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Diffstat (limited to 'winsup/cygwin/select.cc')
-rw-r--r--winsup/cygwin/select.cc40
1 files changed, 14 insertions, 26 deletions
diff --git a/winsup/cygwin/select.cc b/winsup/cygwin/select.cc
index 3122c8203..6d1250cf4 100644
--- a/winsup/cygwin/select.cc
+++ b/winsup/cygwin/select.cc
@@ -100,28 +100,20 @@ cygwin_select (int maxfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
select_printf ("select(%d, %p, %p, %p, %p)", maxfds, readfds, writefds, exceptfds, to);
pthread_testcancel ();
- int res;
- if (maxfds < 0)
- {
- set_errno (EINVAL);
- res = -1;
- }
- else
- {
- /* Convert to milliseconds or INFINITE if to == NULL */
- DWORD ms = to ? (to->tv_sec * 1000) + (to->tv_usec / 1000) : INFINITE;
- if (ms == 0 && to->tv_usec)
- ms = 1; /* At least 1 ms granularity */
- if (to)
- select_printf ("to->tv_sec %d, to->tv_usec %d, ms %d", to->tv_sec, to->tv_usec, ms);
- else
- select_printf ("to NULL, ms %x", ms);
+ /* Convert to milliseconds or INFINITE if to == NULL */
+ DWORD ms = to ? (to->tv_sec * 1000) + (to->tv_usec / 1000) : INFINITE;
+ if (ms == 0 && to->tv_usec)
+ ms = 1; /* At least 1 ms granularity */
- res = select (maxfds, readfds ?: allocfd_set (maxfds),
+ if (to)
+ select_printf ("to->tv_sec %d, to->tv_usec %d, ms %d", to->tv_sec, to->tv_usec, ms);
+ else
+ select_printf ("to NULL, ms %x", ms);
+
+ int res = select (maxfds, readfds ?: allocfd_set (maxfds),
writefds ?: allocfd_set (maxfds),
exceptfds ?: allocfd_set (maxfds), ms);
- }
syscall_printf ("%R = select(%d, %p, %p, %p, %p)", res, maxfds, readfds,
writefds, exceptfds, to);
return res;
@@ -187,7 +179,6 @@ select (int maxfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
else
res = sel.wait (r, w, e, ms); /* wait for an fd to become
become active or time out */
- select_printf ("res %d", res);
if (res >= 0)
{
copyfd_set (readfds, r, maxfds);
@@ -206,10 +197,7 @@ select (int maxfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
select_printf ("recalculating ms");
LONGLONG now = gtod.msecs ();
if (now > (start_time + ms))
- {
- select_printf ("timed out after verification");
- res = select_stuff::select_error;
- }
+ select_printf ("timed out after verification");
else
{
ms -= (now - start_time);
@@ -240,11 +228,11 @@ pselect(int maxfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
tv.tv_usec = ts->tv_nsec / 1000;
}
if (set)
- set_signal_mask (_my_tls.sigmask, *set);
+ set_signal_mask (*set, _my_tls.sigmask);
int ret = cygwin_select (maxfds, readfds, writefds, exceptfds,
ts ? &tv : NULL);
if (set)
- set_signal_mask (_my_tls.sigmask, oldset);
+ set_signal_mask (oldset, _my_tls.sigmask);
return ret;
}
@@ -332,7 +320,7 @@ select_stuff::wait (fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
select_record *s = &start;
DWORD m = 0;
- set_signal_arrived here (w4[m++]);
+ w4[m++] = signal_arrived; /* Always wait for the arrival of a signal. */
if ((w4[m] = pthread::get_cancel_event ()) != NULL)
m++;