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Cygwin: serial: select: fix previous revamp patch 

- We need a verify function.
- The event object referenced in WaitCommEvent must not be a local var,
  move it into fhandler_serial.
This commit is contained in:
Åke Rehnman 2020-03-20 10:37:17 +01:00 committed by Corinna Vinschen
parent 2929599590
commit e4f9fc92ac
2 changed files with 9 additions and 4 deletions
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1
winsup/cygwin/fhandler.h
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@ -1685,6 +1685,7 @@ class fhandler_serial: public fhandler_base
pid_t pgrp_;
int rts; /* for Windows 9x purposes only */
int dtr; /* for Windows 9x purposes only */
DWORD event; /* for select */
public:
OVERLAPPED io_status;

12
winsup/cygwin/select.cc
View File

@ -1493,14 +1493,18 @@ serial_read_cleanup (select_record *s, select_stuff *stuff)
}
}
verify_serial (select_record *me, fd_set *rfds, fd_set *wfds, fd_set *efds)
{
return peek_serial (me, true);
}
select_record *
fhandler_serial::select_read (select_stuff *ss)
{
DWORD event;
select_record *s = ss->start.next;
s->startup = no_startup;
s->verify = verify_ok;
s->verify = verify_serial;
s->cleanup = serial_read_cleanup;
s->peek = peek_serial;
s->read_selected = true;
@ -1521,7 +1525,7 @@ fhandler_serial::select_write (select_stuff *ss)
select_record *s = ss->start.next;
s->startup = no_startup;
s->verify = verify_ok;
s->verify = verify_serial;
s->peek = peek_serial;
s->write_selected = true;
s->write_ready = true;
@ -1534,7 +1538,7 @@ fhandler_serial::select_except (select_stuff *ss)
select_record *s = ss->start.next;
s->startup = no_startup;
s->verify = verify_ok;
s->verify = verify_serial;
s->peek = peek_serial;
s->except_selected = false; // Can't do this
s->except_ready = false;