<commit_before>/* vi: set sw=4 ts=4: */
/*
 * epoll_create() / epoll_ctl() / epoll_wait() / epoll_pwait() for uClibc
 *
 * Copyright (C) 2000-2006 <NAME> <<EMAIL>>
 *
 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 */

#include <sys/syscall.h>
#include <sys/epoll.h>
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
# include <sysdep-cancel.h>
#else
# define SINGLE_THREAD_P 1
#endif

#ifdef __NR_epoll_create
_syscall1(int, epoll_create, int, size)
#endif

#ifdef __NR_epoll_create1
_syscall1(int, epoll_create1, int, flags)
#endif

#ifdef __NR_epoll_ctl
_syscall4(int, epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event *, event)
#endif

#ifdef __NR_epoll_wait
extern __typeof(epoll_wait) __libc_epoll_wait;
int __libc_epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)
{
	if (SINGLE_THREAD_P)
		return INLINE_SYSCALL(epoll_wait, 4, epfd, events, maxevents, timeout);
# ifdef __UCLIBC_HAS_THREADS_NATIVE__
	else {
		int oldtype = LIBC_CANCEL_ASYNC ();
		int result = INLINE_SYSCALL(epoll_wait, 4, epfd, events, maxevents, timeout);
		LIBC_CANCEL_RESET (oldtype);
		return result;
	}
# endif
}
weak_alias(__libc_epoll_wait, epoll_wait)
#endif

#ifdef __NR_epoll_pwait
# include <signal.h>

extern __typeof(epoll_pwait) __libc_epoll_pwait;
int __libc_epoll_pwait(int epfd, struct epoll_event *events, int maxevents,
						int timeout, __const sigset_t *set)
{
    int nsig = _NSIG / 8;
	if (SINGLE_THREAD_P)
		return INLINE_SYSCALL(epoll_pwait, 6, epfd, events, maxevents, timeout, set, nsig);
# ifdef __UCLIBC_HAS_THREADS_NATIVE__
	else {
		int oldtype = LIBC_CANCEL_ASYNC ();
		int result = INLINE_SYSCALL(epoll_pwait, 6, epfd, events, maxevents, timeout, set, nsig);
		LIBC_CANCEL_RESET (oldtype);
		return result;
	}
# endif
}
weak_alias(__libc_epoll_pwait, epoll_pwait)
#endif

#ifdef __NR_epoll_pwait
_syscall5(int, epoll_pwait, int, epfd, struct epoll_event *, events, int, maxevents, int, timeout,
	  __const sigset_t *, ss)
/* TODO: add cancellation for epoll_pwait */
#endif<commit_msg>epoll.c: add cancellation to epoll_[p]wait()<commit_after>/* vi: set sw=4 ts=4: */
/*
 * epoll_create() / epoll_ctl() / epoll_wait() / epoll_pwait() for uClibc
 *
 * Copyright (C) 2000-2006 <NAME> <<EMAIL>>
 *
 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 */

#include <sys/syscall.h>
#include <sys/epoll.h>
#include <cancel.h>

#ifdef __NR_epoll_create
_syscall1(int, epoll_create, int, size)
#endif

#ifdef __NR_epoll_create1
_syscall1(int, epoll_create1, int, flags)
#endif

#ifdef __NR_epoll_ctl
_syscall4(int, epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event *, event)
#endif

#ifdef __NR_epoll_wait
static int __NC(epoll_wait)(int epfd, struct epoll_event *events, int maxevents, int timeout)
{
	return INLINE_SYSCALL(epoll_wait, 4, epfd, events, maxevents, timeout);
}
CANCELLABLE_SYSCALL(int, epoll_wait, (int epfd, struct epoll_event *events, int maxevents, int timeout),
		    (epfd, events, maxevents, timeout))
#endif

#ifdef __NR_epoll_pwait
# include <signal.h>

# define __NR___syscall_epoll_pwait __NR_epoll_pwait
static __always_inline _syscall6(int, __syscall_epoll_pwait, int, epfd, struct epoll_event *, events,
				 int, maxevents, int, timeout, __const sigset_t *, sigmask, size_t, sigsetsize)

static int __NC(epoll_pwait)(int epfd, struct epoll_event *events, int maxevents, int timeout,
			     __const sigset_t *set)
{
	return __syscall_epoll_pwait(epfd, events, maxevents, timeout, set, __SYSCALL_SIGSET_T_SIZE);
}
CANCELLABLE_SYSCALL(int, epoll_pwait, (int epfd, struct epoll_event *events, int maxevents, int timeout,
				       __const sigset_t *set),
		    (epfd, events, maxevents, timeout, set))
#endif
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