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Check does arch have the epoll_create and __NR_epoll_wait syscalls.

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

Signed-off-by: Marcin Juszkiewicz <mjuszkiewicz@redhat.com>
This commit is contained in:
Marcin Juszkiewicz 2014-01-22 11:17:35 +01:00 committed by Nick Mathewson
parent eaa79cd459
commit dfe1e526f5
1 changed files with 13 additions and 0 deletions
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13
epoll_sub.c
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@ -31,11 +31,20 @@
#include <sys/syscall.h> #include <sys/syscall.h>
#include <sys/epoll.h> #include <sys/epoll.h>
#include <unistd.h> #include <unistd.h>
#include <errno.h>
int int
epoll_create(int size) 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)); return (syscall(__NR_epoll_create, size));
#endif
} }
int int
@ -48,5 +57,9 @@ epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
int int
epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout) 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)); return (syscall(__NR_epoll_wait, epfd, events, maxevents, timeout));
#endif
} }