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* syscalls.cc (check_tty_fds): New function. Check whether there is a fd

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referring to pty slave.
(setsid): Don't detach console if the process has a pty slave.
This commit is contained in:
Christopher Faylor 2001-08-25 17:27:31 +00:00
parent 46f2e78081
commit e32b4e81cb
2 changed files with 25 additions and 2 deletions
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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
2001-08-24 Kazuhiro Fujieda <fujieda@jaist.ac.jp>
* syscalls.cc (check_tty_fds): New function. Check whether there is a
fd referring to pty slave.
(setsid): Don't detach console if the process has a pty slave.
Fri Aug 24 8:54:00 2001 Corinna Vinschen <corinna@vinschen.de>
* net.cc (free_addr_list): Add define for symmetry.

21
winsup/cygwin/syscalls.cc
View File

@ -65,6 +65,22 @@ close_all_files (void)
cygwin_shared->delqueue.process_queue ();
}
static BOOL __stdcall
check_ttys_fds (void)
{
int res = FALSE;
SetResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "close_all_files");
fhandler_base *fh;
for (int i = 0; i < (int) cygheap->fdtab.size; i++)
if ((fh = cygheap->fdtab[i]) != NULL && fh->get_device() == FH_TTYS)
{
res = TRUE;
break;
}
ReleaseResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "close_all_files");
return res;
}
extern "C" int
_unlink (const char *ourname)
{
@ -237,10 +253,11 @@ getppid ()
extern "C" pid_t
setsid (void)
{
/* FIXME: for now */
if (myself->pgid != _getpid ())
{
if (myself->ctty == TTY_CONSOLE && !cygheap->fdtab.has_console_fds ())
if (myself->ctty == TTY_CONSOLE &&
!cygheap->fdtab.has_console_fds () &&
!check_ttys_fds ())
FreeConsole ();
myself->ctty = -1;
myself->sid = _getpid ();