diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2007-02-28 22:25:41 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2007-02-28 22:25:41 +0000 |
| commit | 148c1f77492a22ddfc87375c3b2464d5521a3843 (patch) | |
| tree | 36c8a9c57a6e4e8a0760215f572a6ed39d6d2cae /include/sys | |
| parent | 0306ff3482fa7c597c9e7bf9dc961a11983c48ef (diff) | |
add support for ppoll() and emulate poll() with it when __NR_poll does not exist
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/poll.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/include/sys/poll.h b/include/sys/poll.h index 89a27eab2..4085b785e 100644 --- a/include/sys/poll.h +++ b/include/sys/poll.h @@ -1,5 +1,5 @@ /* Compatibility definitions for System V `poll' interface. - Copyright (C) 1994,96,97,98,99,2000,2001,2004 Free Software Foundation, Inc. + Copyright (C) 1994,1996-2001,2004,2005,2006 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 @@ -24,6 +24,13 @@ /* Get the platform dependent bits of `poll'. */ #include <bits/poll.h> +#ifdef __USE_GNU +/* Get the __sigset_t definition. */ +# include <bits/sigset.h> +/* Get the timespec definition. */ +# define __need_timespec +# include <time.h> +#endif /* Type used for the number of file descriptors. */ @@ -44,9 +51,24 @@ __BEGIN_DECLS 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. */ + 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 #endif /* sys/poll.h */ |