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* Makefile.in (DLL_OFILES): Sort. 

* fhandler_tty.cc (fhandler_tty_slave::send_ioctl_request): Eliminate.
(fhandler_tty_slave::ioctl): Rewrite to avoid races.
This commit is contained in:
Christopher Faylor 2000-05-12 05:06:43 +00:00
parent cfe11d7465
commit ad0bed746d
4 changed files with 47 additions and 35 deletions
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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
Fri May 12 01:04:57 2000 Christopher Faylor <cgf@cygnus.com>
* Makefile.in (DLL_OFILES): Sort.
* fhandler_tty.cc (fhandler_tty_slave::send_ioctl_request): Eliminate.
(fhandler_tty_slave::ioctl): Rewrite to avoid races.
2000-05-11 Mumit Khan <khan@xraylith.wisc.edu>
* mmap.cc (list::erase): Increment loop counter.

20
winsup/cygwin/Makefile.in
View File

@ -118,20 +118,20 @@ DLL_IMPORTS:=$(w32api_lib)/libkernel32.a $(w32api_lib)/libadvapi32.a
DLL_OFILES:=assert.o dcrt0.o debug.o delqueue.o dir.o dlfcn.o dll_init.o \
environ.o errno.o exceptions.o exec.o external.o fcntl.o fhandler.o \
fhandler_console.o fhandler_serial.o fhandler_termios.o fhandler_tty.o \
fhandler_windows.o fhandler_raw.o fhandler_floppy.o fhandler_tape.o \
fhandler_zero.o fhandler_random.o \
fork.o glob.o grp.o heap.o hinfo.o init.o ioctl.o localtime.o malloc.o \
mmap.o net.o ntea.o passwd.o path.o pinfo.o pipe.o regexp.o regerror.o \
regsub.o registry.o resource.o scandir.o security.o select.o shared.o \
signal.o sigproc.o smallprint.o spawn.o strace.o strsep.o sync.o \
syscalls.o sysconf.o syslog.o termios.o times.o tty.o uinfo.o uname.o \
wait.o window.o \
fhandler_console.o fhandler_floppy.o fhandler_random.o fhandler_raw.o \
fhandler_serial.o fhandler_tape.o fhandler_termios.o fhandler_tty.o \
fhandler_windows.o fhandler_zero.o fork.o glob.o grp.o heap.o hinfo.o \
init.o ioctl.o localtime.o malloc.o mmap.o net.o ntea.o passwd.o \
path.o pinfo.o pipe.o regexp.o regerror.o regsub.o registry.o \
resource.o scandir.o security.o select.o shared.o signal.o sigproc.o \
smallprint.o spawn.o strace.o strsep.o sync.o syscalls.o sysconf.o \
syslog.o termios.o times.o tty.o uinfo.o uname.o wait.o window.o \
$(EXTRA_DLL_OFILES) $(EXTRA_OFILES) $(MT_SAFE_OBJECTS)
GMON_OFILES:= gmon.o mcount.o profil.o
LD_STUFF=--dll $(DLL_OFILES) version.o winver.o $(DLL_IMPORTS) $(LIBM) $(LIBC) $(LIBGCC) -e $(DLL_ENTRY) --image-base=0x61000000
LD_STUFF=--dll $(DLL_OFILES) version.o winver.o $(DLL_IMPORTS) $(LIBM) $(LIBC) \
$(LIBGCC) -e $(DLL_ENTRY) --image-base=0x61000000
.PHONY: all force dll_ofiles install

2
winsup/cygwin/fhandler.h
View File

@ -645,8 +645,6 @@ public:
class fhandler_tty_slave: public fhandler_tty_common
{
void send_ioctl_request ();
public:
/* Constructor */
fhandler_tty_slave (const char *name);

54
winsup/cygwin/fhandler_tty.cc
View File

@ -779,18 +779,6 @@ fhandler_tty_slave::tcflush (int)
return 0;
}
void
fhandler_tty_slave::send_ioctl_request (void)
{
if (ioctl_request_event == NULL || ioctl_done_event == NULL) // slave of pty
return;
acquire_output_mutex (INFINITE);
SetEvent (ioctl_request_event);
WaitForSingleObject (ioctl_done_event, INFINITE);
release_output_mutex ();
}
int
fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
{
@ -804,31 +792,51 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
myself->pgid, get_ttyp ()->getpgid (), myself->ctty);
_raise (SIGTTOU);
}
get_ttyp ()->cmd = cmd;
get_ttyp ()->ioctl_retval = 0;
switch (cmd)
{
case TIOCGWINSZ:
get_ttyp ()->arg.winsize = get_ttyp ()->winsize;
send_ioctl_request ();
* (struct winsize *) arg = get_ttyp ()->arg.winsize;
get_ttyp ()->winsize = get_ttyp ()->arg.winsize;
break;
case TIOCSWINSZ:
get_ttyp ()->ioctl_retval = -1;
get_ttyp ()->arg.winsize = * (struct winsize *) arg;
send_ioctl_request ();
break;
case FIONBIO:
if (* (int *) arg)
set_flags (get_flags () | O_NONBLOCK);
else
set_flags (get_flags () & ~O_NONBLOCK);
break;
goto out;
default:
set_errno (EINVAL);
return -1;
}
acquire_output_mutex (INFINITE);
get_ttyp ()->cmd = cmd;
get_ttyp ()->ioctl_retval = 0;
switch (cmd)
{
case TIOCGWINSZ:
get_ttyp ()->arg.winsize = get_ttyp ()->winsize;
if (ioctl_request_event)
SetEvent (ioctl_request_event);
* (struct winsize *) arg = get_ttyp ()->arg.winsize;
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
get_ttyp ()->winsize = get_ttyp ()->arg.winsize;
break;
case TIOCSWINSZ:
get_ttyp ()->ioctl_retval = -1;
get_ttyp ()->arg.winsize = * (struct winsize *) arg;
if (ioctl_request_event)
SetEvent (ioctl_request_event);
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
break;
}
release_output_mutex ();
out:
termios_printf ("%d = ioctl (%x)", get_ttyp ()->ioctl_retval, cmd);
return get_ttyp ()->ioctl_retval;
}