diff options
Diffstat (limited to 'manual/examples/select.c')
-rw-r--r-- | manual/examples/select.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/manual/examples/select.c b/manual/examples/select.c deleted file mode 100644 index 16c54c0c63..0000000000 --- a/manual/examples/select.c +++ /dev/null @@ -1,58 +0,0 @@ -/* Waiting for Input or Output - Copyright (C) 1991-2017 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License - as published by the Free Software Foundation; either version 2 - of the License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, if not, see <http://www.gnu.org/licenses/>. -*/ - -/*@group*/ -#include <errno.h> -#include <stdio.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/time.h> -/*@end group*/ - -/*@group*/ -int -input_timeout (int filedes, unsigned int seconds) -{ - fd_set set; - struct timeval timeout; -/*@end group*/ - - /* Initialize the file descriptor set. */ - FD_ZERO (&set); - FD_SET (filedes, &set); - - /* Initialize the timeout data structure. */ - timeout.tv_sec = seconds; - timeout.tv_usec = 0; - -/*@group*/ - /* @code{select} returns 0 if timeout, 1 if input available, -1 if error. */ - return TEMP_FAILURE_RETRY (select (FD_SETSIZE, - &set, NULL, NULL, - &timeout)); -} -/*@end group*/ - -/*@group*/ -int -main (void) -{ - fprintf (stderr, "select returned %d.\n", - input_timeout (STDIN_FILENO, 5)); - return 0; -} -/*@end group*/ |