add epoll_pwait()

Change const to __const while at it.

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc/sysdeps/linux/common/epoll.c

@@ -1,6 +1,6 @@
 /* vi: set sw=4 ts=4: */
 /*
- * epoll_create() / epoll_ctl() / epoll_wait() for uClibc
+ * epoll_create() / epoll_ctl() / epoll_wait() / epoll_pwait() for uClibc
  *
  * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
  *
@@ -15,30 +15,18 @@
 # define SINGLE_THREAD_P 1
 #endif
 
-/*
- * epoll_create()
- */
 #ifdef __NR_epoll_create
 _syscall1(int, epoll_create, int, size)
 #endif
 
-/*
- * epoll_create1()
- */
 #ifdef __NR_epoll_create1
 _syscall1(int, epoll_create1, int, flags)
 #endif
 
-/*
- * epoll_ctl()
- */
 #ifdef __NR_epoll_ctl
-_syscall4(int,epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event *, event)
+_syscall4(int, epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event *, event)
 #endif
 
-/*
- * epoll_wait()
- */
 #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)
@@ -57,15 +45,12 @@ int __libc_epoll_wait(int epfd, struct epoll_event *events, int maxevents, int t
 weak_alias(__libc_epoll_wait, epoll_wait)
 #endif
 
-/*
- * epoll_pwait()
- */
 #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 timeout, __const sigset_t *set)
 {
     int nsig = _NSIG / 8;
 	if (SINGLE_THREAD_P)
@@ -81,3 +66,9 @@ int __libc_epoll_pwait(int epfd, struct epoll_event *events, int maxevents,
 }
 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

libc/sysdeps/linux/common/sys/epoll.h

@@ -36,7 +36,6 @@ typedef __sigset_t sigset_t;
 # define __EPOLL_PACKED
 #endif
 
-
 enum EPOLL_EVENTS
   {
     EPOLLIN = 0x001,
@@ -97,7 +96,7 @@ __BEGIN_DECLS
    returned by epoll_create() should be closed with close().  */
 extern int epoll_create (int __size) __THROW;
 
-/* Same as epoll_create but with an FLAGS parameter.  The unused SIZE
+/* Same as epoll_create but with a FLAGS parameter.  The unused SIZE
    parameter has been dropped.  */
 extern int epoll_create1 (int __flags) __THROW;