Check does arch have the epoll_create and __NR_epoll_wait syscalls.

Some architectures (like AArch64) do not have deprecated syscalls.

Signed-off-by: Marcin Juszkiewicz <[email protected]>

epoll_sub.c

@@ -31,11 +31,20 @@
 #include <sys/syscall.h>
 #include <sys/epoll.h>
 #include <unistd.h>
+#include <errno.h>
 
 int
 epoll_create(int size)
 {
+#if !defined(__NR_epoll_create) && defined(__NR_epoll_create1)
+	if (size <= 0) {
+		errno = EINVAL;
+		return -1;
+	}
+	return (syscall(__NR_epoll_create1, 0));
+#else
 	return (syscall(__NR_epoll_create, size));
+#endif
 }
 
 int
@@ -48,5 +57,9 @@ epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
 int
 epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)
 {
+#if !defined(__NR_epoll_wait) && defined(__NR_epoll_pwait)
+	return (syscall(__NR_epoll_pwait, epfd, events, maxevents, timeout, NULL, 0));
+#else
 	return (syscall(__NR_epoll_wait, epfd, events, maxevents, timeout));
+#endif
 }