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

* 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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,68 @@
2011-06-14 Christopher Faylor <me.cygwin2011@cgf.cx>
* cygheap.h (init_cygheap::ctty_on_hold): Remove conditionalized
variable.
* 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.
2011-06-13 Christopher Faylor <me.cygwin2011@cgf.cx> 2011-06-13 Christopher Faylor <me.cygwin2011@cgf.cx>
* fhandler_tty_slave.cc (fhandler_tty_slave::fhandler_tty_slave): * fhandler_tty_slave.cc (fhandler_tty_slave::fhandler_tty_slave):

3
winsup/cygwin/cygheap.h
View File

@ -294,9 +294,6 @@ struct init_cygheap: public mini_cygheap
struct sigaction *sigs; struct sigaction *sigs;
fhandler_termios *ctty; /* Current tty */ fhandler_termios *ctty; /* Current tty */
#ifdef NEWVFORK
fhandler_tty_slave *ctty_on_hold;
#endif
struct _cygtls **threadlist; struct _cygtls **threadlist;
size_t sthreads; size_t sthreads;
pid_t pid; /* my pid */ pid_t pid; /* my pid */

6
winsup/cygwin/dcrt0.cc
View File

@ -1045,12 +1045,6 @@ do_exit (int status)
} }
if (exit_state < ES_TTY_TERMINATE)
{
exit_state = ES_TTY_TERMINATE;
cygwin_shared->tty.terminate ();
}
myself.exit (n); myself.exit (n);
} }

25
winsup/cygwin/devices.cc
View File

@ -2645,7 +2645,6 @@ static const device dev_storage[] =
{"/dev/ttyS61", BRACK(FHDEV(DEV_SERIAL_MAJOR, 61)), "\\??\\COM62"}, {"/dev/ttyS61", BRACK(FHDEV(DEV_SERIAL_MAJOR, 61)), "\\??\\COM62"},
{"/dev/ttyS62", BRACK(FHDEV(DEV_SERIAL_MAJOR, 62)), "\\??\\COM63"}, {"/dev/ttyS62", BRACK(FHDEV(DEV_SERIAL_MAJOR, 62)), "\\??\\COM63"},
{"/dev/ttyS63", BRACK(FHDEV(DEV_SERIAL_MAJOR, 63)), "\\??\\COM64"}, {"/dev/ttyS63", BRACK(FHDEV(DEV_SERIAL_MAJOR, 63)), "\\??\\COM64"},
{"/dev/ttym", BRACK(FH_TTYM), "/dev/ttym"},
{"/dev/urandom", BRACK(FH_URANDOM), "/dev/urandom"}, {"/dev/urandom", BRACK(FH_URANDOM), "/dev/urandom"},
{"/dev/windows", BRACK(FH_WINDOWS), "/dev/windows"}, {"/dev/windows", BRACK(FH_WINDOWS), "/dev/windows"},
{"/dev/zero", BRACK(FH_ZERO), "/dev/zero"} {"/dev/zero", BRACK(FH_ZERO), "/dev/zero"}
@ -2653,9 +2652,8 @@ static const device dev_storage[] =
const device *cons_dev = dev_storage + 20; const device *cons_dev = dev_storage + 20;
const device *console_dev = dev_storage + 84; const device *console_dev = dev_storage + 84;
const device *ttym_dev = dev_storage + 2577;
const device *ttys_dev = dev_storage + 2449; const device *ttys_dev = dev_storage + 2449;
const device *urandom_dev = dev_storage + 2578; const device *urandom_dev = dev_storage + 2577;
static KR_device_t KR_find_keyword (const char *KR_keyword, int KR_length) static KR_device_t KR_find_keyword (const char *KR_keyword, int KR_length)
@ -3839,21 +3837,6 @@ return NULL;
case 'y': case 'y':
switch (KR_keyword [8]) switch (KR_keyword [8])
{ {
case 'm':
if (strncmp (KR_keyword, "/dev/ttym", 9) == 0)
{
{
return dev_storage + 2577;
}
}
else
{
{
return NULL;
}
}
case '9': case '9':
switch (KR_keyword [5]) switch (KR_keyword [5])
{ {
@ -5358,7 +5341,7 @@ return NULL;
if (strncmp (KR_keyword, "/dev/zero", 9) == 0) if (strncmp (KR_keyword, "/dev/zero", 9) == 0)
{ {
{ {
return dev_storage + 2580; return dev_storage + 2579;
} }
} }
@ -44583,7 +44566,7 @@ return NULL;
if (strncmp (KR_keyword, "/dev/windows", 12) == 0) if (strncmp (KR_keyword, "/dev/windows", 12) == 0)
{ {
{ {
return dev_storage + 2579; return dev_storage + 2578;
} }
} }
@ -44598,7 +44581,7 @@ return NULL;
if (strncmp (KR_keyword, "/dev/urandom", 12) == 0) if (strncmp (KR_keyword, "/dev/urandom", 12) == 0)
{ {
{ {
return dev_storage + 2578; return dev_storage + 2577;
} }
} }

1
winsup/cygwin/devices.in
View File

@ -69,7 +69,6 @@ const device dev_error_storage =
"/dev/tty%(0-63)d", BRACK(FHDEV(DEV_TTYS_MAJOR, {$1})), "/dev/tty{$1}", ttys_dev "/dev/tty%(0-63)d", BRACK(FHDEV(DEV_TTYS_MAJOR, {$1})), "/dev/tty{$1}", ttys_dev
"/dev/cons%(0-63)d", BRACK(FHDEV(DEV_CONS_MAJOR, {$1})), "/dev/cons{$1}", cons_dev "/dev/cons%(0-63)d", BRACK(FHDEV(DEV_CONS_MAJOR, {$1})), "/dev/cons{$1}", cons_dev
"/dev/console", BRACK(FH_CONSOLE), "/dev/console", console_dev "/dev/console", BRACK(FH_CONSOLE), "/dev/console", console_dev
"/dev/ttym", BRACK(FH_TTYM), "/dev/ttym", ttym_dev
"/dev/ptmx", BRACK(FH_PTYM), "/dev/ptmx" "/dev/ptmx", BRACK(FH_PTYM), "/dev/ptmx"
"/dev/windows", BRACK(FH_WINDOWS), "/dev/windows" "/dev/windows", BRACK(FH_WINDOWS), "/dev/windows"
"/dev/dsp", BRACK(FH_OSS_DSP), "/dev/dsp" "/dev/dsp", BRACK(FH_OSS_DSP), "/dev/dsp"

15
winsup/cygwin/dtable.cc
View File

@ -154,7 +154,7 @@ dtable::stdio_init ()
if (myself->cygstarted || ISSTATE (myself, PID_CYGPARENT)) if (myself->cygstarted || ISSTATE (myself, PID_CYGPARENT))
{ {
tty_min *t = cygwin_shared->tty.get_cttyp (); tty_min *t = cygwin_shared->tty.get_cttyp ();
if (t && t->getpgid () == myself->pid && t->gethwnd ()) if (t && t->getpgid () == myself->pid && t->is_console)
init_console_handler (true); init_console_handler (true);
return; return;
} }
@ -309,12 +309,10 @@ dtable::init_std_file_from_handle (int fd, HANDLE handle)
|| GetNumberOfConsoleInputEvents (handle, (DWORD *) &buf)) || GetNumberOfConsoleInputEvents (handle, (DWORD *) &buf))
{ {
/* Console I/O */ /* Console I/O */
if (!ISSTATE (myself, PID_USETTY)) if (myself->ctty > 0)
dev.parse (FH_CONSOLE);
else if (myself->ctty > 0)
dev.parse (myself->ctty); dev.parse (myself->ctty);
else else
dev.parse (FH_TTY); dev.parse (FH_CONSOLE);
} }
else if (GetCommState (handle, &dcb)) else if (GetCommState (handle, &dcb))
/* FIXME: Not right - assumes ttyS0 */ /* FIXME: Not right - assumes ttyS0 */
@ -433,10 +431,7 @@ fh_alloc (device dev)
switch (dev.get_major ()) switch (dev.get_major ())
{ {
case DEV_TTYS_MAJOR: case DEV_TTYS_MAJOR:
fh = cnew (fhandler_tty_slave) (dev.get_minor ()); fh = cnew (fhandler_pty_slave) (dev.get_minor ());
break;
case DEV_TTYM_MAJOR:
fh = cnew (fhandler_tty_master) ();
break; break;
case DEV_CYGDRIVE_MAJOR: case DEV_CYGDRIVE_MAJOR:
fh = cnew (fhandler_cygdrive) (); fh = cnew (fhandler_cygdrive) ();
@ -543,7 +538,7 @@ fh_alloc (device dev)
if (iscons_dev (myself->ctty)) if (iscons_dev (myself->ctty))
fh = cnew (fhandler_console) (dev); fh = cnew (fhandler_console) (dev);
else else
fh = cnew (fhandler_tty_slave) (myself->ctty); fh = cnew (fhandler_pty_slave) (myself->ctty);
break; break;
} }
case FH_KMSG: case FH_KMSG:

49
winsup/cygwin/fhandler.h
View File

@ -901,7 +901,7 @@ class fhandler_serial: public fhandler_base
void fixup_after_exec (); void fixup_after_exec ();
/* We maintain a pgrp so that tcsetpgrp and tcgetpgrp work, but we /* We maintain a pgrp so that tcsetpgrp and tcgetpgrp work, but we
don't use it for permissions checking. fhandler_tty_slave does don't use it for permissions checking. fhandler_pty_slave does
permission checking on pgrps. */ permission checking on pgrps. */
virtual int tcgetpgrp () { return pgrp_; } virtual int tcgetpgrp () { return pgrp_; }
virtual int tcsetpgrp (const pid_t pid) { pgrp_ = pid; return 0; } virtual int tcsetpgrp (const pid_t pid) { pgrp_ = pid; return 0; }
@ -1132,22 +1132,16 @@ private:
friend tty_min * tty_list::get_cttyp (); friend tty_min * tty_list::get_cttyp ();
}; };
class fhandler_tty_common: public fhandler_termios class fhandler_pty_common: public fhandler_termios
{ {
public: public:
fhandler_tty_common () fhandler_pty_common ()
: fhandler_termios (), output_done_event (NULL), : fhandler_termios (),
ioctl_request_event (NULL), ioctl_done_event (NULL), output_mutex (NULL), output_mutex (NULL),
input_mutex (NULL), input_available_event (NULL) input_mutex (NULL), input_available_event (NULL)
{ {
// nothing to do // nothing to do
} }
HANDLE output_done_event; // Raised by master when tty's output buffer
// written. Write status in tty::write_retval.
HANDLE ioctl_request_event; // Raised by slave to perform ioctl() request.
// Ioctl() request in tty::cmd/arg.
HANDLE ioctl_done_event; // Raised by master on ioctl() completion.
// Ioctl() status in tty::ioctl_retval.
HANDLE output_mutex, input_mutex; HANDLE output_mutex, input_mutex;
HANDLE input_available_event; HANDLE input_available_event;
@ -1162,7 +1156,7 @@ class fhandler_tty_common: public fhandler_termios
select_record *select_except (select_stuff *); select_record *select_except (select_stuff *);
}; };
class fhandler_tty_slave: public fhandler_tty_common class fhandler_pty_slave: public fhandler_pty_common
{ {
HANDLE inuse; // used to indicate that a tty is in use HANDLE inuse; // used to indicate that a tty is in use
@ -1173,7 +1167,7 @@ class fhandler_tty_slave: public fhandler_tty_common
public: public:
/* Constructor */ /* Constructor */
fhandler_tty_slave (int); fhandler_pty_slave (int);
bool use_archetype () const {return true;} bool use_archetype () const {return true;}
int open (int flags, mode_t mode = 0); int open (int flags, mode_t mode = 0);
@ -1201,7 +1195,7 @@ class fhandler_tty_slave: public fhandler_tty_common
size_t size () const { return sizeof (*this);} size_t size () const { return sizeof (*this);}
}; };
class fhandler_pty_master: public fhandler_tty_common class fhandler_pty_master: public fhandler_pty_common
{ {
int pktmode; // non-zero if pty in a packet mode. int pktmode; // non-zero if pty in a packet mode.
HANDLE master_ctl; // Control socket for handle duplication HANDLE master_ctl; // Control socket for handle duplication
@ -1210,6 +1204,7 @@ class fhandler_pty_master: public fhandler_tty_common
public: public:
int need_nl; // Next read should start with \n int need_nl; // Next read should start with \n
DWORD dwProcessId; // Owner of master handles DWORD dwProcessId; // Owner of master handles
HANDLE from_master, to_master;
/* Constructor */ /* Constructor */
fhandler_pty_master (); fhandler_pty_master ();
@ -1232,29 +1227,12 @@ public:
char *ptsname (); char *ptsname ();
HANDLE from_master, to_master;
bool hit_eof (); bool hit_eof ();
bool setup (bool); bool setup ();
int dup (fhandler_base *); int dup (fhandler_base *);
void fixup_after_fork (HANDLE parent); void fixup_after_fork (HANDLE parent);
void fixup_after_exec (); void fixup_after_exec ();
int tcgetpgrp (); int tcgetpgrp ();
virtual bool is_tty_master () const {return false;}
size_t size () const { return sizeof (*this);}
};
class fhandler_tty_master: public fhandler_pty_master
{
public:
/* Constructor */
fhandler_console *console; // device handler to perform real i/o.
bool use_archetype () const {return false;}
fhandler_tty_master ();
int init ();
int init_console ();
void set_winsize (bool);
bool is_tty_master () const {return true;}
size_t size () const { return sizeof (*this);} size_t size () const { return sizeof (*this);}
}; };
@ -1567,7 +1545,7 @@ struct fhandler_nodevice: public fhandler_base
#define report_tty_counts(fh, call, use_op) \ #define report_tty_counts(fh, call, use_op) \
termios_printf ("%s %s, %susecount %d",\ termios_printf ("%s %s, %susecount %d",\
fh->ttyname (), call,\ fh->ttyname (), call,\
use_op, ((fhandler_tty_slave *) (fh->archetype ?: fh))->usecount); use_op, ((fhandler_pty_slave *) (fh->archetype ?: fh))->usecount);
typedef union typedef union
{ {
@ -1599,9 +1577,8 @@ typedef union
char __serial[sizeof (fhandler_serial)]; char __serial[sizeof (fhandler_serial)];
char __socket[sizeof (fhandler_socket)]; char __socket[sizeof (fhandler_socket)];
char __termios[sizeof (fhandler_termios)]; char __termios[sizeof (fhandler_termios)];
char __tty_common[sizeof (fhandler_tty_common)]; char __pty_common[sizeof (fhandler_pty_common)];
char __tty_master[sizeof (fhandler_tty_master)]; char __pty_slave[sizeof (fhandler_pty_slave)];
char __tty_slave[sizeof (fhandler_tty_slave)];
char __virtual[sizeof (fhandler_virtual)]; char __virtual[sizeof (fhandler_virtual)];
char __windows[sizeof (fhandler_windows)]; char __windows[sizeof (fhandler_windows)];
} fhandler_union; } fhandler_union;

17
winsup/cygwin/fhandler_console.cc
View File

@ -49,8 +49,6 @@ details. */
#define srTop (dev_state.info.winTop + dev_state.scroll_region.Top) #define srTop (dev_state.info.winTop + dev_state.scroll_region.Top)
#define srBottom ((dev_state.scroll_region.Bottom < 0) ? dev_state.info.winBottom : dev_state.info.winTop + dev_state.scroll_region.Bottom) #define srBottom ((dev_state.scroll_region.Bottom < 0) ? dev_state.info.winBottom : dev_state.info.winTop + dev_state.scroll_region.Bottom)
#define use_tty ISSTATE (myself, PID_USETTY)
const char *get_nonascii_key (INPUT_RECORD&, char *); const char *get_nonascii_key (INPUT_RECORD&, char *);
const unsigned fhandler_console::MAX_WRITE_CHARS = 16384; const unsigned fhandler_console::MAX_WRITE_CHARS = 16384;
@ -191,7 +189,7 @@ fhandler_console::get_tty_stuff ()
dev_state.meta_mask |= RIGHT_ALT_PRESSED; dev_state.meta_mask |= RIGHT_ALT_PRESSED;
dev_state.set_default_attr (); dev_state.set_default_attr ();
dev_state.backspace_keycode = CERASE; dev_state.backspace_keycode = CERASE;
shared_console_info->tty_min_state.sethwnd ((HWND) INVALID_HANDLE_VALUE); shared_console_info->tty_min_state.is_console = true;
} }
} }
@ -265,13 +263,9 @@ fhandler_console::send_winch_maybe ()
if (y != dev_state.info.dwWinSize.Y || x != dev_state.info.dwWinSize.X) if (y != dev_state.info.dwWinSize.Y || x != dev_state.info.dwWinSize.X)
{ {
extern fhandler_tty_master *tty_master;
dev_state.scroll_region.Top = 0; dev_state.scroll_region.Top = 0;
dev_state.scroll_region.Bottom = -1; dev_state.scroll_region.Bottom = -1;
if (tty_master) tc ()->kill_pgrp (SIGWINCH);
tty_master->set_winsize (true);
else
tc ()->kill_pgrp (SIGWINCH);
} }
} }
@ -977,13 +971,6 @@ fhandler_console::input_tcsetattr (int, struct termios const *t)
flags |= ENABLE_PROCESSED_INPUT; flags |= ENABLE_PROCESSED_INPUT;
} }
if (use_tty)
{
flags = 0; // ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
tc ()->ti.c_iflag = 0;
tc ()->ti.c_lflag = 0;
}
flags |= ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT; flags |= ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT;
int res; int res;

2
winsup/cygwin/fhandler_termios.cc
View File

@ -78,7 +78,7 @@ fhandler_termios::tcsetpgrp (const pid_t pgid)
{ {
case bg_ok: case bg_ok:
tc ()->setpgid (pgid); tc ()->setpgid (pgid);
init_console_handler (tc ()->gethwnd ()); init_console_handler (tc ()->is_console);
res = 0; res = 0;
break; break;
case bg_signalled: case bg_signalled:

411
winsup/cygwin/fhandler_tty.cc
View File

@ -42,60 +42,12 @@ struct pipe_reply {
DWORD error; DWORD error;
}; };
/* tty master stuff */
fhandler_tty_master NO_COPY *tty_master;
static void WINAPI process_input (void *) __attribute__((noreturn)); // Input queue thread
static void WINAPI process_output (void *) __attribute__((noreturn)); // Output queue thread
static void WINAPI process_ioctl (void *) __attribute__((noreturn)); // Ioctl requests thread
fhandler_tty_master::fhandler_tty_master ()
: fhandler_pty_master (), console (NULL)
{
}
int int
fhandler_tty_slave::get_unit () fhandler_pty_slave::get_unit ()
{ {
return dev ().get_minor (); return dev ().get_minor ();
} }
void
fhandler_tty_master::set_winsize (bool sendSIGWINCH)
{
winsize w;
console->ioctl (TIOCGWINSZ, &w);
get_ttyp ()->winsize = w;
if (sendSIGWINCH)
tc ()->kill_pgrp (SIGWINCH);
}
int
fhandler_tty_master::init ()
{
termios_printf ("Creating master for tty%d", get_unit ());
if (init_console ())
{
termios_printf ("can't create fhandler");
return -1;
}
if (!setup (false))
return 1;
set_winsize (false);
set_close_on_exec (true);
new cygthread (process_input, cygself, "ttyin");
new cygthread (process_ioctl, cygself, "ttyioctl");
new cygthread (process_output, cygself, "ttyout");
return 0;
}
#ifdef DEBUGGING #ifdef DEBUGGING
static class mutex_stack static class mutex_stack
{ {
@ -109,17 +61,17 @@ static int osi;
#endif /*DEBUGGING*/ #endif /*DEBUGGING*/
DWORD DWORD
fhandler_tty_common::__acquire_output_mutex (const char *fn, int ln, fhandler_pty_common::__acquire_output_mutex (const char *fn, int ln,
DWORD ms) DWORD ms)
{ {
if (strace.active ()) if (strace.active ())
strace.prntf (_STRACE_TERMIOS, fn, "(%d): tty output_mutex (%p): waiting %d ms", ln, output_mutex, ms); strace.prntf (_STRACE_TERMIOS, fn, "(%d): pty output_mutex (%p): waiting %d ms", ln, output_mutex, ms);
DWORD res = WaitForSingleObject (output_mutex, ms); DWORD res = WaitForSingleObject (output_mutex, ms);
if (res == WAIT_OBJECT_0) if (res == WAIT_OBJECT_0)
{ {
#ifndef DEBUGGING #ifndef DEBUGGING
if (strace.active ()) if (strace.active ())
strace.prntf (_STRACE_TERMIOS, fn, "(%d): tty output_mutex: acquired", ln, res); strace.prntf (_STRACE_TERMIOS, fn, "(%d): pty output_mutex: acquired", ln, res);
#else #else
ostack[osi].fn = fn; ostack[osi].fn = fn;
ostack[osi].ln = ln; ostack[osi].ln = ln;
@ -132,13 +84,13 @@ fhandler_tty_common::__acquire_output_mutex (const char *fn, int ln,
} }
void void
fhandler_tty_common::__release_output_mutex (const char *fn, int ln) fhandler_pty_common::__release_output_mutex (const char *fn, int ln)
{ {
if (ReleaseMutex (output_mutex)) if (ReleaseMutex (output_mutex))
{ {
#ifndef DEBUGGING #ifndef DEBUGGING
if (strace.active ()) if (strace.active ())
strace.prntf (_STRACE_TERMIOS, fn, "(%d): tty output_mutex(%p) released", ln, output_mutex); strace.prntf (_STRACE_TERMIOS, fn, "(%d): pty output_mutex(%p) released", ln, output_mutex);
#else #else
if (osi > 0) if (osi > 0)
osi--; osi--;
@ -156,7 +108,7 @@ fhandler_tty_common::__release_output_mutex (const char *fn, int ln)
#endif #endif
} }
/* Process tty input. */ /* Process pty input. */
void void
fhandler_pty_master::doecho (const void *str, DWORD len) fhandler_pty_master::doecho (const void *str, DWORD len)
@ -164,7 +116,6 @@ fhandler_pty_master::doecho (const void *str, DWORD len)
acquire_output_mutex (INFINITE); acquire_output_mutex (INFINITE);
if (!WriteFile (to_master, str, len, &len, NULL)) if (!WriteFile (to_master, str, len, &len, NULL))
termios_printf ("Write to %p failed, %E", to_master); termios_printf ("Write to %p failed, %E", to_master);
// WaitForSingleObject (output_done_event, INFINITE);
release_output_mutex (); release_output_mutex ();
} }
@ -216,21 +167,6 @@ fhandler_pty_master::accept_input ()
return ret; return ret;
} }
static void WINAPI
process_input (void *)
{
char rawbuf[INP_BUFFER_SIZE];
while (1)
{
size_t nraw = INP_BUFFER_SIZE;
tty_master->console->read ((void *) rawbuf, nraw);
if (tty_master->line_edit (rawbuf, nraw, tty_master->get_ttyp ()->ti)
== line_edit_signalled)
tty_master->console->eat_readahead (-1);
}
}
bool bool
fhandler_pty_master::hit_eof () fhandler_pty_master::hit_eof ()
{ {
@ -245,7 +181,7 @@ fhandler_pty_master::hit_eof ()
return 0; return 0;
} }
/* Process tty output requests */ /* Process pty output requests */
int int
fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on) fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on)
@ -311,12 +247,6 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
if ((get_ttyp ()->ti.c_lflag & FLUSHO || !buf)) if ((get_ttyp ()->ti.c_lflag & FLUSHO || !buf))
goto out; goto out;
if (is_tty_master ())
{
Sleep (10);
continue;
}
if (is_nonblocking ()) if (is_nonblocking ())
{ {
set_errno (EAGAIN); set_errno (EAGAIN);
@ -342,8 +272,6 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
termios_printf ("bytes read %u", n); termios_printf ("bytes read %u", n);
get_ttyp ()->write_error = 0; get_ttyp ()->write_error = 0;
if (output_done_event != NULL)
SetEvent (output_done_event);
if (get_ttyp ()->ti.c_lflag & FLUSHO || !buf) if (get_ttyp ()->ti.c_lflag & FLUSHO || !buf)
continue; continue;
@ -424,69 +352,23 @@ out:
return rc; return rc;
} }
static void WINAPI /* pty slave stuff */
process_output (void *)
{
char buf[OUT_BUFFER_SIZE * 2];
for (;;) fhandler_pty_slave::fhandler_pty_slave (int unit)
{ : fhandler_pty_common (), inuse (NULL)
int n = tty_master->process_slave_output (buf, OUT_BUFFER_SIZE, 0);
if (n > 0)
{
n = tty_master->console->write ((void *) buf, (size_t) n);
tty_master->get_ttyp ()->write_error = n == -1 ? get_errno () : 0;
}
else
{
if (n < 0)
termios_printf ("ReadFile %E");
ExitThread (0);
}
}
}
/* Process tty ioctl requests */
static void WINAPI
process_ioctl (void *)
{
while (1)
{
WaitForSingleObject (tty_master->ioctl_request_event, INFINITE);
termios_printf ("ioctl() request");
tty *ttyp = tty_master->get_ttyp ();
ttyp->ioctl_retval =
tty_master->console->ioctl (ttyp->cmd,
(ttyp->cmd == KDSKBMETA)
? (void *) ttyp->arg.value
: (void *) &ttyp->arg);
SetEvent (tty_master->ioctl_done_event);
}
}
/**********************************************************************/
/* Tty slave stuff */
fhandler_tty_slave::fhandler_tty_slave (int unit)
: fhandler_tty_common (), inuse (NULL)
{ {
if (unit >= 0) if (unit >= 0)
dev ().parse (DEV_TTYS_MAJOR, unit); dev ().parse (DEV_TTYS_MAJOR, unit);
} }
/* FIXME: This function needs to close handles when it has
a failing condition. */
int int
fhandler_tty_slave::open (int flags, mode_t) fhandler_pty_slave::open (int flags, mode_t)
{ {
HANDLE tty_owner, from_master_local, to_master_local; HANDLE pty_owner, from_master_local, to_master_local;
HANDLE *handles[] = HANDLE *handles[] =
{ {
&from_master_local, &input_available_event, &input_mutex, &inuse, &from_master_local, &input_available_event, &input_mutex, &inuse,
&ioctl_done_event, &ioctl_request_event, &output_done_event, &output_mutex, &to_master_local, &pty_owner,
&output_mutex, &to_master_local, &tty_owner,
NULL NULL
}; };
@ -502,14 +384,6 @@ fhandler_tty_slave::open (int flags, mode_t)
/* Create synchronisation events */ /* Create synchronisation events */
char buf[MAX_PATH]; char buf[MAX_PATH];
/* output_done_event may or may not exist. It will exist if the tty
was opened by fhandler_tty_master::init, normally called at
startup if use_tty is non-zero. It will not exist if this is a
pty opened by fhandler_pty_master::open. In the former case, tty
output is handled by a separate thread which controls output. */
shared_name (buf, OUTPUT_DONE_EVENT, get_unit ());
output_done_event = OpenEvent (MAXIMUM_ALLOWED, TRUE, buf);
const char *errmsg = NULL; const char *errmsg = NULL;
if (!(output_mutex = get_ttyp ()->open_output_mutex (MAXIMUM_ALLOWED))) if (!(output_mutex = get_ttyp ()->open_output_mutex (MAXIMUM_ALLOWED)))
@ -529,13 +403,6 @@ fhandler_tty_slave::open (int flags, mode_t)
goto err; goto err;
} }
/* The ioctl events may or may not exist. See output_done_event,
above. */
shared_name (buf, IOCTL_REQUEST_EVENT, get_unit ());
ioctl_request_event = OpenEvent (MAXIMUM_ALLOWED, TRUE, buf);
shared_name (buf, IOCTL_DONE_EVENT, get_unit ());
ioctl_done_event = OpenEvent (MAXIMUM_ALLOWED, TRUE, buf);
/* FIXME: Needs a method to eliminate tty races */ /* FIXME: Needs a method to eliminate tty races */
{ {
/* Create security attribute. Default permissions are 0620. */ /* Create security attribute. Default permissions are 0620. */
@ -555,7 +422,7 @@ fhandler_tty_slave::open (int flags, mode_t)
if (!get_ttyp ()->from_master || !get_ttyp ()->to_master) if (!get_ttyp ()->from_master || !get_ttyp ()->to_master)
{ {
errmsg = "tty handles have been closed"; errmsg = "pty handles have been closed";
set_errno (EACCES); set_errno (EACCES);
goto err_no_errno; goto err_no_errno;
} }
@ -578,23 +445,23 @@ fhandler_tty_slave::open (int flags, mode_t)
{ {
/* This is the most common case, just calling openpty. */ /* This is the most common case, just calling openpty. */
termios_printf ("dup handles within myself."); termios_printf ("dup handles within myself.");
tty_owner = GetCurrentProcess (); pty_owner = GetCurrentProcess ();
} }
else else
{ {
pinfo p (get_ttyp ()->master_pid); pinfo p (get_ttyp ()->master_pid);
if (!p) if (!p)
termios_printf ("*** couldn't find tty master"); termios_printf ("*** couldn't find pty master");
else else
{ {
tty_owner = OpenProcess (PROCESS_DUP_HANDLE, FALSE, p->dwProcessId); pty_owner = OpenProcess (PROCESS_DUP_HANDLE, FALSE, p->dwProcessId);
if (tty_owner) if (pty_owner)
termios_printf ("dup handles directly since I'm allmighty."); termios_printf ("dup handles directly since I'm allmighty.");
} }
} }
if (tty_owner) if (pty_owner)
{ {
if (!DuplicateHandle (tty_owner, get_ttyp ()->from_master, if (!DuplicateHandle (pty_owner, get_ttyp ()->from_master,
GetCurrentProcess (), &from_master_local, 0, TRUE, GetCurrentProcess (), &from_master_local, 0, TRUE,
DUPLICATE_SAME_ACCESS)) DUPLICATE_SAME_ACCESS))
{ {
@ -603,15 +470,15 @@ fhandler_tty_slave::open (int flags, mode_t)
__seterrno (); __seterrno ();
goto err_no_msg; goto err_no_msg;
} }
if (!DuplicateHandle (tty_owner, get_ttyp ()->to_master, if (!DuplicateHandle (pty_owner, get_ttyp ()->to_master,
GetCurrentProcess (), &to_master_local, 0, TRUE, GetCurrentProcess (), &to_master_local, 0, TRUE,
DUPLICATE_SAME_ACCESS)) DUPLICATE_SAME_ACCESS))
{ {
errmsg = "can't duplicate output, %E"; errmsg = "can't duplicate output, %E";
goto err; goto err;
} }
if (tty_owner != GetCurrentProcess ()) if (pty_owner != GetCurrentProcess ())
CloseHandle (tty_owner); CloseHandle (pty_owner);
} }
else else
{ {
@ -619,7 +486,7 @@ fhandler_tty_slave::open (int flags, mode_t)
pipe_reply repl; pipe_reply repl;
DWORD len; DWORD len;
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-tty%d-master-ctl", __small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-pty%d-master-ctl",
&installation_key, get_unit ()); &installation_key, get_unit ());
termios_printf ("dup handles via master control pipe %s", buf); termios_printf ("dup handles via master control pipe %s", buf);
if (!CallNamedPipe (buf, &req, sizeof req, &repl, sizeof repl, if (!CallNamedPipe (buf, &req, sizeof req, &repl, sizeof repl,
@ -640,9 +507,9 @@ fhandler_tty_slave::open (int flags, mode_t)
VerifyHandle (from_master_local); VerifyHandle (from_master_local);
VerifyHandle (to_master_local); VerifyHandle (to_master_local);
termios_printf ("duplicated from_master %p->%p from tty_owner", termios_printf ("duplicated from_master %p->%p from pty_owner",
get_ttyp ()->from_master, from_master_local); get_ttyp ()->from_master, from_master_local);
termios_printf ("duplicated to_master %p->%p from tty_owner", termios_printf ("duplicated to_master %p->%p from pty_owner",
get_ttyp ()->to_master, to_master_local); get_ttyp ()->to_master, to_master_local);
set_io_handle (from_master_local); set_io_handle (from_master_local);
@ -650,8 +517,7 @@ fhandler_tty_slave::open (int flags, mode_t)
set_close_on_exec (!!(flags & O_CLOEXEC)); set_close_on_exec (!!(flags & O_CLOEXEC));
set_open_status (); set_open_status ();
if (cygheap->manage_console_count ("fhandler_tty_slave::open", 1) == 1 if (cygheap->manage_console_count ("fhandler_pty_slave::open", 1) == 1)
&& !output_done_event)
fhandler_console::need_invisible (); fhandler_console::need_invisible ();
return 1; return 1;
@ -667,37 +533,37 @@ err_no_msg:
} }
void void
fhandler_tty_slave::open_setup (int flags) fhandler_pty_slave::open_setup (int flags)
{ {
set_flags ((flags & ~O_TEXT) | O_BINARY); set_flags ((flags & ~O_TEXT) | O_BINARY);
myself->set_ctty (get_ttyp (), flags, this); myself->set_ctty (get_ttyp (), flags, this);
cygheap->manage_console_count ("fhandler_tty_slave::setup", 1); cygheap->manage_console_count ("fhandler_pty_slave::setup", 1);
report_tty_counts (this, "opened", ""); report_tty_counts (this, "opened", "");
} }
void void
fhandler_tty_slave::cleanup () fhandler_pty_slave::cleanup ()
{ {
/* This used to always call fhandler_tty_common::close when hExeced but that /* This used to always call fhandler_pty_common::close when hExeced but that
caused multiple closes of the handles associated with this tty. Since caused multiple closes of the handles associated with this pty. Since
close_all_files is not called until after the cygwin process has synced close_all_files is not called until after the cygwin process has synced
or before a non-cygwin process has exited, it should be safe to just or before a non-cygwin process has exited, it should be safe to just
close this normally. cgf 2006-05-20 */ close this normally. cgf 2006-05-20 */
cygheap->manage_console_count ("fhandler_tty_slave::close", -1); cygheap->manage_console_count ("fhandler_pty_slave::close", -1);
report_tty_counts (this, "closed", ""); report_tty_counts (this, "closed", "");
} }
int int
fhandler_tty_slave::close () fhandler_pty_slave::close ()
{ {
termios_printf ("closing last open %s handle", ttyname ()); termios_printf ("closing last open %s handle", ttyname ());
if (inuse && !CloseHandle (inuse)) if (inuse && !CloseHandle (inuse))
termios_printf ("CloseHandle (inuse), %E"); termios_printf ("CloseHandle (inuse), %E");
return fhandler_tty_common::close (); return fhandler_pty_common::close ();
} }
int int
fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t) fhandler_pty_slave::init (HANDLE h, DWORD a, mode_t)
{ {
int flags = 0; int flags = 0;
@ -715,12 +581,12 @@ fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t)
{ {
/* This only occurs when called from dtable::init_std_file_from_handle /* This only occurs when called from dtable::init_std_file_from_handle
We have been started from a non-Cygwin process. So we should become We have been started from a non-Cygwin process. So we should become
tty process group leader. pty process group leader.
TODO: Investigate how SIGTTIN should be handled with pure-windows TODO: Investigate how SIGTTIN should be handled with pure-windows
programs. */ programs. */
pinfo p (tc ()->getpgid ()); pinfo p (tc ()->getpgid ());
/* We should only grab this when the process group owner for this /* We should only grab this when the process group owner for this
tty is a non-cygwin process or we've been started directly pty is a non-cygwin process or we've been started directly
from a non-Cygwin process with no Cygwin ancestry. */ from a non-Cygwin process with no Cygwin ancestry. */
if (!p || ISSTATE (p, PID_NOTCYGWIN)) if (!p || ISSTATE (p, PID_NOTCYGWIN))
{ {
@ -737,7 +603,7 @@ fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t)
} }
ssize_t __stdcall ssize_t __stdcall
fhandler_tty_slave::write (const void *ptr, size_t len) fhandler_pty_slave::write (const void *ptr, size_t len)
{ {
DWORD n, towrite = len; DWORD n, towrite = len;
@ -759,7 +625,7 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
len -= n; len -= n;
/* Previous write may have set write_error to != 0. Check it here. /* Previous write may have set write_error to != 0. Check it here.
This is less than optimal, but the alternative slows down tty This is less than optimal, but the alternative slows down pty
writes enormously. */ writes enormously. */
if (get_ttyp ()->write_error) if (get_ttyp ()->write_error)
{ {
@ -783,21 +649,13 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
towrite = (DWORD) -1; towrite = (DWORD) -1;
break; break;
} }
if (output_done_event != NULL)
{
DWORD rc;
DWORD x = n * 1000;
rc = WaitForSingleObject (output_done_event, x);
termios_printf ("waited %d ms for output_done_event, WFSO %d", x, rc);
}
} }
release_output_mutex (); release_output_mutex ();
return towrite; return towrite;
} }
void __stdcall void __stdcall
fhandler_tty_slave::read (void *ptr, size_t& len) fhandler_pty_slave::read (void *ptr, size_t& len)
{ {
int totalread = 0; int totalread = 0;
int vmin = 0; int vmin = 0;
@ -1030,9 +888,9 @@ out:
} }
int int
fhandler_tty_slave::dup (fhandler_base *child) fhandler_pty_slave::dup (fhandler_base *child)
{ {
cygheap->manage_console_count ("fhandler_tty_slave::dup", 1); cygheap->manage_console_count ("fhandler_pty_slave::dup", 1);
report_tty_counts (child, "duped slave", ""); report_tty_counts (child, "duped slave", "");
return 0; return 0;
} }
@ -1045,14 +903,14 @@ fhandler_pty_master::dup (fhandler_base *child)
} }
int int
fhandler_tty_slave::tcgetattr (struct termios *t) fhandler_pty_slave::tcgetattr (struct termios *t)
{ {
*t = get_ttyp ()->ti; *t = get_ttyp ()->ti;
return 0; return 0;
} }
int int
fhandler_tty_slave::tcsetattr (int, const struct termios *t) fhandler_pty_slave::tcsetattr (int, const struct termios *t)
{ {
acquire_output_mutex (INFINITE); acquire_output_mutex (INFINITE);
get_ttyp ()->ti = *t; get_ttyp ()->ti = *t;
@ -1061,7 +919,7 @@ fhandler_tty_slave::tcsetattr (int, const struct termios *t)
} }
int int
fhandler_tty_slave::tcflush (int queue) fhandler_pty_slave::tcflush (int queue)
{ {
int ret = 0; int ret = 0;
@ -1083,7 +941,7 @@ fhandler_tty_slave::tcflush (int queue)
} }
int int
fhandler_tty_slave::ioctl (unsigned int cmd, void *arg) fhandler_pty_slave::ioctl (unsigned int cmd, void *arg)
{ {
termios_printf ("ioctl (%x)", cmd); termios_printf ("ioctl (%x)", cmd);
@ -1139,11 +997,7 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
{ {
case TIOCGWINSZ: case TIOCGWINSZ:
get_ttyp ()->arg.winsize = get_ttyp ()->winsize; get_ttyp ()->arg.winsize = get_ttyp ()->winsize;
if (ioctl_request_event)
SetEvent (ioctl_request_event);
*(struct winsize *) arg = get_ttyp ()->arg.winsize; *(struct winsize *) arg = get_ttyp ()->arg.winsize;
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
get_ttyp ()->winsize = get_ttyp ()->arg.winsize; get_ttyp ()->winsize = get_ttyp ()->arg.winsize;
break; break;
case TIOCSWINSZ: case TIOCSWINSZ:
@ -1151,53 +1005,20 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
|| get_ttyp ()->winsize.ws_col != ((struct winsize *) arg)->ws_col) || get_ttyp ()->winsize.ws_col != ((struct winsize *) arg)->ws_col)
{ {
get_ttyp ()->arg.winsize = *(struct winsize *) arg; get_ttyp ()->arg.winsize = *(struct winsize *) arg;
if (ioctl_request_event) get_ttyp ()->winsize = *(struct winsize *) arg;
{ killsys (-get_ttyp ()->getpgid (), SIGWINCH);
get_ttyp ()->ioctl_retval = -EINVAL;
SetEvent (ioctl_request_event);
}
else
{
get_ttyp ()->winsize = *(struct winsize *) arg;
killsys (-get_ttyp ()->getpgid (), SIGWINCH);
}
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
} }
break; break;
case TIOCLINUX: case TIOCLINUX:
val = *(unsigned char *) arg; val = *(unsigned char *) arg;
if (val != 6 || !ioctl_request_event || !ioctl_done_event) if (val != 6)
get_ttyp ()->ioctl_retval = -EINVAL; get_ttyp ()->ioctl_retval = -EINVAL;
else
{
get_ttyp ()->arg.value = val;
SetEvent (ioctl_request_event);
WaitForSingleObject (ioctl_done_event, INFINITE);
*(unsigned char *) arg = (unsigned char) (get_ttyp ()->arg.value);
}
break; break;
case KDGKBMETA: case KDGKBMETA:
if (ioctl_request_event) get_ttyp ()->ioctl_retval = -EINVAL;
{
SetEvent (ioctl_request_event);
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
*(int *) arg = get_ttyp ()->arg.value;
}
else
get_ttyp ()->ioctl_retval = -EINVAL;
break; break;
case KDSKBMETA: case KDSKBMETA:
if (ioctl_request_event) get_ttyp ()->ioctl_retval = -EINVAL;
{
get_ttyp ()->arg.value = (int) arg;
SetEvent (ioctl_request_event);
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
}
else
get_ttyp ()->ioctl_retval = -EINVAL;
break; break;
} }
@ -1215,7 +1036,7 @@ out:
} }
int __stdcall int __stdcall
fhandler_tty_slave::fstat (struct __stat64 *st) fhandler_pty_slave::fstat (struct __stat64 *st)
{ {
fhandler_base::fstat (st); fhandler_base::fstat (st);
@ -1246,7 +1067,7 @@ fhandler_tty_slave::fstat (struct __stat64 *st)
/* Helper function for fchmod and fchown, which just opens all handles /* Helper function for fchmod and fchown, which just opens all handles
and signals success via bool return. */ and signals success via bool return. */
bool bool
fhandler_tty_slave::fch_open_handles () fhandler_pty_slave::fch_open_handles ()
{ {
char buf[MAX_PATH]; char buf[MAX_PATH];
@ -1262,20 +1083,13 @@ fhandler_tty_slave::fch_open_handles ()
__seterrno (); __seterrno ();
return false; return false;
} }
/* These members are optional, no error checking */
shared_name (buf, OUTPUT_DONE_EVENT, get_unit ());
output_done_event = OpenEvent (WRITE_DAC | WRITE_OWNER, TRUE, buf);
shared_name (buf, IOCTL_REQUEST_EVENT, get_unit ());
ioctl_request_event = OpenEvent (WRITE_DAC | WRITE_OWNER, TRUE, buf);
shared_name (buf, IOCTL_DONE_EVENT, get_unit ());
ioctl_done_event = OpenEvent (WRITE_DAC | WRITE_OWNER, TRUE, buf);
return true; return true;
} }
/* Helper function for fchmod and fchown, which sets the new security /* Helper function for fchmod and fchown, which sets the new security
descriptor on all objects representing the tty. */ descriptor on all objects representing the pty. */
int int
fhandler_tty_slave::fch_set_sd (security_descriptor &sd, bool chown) fhandler_pty_slave::fch_set_sd (security_descriptor &sd, bool chown)
{ {
security_descriptor sd_old; security_descriptor sd_old;
@ -1283,37 +1097,22 @@ fhandler_tty_slave::fch_set_sd (security_descriptor &sd, bool chown)
if (!set_object_sd (input_available_event, sd, chown) if (!set_object_sd (input_available_event, sd, chown)
&& !set_object_sd (output_mutex, sd, chown) && !set_object_sd (output_mutex, sd, chown)
&& !set_object_sd (input_mutex, sd, chown) && !set_object_sd (input_mutex, sd, chown)
&& !set_object_sd (inuse, sd, chown) && !set_object_sd (inuse, sd, chown))
&& (!output_done_event
|| !set_object_sd (output_done_event, sd, chown))
&& (!ioctl_request_event
|| !set_object_sd (ioctl_request_event, sd, chown))
&& (!ioctl_done_event
|| !set_object_sd (ioctl_done_event, sd, chown)))
return 0; return 0;
set_object_sd (input_available_event, sd_old, chown); set_object_sd (input_available_event, sd_old, chown);
set_object_sd (output_mutex, sd_old, chown); set_object_sd (output_mutex, sd_old, chown);
set_object_sd (input_mutex, sd_old, chown); set_object_sd (input_mutex, sd_old, chown);
set_object_sd (inuse, sd_old, chown); set_object_sd (inuse, sd_old, chown);
if (!output_done_event)
set_object_sd (output_done_event, sd_old, chown);
if (!ioctl_request_event)
set_object_sd (ioctl_request_event, sd_old, chown);
if (!ioctl_done_event)
set_object_sd (ioctl_done_event, sd_old, chown);
return -1; return -1;
} }
/* Helper function for fchmod and fchown, which closes all object handles in /* Helper function for fchmod and fchown, which closes all object handles in
the tty. */ the pty. */
void void
fhandler_tty_slave::fch_close_handles () fhandler_pty_slave::fch_close_handles ()
{ {
close_maybe (get_io_handle ()); close_maybe (get_io_handle ());
close_maybe (get_output_handle ()); close_maybe (get_output_handle ());
close_maybe (output_done_event);
close_maybe (ioctl_done_event);
close_maybe (ioctl_request_event);
close_maybe (input_available_event); close_maybe (input_available_event);
close_maybe (output_mutex); close_maybe (output_mutex);
close_maybe (input_mutex); close_maybe (input_mutex);
@ -1321,7 +1120,7 @@ fhandler_tty_slave::fch_close_handles ()
} }
int __stdcall int __stdcall
fhandler_tty_slave::fchmod (mode_t mode) fhandler_pty_slave::fchmod (mode_t mode)
{ {
int ret = -1; int ret = -1;
bool to_close = false; bool to_close = false;
@ -1347,7 +1146,7 @@ errout:
} }
int __stdcall int __stdcall
fhandler_tty_slave::fchown (__uid32_t uid, __gid32_t gid) fhandler_pty_slave::fchown (__uid32_t uid, __gid32_t gid)
{ {
int ret = -1; int ret = -1;
bool to_close = false; bool to_close = false;
@ -1385,7 +1184,7 @@ errout:
fhandler_pty_master fhandler_pty_master
*/ */
fhandler_pty_master::fhandler_pty_master () fhandler_pty_master::fhandler_pty_master ()
: fhandler_tty_common (), pktmode (0), need_nl (0), dwProcessId (0) : fhandler_pty_common (), pktmode (0), need_nl (0), dwProcessId (0)
{ {
} }
@ -1393,12 +1192,12 @@ int
fhandler_pty_master::open (int flags, mode_t) fhandler_pty_master::open (int flags, mode_t)
{ {
/* Note that allocate returns with the tty lock set if it was successful. */ /* Note that allocate returns with the tty lock set if it was successful. */
int unit = cygwin_shared->tty.allocate (false); int unit = cygwin_shared->tty.allocate ();
if (unit < 0) if (unit < 0)
return 0; return 0;
dev().parse (DEV_TTYM_MAJOR, unit); dev().parse (DEV_TTYM_MAJOR, unit);
if (!setup (true)) if (!setup ())
{ {
lock_ttys::release (); lock_ttys::release ();
return 0; return 0;
@ -1416,22 +1215,16 @@ fhandler_pty_master::open (int flags, mode_t)
} }
_off64_t _off64_t
fhandler_tty_common::lseek (_off64_t, int) fhandler_pty_common::lseek (_off64_t, int)
{ {
set_errno (ESPIPE); set_errno (ESPIPE);
return -1; return -1;
} }
int int
fhandler_tty_common::close () fhandler_pty_common::close ()
{ {
termios_printf ("tty%d <%p,%p> closing", get_unit (), get_handle (), get_output_handle ()); termios_printf ("tty%d <%p,%p> closing", get_unit (), get_handle (), get_output_handle ());
if (output_done_event && !CloseHandle (output_done_event))
termios_printf ("CloseHandle (output_done_event), %E");
if (ioctl_done_event && !CloseHandle (ioctl_done_event))
termios_printf ("CloseHandle (ioctl_done_event), %E");
if (ioctl_request_event && !CloseHandle (ioctl_request_event))
termios_printf ("CloseHandle (ioctl_request_event), %E");
if (!ForceCloseHandle (input_mutex)) if (!ForceCloseHandle (input_mutex))
termios_printf ("CloseHandle (input_mutex<%p>), %E", input_mutex); termios_printf ("CloseHandle (input_mutex<%p>), %E", input_mutex);
if (!ForceCloseHandle (output_mutex)) if (!ForceCloseHandle (output_mutex))
@ -1472,7 +1265,7 @@ fhandler_pty_master::close ()
pipe_reply repl; pipe_reply repl;
DWORD len; DWORD len;
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-tty%d-master-ctl", __small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-pty%d-master-ctl",
&installation_key, get_unit ()); &installation_key, get_unit ());
CallNamedPipe (buf, &req, sizeof req, &repl, sizeof repl, &len, 500); CallNamedPipe (buf, &req, sizeof req, &repl, sizeof repl, &len, 500);
CloseHandle (master_ctl); CloseHandle (master_ctl);
@ -1483,7 +1276,7 @@ fhandler_pty_master::close ()
if (!ForceCloseHandle (to_master)) if (!ForceCloseHandle (to_master))
termios_printf ("error closing from_master %p, %E", to_master); termios_printf ("error closing from_master %p, %E", to_master);
} }
fhandler_tty_common::close (); fhandler_pty_common::close ();
if (hExeced || get_ttyp ()->master_pid != myself->pid) if (hExeced || get_ttyp ()->master_pid != myself->pid)
termios_printf ("not clearing: %d, master_pid %d", hExeced, get_ttyp ()->master_pid); termios_printf ("not clearing: %d, master_pid %d", hExeced, get_ttyp ()->master_pid);
@ -1608,42 +1401,27 @@ fhandler_pty_master::ptsname ()
} }
void void
fhandler_tty_common::set_close_on_exec (bool val) fhandler_pty_common::set_close_on_exec (bool val)
{ {
// Cygwin processes will handle this specially on exec. // Cygwin processes will handle this specially on exec.
close_on_exec (val); close_on_exec (val);
} }
void void
fhandler_tty_slave::fixup_after_fork (HANDLE parent) fhandler_pty_slave::fixup_after_fork (HANDLE parent)
{ {
// fork_fixup (parent, inuse, "inuse"); // fork_fixup (parent, inuse, "inuse");
// fhandler_tty_common::fixup_after_fork (parent); // fhandler_pty_common::fixup_after_fork (parent);
report_tty_counts (this, "inherited", ""); report_tty_counts (this, "inherited", "");
} }
void void
fhandler_tty_slave::fixup_after_exec () fhandler_pty_slave::fixup_after_exec ()
{ {
if (!close_on_exec ()) if (!close_on_exec ())
fixup_after_fork (NULL); fixup_after_fork (NULL);
} }
int
fhandler_tty_master::init_console ()
{
console = (fhandler_console *) build_fh_dev (*console_dev, "/dev/ttym_console");
if (console == NULL)
{
termios_printf ("console creation failed?");
return -1;
}
console->init (NULL, GENERIC_READ | GENERIC_WRITE, O_BINARY);
cygheap->manage_console_count ("fhandler_tty_master::init_console", -1, true);
return 0;
}
extern "C" BOOL WINAPI GetNamedPipeClientProcessId (HANDLE, PULONG); extern "C" BOOL WINAPI GetNamedPipeClientProcessId (HANDLE, PULONG);
/* This thread function handles the master control pipe. It waits for a /* This thread function handles the master control pipe. It waits for a
@ -1791,7 +1569,7 @@ pty_master_thread (VOID *arg)
} }
bool bool
fhandler_pty_master::setup (bool ispty) fhandler_pty_master::setup ()
{ {
int res; int res;
security_descriptor sd; security_descriptor sd;
@ -1806,11 +1584,11 @@ fhandler_pty_master::setup (bool ispty)
DWORD pipe_mode = PIPE_NOWAIT; DWORD pipe_mode = PIPE_NOWAIT;
/* Create communication pipes */ /* Create communication pipes */
char pipename[sizeof("ttyNNNN-from-master")]; char pipename[sizeof("ptyNNNN-from-master")];
__small_sprintf (pipename, "tty%d-from-master", get_unit ()); __small_sprintf (pipename, "pty%d-from-master", get_unit ());
res = fhandler_pipe::create_selectable (ispty ? &sec_none : &sec_none_nih, res = fhandler_pipe::create_selectable (&sec_none, from_master,
from_master, get_output_handle (), get_output_handle (), 128 * 1024,
128 * 1024, pipename); pipename);
if (res) if (res)
{ {
errstr = "input pipe"; errstr = "input pipe";
@ -1821,10 +1599,9 @@ fhandler_pty_master::setup (bool ispty)
termios_printf ("can't set output_handle(%p) to non-blocking mode", termios_printf ("can't set output_handle(%p) to non-blocking mode",
get_output_handle ()); get_output_handle ());
__small_sprintf (pipename, "tty%d-to-master", get_unit ()); __small_sprintf (pipename, "pty%d-to-master", get_unit ());
res = fhandler_pipe::create_selectable (ispty ? &sec_none : &sec_none_nih, res = fhandler_pipe::create_selectable (&sec_none, get_io_handle (),
get_io_handle (), to_master, to_master, 128 * 1024, pipename);
128 * 1024, pipename);
if (res) if (res)
{ {
errstr = "output pipe"; errstr = "output pipe";
@ -1841,19 +1618,6 @@ fhandler_pty_master::setup (bool ispty)
sd)) sd))
sa.lpSecurityDescriptor = (PSECURITY_DESCRIPTOR) sd; sa.lpSecurityDescriptor = (PSECURITY_DESCRIPTOR) sd;
/* Create synchronisation events */
if (!ispty)
{
if (!(output_done_event = t.get_event (errstr = OUTPUT_DONE_EVENT, &sa)))
goto err;
if (!(ioctl_done_event = t.get_event (errstr = IOCTL_DONE_EVENT, &sa)))
goto err;
if (!(ioctl_request_event = t.get_event (errstr = IOCTL_REQUEST_EVENT,
&sa)))
goto err;
}
/* Carefully check that the input_available_event didn't already exist. /* Carefully check that the input_available_event didn't already exist.
This is a measure to make sure that the event security descriptor This is a measure to make sure that the event security descriptor
isn't occupied by a malicious process. We must make sure that the isn't occupied by a malicious process. We must make sure that the
@ -1874,7 +1638,7 @@ fhandler_pty_master::setup (bool ispty)
/* Create master control pipe which allows the master to duplicate /* Create master control pipe which allows the master to duplicate
the pty pipe handles to processes which deserve it. */ the pty pipe handles to processes which deserve it. */
__small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-tty%d-master-ctl", __small_sprintf (buf, "\\\\.\\pipe\\cygwin-%S-pty%d-master-ctl",
&installation_key, get_unit ()); &installation_key, get_unit ());
master_ctl = CreateNamedPipe (buf, PIPE_ACCESS_DUPLEX, master_ctl = CreateNamedPipe (buf, PIPE_ACCESS_DUPLEX,
PIPE_WAIT | PIPE_TYPE_MESSAGE PIPE_WAIT | PIPE_TYPE_MESSAGE
@ -1894,8 +1658,6 @@ fhandler_pty_master::setup (bool ispty)
t.from_master = from_master; t.from_master = from_master;
t.to_master = to_master; t.to_master = to_master;
// /* screws up tty master */ ProtectHandle1INH (output_mutex, output_mutex);
// /* screws up tty master */ ProtectHandle1INH (input_mutex, input_mutex);
t.winsize.ws_col = 80; t.winsize.ws_col = 80;
t.winsize.ws_row = 25; t.winsize.ws_row = 25;
t.master_pid = myself->pid; t.master_pid = myself->pid;
@ -1908,9 +1670,6 @@ err:
__seterrno (); __seterrno ();
close_maybe (get_io_handle ()); close_maybe (get_io_handle ());
close_maybe (get_output_handle ()); close_maybe (get_output_handle ());
close_maybe (output_done_event);
close_maybe (ioctl_done_event);
close_maybe (ioctl_request_event);
close_maybe (input_available_event); close_maybe (input_available_event);
close_maybe (output_mutex); close_maybe (output_mutex);
close_maybe (input_mutex); close_maybe (input_mutex);
@ -1925,7 +1684,7 @@ void
fhandler_pty_master::fixup_after_fork (HANDLE parent) fhandler_pty_master::fixup_after_fork (HANDLE parent)
{ {
DWORD wpid = GetCurrentProcessId (); DWORD wpid = GetCurrentProcessId ();
fhandler_tty_master *arch = (fhandler_tty_master *) archetype; fhandler_pty_master *arch = (fhandler_pty_master *) archetype;
if (arch->dwProcessId != wpid) if (arch->dwProcessId != wpid)
{ {
tty& t = *get_ttyp (); tty& t = *get_ttyp ();

4
winsup/cygwin/include/sys/cygwin.h
View File

@ -162,9 +162,7 @@ enum
PID_MYSELF = 0x00200, /* Flag that pid is me. */ PID_MYSELF = 0x00200, /* Flag that pid is me. */
PID_NOCLDSTOP = 0x00400, /* Set if no SIGCHLD signal on stop. */ PID_NOCLDSTOP = 0x00400, /* Set if no SIGCHLD signal on stop. */
PID_INITIALIZING = 0x00800, /* Set until ready to receive signals. */ PID_INITIALIZING = 0x00800, /* Set until ready to receive signals. */
PID_USETTY = 0x01000, /* Setting this enables or disables cygwin's PID_UNUSED1 = 0x01000, /* Available. */
tty support. This is inherited by
all execed or forked processes. */
PID_ALLPIDS = 0x02000, /* used by pinfo scanner */ PID_ALLPIDS = 0x02000, /* used by pinfo scanner */
PID_EXECED = 0x04000, /* redirect to original pid info block */ PID_EXECED = 0x04000, /* redirect to original pid info block */
PID_NOREDIR = 0x08000, /* don't redirect if execed */ PID_NOREDIR = 0x08000, /* don't redirect if execed */

8
winsup/cygwin/select.cc
View File

@ -886,7 +886,7 @@ fhandler_console::select_except (select_stuff *ss)
} }
select_record * select_record *
fhandler_tty_common::select_read (select_stuff *ss) fhandler_pty_common::select_read (select_stuff *ss)
{ {
if (!ss->device_specific_pipe if (!ss->device_specific_pipe
&& (ss->device_specific_pipe = new select_pipe_info) == NULL) && (ss->device_specific_pipe = new select_pipe_info) == NULL)
@ -903,7 +903,7 @@ fhandler_tty_common::select_read (select_stuff *ss)
} }
select_record * select_record *
fhandler_tty_common::select_write (select_stuff *ss) fhandler_pty_common::select_write (select_stuff *ss)
{ {
if (!ss->device_specific_pipe if (!ss->device_specific_pipe
&& (ss->device_specific_pipe = new select_pipe_info) == NULL) && (ss->device_specific_pipe = new select_pipe_info) == NULL)
@ -919,7 +919,7 @@ fhandler_tty_common::select_write (select_stuff *ss)
} }
select_record * select_record *
fhandler_tty_common::select_except (select_stuff *ss) fhandler_pty_common::select_except (select_stuff *ss)
{ {
if (!ss->device_specific_pipe if (!ss->device_specific_pipe
&& (ss->device_specific_pipe = new select_pipe_info) == NULL) && (ss->device_specific_pipe = new select_pipe_info) == NULL)
@ -944,7 +944,7 @@ verify_tty_slave (select_record *me, fd_set *readfds, fd_set *writefds,
} }
select_record * select_record *
fhandler_tty_slave::select_read (select_stuff *ss) fhandler_pty_slave::select_read (select_stuff *ss)
{ {
select_record *s = ss->start.next; select_record *s = ss->start.next;
s->h = input_available_event; s->h = input_available_event;

2
winsup/cygwin/sigproc.cc
View File

@ -231,7 +231,7 @@ proc_subproc (DWORD what, DWORD val)
vchild->sid = myself->sid; vchild->sid = myself->sid;
vchild->ctty = myself->ctty; vchild->ctty = myself->ctty;
vchild->cygstarted = true; vchild->cygstarted = true;
vchild->process_state |= PID_INITIALIZING | (myself->process_state & PID_USETTY); vchild->process_state |= PID_INITIALIZING;
} }
if (what == PROC_DETACHED_CHILD) if (what == PROC_DETACHED_CHILD)
break; break;

180
winsup/cygwin/tty.cc
View File

@ -23,7 +23,7 @@ details. */
#include "pinfo.h" #include "pinfo.h"
#include "shared_info.h" #include "shared_info.h"
extern fhandler_tty_master *tty_master; HANDLE NO_COPY tty_list::mutex = NULL;
extern "C" int extern "C" int
posix_openpt (int oflags) posix_openpt (int oflags)
@ -53,21 +53,18 @@ revoke (char *ttyname)
extern "C" int extern "C" int
ttyslot (void) ttyslot (void)
{ {
if (NOTSTATE (myself, PID_USETTY)) if (myself->ctty <= 0 || iscons_dev (myself->ctty))
return -1; return -1;
return device::minor (myself->ctty); return device::minor (myself->ctty);
} }
HANDLE NO_COPY tty_list::mutex = NULL;
void __stdcall void __stdcall
tty_list::init_session () tty_list::init_session ()
{ {
char mutex_name[MAX_PATH]; 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); 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))) if (!(mutex = CreateMutex (&sec_all_nih, FALSE, name)))
api_fatal ("can't create tty_list::mutex '%s', %E", name); api_fatal ("can't create tty_list::mutex '%s', %E", name);
ProtectHandle (mutex); ProtectHandle (mutex);
@ -78,50 +75,6 @@ tty::init_session ()
{ {
if (!myself->cygstarted && NOTSTATE (myself, PID_CYGPARENT)) if (!myself->cygstarted && NOTSTATE (myself, PID_CYGPARENT))
cygheap->fdtab.get_debugger_info (); 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 int __stdcall
@ -132,56 +85,11 @@ tty_list::attach (int n)
res = -1; res = -1;
else if (n != -1) else if (n != -1)
res = connect (device::minor (n)); res = connect (device::minor (n));
else if (ISSTATE (myself, PID_USETTY))
res = allocate (true);
else else
res = -1; res = -1;
return res; 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 int
tty_list::connect (int ttynum) 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 /* Search for a free tty and allocate it.
the only cygwin process in the current console.
Return tty number or -1 if error. Return tty number or -1 if error.
If with_console == 0, just find a free tty.
*/ */
int int
tty_list::allocate (bool with_console) tty_list::allocate ()
{ {
HWND console;
int freetty = -1;
HANDLE hmaster = NULL;
lock_ttys here; lock_ttys here;
int freetty = -1;
if (!with_console) tty *t = NULL;
console = NULL;
else if (!(console = GetConsoleWindow ()))
{
termios_printf ("Can't find console window");
goto out;
}
/* Is a tty allocated for console? */
for (int i = 0; i < NTTYS; i++) for (int i = 0; i < NTTYS; i++)
{ if (!ttys[i].exists ())
if (!ttys[i].exists ()) {
{ t = ttys + i;
if (freetty < 0) /* Scanning? */ t->init ();
freetty = i; /* Yes. */ t->setsid (-1);
if (!with_console) /* Do we want to attach this to a console? */ freetty = i;
break; /* No. We've got one. */ 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) if (freetty < 0)
system_printf ("No tty allocated"); system_printf ("No tty allocated");
else if (!with_console) else
{ {
termios_printf ("tty%d allocated", freetty); termios_printf ("tty%d allocated", freetty);
here.dont_release (); /* exit with 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)
tty::create_master (freetty);
}
return freetty; return freetty;
} }
@ -358,9 +216,9 @@ tty::init ()
output_stopped = 0; output_stopped = 0;
setsid (0); setsid (0);
pgid = 0; pgid = 0;
hwnd = NULL; was_opened = false;
was_opened = 0;
master_pid = 0; master_pid = 0;
is_console = false;
} }
HANDLE HANDLE

10
winsup/cygwin/tty.h
View File

@ -19,9 +19,6 @@ details. */
/* Input/Output/ioctl events */ /* Input/Output/ioctl events */
#define OUTPUT_DONE_EVENT "cygtty.output.done"
#define IOCTL_REQUEST_EVENT "cygtty.ioctl.request"
#define IOCTL_DONE_EVENT "cygtty.ioctl.done"
#define RESTART_OUTPUT_EVENT "cygtty.output.restart" #define RESTART_OUTPUT_EVENT "cygtty.output.restart"
#define INPUT_AVAILABLE_EVENT "cygtty.input.avail" #define INPUT_AVAILABLE_EVENT "cygtty.input.avail"
#define OUTPUT_MUTEX "cygtty.output.mutex" #define OUTPUT_MUTEX "cygtty.output.mutex"
@ -50,7 +47,7 @@ public:
int output_stopped; int output_stopped;
fh_devices ntty; fh_devices ntty;
DWORD last_ctrl_c; /* tick count of last ctrl-c */ DWORD last_ctrl_c; /* tick count of last ctrl-c */
HWND hwnd; /* Console window handle tty belongs to */ bool is_console;
IMPLEMENT_STATUS_FLAG (bool, initialized) IMPLEMENT_STATUS_FLAG (bool, initialized)
IMPLEMENT_STATUS_FLAG (bool, rstcons) IMPLEMENT_STATUS_FLAG (bool, rstcons)
@ -82,8 +79,6 @@ public:
void setsid (pid_t tsid) {sid = tsid;} void setsid (pid_t tsid) {sid = tsid;}
void kill_pgrp (int); void kill_pgrp (int);
int is_orphaned_process_group (int); int is_orphaned_process_group (int);
HWND gethwnd () const {return hwnd;}
void sethwnd (HWND wnd) {hwnd = wnd;}
const char *ttyname () __attribute ((regparm (1))); const char *ttyname () __attribute ((regparm (1)));
}; };
@ -125,9 +120,8 @@ class tty_list
public: public:
tty * operator [](int n) {return ttys + device::minor (n);} tty * operator [](int n) {return ttys + device::minor (n);}
int allocate (bool); /* true if allocate a tty, pty otherwise */ int allocate (); /* allocate a pty */
int connect (int); int connect (int);
void terminate ();
void init (); void init ();
tty_min *get_cttyp (); tty_min *get_cttyp ();
int __stdcall attach (int n) __attribute__ ((regparm (2))); int __stdcall attach (int n) __attribute__ ((regparm (2)));