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* fhandler.cc (fhandler_base_overlapped::wait_overlapped): Only raise SIGPIPE 

when writing.
* fhandler.h: Include "tty.h".
(fhandler_termios::_tc): Rename from tc.
(fhandler_termios::tc): New method.
(fhandler_termios::tcinit): Remove an argument.
(fhandler_termios::get_ttyp): Use method to retrieve value.
(fhandler_console::console_state): Move here.
(fhandler_console::dev_state): Delete.
(fhandler_console::shared_console_info): Define.
(fhandler_console::open_shared_console): Move this function under
fhandler_console umbrella.
(fhandler_console::tc): Define.  Return static value.
(fhandler_console::focus_aware): Accommodate deletion of dev_state.
(fhandler_console): Add tty_list::get_cttyp as a friend.
* fhandler_console.cc (dev_state): Redefine as a pointer within
shared_console_info and change dev-> to dev.  throughout.
(fhandler_console::shared_console_info): Move into fhandler_console.
(fhandler_console::open_shared_console): Move into fhandler_console change
argument to simple bool.
(enum_windows): Accommodate changes to console_state and open_shared_console.
(console_unit::console_unit): Ditto.
(fhandler_console::get_tty_stuff): Accommodate change to dev_state.
(tty_list::get_cttyp): Accommodate change to
handler_console::shared_console_info.
(fhandler_console::read): Accommodate change from tc to tc ().
(fhandler_console::set_input_state): Ditto.
(fhandler_console::open): Accommodate tcinit argument change and change from tc
to tc().
(fhandler_console::input_tcsetattr): Accomodate change from tc to tc().
(fhandler_console::input_tcsetattr): Ditto.
(fhandler_console::write_normal): Ditto.
(fhandler_console::init): Ditto.
(fhandler_console::igncr_enabled): Ditto.
* fhandler_termios.cc (fhandler_termios::tcinit): Remove first argument.
Expect tc() to have been set up first.  Use tc() rather than tc.
(fhandler_termios::tcsetpgrp): Accomodate change from tc to tc().
(fhandler_termios::tcgetpgrp): Ditto.
(fhandler_termios::bg_check): Ditto.
(fhandler_termios::line_edit: Ditto.
(fhandler_tty_master::set_winsize): Ditto.
(fhandler_tty_slave::open): Ditto.
(fhandler_tty_slave::init): Ditto.
(fhandler_pty_master::write): Ditto.
(fhandler_pty_master::setup): Ditto.  Accommodate change in arguments to
tcinit.
(fhandler_tty_slave::fch_open_handles): Set _tc directly.
(tty_min::is_orphaned_process_group): Don't assume that parent pid exists.
* pinfo.cc (_pinfo::set_ctty): Reset myself->{pgid,sid} here if we were started
by a non-Cygwin process but the tty exists.
* shared_info.h (console_state): Delete from here.
* tty.h: Make multiple inclusion safe.
This commit is contained in:
Christopher Faylor 2011-06-04 00:12:29 +00:00
parent 0e36228bfb
commit 32bf308231
9 changed files with 490 additions and 406 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,61 @@
2011-06-03 Christopher Faylor <me.cygwin2011@cgf.cx>
* fhandler.cc (fhandler_base_overlapped::wait_overlapped): Only raise
SIGPIPE when writing.
* fhandler.h: Include "tty.h".
(fhandler_termios::_tc): Rename from tc.
(fhandler_termios::tc): New method.
(fhandler_termios::tcinit): Remove an argument.
(fhandler_termios::get_ttyp): Use method to retrieve value.
(fhandler_console::console_state): Move here.
(fhandler_console::dev_state): Delete.
(fhandler_console::shared_console_info): Define.
(fhandler_console::open_shared_console): Move this function under
fhandler_console umbrella.
(fhandler_console::tc): Define. Return static value.
(fhandler_console::focus_aware): Accommodate deletion of dev_state.
(fhandler_console): Add tty_list::get_cttyp as a friend.
* fhandler_console.cc (dev_state): Redefine as a pointer within
shared_console_info and change dev-> to dev. throughout.
(fhandler_console::shared_console_info): Move into fhandler_console.
(fhandler_console::open_shared_console): Move into fhandler_console
change argument to simple bool.
(enum_windows): Accommodate changes to console_state and
open_shared_console.
(console_unit::console_unit): Ditto.
(fhandler_console::get_tty_stuff): Accommodate change to dev_state.
(tty_list::get_cttyp): Accommodate change to
handler_console::shared_console_info.
(fhandler_console::read): Accommodate change from tc to tc ().
(fhandler_console::set_input_state): Ditto.
(fhandler_console::open): Accommodate tcinit argument change and change
from tc to tc().
(fhandler_console::input_tcsetattr): Accomodate change from tc to tc().
(fhandler_console::input_tcsetattr): Ditto.
(fhandler_console::write_normal): Ditto.
(fhandler_console::init): Ditto.
(fhandler_console::igncr_enabled): Ditto.
* fhandler_termios.cc (fhandler_termios::tcinit): Remove first argument.
Expect tc() to have been set up first. Use tc() rather than tc.
(fhandler_termios::tcsetpgrp): Accomodate change from tc to tc().
(fhandler_termios::tcgetpgrp): Ditto.
(fhandler_termios::bg_check): Ditto.
(fhandler_termios::line_edit: Ditto.
(fhandler_tty_master::set_winsize): Ditto.
(fhandler_tty_slave::open): Ditto.
(fhandler_tty_slave::init): Ditto.
(fhandler_pty_master::write): Ditto.
(fhandler_pty_master::setup): Ditto. Accommodate change in arguments
to tcinit.
(fhandler_tty_slave::fch_open_handles): Set _tc directly.
(tty_min::is_orphaned_process_group): Don't assume that parent pid
exists.
* pinfo.cc (_pinfo::set_ctty): Reset myself->{pgid,sid} here if we were
started by a non-Cygwin process but the tty exists.
* shared_info.h (console_state): Delete from here.
* tty.h: Make multiple inclusion safe.
2011-05-31 Christopher Faylor <me.cygwin2011@cgf.cx>
* exceptions.cc (ctrl_c_handler): Simplify test for no parent tty.

4
winsup/cygwin/fhandler.cc
View File

@ -1883,13 +1883,15 @@ fhandler_base_overlapped::wait_overlapped (bool inres, bool writing, DWORD *byte
debug_printf ("EOF");
*bytes = 0;
res = overlapped_success;
if (writing && err == ERROR_BROKEN_PIPE)
raise (SIGPIPE);
}
else
{
debug_printf ("res %u, err %u", (unsigned) res, err);
*bytes = (DWORD) -1;
__seterrno_from_win_error (err);
if (writing && (err == ERROR_NO_DATA || err == ERROR_BROKEN_PIPE))
if (writing && err == ERROR_NO_DATA)
raise (SIGPIPE);
}

28
winsup/cygwin/fhandler.h
View File

@ -12,6 +12,7 @@ details. */
#ifndef _FHANDLER_H_
#define _FHANDLER_H_
#include "tty.h"
/* fcntl flags used only internaly. */
#define O_NOSYMLINK 0x080000
#define O_DIROPEN 0x100000
@ -925,7 +926,8 @@ class fhandler_termios: public fhandler_base
virtual void doecho (const void *, DWORD) {};
virtual int accept_input () {return 1;};
public:
tty_min *tc;
tty_min *_tc;
virtual tty_min *tc () const {return _tc; }
fhandler_termios () :
fhandler_base ()
{
@ -934,9 +936,9 @@ class fhandler_termios: public fhandler_base
HANDLE& get_output_handle () { return output_handle; }
line_edit_status line_edit (const char *rptr, int nread, termios&);
void set_output_handle (HANDLE h) { output_handle = h; }
void tcinit (tty_min *this_tc, bool force);
void tcinit (bool force);
bool is_tty () const { return true; }
tty *get_ttyp () { return (tty *) tc; }
tty *get_ttyp () { return (tty *) tc (); }
void sigflush ();
int tcgetpgrp ();
int tcsetpgrp (int pid);
@ -1041,9 +1043,15 @@ class dev_console
/* This is a input and output console handle */
class fhandler_console: public fhandler_termios
{
private:
public:
struct console_state
{
tty_min tty_min_state;
dev_console dev_state;
};
private:
static const unsigned MAX_WRITE_CHARS;
static dev_console *dev_state;
static console_state *shared_console_info;
static bool invisible_console;
/* Used when we encounter a truncated multi-byte sequence. The
@ -1075,9 +1083,16 @@ class fhandler_console: public fhandler_termios
void set_cursor_maybe ();
static bool create_invisible_console (HWINSTA);
static bool create_invisible_console_workaround ();
static console_state *open_shared_console (HWND, HANDLE&, bool&);
tty_min *tc () const {return &(shared_console_info->tty_min_state);}
public:
fhandler_console ();
static console_state *open_shared_console (HWND hw, HANDLE& h)
{
bool createit = false;
return open_shared_console (hw, h, createit);
}
fhandler_console* is_console () { return this; }
@ -1098,7 +1113,7 @@ class fhandler_console: public fhandler_termios
int ioctl (unsigned int cmd, void *);
int init (HANDLE, DWORD, mode_t);
bool mouse_aware (MOUSE_EVENT_RECORD& mouse_event);
bool focus_aware () {return dev_state->use_focus;}
bool focus_aware () {return shared_console_info->dev_state.use_focus;}
select_record *select_read (select_stuff *);
select_record *select_write (select_stuff *);
@ -1114,6 +1129,7 @@ class fhandler_console: public fhandler_termios
static bool need_invisible ();
static bool has_a () {return !invisible_console;}
size_t size () const { return sizeof (*this);}
friend tty_min * tty_list::get_cttyp ();
};
class fhandler_tty_common: public fhandler_termios

632
winsup/cygwin/fhandler_console.cc
View File

File diff suppressed because it is too large Load Diff

140
winsup/cygwin/fhandler_termios.cc
View File

@ -24,49 +24,47 @@ details. */
/* Common functions shared by tty/console */
void
fhandler_termios::tcinit (tty_min *this_tc, bool is_pty_master)
fhandler_termios::tcinit (bool is_pty_master)
{
/* Initial termios values */
tc = this_tc;
if (is_pty_master || !tc->initialized ())
if (is_pty_master || !tc ()->initialized ())
{
tc->ti.c_iflag = BRKINT | ICRNL | IXON;
tc->ti.c_oflag = OPOST | ONLCR;
tc->ti.c_cflag = B38400 | CS8 | CREAD;
tc->ti.c_lflag = ISIG | ICANON | ECHO | IEXTEN;
tc ()->ti.c_iflag = BRKINT | ICRNL | IXON;
tc ()->ti.c_oflag = OPOST | ONLCR;
tc ()->ti.c_cflag = B38400 | CS8 | CREAD;
tc ()->ti.c_lflag = ISIG | ICANON | ECHO | IEXTEN;
tc->ti.c_cc[VDISCARD] = CFLUSH;
tc->ti.c_cc[VEOL] = CEOL;
tc->ti.c_cc[VEOL2] = CEOL2;
tc->ti.c_cc[VEOF] = CEOF;
tc->ti.c_cc[VERASE] = CERASE;
tc->ti.c_cc[VINTR] = CINTR;
tc->ti.c_cc[VKILL] = CKILL;
tc->ti.c_cc[VLNEXT] = CLNEXT;
tc->ti.c_cc[VMIN] = 1;
tc->ti.c_cc[VQUIT] = CQUIT;
tc->ti.c_cc[VREPRINT] = CRPRNT;
tc->ti.c_cc[VSTART] = CSTART;
tc->ti.c_cc[VSTOP] = CSTOP;
tc->ti.c_cc[VSUSP] = CSUSP;
tc->ti.c_cc[VSWTC] = CSWTCH;
tc->ti.c_cc[VTIME] = 0;
tc->ti.c_cc[VWERASE] = CWERASE;
tc ()->ti.c_cc[VDISCARD] = CFLUSH;
tc ()->ti.c_cc[VEOL] = CEOL;
tc ()->ti.c_cc[VEOL2] = CEOL2;
tc ()->ti.c_cc[VEOF] = CEOF;
tc ()->ti.c_cc[VERASE] = CERASE;
tc ()->ti.c_cc[VINTR] = CINTR;
tc ()->ti.c_cc[VKILL] = CKILL;
tc ()->ti.c_cc[VLNEXT] = CLNEXT;
tc ()->ti.c_cc[VMIN] = 1;
tc ()->ti.c_cc[VQUIT] = CQUIT;
tc ()->ti.c_cc[VREPRINT] = CRPRNT;
tc ()->ti.c_cc[VSTART] = CSTART;
tc ()->ti.c_cc[VSTOP] = CSTOP;
tc ()->ti.c_cc[VSUSP] = CSUSP;
tc ()->ti.c_cc[VSWTC] = CSWTCH;
tc ()->ti.c_cc[VTIME] = 0;
tc ()->ti.c_cc[VWERASE] = CWERASE;
tc->ti.c_ispeed = tc->ti.c_ospeed = B38400;
tc->pgid = is_pty_master ? 0 : myself->pgid;
tc->initialized (true);
tc ()->ti.c_ispeed = tc ()->ti.c_ospeed = B38400;
tc ()->pgid = is_pty_master ? 0 : myself->pgid;
tc ()->initialized (true);
}
}
int
fhandler_termios::tcsetpgrp (const pid_t pgid)
{
termios_printf ("tty %d pgid %d, sid %d, tsid %d", tc->ntty, pgid,
myself->sid, tc->getsid ());
if (myself->sid != tc->getsid ())
termios_printf ("tty %d pgid %d, sid %d, tsid %d", tc ()->ntty, pgid,
myself->sid, tc ()->getsid ());
if (myself->sid != tc ()->getsid ())
{
set_errno (EPERM);
return -1;
@ -79,8 +77,8 @@ fhandler_termios::tcsetpgrp (const pid_t pgid)
switch (res)
{
case bg_ok:
tc->setpgid (pgid);
init_console_handler (tc->gethwnd ());
tc ()->setpgid (pgid);
init_console_handler (tc ()->gethwnd ());
res = 0;
break;
case bg_signalled:
@ -100,8 +98,8 @@ fhandler_termios::tcsetpgrp (const pid_t pgid)
int
fhandler_termios::tcgetpgrp ()
{
if (myself->ctty != -1 && myself->ctty == tc->ntty)
return tc->pgid;
if (myself->ctty != -1 && myself->ctty == tc ()->ntty)
return tc ()->pgid;
set_errno (ENOTTY);
return -1;
}
@ -109,27 +107,7 @@ fhandler_termios::tcgetpgrp ()
int
fhandler_pty_master::tcgetpgrp ()
{
return tc->pgid;
}
int
tty_min::is_orphaned_process_group (int pgid)
{
/* An orphaned process group is a process group in which the parent
of every member is either itself a member of the group or is not
a member of the group's session. */
winpids pids ((DWORD) PID_MAP_RW);
for (unsigned i = 0; i < pids.npids; i++)
{
_pinfo *p = pids[i];
if (!p->exists () || p->pgid != pgid)
continue;
pinfo ppid (p->ppid);
if (ppid->pgid != pgid &&
ppid->sid == myself->sid)
return 0;
}
return 1;
return tc ()->pgid;
}
void
@ -154,21 +132,45 @@ tty_min::kill_pgrp (int sig)
sig_send (myself, si);
}
int
tty_min::is_orphaned_process_group (int pgid)
{
/* An orphaned process group is a process group in which the parent
of every member is either itself a member of the group or is not
a member of the group's session. */
termios_printf ("checking pgid %d, my sid %d, my parent %d", pgid, myself->sid, myself->ppid);
winpids pids ((DWORD) 0);
for (unsigned i = 0; i < pids.npids; i++)
{
_pinfo *p = pids[i];
termios_printf ("checking pid %d - has pgid %d\n", p->pid, p->pgid);
if (!p || !p->exists () || p->pgid != pgid)
continue;
pinfo ppid (p->ppid);
if (!ppid)
continue;
termios_printf ("ppid->pgid %d, ppid->sid %d", ppid->pgid, ppid->sid);
if (ppid->pgid != pgid && ppid->sid == myself->sid)
return 0;
}
return 1;
}
bg_check_types
fhandler_termios::bg_check (int sig)
{
if (!myself->pgid || tc->getpgid () == myself->pgid ||
myself->ctty != tc->ntty ||
((sig == SIGTTOU) && !(tc->ti.c_lflag & TOSTOP)))
if (!myself->pgid || tc ()->getpgid () == myself->pgid ||
myself->ctty != tc ()->ntty ||
((sig == SIGTTOU) && !(tc ()->ti.c_lflag & TOSTOP)))
return bg_ok;
if (sig < 0)
sig = -sig;
termios_printf ("bg I/O pgid %d, tpgid %d, %s, ntty %s", myself->pgid, tc->getpgid (),
myctty (), tc->ttyname ());
termios_printf ("bg I/O pgid %d, tpgid %d, %s, ntty %s", myself->pgid, tc ()->getpgid (),
myctty (), tc ()->ttyname ());
if (tc->getsid () == 0)
if (tc ()->getsid () == 0)
{
/* The pty has been closed by the master. Return an EOF
indication. FIXME: There is nothing to stop somebody
@ -188,7 +190,7 @@ fhandler_termios::bg_check (int sig)
process is orphaned, in which case we return EIO). */
if (sigs_ignored)
return bg_ok; /* Just allow the IO */
else if ( tc->is_orphaned_process_group (myself->pgid) )
else if (tc ()->is_orphaned_process_group (myself->pgid))
{
termios_printf ("process group is orphaned");
set_errno (EIO); /* This is an IO error */
@ -214,7 +216,7 @@ fhandler_termios::bg_check (int sig)
inline void
fhandler_termios::echo_erase (int force)
{
if (force || tc->ti.c_lflag & ECHO)
if (force || tc ()->ti.c_lflag & ECHO)
doecho ("\b \b", 3);
}
@ -269,7 +271,7 @@ fhandler_termios::line_edit (const char *rptr, int nread, termios& ti)
termios_printf ("got interrupt %d, sending signal %d", c, sig);
eat_readahead (-1);
tc->kill_pgrp (sig);
tc ()->kill_pgrp (sig);
ti.c_lflag &= ~FLUSHO;
sawsig = true;
goto restart_output;
@ -279,9 +281,9 @@ fhandler_termios::line_edit (const char *rptr, int nread, termios& ti)
{
if (CCEQ (ti.c_cc[VSTOP], c))
{
if (!tc->output_stopped)
if (!tc ()->output_stopped)
{
tc->output_stopped = 1;
tc ()->output_stopped = 1;
acquire_output_mutex (INFINITE);
}
continue;
@ -289,11 +291,11 @@ fhandler_termios::line_edit (const char *rptr, int nread, termios& ti)
else if (CCEQ (ti.c_cc[VSTART], c))
{
restart_output:
tc->output_stopped = 0;
tc ()->output_stopped = 0;
release_output_mutex ();
continue;
}
else if ((ti.c_iflag & IXANY) && tc->output_stopped)
else if ((ti.c_iflag & IXANY) && tc ()->output_stopped)
goto restart_output;
}
if (iscanon && ti.c_lflag & IEXTEN && CCEQ (ti.c_cc[VDISCARD], c))

17
winsup/cygwin/fhandler_tty.cc
View File

@ -68,7 +68,7 @@ fhandler_tty_master::set_winsize (bool sendSIGWINCH)
console->ioctl (TIOCGWINSZ, &w);
get_ttyp ()->winsize = w;
if (sendSIGWINCH)
tc->kill_pgrp (SIGWINCH);
tc ()->kill_pgrp (SIGWINCH);
}
int
@ -493,7 +493,9 @@ fhandler_tty_slave::open (int flags, mode_t)
for (HANDLE **h = handles; *h; h++)
**h = NULL;
tcinit (cygwin_shared->tty[get_unit ()], false);
_tc = cygwin_shared->tty[get_unit ()];
tcinit (false);
cygwin_shared->tty.attach (get_unit ());
@ -716,7 +718,7 @@ fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t)
tty process group leader.
TODO: Investigate how SIGTTIN should be handled with pure-windows
programs. */
pinfo p (tc->getpgid ());
pinfo p (tc ()->getpgid ());
/* We should only grab this when the process group owner for this
tty is a non-cygwin process or we've been started directly
from a non-Cygwin process with no Cygwin ancestry. */
@ -724,7 +726,7 @@ fhandler_tty_slave::init (HANDLE h, DWORD a, mode_t)
{
termios_printf ("Setting process group leader to %d since %W(%d) is not a cygwin process",
myself->pgid, p->progname, p->pid);
tc->setpgid (myself->pgid);
tc ()->setpgid (myself->pgid);
}
}
@ -1248,7 +1250,7 @@ fhandler_tty_slave::fch_open_handles ()
{
char buf[MAX_PATH];
tc = cygwin_shared->tty[get_unit ()];
_tc = cygwin_shared->tty[get_unit ()];
shared_name (buf, INPUT_AVAILABLE_EVENT, get_unit ());
input_available_event = OpenEvent (READ_CONTROL | WRITE_DAC | WRITE_OWNER,
TRUE, buf);
@ -1496,7 +1498,7 @@ fhandler_pty_master::write (const void *ptr, size_t len)
{
int i;
char *p = (char *) ptr;
termios ti = tc->ti;
termios ti = tc ()->ti;
bg_check_types bg = bg_check (SIGTTOU);
if (bg <= bg_eof)
@ -1796,8 +1798,9 @@ fhandler_pty_master::setup (bool ispty)
SECURITY_ATTRIBUTES sa = { sizeof (SECURITY_ATTRIBUTES), NULL, TRUE };
tty& t = *cygwin_shared->tty[get_unit ()];
_tc = (tty_min *)&t;
tcinit (&t, true); /* Set termios information. Force initialization. */
tcinit (true); /* Set termios information. Force initialization. */
const char *errstr = NULL;
DWORD pipe_mode = PIPE_NOWAIT;

6
winsup/cygwin/pinfo.cc
View File

@ -403,6 +403,12 @@ _pinfo::set_ctty (tty_min *tc, int flags, fhandler_termios *fh)
lock_ttys here;
syscall_printf ("attaching %s sid %d, pid %d, pgid %d, tty->pgid %d, tty->sid %d",
__ctty (), sid, pid, pgid, tc->getpgid (), tc->getsid ());
if (!cygwin_finished_initializing && !myself->cygstarted
&& myself->pgid == myself->pid)
{
myself->pgid = tc->getpgid ();
myself->sid = tc->getsid ();
}
pinfo p (tc->getsid ());
if (sid == pid && (!p || p->pid == pid || !p->exists ()))

8
winsup/cygwin/shared_info.h
View File

@ -79,14 +79,6 @@ void __stdcall shared_destroy ();
(((DWORD) ((p) + 1) + system_info.dwAllocationGranularity - 1) / \
system_info.dwAllocationGranularity)))
#ifdef _FHANDLER_H_
struct console_state
{
tty_min tty_min_state;
dev_console dev_state;
};
#endif
HANDLE get_shared_parent_dir ();
HANDLE get_session_parent_dir ();
char *__stdcall shared_name (char *, const char *, int);

3
winsup/cygwin/tty.h
View File

@ -8,6 +8,8 @@ This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _TTY_H
#define _TTY_H
/* tty tables */
#define INP_BUFFER_SIZE 256
@ -148,3 +150,4 @@ public:
};
extern "C" int ttyslot (void);
#endif /*_TTY_H*/