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* cygerrno.h (__set_errno): Modify debugging output to make searching strace

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logs easier.  Throughout, change /dev/tty* to /dev/pty*.  Throughout, add flags
argument to fhandler_*::dup methods.
* devices.in: Rename (temporarily?) /dev/ttyN to /dev/ptyN.  Add /dev/ptymN
devices for pty masters.
* devices.cc: Regenerate.
* devices.h (MAX_CONSOLES): Set to max number supported by devices.in.
(fh_devices::FH_PTMX): Rename from FH_PTYM.
(device::operator int): Return by reference.
* dtable.cc (fh_alloc): Take pc as an argument rather than just the device.
This makes debugging easier since more information is available.  Actually
implement handling for already-allocated pty master devices.  Make different
decisions when generating fhandler for not-opened devices.  Add kludge to deal
with opening /dev/tty.
(cnew_no_ctor): New macro.
(build_fh_pc): Make debugging output more verbose.  Use new clone() fhandler
interface to duplicate archetypes.  Reset last term opened.
(dtable::dup_worker): Use Use new clone() fhandler interface to duplicate
archetypes.  Pass flags to child dup handler.
(dtable::dup3): Set O_NOCTTY flag if newfd is not stdin/stdout/stderr.
* fhandler.cc (fhandler_base::reset): Rename from operator =() and reduce
functionality and sense of copy direction.
(fhandler_base::open_with_arch): Use published interface to query io_handle().
Use new copyto() fhandler method to copy from/to found archetype.
* fhandler.h: Throughout, delete size(), add copyout, clone, and fhandler_*
(void *) methods.
(fhandler_base::reset): Rename from operator =().
(fhandler_termios::is_dev_tty): Delete.
(fhandler_termios): change "protected" region to "private".
(fhandler_termios::is_dev_tty): Delete.
(fhandler_termios): Rearrange protected/public.
(fhandler_termios::fhandler_termios): Remember last fhandler_termios "opened".
(fhandler_termios::~fhandler_termios): Forget last fhandler_termios opened.
(ioctl): Rename from ioctl_termios.  Take a void * argument.  Reflect argument
change in pinfo::set_ctty.
(fhandler_console::dup): Declare new function.  Set ctty here if appropriate.
(fhandler_pty_master::from_master): Privatize.
(fhandler_pty_master::to_master): Ditto.
(fhandler_pty_master::dwProcessId): Ditto.
(fhandler_pty_master::fhandler_pty_master): Add an `int' argument.
(fhandler_pty_master::open_setup): Declare new function.
(fhandler_pty_master::~fhandler_pty_master): Declare new method.
(fhandler_nodevice): Remove commented out function declaration.
* fhandler_console.cc: Use get_ttyp() instead of tc() throughout.
(fhandler_console::dup): Define new function to set controlling ctty on dup, as
appropriate.
(fhandler_console::ioctl): Reflect ioctl_termios name change.
(fhandler_console::setup): Rename from get_tty_stuff.
(fhandler_console::open_setup): Reflect argument change in pinfo::set_ctty.
(fhandler_console::fhandler_console): Set _tc here.
* fhandler_termios.cc (handler_termios::ioctl): Rename.  Take a void * arg like
other ioctl functions.
* fhandler_tty.cc (fhandler_pty_slave::dup): Call myself->set_ctty to
potentially reset the controlling terminal.
(fhandler_pty_slave::ioctl): Reflect name/arg change for ioctl_termios.
(fhandler_pty_slave::fhandler_pty_slave): Take a "unit" argument.  Call setup()
here so that we will know the unit number of this fhandler as soon as possible.
Set the unit as appropriate.
(handler_pty_master::open): Move most stuff to constructor and open_setup.
(handler_pty_slave::open_setup): Reflect argument change in pinfo::set_ctty.
(handler_pty_master::open_setup): Define new function.
(fhandler_pty_master::cleanup): Clear handles as a flag that the destructor
does not have to do "close" operations.
(fhandler_pty_master::close): Ditto.
(fhandler_pty_master::~fhandler_pty_master): Define new method.
(fhandler_pty_master::ioctl): Reflect name/arg change for ioctl_termios.
(fhandler_pty_master::setup): Allocate tty here.  Rely on handles being
returned from allocated test rather than opening them here.  Avoid setting
_need_nl here since it is already zeroed in the constructor.  Set up device
information with DEV_TTYM_MAJOR.
* path.h (path_conv &operator =): Take a const argument.
(path_conv::dup): Ditto.
(pathconv_arg::PC_OPEN): New enum.
(pathconv_arg::PC_CTTY): Ditto.
(path_types::PATH_CTTY): Ditto.
(path_types::PATH_OPEN): Ditto.
(path_conv::isopen): New method.
(path_conv::isctty_capable): Ditto.
* path.cc (path_conv::check): Set PATH_OPEN and PATH_CTTY as appropriate.
* pipe.cc (fhandler_pipe::open): Use copyto to copy pipe handle.
* syscall.cc (open): Reinstate fd > 2 check to disallow resetting ctty on
non-std* handles.
* tty.cc (tty_list::allocate): Pass out handles for allocated tty.  use
`not_allocated' to find unallocated ttys.  Avoid keeping the lock since the
allocation of the tty should be sufficient to prevent multiple access.
(tty::not_allocated): Clarify comment.  Rename.  Return handles when an unused
tty is found.  Simply test for existing tty.
(tty::exists): Rewrite to use `not_allocated'.
* tty.h (NTTYS): Reset down to actual number supported by devices.in.
(tty::not_allocated): Declare new function.
(tty_list::allocate): Pass out read/write tty handles.  Zero them when not
found.
* fhandler_proc.cc: Reflect name change from FH_PTYM -> FH_PTMX.
* pinfo.h (pinfo::set_ctty): Reduce/reorder arguments passed in.
* pinfo.cc (pinfo::set_ctty): Ditto.  Just use tc() built into the passed-in
fhandler_termios pointer.  Return true if ctty is assigned.
* syscalls.cc (open): Call build_fh_pc with PC_OPEN flag.  Set PC_CTTY if
appropriate.
(stat_worker): Remove is_dev_tty () stuff.
This commit is contained in:
Christopher Faylor
2011-10-15 22:37:30 +00:00
parent a9cc13a8e0
commit 23771fa1f7
31 changed files with 10454 additions and 7870 deletions
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40
winsup/cygwin/fhandler_console.cc
View File

@ -164,7 +164,7 @@ fhandler_console::set_unit ()
/* Allocate and initialize the shared record for the current console. */
void
fhandler_console::get_tty_stuff ()
fhandler_console::setup ()
{
if (set_unit ())
{
@ -268,7 +268,7 @@ fhandler_console::send_winch_maybe ()
{
dev_state.scroll_region.Top = 0;
dev_state.scroll_region.Bottom = -1;
tc ()->kill_pgrp (SIGWINCH);
get_ttyp ()->kill_pgrp (SIGWINCH);
}
}
@ -336,7 +336,7 @@ fhandler_console::read (void *pv, size_t& buflen)
DWORD timeout = is_nonblocking () ? 0 : INFINITE;
char tmp[60];
termios ti = tc ()->ti;
termios ti = get_ttyp ()->ti;
for (;;)
{
int bgres;
@ -684,8 +684,8 @@ sig_exit:
void
fhandler_console::set_input_state ()
{
if (tc ()->rstcons ())
input_tcsetattr (0, &tc ()->ti);
if (get_ttyp ()->rstcons ())
input_tcsetattr (0, &get_ttyp ()->ti);
}
bool
@ -759,6 +759,13 @@ fhandler_console::scroll_screen (int x1, int y1, int x2, int y2, int xn, int yn)
clear_screen (0, sr1.Top, sr2.Right, dest.Y - 1);
}
int
fhandler_console::dup (fhandler_base *child, int flags)
{
myself->set_ctty (this, flags);
return 0;
}
int
fhandler_console::open (int flags, mode_t)
{
@ -806,7 +813,7 @@ fhandler_console::open (int flags, mode_t)
dev_state.set_default_attr ();
}
tc ()->rstcons (false);
get_ttyp ()->rstcons (false);
set_open_status ();
DWORD cflags;
@ -825,7 +832,7 @@ fhandler_console::open_setup (int flags)
{
cygheap->manage_console_count ("fhandler_console::open", 1);
set_flags ((flags & ~O_TEXT) | O_BINARY);
myself->set_ctty (&shared_console_info->tty_min_state, flags, this);
myself->set_ctty (this, flags);
}
int
@ -841,7 +848,7 @@ fhandler_console::close ()
int
fhandler_console::ioctl (unsigned int cmd, void *arg)
{
int res = ioctl_termios (cmd, (int) arg);
int res = fhandler_termios::ioctl (cmd, arg);
if (res <= 0)
return res;
switch (cmd)
@ -970,8 +977,8 @@ fhandler_console::input_tcsetattr (int, struct termios const *t)
available. We've got ECHO and ICANON, they've
got ENABLE_ECHO_INPUT and ENABLE_LINE_INPUT. */
termios_printf ("this %p, tc () %p, t %p", this, tc (), t);
tc ()->ti = *t;
termios_printf ("this %p, get_ttyp () %p, t %p", this, get_ttyp (), t);
get_ttyp ()->ti = *t;
if (t->c_lflag & ECHO)
{
@ -1010,7 +1017,7 @@ fhandler_console::input_tcsetattr (int, struct termios const *t)
res, t, flags, t->c_lflag, t->c_iflag);
}
tc ()->rstcons (false);
get_ttyp ()->rstcons (false);
return res;
}
@ -1027,7 +1034,7 @@ int
fhandler_console::tcgetattr (struct termios *t)
{
int res;
*t = tc ()->ti;
*t = get_ttyp ()->ti;
t->c_cflag |= CS8;
@ -1067,8 +1074,9 @@ fhandler_console::fhandler_console (fh_devices unit) :
{
if (unit > 0)
dev ().parse (unit);
get_tty_stuff ();
setup ();
trunc_buf.len = 0;
_tc = &(shared_console_info->tty_min_state);
}
void
@ -1866,7 +1874,7 @@ do_print:
y--;
}
}
cursor_set (false, ((tc ()->ti.c_oflag & ONLCR) ? 0 : x), y + 1);
cursor_set (false, ((get_ttyp ()->ti.c_oflag & ONLCR) ? 0 : x), y + 1);
break;
case BAK:
cursor_rel (-1, 0);
@ -2192,13 +2200,13 @@ fhandler_console::init (HANDLE h, DWORD a, mode_t bin)
if (h && h != INVALID_HANDLE_VALUE)
CloseHandle (h); /* Reopened by open */
return !tcsetattr (0, &tc ()->ti);
return !tcsetattr (0, &get_ttyp ()->ti);
}
int
fhandler_console::igncr_enabled ()
{
return tc ()->ti.c_iflag & IGNCR;
return get_ttyp ()->ti.c_iflag & IGNCR;
}
void