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/* 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.
*/
#ifndef UV_UNIX_INTERNAL_H_
#define UV_UNIX_INTERNAL_H_
#include "uv-common.h"
#include "uv-eio.h"
#include <assert.h>
#include <stdlib.h> /* abort */
#include <stddef.h> /* offsetof */
#if __STRICT_ANSI__
# define inline __inline
#endif
#undef HAVE_FUTIMES
#undef HAVE_KQUEUE
#undef HAVE_PORTS_FS
#if defined(__linux__)
# undef HAVE_SYS_UTIMESAT
# undef HAVE_SYS_PIPE2
# undef HAVE_SYS_ACCEPT4
# undef _GNU_SOURCE
# define _GNU_SOURCE
# include <linux/version.h>
# include <sys/syscall.h>
# include <features.h>
# include <unistd.h>
# if __NR_utimensat
# define HAVE_SYS_UTIMESAT 1
# endif
# if __NR_pipe2
# define HAVE_SYS_PIPE2 1
# endif
# if __NR_accept4
# define HAVE_SYS_ACCEPT4 1
# endif
# ifndef O_CLOEXEC
# define O_CLOEXEC 02000000
# endif
# ifndef SOCK_CLOEXEC
# define SOCK_CLOEXEC O_CLOEXEC
# endif
# ifndef SOCK_NONBLOCK
# define SOCK_NONBLOCK O_NONBLOCK
# endif
# if HAVE_SYS_UTIMESAT
inline static int sys_utimesat(int dirfd,
const char* path,
const struct timespec times[2],
int flags)
{
return syscall(__NR_utimensat, dirfd, path, times, flags);
}
inline static int sys_futimes(int fd, const struct timeval times[2])
{
struct timespec ts[2];
ts[0].tv_sec = times[0].tv_sec, ts[0].tv_nsec = times[0].tv_usec * 1000;
ts[1].tv_sec = times[1].tv_sec, ts[1].tv_nsec = times[1].tv_usec * 1000;
return sys_utimesat(fd, NULL, ts, 0);
}
# undef HAVE_FUTIMES
# define HAVE_FUTIMES 1
# define futimes(fd, times) sys_futimes(fd, times)
# endif /* HAVE_SYS_FUTIMESAT */
# if HAVE_SYS_PIPE2
inline static int sys_pipe2(int pipefd[2], int flags)
{
return syscall(__NR_pipe2, pipefd, flags);
}
# endif /* HAVE_SYS_PIPE2 */
# if HAVE_SYS_ACCEPT4
inline static int sys_accept4(int fd,
struct sockaddr* addr,
socklen_t* addrlen,
int flags)
{
return syscall(__NR_accept4, fd, addr, addrlen, flags);
}
# endif /* HAVE_SYS_ACCEPT4 */
#endif /* __linux__ */
#if defined(__sun)
# include <sys/port.h>
# include <port.h>
# ifdef PORT_SOURCE_FILE
# define HAVE_PORTS_FS 1
# endif
#endif /* __sun */
#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun)
# define HAVE_FUTIMES 1
#endif
/* FIXME exact copy of the #ifdef guard in uv-unix.h */
#if defined(__APPLE__) \
|| defined(__FreeBSD__) \
|| defined(__OpenBSD__) \
|| defined(__NetBSD__)
# define HAVE_KQUEUE 1
#endif
#define container_of(ptr, type, member) \
((type *) ((char *) (ptr) - offsetof(type, member)))
#define UNREACHABLE() \
do { \
assert(0 && "unreachable code"); \
abort(); \
} \
while (0)
#define SAVE_ERRNO(block) \
do { \
int _saved_errno = errno; \
do { block; } while (0); \
errno = _saved_errno; \
} \
while (0)
/* flags */
enum {
UV_CLOSING = 0x01, /* uv_close() called but not finished. */
UV_CLOSED = 0x02, /* close(2) finished. */
UV_READING = 0x04, /* uv_read_start() called. */
UV_SHUTTING = 0x08, /* uv_shutdown() called but not complete. */
UV_SHUT = 0x10, /* Write side closed. */
UV_READABLE = 0x20, /* The stream is readable */
UV_WRITABLE = 0x40, /* The stream is writable */
UV_TCP_NODELAY = 0x080, /* Disable Nagle. */
UV_TCP_KEEPALIVE = 0x100, /* Turn on keep-alive. */
UV_TIMER_ACTIVE = 0x080,
UV_TIMER_REPEAT = 0x100
};
/* core */
void uv__handle_init(uv_loop_t* loop, uv_handle_t* handle, uv_handle_type type);
int uv__nonblock(int fd, int set) __attribute__((unused));
int uv__cloexec(int fd, int set) __attribute__((unused));
int uv__socket(int domain, int type, int protocol);
int uv__dup(int fd);
/* error */
uv_err_code uv_translate_sys_error(int sys_errno);
void uv_fatal_error(const int errorno, const char* syscall);
/* requests */
void uv__req_init(uv_loop_t* loop, uv_req_t*);
/* stream */
void uv__stream_init(uv_loop_t* loop, uv_stream_t* stream,
uv_handle_type type);
int uv__stream_open(uv_stream_t*, int fd, int flags);
void uv__stream_destroy(uv_stream_t* stream);
void uv__stream_io(EV_P_ ev_io* watcher, int revents);
void uv__server_io(EV_P_ ev_io* watcher, int revents);
int uv__accept(int sockfd, struct sockaddr* saddr, socklen_t len);
int uv__connect(uv_connect_t* req, uv_stream_t* stream, struct sockaddr* addr,
socklen_t addrlen, uv_connect_cb cb);
/* tcp */
int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb);
int uv__tcp_nodelay(uv_tcp_t* handle, int enable);
int uv__tcp_keepalive(uv_tcp_t* handle, int enable, unsigned int delay);
/* pipe */
int uv_pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb);
void uv__pipe_accept(EV_P_ ev_io* watcher, int revents);
int uv_pipe_cleanup(uv_pipe_t* handle);
/* udp */
void uv__udp_start_close(uv_udp_t* handle);
void uv__udp_finish_close(uv_udp_t* handle);
/* fs */
void uv__fs_event_destroy(uv_fs_event_t* handle);
#define UV__F_IPC (1 << 0)
#define UV__F_NONBLOCK (1 << 1)
int uv__make_socketpair(int fds[2], int flags);
int uv__make_pipe(int fds[2], int flags);
#if __linux__
void uv__inotify_loop_init(uv_loop_t* loop);
void uv__inotify_loop_delete(uv_loop_t* loop);
# define uv__loop_platform_init(loop) uv__inotify_loop_init(loop)
# define uv__loop_platform_delete(loop) uv__inotify_loop_delete(loop)
#else
# define uv__loop_platform_init(loop)
# define uv__loop_platform_delete(loop)
#endif
#endif /* UV_UNIX_INTERNAL_H_ */
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