kcc: typo fix in AttributeError Exception
[Samba.git] / lib / util / select.c
blob99cd772bae8a9f90c9d2493affcc8e541f094e9e
1 /*
2 Unix SMB/Netbios implementation.
3 Version 3.0
4 Samba select/poll implementation
5 Copyright (C) Andrew Tridgell 1992-1998
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "includes.h"
22 #include "system/filesys.h"
23 #include "system/select.h"
24 #include "lib/util/select.h"
26 int sys_poll_intr(struct pollfd *fds, int num_fds, int timeout)
28 int orig_timeout = timeout;
29 struct timespec start;
30 int ret;
32 clock_gettime_mono(&start);
34 while (true) {
35 struct timespec now;
36 int64_t elapsed;
38 ret = poll(fds, num_fds, timeout);
39 if (ret != -1) {
40 break;
42 if (errno != EINTR) {
43 break;
45 /* Infinite timeout, no need to adjust. */
46 if (timeout < 0) {
47 continue;
49 clock_gettime_mono(&now);
50 elapsed = nsec_time_diff(&now, &start) / 1000000;
51 timeout = orig_timeout - elapsed;
52 /* Unlikely, but might happen eg. when getting traced.
53 * Make sure we're not hanging in this case.
55 if (timeout < 0) {
56 timeout = 0;
59 return ret;