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author | Roland McGrath <roland@gnu.org> | 1999-09-19 20:46:22 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1999-09-19 20:46:22 +0000 |
commit | 50b076f4ddf0b240ec90ff135bd31d9801366cac (patch) | |
tree | 627de8211fc17e85d55108063560eb3972108b6e /hurd/port2fd.c | |
parent | 55ffcab7b6e26b33fcb281aa70dc9abc33aa7ead (diff) | |
download | glibc-50b076f4ddf0b240ec90ff135bd31d9801366cac.zip glibc-50b076f4ddf0b240ec90ff135bd31d9801366cac.tar.gz glibc-50b076f4ddf0b240ec90ff135bd31d9801366cac.tar.bz2 |
1999-09-18 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/wait4.c (__wait4): When proc_wait returns EAGAIN,
return zero to indicate no children died yet (assuming WNOHANG).
* sysdeps/mach/hurd/setsid.c: #include <hurd/fd.h>.
1999-09-17 Roland McGrath <roland@baalperazim.frob.com>
* hurd/port2fd.c (_hurd_port2fd): Never change CTTYID port.
* sysdeps/mach/hurd/setsid.c (__setsid): Fix return type -> pid_t.
Return _hurd_pgrp instead of 0.
Diffstat (limited to 'hurd/port2fd.c')
-rw-r--r-- | hurd/port2fd.c | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/hurd/port2fd.c b/hurd/port2fd.c index 16a5af0..19be74c 100644 --- a/hurd/port2fd.c +++ b/hurd/port2fd.c @@ -27,46 +27,34 @@ D should be locked, and will not be unlocked. */ void -_hurd_port2fd (struct hurd_fd *d, io_t port, int flags) +_hurd_port2fd (struct hurd_fd *d, io_t dport, int flags) { - io_t ctty; mach_port_t cttyid; - int is_ctty = !(flags & O_IGNORE_CTTY) && ! __term_getctty (port, &cttyid); + io_t ctty = MACH_PORT_NULL; - if (is_ctty) - { - /* This port is capable of being a controlling tty. - Is it ours? */ - struct hurd_port *const id = &_hurd_ports[INIT_PORT_CTTYID]; - __spin_lock (&id->lock); - if (id->port == MACH_PORT_NULL) - /* We have no controlling tty, so make this one it. */ - _hurd_port_locked_set (id, cttyid); - else - { - if (cttyid != id->port) - /* We have a controlling tty and this is not it. */ - is_ctty = 0; - /* Either we don't want CTTYID, or ID->port already is it. - So we don't need to change ID->port, and we can release - the reference to CTTYID. */ - __spin_unlock (&id->lock); - __mach_port_deallocate (__mach_task_self (), cttyid); - } - } - - if (!is_ctty || __term_open_ctty (port, _hurd_pid, _hurd_pgrp, &ctty) != 0) - /* XXX if IS_CTTY, then this port is our ctty, but we are - not doing ctty style i/o because term_become_ctty barfed. - What to do? */ - /* No ctty magic happening here. */ - ctty = MACH_PORT_NULL; + if (!(flags & O_IGNORE_CTTY)) + __USEPORT (CTTYID, + ({ + if (port != MACH_PORT_NULL && /* Do we have a ctty? */ + ! __term_getctty (dport, &cttyid)) /* Could this be it? */ + { + __mach_port_deallocate (__mach_task_self (), cttyid); + /* This port is capable of being a controlling tty. + Is it ours? */ + if (cttyid == port) + __term_open_ctty (dport, _hurd_pid, _hurd_pgrp, &ctty); + /* XXX if this port is our ctty, but we are not doing + ctty style i/o because term_become_ctty barfed, + what to do? */ + } + 0; + })); /* Install PORT in the descriptor cell, leaving it locked. */ { mach_port_t old = _hurd_userlink_clear (&d->port.users) ? d->port.port : MACH_PORT_NULL; - d->port.port = port; + d->port.port = dport; d->flags = 0; if (old != MACH_PORT_NULL) __mach_port_deallocate (__mach_task_self (), old); |