Permalink
Browse files

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 <mjuszkiewicz@redhat.com>
  • Loading branch information...
hrw authored and Nick Mathewson committed Jan 22, 2014
1 parent eaa79cd commit dfe1e526f5bb9db3c0b28d848170f35521ebd314
Showing with 13 additions and 0 deletions.
  1. +13 −0 epoll_sub.c
View
@@ -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
}

0 comments on commit dfe1e52

Please sign in to comment.