ext/libuv/src/unix/linux-syscalls.c in libuv-0.10.0 vs ext/libuv/src/unix/linux-syscalls.c in libuv-0.10.2
- old
+ new
@@ -1,388 +1,388 @@
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "linux-syscalls.h"
-#include <unistd.h>
-#include <sys/syscall.h>
-#include <sys/types.h>
-#include <errno.h>
-
-#if defined(__i386__)
-# ifndef __NR_socketcall
-# define __NR_socketcall 102
-# endif
-#endif
-
-#if defined(__arm__)
-# if defined(__thumb__) || defined(__ARM_EABI__)
-# define UV_SYSCALL_BASE 0
-# else
-# define UV_SYSCALL_BASE 0x900000
-# endif
-#endif /* __arm__ */
-
-#ifndef __NR_accept4
-# if defined(__x86_64__)
-# define __NR_accept4 288
-# elif defined(__i386__)
- /* Nothing. Handled through socketcall(). */
-# elif defined(__arm__)
-# define __NR_accept4 (UV_SYSCALL_BASE + 366)
-# endif
-#endif /* __NR_accept4 */
-
-#ifndef __NR_eventfd
-# if defined(__x86_64__)
-# define __NR_eventfd 284
-# elif defined(__i386__)
-# define __NR_eventfd 323
-# elif defined(__arm__)
-# define __NR_eventfd (UV_SYSCALL_BASE + 351)
-# endif
-#endif /* __NR_eventfd */
-
-#ifndef __NR_eventfd2
-# if defined(__x86_64__)
-# define __NR_eventfd2 290
-# elif defined(__i386__)
-# define __NR_eventfd2 328
-# elif defined(__arm__)
-# define __NR_eventfd2 (UV_SYSCALL_BASE + 356)
-# endif
-#endif /* __NR_eventfd2 */
-
-#ifndef __NR_epoll_create
-# if defined(__x86_64__)
-# define __NR_epoll_create 213
-# elif defined(__i386__)
-# define __NR_epoll_create 254
-# elif defined(__arm__)
-# define __NR_epoll_create (UV_SYSCALL_BASE + 250)
-# endif
-#endif /* __NR_epoll_create */
-
-#ifndef __NR_epoll_create1
-# if defined(__x86_64__)
-# define __NR_epoll_create1 291
-# elif defined(__i386__)
-# define __NR_epoll_create1 329
-# elif defined(__arm__)
-# define __NR_epoll_create1 (UV_SYSCALL_BASE + 357)
-# endif
-#endif /* __NR_epoll_create1 */
-
-#ifndef __NR_epoll_ctl
-# if defined(__x86_64__)
-# define __NR_epoll_ctl 233 /* used to be 214 */
-# elif defined(__i386__)
-# define __NR_epoll_ctl 255
-# elif defined(__arm__)
-# define __NR_epoll_ctl (UV_SYSCALL_BASE + 251)
-# endif
-#endif /* __NR_epoll_ctl */
-
-#ifndef __NR_epoll_wait
-# if defined(__x86_64__)
-# define __NR_epoll_wait 232 /* used to be 215 */
-# elif defined(__i386__)
-# define __NR_epoll_wait 256
-# elif defined(__arm__)
-# define __NR_epoll_wait (UV_SYSCALL_BASE + 252)
-# endif
-#endif /* __NR_epoll_wait */
-
-#ifndef __NR_epoll_pwait
-# if defined(__x86_64__)
-# define __NR_epoll_pwait 281
-# elif defined(__i386__)
-# define __NR_epoll_pwait 319
-# elif defined(__arm__)
-# define __NR_epoll_pwait (UV_SYSCALL_BASE + 346)
-# endif
-#endif /* __NR_epoll_pwait */
-
-#ifndef __NR_inotify_init
-# if defined(__x86_64__)
-# define __NR_inotify_init 253
-# elif defined(__i386__)
-# define __NR_inotify_init 291
-# elif defined(__arm__)
-# define __NR_inotify_init (UV_SYSCALL_BASE + 316)
-# endif
-#endif /* __NR_inotify_init */
-
-#ifndef __NR_inotify_init1
-# if defined(__x86_64__)
-# define __NR_inotify_init1 294
-# elif defined(__i386__)
-# define __NR_inotify_init1 332
-# elif defined(__arm__)
-# define __NR_inotify_init1 (UV_SYSCALL_BASE + 360)
-# endif
-#endif /* __NR_inotify_init1 */
-
-#ifndef __NR_inotify_add_watch
-# if defined(__x86_64__)
-# define __NR_inotify_add_watch 254
-# elif defined(__i386__)
-# define __NR_inotify_add_watch 292
-# elif defined(__arm__)
-# define __NR_inotify_add_watch (UV_SYSCALL_BASE + 317)
-# endif
-#endif /* __NR_inotify_add_watch */
-
-#ifndef __NR_inotify_rm_watch
-# if defined(__x86_64__)
-# define __NR_inotify_rm_watch 255
-# elif defined(__i386__)
-# define __NR_inotify_rm_watch 293
-# elif defined(__arm__)
-# define __NR_inotify_rm_watch (UV_SYSCALL_BASE + 318)
-# endif
-#endif /* __NR_inotify_rm_watch */
-
-#ifndef __NR_pipe2
-# if defined(__x86_64__)
-# define __NR_pipe2 293
-# elif defined(__i386__)
-# define __NR_pipe2 331
-# elif defined(__arm__)
-# define __NR_pipe2 (UV_SYSCALL_BASE + 359)
-# endif
-#endif /* __NR_pipe2 */
-
-#ifndef __NR_recvmmsg
-# if defined(__x86_64__)
-# define __NR_recvmmsg 299
-# elif defined(__i386__)
-# define __NR_recvmmsg 337
-# elif defined(__arm__)
-# define __NR_recvmmsg (UV_SYSCALL_BASE + 365)
-# endif
-#endif /* __NR_recvmsg */
-
-#ifndef __NR_sendmmsg
-# if defined(__x86_64__)
-# define __NR_sendmmsg 307
-# elif defined(__i386__)
-# define __NR_sendmmsg 345
-# elif defined(__arm__)
-# define __NR_sendmmsg (UV_SYSCALL_BASE + 374)
-# endif
-#endif /* __NR_sendmmsg */
-
-#ifndef __NR_utimensat
-# if defined(__x86_64__)
-# define __NR_utimensat 280
-# elif defined(__i386__)
-# define __NR_utimensat 320
-# elif defined(__arm__)
-# define __NR_utimensat (UV_SYSCALL_BASE + 348)
-# endif
-#endif /* __NR_utimensat */
-
-
-int uv__accept4(int fd, struct sockaddr* addr, socklen_t* addrlen, int flags) {
-#if defined(__i386__)
- unsigned long args[4];
- int r;
-
- args[0] = (unsigned long) fd;
- args[1] = (unsigned long) addr;
- args[2] = (unsigned long) addrlen;
- args[3] = (unsigned long) flags;
-
- r = syscall(__NR_socketcall, 18 /* SYS_ACCEPT4 */, args);
-
- /* socketcall() raises EINVAL when SYS_ACCEPT4 is not supported but so does
- * a bad flags argument. Try to distinguish between the two cases.
- */
- if (r == -1)
- if (errno == EINVAL)
- if ((flags & ~(UV__SOCK_CLOEXEC|UV__SOCK_NONBLOCK)) == 0)
- errno = ENOSYS;
-
- return r;
-#elif defined(__NR_accept4)
- return syscall(__NR_accept4, fd, addr, addrlen, flags);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__eventfd(unsigned int count) {
-#if defined(__NR_eventfd)
- return syscall(__NR_eventfd, count);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__eventfd2(unsigned int count, int flags) {
-#if defined(__NR_eventfd2)
- return syscall(__NR_eventfd2, count, flags);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__epoll_create(int size) {
-#if defined(__NR_epoll_create)
- return syscall(__NR_epoll_create, size);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__epoll_create1(int flags) {
-#if defined(__NR_epoll_create1)
- return syscall(__NR_epoll_create1, flags);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__epoll_ctl(int epfd, int op, int fd, struct uv__epoll_event* events) {
-#if defined(__NR_epoll_ctl)
- return syscall(__NR_epoll_ctl, epfd, op, fd, events);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__epoll_wait(int epfd,
- struct uv__epoll_event* events,
- int nevents,
- int timeout) {
-#if defined(__NR_epoll_wait)
- return syscall(__NR_epoll_wait, epfd, events, nevents, timeout);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__epoll_pwait(int epfd,
- struct uv__epoll_event* events,
- int nevents,
- int timeout,
- const sigset_t* sigmask) {
-#if defined(__NR_epoll_pwait)
- return syscall(__NR_epoll_pwait,
- epfd,
- events,
- nevents,
- timeout,
- sigmask,
- sizeof(*sigmask));
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__inotify_init(void) {
-#if defined(__NR_inotify_init)
- return syscall(__NR_inotify_init);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__inotify_init1(int flags) {
-#if defined(__NR_inotify_init1)
- return syscall(__NR_inotify_init1, flags);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__inotify_add_watch(int fd, const char* path, uint32_t mask) {
-#if defined(__NR_inotify_add_watch)
- return syscall(__NR_inotify_add_watch, fd, path, mask);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__inotify_rm_watch(int fd, int32_t wd) {
-#if defined(__NR_inotify_rm_watch)
- return syscall(__NR_inotify_rm_watch, fd, wd);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__pipe2(int pipefd[2], int flags) {
-#if defined(__NR_pipe2)
- return syscall(__NR_pipe2, pipefd, flags);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__sendmmsg(int fd,
- struct uv__mmsghdr* mmsg,
- unsigned int vlen,
- unsigned int flags) {
-#if defined(__NR_sendmmsg)
- return syscall(__NR_sendmmsg, fd, mmsg, vlen, flags);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__recvmmsg(int fd,
- struct uv__mmsghdr* mmsg,
- unsigned int vlen,
- unsigned int flags,
- struct timespec* timeout) {
-#if defined(__NR_recvmmsg)
- return syscall(__NR_recvmmsg, fd, mmsg, vlen, flags, timeout);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
-
-
-int uv__utimesat(int dirfd,
- const char* path,
- const struct timespec times[2],
- int flags)
-{
-#if defined(__NR_utimensat)
- return syscall(__NR_utimensat, dirfd, path, times, flags);
-#else
- return errno = ENOSYS, -1;
-#endif
-}
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "linux-syscalls.h"
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <errno.h>
+
+#if defined(__i386__)
+# ifndef __NR_socketcall
+# define __NR_socketcall 102
+# endif
+#endif
+
+#if defined(__arm__)
+# if defined(__thumb__) || defined(__ARM_EABI__)
+# define UV_SYSCALL_BASE 0
+# else
+# define UV_SYSCALL_BASE 0x900000
+# endif
+#endif /* __arm__ */
+
+#ifndef __NR_accept4
+# if defined(__x86_64__)
+# define __NR_accept4 288
+# elif defined(__i386__)
+ /* Nothing. Handled through socketcall(). */
+# elif defined(__arm__)
+# define __NR_accept4 (UV_SYSCALL_BASE + 366)
+# endif
+#endif /* __NR_accept4 */
+
+#ifndef __NR_eventfd
+# if defined(__x86_64__)
+# define __NR_eventfd 284
+# elif defined(__i386__)
+# define __NR_eventfd 323
+# elif defined(__arm__)
+# define __NR_eventfd (UV_SYSCALL_BASE + 351)
+# endif
+#endif /* __NR_eventfd */
+
+#ifndef __NR_eventfd2
+# if defined(__x86_64__)
+# define __NR_eventfd2 290
+# elif defined(__i386__)
+# define __NR_eventfd2 328
+# elif defined(__arm__)
+# define __NR_eventfd2 (UV_SYSCALL_BASE + 356)
+# endif
+#endif /* __NR_eventfd2 */
+
+#ifndef __NR_epoll_create
+# if defined(__x86_64__)
+# define __NR_epoll_create 213
+# elif defined(__i386__)
+# define __NR_epoll_create 254
+# elif defined(__arm__)
+# define __NR_epoll_create (UV_SYSCALL_BASE + 250)
+# endif
+#endif /* __NR_epoll_create */
+
+#ifndef __NR_epoll_create1
+# if defined(__x86_64__)
+# define __NR_epoll_create1 291
+# elif defined(__i386__)
+# define __NR_epoll_create1 329
+# elif defined(__arm__)
+# define __NR_epoll_create1 (UV_SYSCALL_BASE + 357)
+# endif
+#endif /* __NR_epoll_create1 */
+
+#ifndef __NR_epoll_ctl
+# if defined(__x86_64__)
+# define __NR_epoll_ctl 233 /* used to be 214 */
+# elif defined(__i386__)
+# define __NR_epoll_ctl 255
+# elif defined(__arm__)
+# define __NR_epoll_ctl (UV_SYSCALL_BASE + 251)
+# endif
+#endif /* __NR_epoll_ctl */
+
+#ifndef __NR_epoll_wait
+# if defined(__x86_64__)
+# define __NR_epoll_wait 232 /* used to be 215 */
+# elif defined(__i386__)
+# define __NR_epoll_wait 256
+# elif defined(__arm__)
+# define __NR_epoll_wait (UV_SYSCALL_BASE + 252)
+# endif
+#endif /* __NR_epoll_wait */
+
+#ifndef __NR_epoll_pwait
+# if defined(__x86_64__)
+# define __NR_epoll_pwait 281
+# elif defined(__i386__)
+# define __NR_epoll_pwait 319
+# elif defined(__arm__)
+# define __NR_epoll_pwait (UV_SYSCALL_BASE + 346)
+# endif
+#endif /* __NR_epoll_pwait */
+
+#ifndef __NR_inotify_init
+# if defined(__x86_64__)
+# define __NR_inotify_init 253
+# elif defined(__i386__)
+# define __NR_inotify_init 291
+# elif defined(__arm__)
+# define __NR_inotify_init (UV_SYSCALL_BASE + 316)
+# endif
+#endif /* __NR_inotify_init */
+
+#ifndef __NR_inotify_init1
+# if defined(__x86_64__)
+# define __NR_inotify_init1 294
+# elif defined(__i386__)
+# define __NR_inotify_init1 332
+# elif defined(__arm__)
+# define __NR_inotify_init1 (UV_SYSCALL_BASE + 360)
+# endif
+#endif /* __NR_inotify_init1 */
+
+#ifndef __NR_inotify_add_watch
+# if defined(__x86_64__)
+# define __NR_inotify_add_watch 254
+# elif defined(__i386__)
+# define __NR_inotify_add_watch 292
+# elif defined(__arm__)
+# define __NR_inotify_add_watch (UV_SYSCALL_BASE + 317)
+# endif
+#endif /* __NR_inotify_add_watch */
+
+#ifndef __NR_inotify_rm_watch
+# if defined(__x86_64__)
+# define __NR_inotify_rm_watch 255
+# elif defined(__i386__)
+# define __NR_inotify_rm_watch 293
+# elif defined(__arm__)
+# define __NR_inotify_rm_watch (UV_SYSCALL_BASE + 318)
+# endif
+#endif /* __NR_inotify_rm_watch */
+
+#ifndef __NR_pipe2
+# if defined(__x86_64__)
+# define __NR_pipe2 293
+# elif defined(__i386__)
+# define __NR_pipe2 331
+# elif defined(__arm__)
+# define __NR_pipe2 (UV_SYSCALL_BASE + 359)
+# endif
+#endif /* __NR_pipe2 */
+
+#ifndef __NR_recvmmsg
+# if defined(__x86_64__)
+# define __NR_recvmmsg 299
+# elif defined(__i386__)
+# define __NR_recvmmsg 337
+# elif defined(__arm__)
+# define __NR_recvmmsg (UV_SYSCALL_BASE + 365)
+# endif
+#endif /* __NR_recvmsg */
+
+#ifndef __NR_sendmmsg
+# if defined(__x86_64__)
+# define __NR_sendmmsg 307
+# elif defined(__i386__)
+# define __NR_sendmmsg 345
+# elif defined(__arm__)
+# define __NR_sendmmsg (UV_SYSCALL_BASE + 374)
+# endif
+#endif /* __NR_sendmmsg */
+
+#ifndef __NR_utimensat
+# if defined(__x86_64__)
+# define __NR_utimensat 280
+# elif defined(__i386__)
+# define __NR_utimensat 320
+# elif defined(__arm__)
+# define __NR_utimensat (UV_SYSCALL_BASE + 348)
+# endif
+#endif /* __NR_utimensat */
+
+
+int uv__accept4(int fd, struct sockaddr* addr, socklen_t* addrlen, int flags) {
+#if defined(__i386__)
+ unsigned long args[4];
+ int r;
+
+ args[0] = (unsigned long) fd;
+ args[1] = (unsigned long) addr;
+ args[2] = (unsigned long) addrlen;
+ args[3] = (unsigned long) flags;
+
+ r = syscall(__NR_socketcall, 18 /* SYS_ACCEPT4 */, args);
+
+ /* socketcall() raises EINVAL when SYS_ACCEPT4 is not supported but so does
+ * a bad flags argument. Try to distinguish between the two cases.
+ */
+ if (r == -1)
+ if (errno == EINVAL)
+ if ((flags & ~(UV__SOCK_CLOEXEC|UV__SOCK_NONBLOCK)) == 0)
+ errno = ENOSYS;
+
+ return r;
+#elif defined(__NR_accept4)
+ return syscall(__NR_accept4, fd, addr, addrlen, flags);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__eventfd(unsigned int count) {
+#if defined(__NR_eventfd)
+ return syscall(__NR_eventfd, count);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__eventfd2(unsigned int count, int flags) {
+#if defined(__NR_eventfd2)
+ return syscall(__NR_eventfd2, count, flags);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__epoll_create(int size) {
+#if defined(__NR_epoll_create)
+ return syscall(__NR_epoll_create, size);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__epoll_create1(int flags) {
+#if defined(__NR_epoll_create1)
+ return syscall(__NR_epoll_create1, flags);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__epoll_ctl(int epfd, int op, int fd, struct uv__epoll_event* events) {
+#if defined(__NR_epoll_ctl)
+ return syscall(__NR_epoll_ctl, epfd, op, fd, events);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__epoll_wait(int epfd,
+ struct uv__epoll_event* events,
+ int nevents,
+ int timeout) {
+#if defined(__NR_epoll_wait)
+ return syscall(__NR_epoll_wait, epfd, events, nevents, timeout);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__epoll_pwait(int epfd,
+ struct uv__epoll_event* events,
+ int nevents,
+ int timeout,
+ const sigset_t* sigmask) {
+#if defined(__NR_epoll_pwait)
+ return syscall(__NR_epoll_pwait,
+ epfd,
+ events,
+ nevents,
+ timeout,
+ sigmask,
+ sizeof(*sigmask));
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__inotify_init(void) {
+#if defined(__NR_inotify_init)
+ return syscall(__NR_inotify_init);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__inotify_init1(int flags) {
+#if defined(__NR_inotify_init1)
+ return syscall(__NR_inotify_init1, flags);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__inotify_add_watch(int fd, const char* path, uint32_t mask) {
+#if defined(__NR_inotify_add_watch)
+ return syscall(__NR_inotify_add_watch, fd, path, mask);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__inotify_rm_watch(int fd, int32_t wd) {
+#if defined(__NR_inotify_rm_watch)
+ return syscall(__NR_inotify_rm_watch, fd, wd);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__pipe2(int pipefd[2], int flags) {
+#if defined(__NR_pipe2)
+ return syscall(__NR_pipe2, pipefd, flags);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__sendmmsg(int fd,
+ struct uv__mmsghdr* mmsg,
+ unsigned int vlen,
+ unsigned int flags) {
+#if defined(__NR_sendmmsg)
+ return syscall(__NR_sendmmsg, fd, mmsg, vlen, flags);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__recvmmsg(int fd,
+ struct uv__mmsghdr* mmsg,
+ unsigned int vlen,
+ unsigned int flags,
+ struct timespec* timeout) {
+#if defined(__NR_recvmmsg)
+ return syscall(__NR_recvmmsg, fd, mmsg, vlen, flags, timeout);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}
+
+
+int uv__utimesat(int dirfd,
+ const char* path,
+ const struct timespec times[2],
+ int flags)
+{
+#if defined(__NR_utimensat)
+ return syscall(__NR_utimensat, dirfd, path, times, flags);
+#else
+ return errno = ENOSYS, -1;
+#endif
+}