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internal.h
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internal.h
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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 <stddef.h> /* offsetof */
#if defined(__linux__)
#include <linux/version.h>
#include <features.h>
/* futimes() requires linux >= 2.6.22 and glib >= 2.6 */
#if LINUX_VERSION_CODE >= 0x20616 && __GLIBC_PREREQ(2, 6)
#define HAVE_FUTIMES 1
#endif
/* pipe2() requires linux >= 2.6.27 and glibc >= 2.9 */
#if LINUX_VERSION_CODE >= 0x2061B && __GLIBC_PREREQ(2, 9)
#define HAVE_PIPE2 1
#endif
/* accept4() requires linux >= 2.6.28 and glib >= 2.10 */
#if LINUX_VERSION_CODE >= 0x2061C && __GLIBC_PREREQ(2, 10)
#define HAVE_ACCEPT4 1
#endif
#endif /* __linux__ */
#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(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1060) \
|| defined(__FreeBSD__) \
|| defined(__OpenBSD__) \
|| defined(__NetBSD__)
# define HAVE_KQUEUE 1
#endif
#define container_of(ptr, type, member) \
((type *) ((char *) (ptr) - offsetof(type, member)))
#define SAVE_ERRNO(block) \
do { \
int _saved_errno = errno; \
do { block; } while (0); \
errno = _saved_errno; \
} \
while (0);
/* flags */
enum {
UV_CLOSING = 0x00000001, /* uv_close() called but not finished. */
UV_CLOSED = 0x00000002, /* close(2) finished. */
UV_READING = 0x00000004, /* uv_read_start() called. */
UV_SHUTTING = 0x00000008, /* uv_shutdown() called but not complete. */
UV_SHUT = 0x00000010, /* Write side closed. */
UV_READABLE = 0x00000020, /* The stream is readable */
UV_WRITABLE = 0x00000040 /* The stream is writable */
};
size_t uv__strlcpy(char* dst, const char* src, size_t size);
int uv__close(int fd);
void uv__req_init(uv_req_t*);
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);
/* error */
uv_err_code uv_translate_sys_error(int sys_errno);
void uv_fatal_error(const int errorno, const char* syscall);
/* 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);
/* 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_destroy(uv_udp_t* handle);
void uv__udp_watcher_stop(uv_udp_t* handle, ev_io* w);
/* fs */
void uv__fs_event_destroy(uv_fs_event_t* handle);
#endif /* UV_UNIX_INTERNAL_H_ */