* Already set tty::lock() in init_driver(). This makes it always safe to
be used.
* Added tty::ref_count. Each cookie keeps a reference. Only when a
cookie is freed the reference is surrendered. A tty is considered used
as long as it is still referenced. This allows to access a tty through
the cookie, even if it already has been closed.
* Fixed tty_deselect(). It was keeping registered select events when
called after the cookie has been closed. The referenced select_sync
structure would become invalid and later attempts to send select
notifications for the tty could crash. Fixes #3126.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28651 a95241bf-73f2-0310-859d-f6bbb57e9c96

- dump termios struct for ttys
- implement VMIN & VTIME, at least it seems to work but it's 4am and it's overly weird, so please review.
See http://man.cx/termios and http://www.unixwiz.net/techtips/termios-vmin-vtime.html .


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25408 a95241bf-73f2-0310-859d-f6bbb57e9c96

- dump winsize info too.
- prepare for VTIME and VMIN handling: allow waiting with timeout.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25405 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Set reasonable terminal flag defaults. This makes telnetd fully usable
again.
* Publish /dev/ptmx. Opening it will open a fresh pty master. In
principle /dev/pt/ is obsolete now, but I guess we keep it around for
compatibility with BeOS. Though there shouldn't be many applications
opening a pty, that we might be interested in...
* New ioctls B_IOCTL_GET_TTY_INDEX (returns the tty index) and
B_IOCTL_GRANT_TTY (grants tty slave access rights).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25133 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Detemplatized ConditionVariable{Entry}. Merged them with their
respective Private* base class.
* Changed sigwait() and sigsuspend() to use thread_block() instead of a
condition variable.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25100 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added debugger command "tty", which dumps some info about a tty.
* RequestOwner was removing the wrong request from the second queue,
which could cause the list structure to become invalid and result in
bug #1526.
* In the writer loops we do now call tty_notify_if_available() when
we're potentially going to wait and had written something before, so
that a waiting reader will be woken up also when we write more bytes
than fit into the ring buffer.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22421 a95241bf-73f2-0310-859d-f6bbb57e9c96

Moved the select_sync_pool from tty_cookie to tty. No need to have one
per cookie.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22392 a95241bf-73f2-0310-859d-f6bbb57e9c96

* When canonical input processing is enabled reads should only return
anything, if a line is available. Fixes bug #1483.
* Replaced the request owner waiting semaphore by a condition variable
and removed the now no longer needed SemaphorePool.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22357 a95241bf-73f2-0310-859d-f6bbb57e9c96

* We store the ID of the controlling terminal and the foreground process
group ID with the session and let the terminal update them.
* Added an "orphaned" flag to the process_group structure and code to
maintain it.
* Handle the death of a controlling process correctly: The
foreground process group gets a SIGHUP and all newly-orphaned process
groups containing at least one stopped processes are sent
SIGHUP+SIGCONT.
* The tty handles the O_NOCTTY flag correctly, now.
* The tty handles reads/writes from processes from other sessions
correctly, now.
* Handle tcsetpgrp() from background processes correctly.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22187 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved members pgrp_id, termios, window_size from the tty structure to
the new structure tty_settings of which there's only one instance per
master/slave tty pair. Previously the existence of two instances of those
members caused several kinds of problems, e.g. the Terminal setting
the window size on the master and CLI programs readings the unchanged
values from the slave. E.g. less correctly adjusts the display when the
Terminal size changes, now.
* Reorganized writing to a TTY. We do no longer handle writes to master
and slave the same way. Writes to the master are "input" and need to
be processed differently from writes to the slave ("output"). Before,
both were processed first as output then as input, which caused incorrect
behavior. E.g. CRs were not echoed correctly.
* Added canonical ERASE (backspace) and KILL (clear line) processing.
Couldn't really see it work. glibc's fgets() seems to read single
chars, so that we never have anything in the line buffer.
* Added handling for EOF. Works well with Be's Terminal, ours seems to
write an ESC sequence instead of the EOF char (Ctrl-D), though.
* Extended output processing support (ECHOE, ECHOK, ECHONL, OCRNL,
ONLRET, OLCUC).
* Writes use user_memcpy() now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21735 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Changed type of "bytesNeeded" to size_t whereever it's used.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17491 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Dealt with (hopefully) all open/close race conditions.
* Implemented unblocking of pending operations when closing a cookie.
Needed to change the simple one reader semaphore, one writer
semaphore strategy for blocking to a request queue based approach
(otherwise unblocking would have been really hairy).
* Implemented select() support.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11931 a95241bf-73f2-0310-859d-f6bbb57e9c96

Work in progress. Basic data exchange seems to work.
Only slightly tested (moved data to and from pty <-> tty).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9087 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added the beginnings of our TTY layer.
After having had a look at our own Terminal code (former MuTerm), I even
copied the original mess in /dev/tt/ and /dev/pt/.
The /dev/tt/ entries could be created and removed on demand, though, but
that can't be done yet.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9041 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Already set tty::lock() in init_driver(). This makes it always safe to
be used.
* Added tty::ref_count. Each cookie keeps a reference. Only when a
cookie is freed the reference is surrendered. A tty is considered used
as long as it is still referenced. This allows to access a tty through
the cookie, even if it already has been closed.
* Fixed tty_deselect(). It was keeping registered select events when
called after the cookie has been closed. The referenced select_sync
structure would become invalid and later attempts to send select
notifications for the tty could crash. Fixes #3126.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28651 a95241bf-73f2-0310-859d-f6bbb57e9c96

- dump termios struct for ttys
- implement VMIN & VTIME, at least it seems to work but it's 4am and it's overly weird, so please review.
See http://man.cx/termios and http://www.unixwiz.net/techtips/termios-vmin-vtime.html .


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25408 a95241bf-73f2-0310-859d-f6bbb57e9c96

- dump winsize info too.
- prepare for VTIME and VMIN handling: allow waiting with timeout.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25405 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Set reasonable terminal flag defaults. This makes telnetd fully usable
again.
* Publish /dev/ptmx. Opening it will open a fresh pty master. In
principle /dev/pt/ is obsolete now, but I guess we keep it around for
compatibility with BeOS. Though there shouldn't be many applications
opening a pty, that we might be interested in...
* New ioctls B_IOCTL_GET_TTY_INDEX (returns the tty index) and
B_IOCTL_GRANT_TTY (grants tty slave access rights).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25133 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Detemplatized ConditionVariable{Entry}. Merged them with their
respective Private* base class.
* Changed sigwait() and sigsuspend() to use thread_block() instead of a
condition variable.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25100 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added debugger command "tty", which dumps some info about a tty.
* RequestOwner was removing the wrong request from the second queue,
which could cause the list structure to become invalid and result in
bug #1526.
* In the writer loops we do now call tty_notify_if_available() when
we're potentially going to wait and had written something before, so
that a waiting reader will be woken up also when we write more bytes
than fit into the ring buffer.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22421 a95241bf-73f2-0310-859d-f6bbb57e9c96

Moved the select_sync_pool from tty_cookie to tty. No need to have one
per cookie.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22392 a95241bf-73f2-0310-859d-f6bbb57e9c96

* When canonical input processing is enabled reads should only return
anything, if a line is available. Fixes bug #1483.
* Replaced the request owner waiting semaphore by a condition variable
and removed the now no longer needed SemaphorePool.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22357 a95241bf-73f2-0310-859d-f6bbb57e9c96

* We store the ID of the controlling terminal and the foreground process
group ID with the session and let the terminal update them.
* Added an "orphaned" flag to the process_group structure and code to
maintain it.
* Handle the death of a controlling process correctly: The
foreground process group gets a SIGHUP and all newly-orphaned process
groups containing at least one stopped processes are sent
SIGHUP+SIGCONT.
* The tty handles the O_NOCTTY flag correctly, now.
* The tty handles reads/writes from processes from other sessions
correctly, now.
* Handle tcsetpgrp() from background processes correctly.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22187 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Moved members pgrp_id, termios, window_size from the tty structure to
the new structure tty_settings of which there's only one instance per
master/slave tty pair. Previously the existence of two instances of those
members caused several kinds of problems, e.g. the Terminal setting
the window size on the master and CLI programs readings the unchanged
values from the slave. E.g. less correctly adjusts the display when the
Terminal size changes, now.
* Reorganized writing to a TTY. We do no longer handle writes to master
and slave the same way. Writes to the master are "input" and need to
be processed differently from writes to the slave ("output"). Before,
both were processed first as output then as input, which caused incorrect
behavior. E.g. CRs were not echoed correctly.
* Added canonical ERASE (backspace) and KILL (clear line) processing.
Couldn't really see it work. glibc's fgets() seems to read single
chars, so that we never have anything in the line buffer.
* Added handling for EOF. Works well with Be's Terminal, ours seems to
write an ESC sequence instead of the EOF char (Ctrl-D), though.
* Extended output processing support (ECHOE, ECHOK, ECHONL, OCRNL,
ONLRET, OLCUC).
* Writes use user_memcpy() now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21735 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Changed type of "bytesNeeded" to size_t whereever it's used.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17491 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Dealt with (hopefully) all open/close race conditions.
* Implemented unblocking of pending operations when closing a cookie.
Needed to change the simple one reader semaphore, one writer
semaphore strategy for blocking to a request queue based approach
(otherwise unblocking would have been really hairy).
* Implemented select() support.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11931 a95241bf-73f2-0310-859d-f6bbb57e9c96

Work in progress. Basic data exchange seems to work.
Only slightly tested (moved data to and from pty <-> tty).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9087 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added the beginnings of our TTY layer.
After having had a look at our own Terminal code (former MuTerm), I even
copied the original mess in /dev/tt/ and /dev/pt/.
The /dev/tt/ entries could be created and removed on demand, though, but
that can't be done yet.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9041 a95241bf-73f2-0310-859d-f6bbb57e9c96