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author | Davide Libenzi <davidel@xmailserver.org> | 2006-10-11 01:21:44 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-11 11:14:21 -0700 |
commit | b611967de4dc5c52049676c4369dcac622a7cdfe (patch) | |
tree | 8c19038c8bbaa4851dcb99bed33707deaf5170d1 /include/linux/syscalls.h | |
parent | 0f836e5fecf59d0d0353e9af11fd14a32a3001ae (diff) | |
download | linux-b611967de4dc5c52049676c4369dcac622a7cdfe.tar.gz linux-b611967de4dc5c52049676c4369dcac622a7cdfe.tar.bz2 linux-b611967de4dc5c52049676c4369dcac622a7cdfe.zip |
[PATCH] epoll_pwait()
Implement the epoll_pwait system call, that extend the event wait mechanism
with the same logic ppoll and pselect do. The definition of epoll_pwait
is:
int epoll_pwait(int epfd, struct epoll_event *events, int maxevents,
int timeout, const sigset_t *sigmask, size_t sigsetsize);
The difference between the vanilla epoll_wait and epoll_pwait is that the
latter allows the caller to specify a signal mask to be set while waiting
for events. Hence epoll_pwait will wait until either one monitored event,
or an unmasked signal happen. If sigmask is NULL, the epoll_pwait system
call will act exactly like epoll_wait. For the POSIX definition of
pselect, information is available here:
http://www.opengroup.org/onlinepubs/009695399/functions/select.html
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Andi Kleen <ak@muc.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/syscalls.h')
-rw-r--r-- | include/linux/syscalls.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index b0ace3fd7eb9..1912c6cbef55 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -431,6 +431,10 @@ asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event); asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, int maxevents, int timeout); +asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, + int maxevents, int timeout, + const sigset_t __user *sigmask, + size_t sigsetsize); asmlinkage long sys_gethostname(char __user *name, int len); asmlinkage long sys_sethostname(char __user *name, int len); asmlinkage long sys_setdomainname(char __user *name, int len); |