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* fhandler.h (fhandler_base_overlapped): Temporarily (?) make select_pipe_info

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a friend until the fhandler_tty intertangling can be worked out.
* select.cc (select_pipe_info::add_watch_handle): Don't inspect the overlapped
event if we're not waiting for I/O.
(fhandler_tty_common::select_*): Change to standard function.  Don't do kludgy
fhandler_pipe coercion.
This commit is contained in:
Christopher Faylor 2010-03-31 15:00:48 +00:00
parent 2aec20905e
commit e446d6d0f4
3 changed files with 47 additions and 4 deletions
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10
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,13 @@
2010-03-31 Christopher Faylor <me+cygwin@cgf.cx>
* fhandler.h (fhandler_base_overlapped): Temporarily (?) make
select_pipe_info a friend until the fhandler_tty intertangling can be
worked out.
* select.cc (select_pipe_info::add_watch_handle): Don't inspect the
overlapped event if we're not waiting for I/O.
(fhandler_tty_common::select_*): Change to standard function. Don't do
kludgy fhandler_pipe coercion.
2010-03-31 Christopher Faylor <me+cygwin@cgf.cx>
* fhandler.cc (fhandler_base::dup): Call setup_overlapped

2
winsup/cygwin/fhandler.h
View File

@ -569,6 +569,8 @@ public:
void set_overlapped (OVERLAPPED *ov) {overlapped = ov;}
fhandler_base_overlapped (): io_pending (false), overlapped (NULL) {}
bool has_ongoing_io ();
friend class select_pipe_info; /* FIXME: At least correct the naming
here */
};
class fhandler_pipe: public fhandler_base_overlapped

39
winsup/cygwin/select.cc
View File

@ -597,7 +597,7 @@ select_pipe_info::~select_pipe_info ()
void
select_pipe_info::add_watch_handle (fhandler_pipe *fh)
{
if (fh->get_overlapped () && fh->get_overlapped ()->hEvent)
if (fh->io_pending && fh->get_overlapped () && fh->get_overlapped ()->hEvent)
w4[n++] = fh->get_overlapped ()->hEvent;
}
@ -906,19 +906,50 @@ fhandler_console::select_except (select_stuff *ss)
select_record *
fhandler_tty_common::select_read (select_stuff *ss)
{
return ((fhandler_pipe *) this)->fhandler_pipe::select_read (ss);
if (!ss->device_specific_pipe
&& (ss->device_specific_pipe = new select_pipe_info) == NULL)
return NULL;
select_record *s = ss->start.next;
s->startup = start_thread_pipe;
s->peek = peek_pipe;
s->verify = verify_ok;
s->cleanup = pipe_cleanup;
s->read_selected = true;
s->read_ready = false;
return s;
}
select_record *
fhandler_tty_common::select_write (select_stuff *ss)
{
return ((fhandler_pipe *) this)->fhandler_pipe::select_write (ss);
if (!ss->device_specific_pipe
&& (ss->device_specific_pipe = new select_pipe_info) == NULL)
return NULL;
select_record *s = ss->start.next;
s->startup = start_thread_pipe;
s->peek = peek_pipe;
s->verify = verify_ok;
s->cleanup = pipe_cleanup;
s->write_selected = true;
s->write_ready = false;
return s;
}
select_record *
fhandler_tty_common::select_except (select_stuff *ss)
{
return ((fhandler_pipe *) this)->fhandler_pipe::select_except (ss);
if (!ss->device_specific_pipe
&& (ss->device_specific_pipe = new select_pipe_info) == NULL)
return NULL;
select_record *s = ss->start.next;
s->startup = start_thread_pipe;
s->peek = peek_pipe;
s->verify = verify_ok;
s->cleanup = pipe_cleanup;
s->except_selected = true;
s->except_ready = false;
return s;
}
static int