuff elsewhere. * fhandler_console.cc (set_console_title): Use lock_ttys class. * fhandler_termios.cc (fhandler_termios::bg_check): Make debug output more accurate. * fhandler_tty.cc (fhandler_tty_slave::open): Reflect move of attach_tty into tty_list class. Don't attempt to grab master end of pty if master doesn't exist. (fhandler_pty_master::open): Reflect move of allocate_tty into tty_list class. Use lock_ttys::release to release mutex. Improve debugging output. (fhandler_pty_master::setup): Remove if 0'ed block. Fix argument to SetNamedPipeHandleState. * pinfo.cc (_pinfo::set_ctty): Lock ttys before setting sid/pgid. Improve debugging. Add temporary debugging. * tty.cc (tty_list::init_session): New function. (tty::init_session): Rename from tty_init. Reflect move of attach_tty to tty_list class. (tty::create_master): Rename from create_tty_master. (tty_list::attach): Rename from attach_tty. Reflect renaming of connect_tty to connect. Ditto for allocate_tty. (tty_terminate): Delete. (tty_list::terminate): Subsume tty_terminate. Use lock_ttys rather than manipulating mutex directly. (tty_list::allocate): Rename from allocate_tty. Use lock_ttys rather than manipulating mutex directly. Don't set sid here since linux apparently doesn't do this. Reflect move of create_tty_master into tty. (lock_ttys::lock_ttys): Define new constructor. (lock_ttys::release): New function. * tty.h (tty::exists): Return false immediately if !master_pid. (tty::set_master_closed): Define new function. (tty::create_master): Ditto. (tty::init_session): Ditto. (tty_list::mutex): New field. (tty_list::allocate): Define new function. (tty_list::connect): Ditto. (tty_list::attach): Ditto. (tty_list::init_session): Ditto. (lock_ttys): New class. (tty_init): Delete declaration. (tty_terminate): Ditto. (attach_tty): Ditto. (create_tty_master): Ditto.
This commit is contained in:
Christopher Faylor
parent
a615ed8023
commit
71d59a926f
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@ -1,3 +1,52 @@
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2006-06-03 Christopher Faylor <cgf@timesys.com>
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* dcrt0.cc (dll_crt0_0): Call tty_list::init_session here.
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(dll_crt0_1): Reflect renaming from tty_init to tty::init_session.
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(do_exit): Reflect moving of tty_terminate into tty_list.
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* exceptions.cc (events_init): Move tty_mutex stuff elsewhere.
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* fhandler_console.cc (set_console_title): Use lock_ttys class.
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* fhandler_termios.cc (fhandler_termios::bg_check): Make debug output
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more accurate.
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* fhandler_tty.cc (fhandler_tty_slave::open): Reflect move of
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attach_tty into tty_list class. Don't attempt to grab master end of
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pty if master doesn't exist.
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(fhandler_pty_master::open): Reflect move of allocate_tty into tty_list
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class. Use lock_ttys::release to release mutex. Improve debugging
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output.
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(fhandler_pty_master::setup): Remove if 0'ed block. Fix argument to
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SetNamedPipeHandleState.
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* pinfo.cc (_pinfo::set_ctty): Lock ttys before setting sid/pgid.
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Improve debugging. Add temporary debugging.
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* tty.cc (tty_list::init_session): New function.
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(tty::init_session): Rename from tty_init. Reflect move of attach_tty
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to tty_list class.
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(tty::create_master): Rename from create_tty_master.
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(tty_list::attach): Rename from attach_tty. Reflect renaming of
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connect_tty to connect. Ditto for allocate_tty.
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(tty_terminate): Delete.
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(tty_list::terminate): Subsume tty_terminate. Use lock_ttys rather
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than manipulating mutex directly.
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(tty_list::allocate): Rename from allocate_tty. Use lock_ttys rather
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than manipulating mutex directly. Don't set sid here since linux
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apparently doesn't do this. Reflect move of create_tty_master into
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tty.
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(lock_ttys::lock_ttys): Define new constructor.
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(lock_ttys::release): New function.
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* tty.h (tty::exists): Return false immediately if !master_pid.
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(tty::set_master_closed): Define new function.
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(tty::create_master): Ditto.
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(tty::init_session): Ditto.
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(tty_list::mutex): New field.
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(tty_list::allocate): Define new function.
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(tty_list::connect): Ditto.
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(tty_list::attach): Ditto.
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(tty_list::init_session): Ditto.
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(lock_ttys): New class.
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(tty_init): Delete declaration.
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(tty_terminate): Ditto.
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(attach_tty): Ditto.
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(create_tty_master): Ditto.
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2006-06-03 Christopher Faylor <cgf@timesys.com>
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* Makefile.in (libdl.a): New library.
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@ -768,6 +768,7 @@ dll_crt0_0 ()
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/* Initialize events */
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events_init ();
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tty_list::init_session ();
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cygheap->cwd.init ();
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@ -867,9 +868,8 @@ dll_crt0_1 (void *)
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if (!threadfunc_ix)
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system_printf ("internal error: couldn't determine location of thread function on stack. Expect signal problems.");
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/* Connect to tty. */
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tty_init ();
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tty::init_session ();
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if (!__argc)
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{
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@ -1110,7 +1110,7 @@ do_exit (int status)
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if (exit_state < ES_TTY_TERMINATE)
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{
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exit_state = ES_TTY_TERMINATE;
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tty_terminate ();
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cygwin_shared->tty.terminate ();
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}
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myself.exit (n);
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@ -369,7 +369,7 @@ try_to_debug (bool waitloop)
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/* if any of these mutexes is owned, we will fail to start any cygwin app
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until trapped app exits */
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ReleaseMutex (tty_mutex);
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lock_ttys::release ();
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/* prevent recursive exception handling */
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char* rawenv = GetEnvironmentStrings () ;
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@ -1297,22 +1297,9 @@ _cygtls::signal_exit (int rc)
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do_exit (rc);
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}
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HANDLE NO_COPY tty_mutex = NULL;
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void
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events_init ()
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{
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char *name;
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char mutex_name[CYG_MAX_PATH];
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/* tty_mutex is on while searching for a tty slot. It's necessary
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while finding console window handle */
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if (!(tty_mutex = CreateMutex (&sec_all_nih, FALSE,
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name = shared_name (mutex_name,
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"tty_mutex", 0))))
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api_fatal ("can't create title mutex '%s', %E", name);
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ProtectHandle (tty_mutex);
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mask_sync.init ("mask_sync");
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windows_system_directory[0] = '\0';
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GetSystemDirectory (windows_system_directory, sizeof (windows_system_directory) - 2);
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@ -1393,7 +1380,7 @@ _cygtls::copy_context (CONTEXT *c)
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void
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_cygtls::signal_debugger (int sig)
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{
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if (being_debugged ())
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if (isinitialized () && being_debugged ())
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{
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char sigmsg[2 * sizeof (_CYGWIN_SIGNAL_STRING " ffffffff ffffffff")];
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__small_sprintf (sigmsg, _CYGWIN_SIGNAL_STRING " %d %p %p", sig, thread_id, &thread_context);
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@ -1781,14 +1781,11 @@ fhandler_console::set_close_on_exec (bool val)
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void __stdcall
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set_console_title (char *title)
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{
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int rc;
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char buf[257];
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strncpy (buf, title, sizeof (buf) - 1);
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buf[sizeof (buf) - 1] = '\0';
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if ((rc = WaitForSingleObject (tty_mutex, 15000)) != WAIT_OBJECT_0)
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sigproc_printf ("wait for title mutex failed rc %d, %E", rc);
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lock_ttys here (15000);
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SetConsoleTitle (buf);
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ReleaseMutex (tty_mutex);
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debug_printf ("title '%s'", buf);
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}
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@ -138,8 +138,8 @@ fhandler_termios::bg_check (int sig)
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if (sig < 0)
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sig = -sig;
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termios_printf ("bg I/O pgid %d, tpgid %d, %s", myself->pgid, tc->getpgid (),
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myctty ());
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termios_printf ("bg I/O pgid %d, tpgid %d, %s, ntty tty%d", myself->pgid, tc->getpgid (),
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myctty (), tc->ntty);
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if (tc->getsid () == 0)
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{
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@ -471,7 +471,7 @@ fhandler_tty_slave::open (int flags, mode_t)
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tcinit (cygwin_shared->tty[get_unit ()]);
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attach_tty (get_unit ());
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cygwin_shared->tty.attach (get_unit ());
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set_flags ((flags & ~O_TEXT) | O_BINARY);
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/* Create synchronisation events */
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@ -537,6 +537,12 @@ fhandler_tty_slave::open (int flags, mode_t)
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|| !cygserver_attach_tty (&from_master_local, &to_master_local))
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#endif
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{
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if (get_ttyp ()->master_pid < 0)
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{
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set_errno (EAGAIN);
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termios_printf ("*** master is closed");
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return 0;
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}
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pinfo p (get_ttyp ()->master_pid);
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if (!p)
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{
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@ -1087,7 +1093,8 @@ fhandler_pty_master::open (int flags, mode_t)
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goto out;
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}
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int ntty = cygwin_shared->tty.allocate_tty (false);
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int ntty;
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ntty = cygwin_shared->tty.allocate (false);
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if (ntty < 0)
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return 0;
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@ -1095,10 +1102,10 @@ fhandler_pty_master::open (int flags, mode_t)
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slave.setunit (ntty);
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if (!setup (*cygwin_shared->tty[ntty]))
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{
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ReleaseMutex (tty_mutex); // lock was set in allocate_tty
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lock_ttys::release ();
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return 0;
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}
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ReleaseMutex (tty_mutex); // lock was set in allocate_tty
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lock_ttys::release ();
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set_flags ((flags & ~O_TEXT) | O_BINARY);
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set_open_status ();
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//
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@ -1112,8 +1119,9 @@ fhandler_pty_master::open (int flags, mode_t)
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out:
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usecount = 0;
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arch->usecount++;
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report_tty_counts (this, "opened master", "");
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termios_printf ("opened pty master tty%d", get_unit ());
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char buf[sizeof ("opened pty master for ttyNNNNNNNNNNN")];
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__small_sprintf (buf, "opened pty master for tty%d", get_unit ());
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report_tty_counts (this, buf, "");
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return 1;
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}
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@ -1184,8 +1192,10 @@ fhandler_pty_master::close ()
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}
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fhandler_tty_common::close ();
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if (!hExeced && get_ttyp ()->master_pid == myself->pid)
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get_ttyp ()->init ();
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if (hExeced || get_ttyp ()->master_pid != myself->pid)
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termios_printf ("not clearing: %d, master_pid %d", hExeced, get_ttyp ()->master_pid);
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else
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get_ttyp ()->set_master_closed ();
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return 0;
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}
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@ -1337,11 +1347,6 @@ fhandler_pty_master::setup (tty& t)
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/* Create communication pipes */
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#if 0 // CGF: don't think this is needed since it is handled by the constructor
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input_handle = io_handle = output_done_event = ioctl_done_event =
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ioctl_request_event = input_available_event = output_mutex = input_mutex NULL;
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#endif
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/* FIXME: should this be sec_none_nih? */
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if (!CreatePipe (&from_master, &get_output_handle (), &sec_all, 128 * 1024))
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{
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@ -1355,7 +1360,7 @@ fhandler_pty_master::setup (tty& t)
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goto err;
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}
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if (!SetNamedPipeHandleState (&get_output_handle (), &pipe_mode, NULL, NULL))
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if (!SetNamedPipeHandleState (get_output_handle (), &pipe_mode, NULL, NULL))
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termios_printf ("can't set output_handle(%p) to non-blocking mode",
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get_output_handle ());
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@ -331,14 +331,20 @@ _pinfo::set_ctty (tty_min *tc, int flags, fhandler_tty_slave *arch)
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if ((ctty < 0 || ctty == tc->ntty) && !(flags & O_NOCTTY))
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{
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ctty = tc->ntty;
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syscall_printf ("attached %s sid %d, pid %d, tty->pgid %d, tty->sid %d",
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__ctty (), sid, pid, pgid, tc->getsid ());
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lock_ttys here;
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syscall_printf ("attaching %s sid %d, pid %d, pgid %d, tty->pgid %d, tty->sid %d",
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__ctty (), sid, pid, pgid, tc->getpgid (), tc->getsid ());
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pinfo p (tc->getsid ());
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if (sid == pid && (!p || p->pid == pid || !p->exists ()))
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{
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#ifdef DEBUGGING
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debug_printf ("resetting %s sid. Was %d, now %d. pgid was %d, now %d.",
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__ctty (), tc->getsid (), sid, tc->getpgid (), pgid);
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#else
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paranoid_printf ("resetting %s sid. Was %d, now %d. pgid was %d, now %d.",
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__ctty (), tc->getsid (), sid, tc->getpgid (), pgid);
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#endif
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/* We are the session leader */
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tc->setsid (sid);
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tc->setpgid (pgid);
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@ -346,7 +352,9 @@ _pinfo::set_ctty (tty_min *tc, int flags, fhandler_tty_slave *arch)
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else
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sid = tc->getsid ();
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if (tc->getpgid () == 0)
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{debug_printf ("setting pgid to %d", pgid);
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tc->setpgid (pgid);
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}
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if (cygheap->ctty != arch)
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{
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debug_printf ("cygheap->ctty %p, arch %p", cygheap->ctty, arch);
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|
|
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|
@ -54,8 +54,23 @@ ttyslot (void)
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return myself->ctty;
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}
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HANDLE NO_COPY tty_list::mutex = NULL;
|
||||
|
||||
void __stdcall
|
||||
tty_init ()
|
||||
tty_list::init_session ()
|
||||
{
|
||||
char mutex_name[CYG_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);
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||||
if (!(mutex = CreateMutex (&sec_all_nih, FALSE, name)))
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api_fatal ("can't create tty_list::mutex '%s', %E", name);
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||||
ProtectHandle (mutex);
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}
|
||||
|
||||
void __stdcall
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tty::init_session ()
|
||||
{
|
||||
if (!myself->cygstarted && NOTSTATE (myself, PID_CYGPARENT))
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cygheap->fdtab.get_debugger_info ();
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|
|
@ -64,7 +79,7 @@ tty_init ()
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return;
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||||
if (myself->ctty == -1)
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||||
if (NOTSTATE (myself, PID_CYGPARENT))
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myself->ctty = attach_tty (myself->ctty);
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myself->ctty = cygwin_shared->tty.attach (myself->ctty);
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else
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return;
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if (myself->ctty == -1)
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|
|
@ -74,7 +89,7 @@ tty_init ()
|
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/* Create session's master tty */
|
||||
|
||||
void __stdcall
|
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create_tty_master (int ttynum)
|
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tty::create_master (int ttynum)
|
||||
{
|
||||
device ttym = *ttym_dev;
|
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ttym.setunit (ttynum); /* CGF FIXME device */
|
||||
|
|
@ -104,29 +119,23 @@ create_tty_master (int ttynum)
|
|||
}
|
||||
}
|
||||
|
||||
void __stdcall
|
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tty_terminate ()
|
||||
{
|
||||
if (NOTSTATE (myself, PID_USETTY))
|
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return;
|
||||
cygwin_shared->tty.terminate ();
|
||||
}
|
||||
|
||||
int __stdcall
|
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attach_tty (int num)
|
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tty_list::attach (int num)
|
||||
{
|
||||
if (num != -1)
|
||||
{
|
||||
return cygwin_shared->tty.connect_tty (num);
|
||||
return connect (num);
|
||||
}
|
||||
if (NOTSTATE (myself, PID_USETTY))
|
||||
return -1;
|
||||
return cygwin_shared->tty.allocate_tty (true);
|
||||
return allocate (true);
|
||||
}
|
||||
|
||||
void
|
||||
tty_list::terminate ()
|
||||
{
|
||||
if (NOTSTATE (myself, PID_USETTY))
|
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return;
|
||||
int ttynum = myself->ctty;
|
||||
|
||||
/* Keep master running till there are connected clients */
|
||||
|
|
@ -151,8 +160,7 @@ tty_list::terminate ()
|
|||
low_priority_sleep (200);
|
||||
}
|
||||
|
||||
if (WaitForSingleObject (tty_mutex, INFINITE) == WAIT_FAILED)
|
||||
termios_printf ("WFSO for tty_mutex %p failed, %E", tty_mutex);
|
||||
lock_ttys here ();
|
||||
|
||||
termios_printf ("tty %d master about to finish", ttynum);
|
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CloseHandle (tty_master->get_io_handle ());
|
||||
|
|
@ -163,13 +171,11 @@ tty_list::terminate ()
|
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char buf[20];
|
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__small_sprintf (buf, "tty%d", ttynum);
|
||||
logout (buf);
|
||||
|
||||
ReleaseMutex (tty_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
tty_list::connect_tty (int ttynum)
|
||||
tty_list::connect (int ttynum)
|
||||
{
|
||||
if (ttynum < 0 || ttynum >= NTTYS)
|
||||
{
|
||||
|
|
@ -201,7 +207,7 @@ tty_list::init ()
|
|||
If flag == 0, just find a free tty.
|
||||
*/
|
||||
int
|
||||
tty_list::allocate_tty (bool with_console)
|
||||
tty_list::allocate (bool with_console)
|
||||
{
|
||||
HWND console;
|
||||
int freetty = -1;
|
||||
|
|
@ -209,8 +215,7 @@ tty_list::allocate_tty (bool with_console)
|
|||
|
||||
/* FIXME: This whole function needs a protective mutex. */
|
||||
|
||||
if (WaitForSingleObject (tty_mutex, INFINITE) == WAIT_FAILED)
|
||||
termios_printf ("WFSO for tty_mutex %p failed, %E", tty_mutex);
|
||||
lock_ttys here;
|
||||
|
||||
if (!with_console)
|
||||
console = NULL;
|
||||
|
|
@ -282,26 +287,21 @@ tty_list::allocate_tty (bool with_console)
|
|||
t = ttys + freetty;
|
||||
t->init ();
|
||||
t->setsid (-1);
|
||||
t->setpgid (myself->pgid);
|
||||
t->sethwnd (console);
|
||||
|
||||
out:
|
||||
if (freetty < 0)
|
||||
{
|
||||
ReleaseMutex (tty_mutex);
|
||||
system_printf ("No tty allocated");
|
||||
}
|
||||
else if (!with_console)
|
||||
{
|
||||
termios_printf ("tty%d allocated", freetty);
|
||||
/* exit with tty_mutex still held -- caller has more work to do */
|
||||
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)
|
||||
create_tty_master (freetty);
|
||||
ReleaseMutex (tty_mutex);
|
||||
tty::create_master (freetty);
|
||||
}
|
||||
return freetty;
|
||||
}
|
||||
|
|
@ -386,3 +386,18 @@ tty::get_event (const char *fmt, BOOL manual_reset)
|
|||
termios_printf ("created event %s", buf);
|
||||
return hev;
|
||||
}
|
||||
|
||||
lock_ttys::lock_ttys (DWORD howlong): release_me (true)
|
||||
{
|
||||
if (WaitForSingleObject (tty_list::mutex, howlong) == WAIT_FAILED)
|
||||
{
|
||||
termios_printf ("WFSO for mutex %p failed, %E", tty_list::mutex);
|
||||
release_me = false;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
lock_ttys::release ()
|
||||
{
|
||||
ReleaseMutex (tty_list::mutex);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -105,6 +105,8 @@ public:
|
|||
HANDLE open_input_mutex ();
|
||||
bool exists ()
|
||||
{
|
||||
if (!master_pid)
|
||||
return false;
|
||||
HANDLE h = open_output_mutex ();
|
||||
if (h)
|
||||
{
|
||||
|
|
@ -113,24 +115,41 @@ public:
|
|||
}
|
||||
return slave_alive ();
|
||||
}
|
||||
void set_master_closed () {master_pid = -1;}
|
||||
static void __stdcall create_master (int);
|
||||
static void __stdcall init_session ();
|
||||
friend class fhandler_pty_master;
|
||||
};
|
||||
|
||||
class tty_list
|
||||
{
|
||||
tty ttys[NTTYS];
|
||||
static HANDLE mutex;
|
||||
|
||||
public:
|
||||
tty * operator [](int n) {return ttys + n;}
|
||||
int allocate_tty (bool); /* true if allocate a tty, pty otherwise */
|
||||
int connect_tty (int);
|
||||
int allocate (bool); /* true if allocate a tty, pty otherwise */
|
||||
int connect (int);
|
||||
void terminate ();
|
||||
void init ();
|
||||
tty_min *get_tty (int n);
|
||||
int __stdcall attach (int);
|
||||
static void __stdcall init_session ();
|
||||
friend class lock_ttys;
|
||||
};
|
||||
|
||||
class lock_ttys
|
||||
{
|
||||
bool release_me;
|
||||
public:
|
||||
lock_ttys (DWORD = INFINITE);
|
||||
static void release ();
|
||||
void dont_release () {release_me = false;}
|
||||
~lock_ttys ()
|
||||
{
|
||||
if (release_me)
|
||||
release ();
|
||||
}
|
||||
};
|
||||
|
||||
void __stdcall tty_init ();
|
||||
void __stdcall tty_terminate ();
|
||||
int __stdcall attach_tty (int);
|
||||
void __stdcall create_tty_master (int);
|
||||
extern "C" int ttyslot (void);
|
||||
|
|
|
|||
Loading…
Reference in New Issue