| /* vi: set sw=4 ts=4: */ |
| /* |
| * epoll_create() / epoll_ctl() / epoll_wait() for uClibc |
| * |
| * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| * |
| * 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 |
| |
| /* |
| * 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) |
| #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) |
| { |
| 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 |
| |
| /* |
| * 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 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 |