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                           int mode,
                           uv_fs_cb cb);
UV_EXTERN int uv_fs_chmod(uv_loop_t* loop,
                          uv_fs_t* req,
                          const char* path,
                          int mode,
                          uv_fs_cb cb);
UV_EXTERN int uv_fs_utime(uv_loop_t* loop,
                          uv_fs_t* req,
                          const char* path,
                          double atime,
                          double mtime,
                          uv_fs_cb cb);
UV_EXTERN int uv_fs_futime(uv_loop_t* loop,
                           uv_fs_t* req,
                           uv_file file,
                           double atime,
                           double mtime,
                           uv_fs_cb cb);
UV_EXTERN int uv_fs_lstat(uv_loop_t* loop,
                          uv_fs_t* req,
                          const char* path,
                          uv_fs_cb cb);
UV_EXTERN int uv_fs_link(uv_loop_t* loop,
                         uv_fs_t* req,
                         const char* path,
                         const char* new_path,
                         uv_fs_cb cb);

/*
 * This flag can be used with uv_fs_symlink() on Windows to specify whether
 * path argument points to a directory.
 */
#define UV_FS_SYMLINK_DIR          0x0001

/*
 * This flag can be used with uv_fs_symlink() on Windows to specify whether
 * the symlink is to be created using junction points.
 */
#define UV_FS_SYMLINK_JUNCTION     0x0002

UV_EXTERN int uv_fs_symlink(uv_loop_t* loop,
                            uv_fs_t* req,
                            const char* path,
                            const char* new_path,
                            int flags,
                            uv_fs_cb cb);
UV_EXTERN int uv_fs_readlink(uv_loop_t* loop,
                             uv_fs_t* req,
                             const char* path,
                             uv_fs_cb cb);
UV_EXTERN int uv_fs_realpath(uv_loop_t* loop,
                             uv_fs_t* req,
                             const char* path,
                             uv_fs_cb cb);
UV_EXTERN int uv_fs_fchmod(uv_loop_t* loop,
                           uv_fs_t* req,
                           uv_file file,
                           int mode,
                           uv_fs_cb cb);
UV_EXTERN int uv_fs_chown(uv_loop_t* loop,
                          uv_fs_t* req,
                          const char* path,
                          uv_uid_t uid,
                          uv_gid_t gid,
                          uv_fs_cb cb);
UV_EXTERN int uv_fs_fchown(uv_loop_t* loop,
                           uv_fs_t* req,
                           uv_file file,
                           uv_uid_t uid,
                           uv_gid_t gid,
                           uv_fs_cb cb);
UV_EXTERN int uv_fs_lchown(uv_loop_t* loop,
                           uv_fs_t* req,
                           const char* path,
                           uv_uid_t uid,
                           uv_gid_t gid,
                           uv_fs_cb cb);


enum uv_fs_event {
  UV_RENAME = 1,
  UV_CHANGE = 2
};


struct uv_fs_event_s {
  UV_HANDLE_FIELDS
  /* private */
  char* path;
  UV_FS_EVENT_PRIVATE_FIELDS
};


/*
 * uv_fs_stat() based polling file watcher.
 */
struct uv_fs_poll_s {
  UV_HANDLE_FIELDS
  /* Private, don't touch. */
  void* poll_ctx;
};

UV_EXTERN int uv_fs_poll_init(uv_loop_t* loop, uv_fs_poll_t* handle);
UV_EXTERN int uv_fs_poll_start(uv_fs_poll_t* handle,
                               uv_fs_poll_cb poll_cb,
                               const char* path,
                               unsigned int interval);
UV_EXTERN int uv_fs_poll_stop(uv_fs_poll_t* handle);
UV_EXTERN int uv_fs_poll_getpath(uv_fs_poll_t* handle,
                                 char* buffer,
                                 size_t* size);


struct uv_signal_s {
  UV_HANDLE_FIELDS
  uv_signal_cb signal_cb;
  int signum;
  UV_SIGNAL_PRIVATE_FIELDS
};

UV_EXTERN int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle);
UV_EXTERN int uv_signal_start(uv_signal_t* handle,
                              uv_signal_cb signal_cb,
                              int signum);
UV_EXTERN int uv_signal_start_oneshot(uv_signal_t* handle,
                                      uv_signal_cb signal_cb,
                                      int signum);
UV_EXTERN int uv_signal_stop(uv_signal_t* handle);

UV_EXTERN void uv_loadavg(double avg[3]);