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Diffstat (limited to 'REORG.TODO/io/sys/poll.h')
-rw-r--r-- | REORG.TODO/io/sys/poll.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/REORG.TODO/io/sys/poll.h b/REORG.TODO/io/sys/poll.h new file mode 100644 index 0000000000..e34c2db5a9 --- /dev/null +++ b/REORG.TODO/io/sys/poll.h @@ -0,0 +1,76 @@ +/* Compatibility definitions for System V `poll' interface. + Copyright (C) 1994-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_POLL_H +#define _SYS_POLL_H 1 + +#include <features.h> + +/* Get the platform dependent bits of `poll'. */ +#include <bits/poll.h> +#ifdef __USE_GNU +# include <bits/types/__sigset_t.h> +# include <bits/types/struct_timespec.h> +#endif + + +/* Type used for the number of file descriptors. */ +typedef unsigned long int nfds_t; + +/* Data structure describing a polling request. */ +struct pollfd + { + int fd; /* File descriptor to poll. */ + short int events; /* Types of events poller cares about. */ + short int revents; /* Types of events that actually occurred. */ + }; + + +__BEGIN_DECLS + +/* Poll the file descriptors described by the NFDS structures starting at + FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for + an event to occur; if TIMEOUT is -1, block until an event occurs. + Returns the number of file descriptors with events, zero if timed out, + or -1 for errors. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout); + +#ifdef __USE_GNU +/* Like poll, but before waiting the threads signal mask is replaced + with that specified in the fourth parameter. For better usability, + the timeout value is specified using a TIMESPEC object. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int ppoll (struct pollfd *__fds, nfds_t __nfds, + const struct timespec *__timeout, + const __sigset_t *__ss); +#endif + +__END_DECLS + + +/* Define some inlines helping to catch common problems. */ +#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function +# include <bits/poll2.h> +#endif + +#endif /* sys/poll.h */ |