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Line 23:
Line 23: + + + + + + + + − # Some actions can only be done only after file is created, served out and moved to proper position. E.g. epoll configuration and scheduling TCP repair off. − # Slave TTYs can only be restored after respective master peers. − # CTTYs should be __created__ after all other TTYs are created, configured and served out.
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*1)bind(<peer name>);
*1)bind(<peer name>);
*2)set_fds_event(<socket pid>);
*2)set_fds_event(<socket pid>);
= Dependencies =
# Slave TTY can only be created after respective master peer are restored. But now we wait even more -- till all masters are restored.
# CTTY must be created after all other TTYs are restored. For all tty dependencies see tty_deps_restored() for the details.
# Epoll can be created in any time, but it can add a fd in its polling list, after the corresponding fle is completely restored. The only exception is a epoll listening other epoll. In this case we wait till listened fle is just created (not restored). See epoll_not_ready_tfd().
# Unix socket must wait a peer before connect to it. See peer_is_not_prepared() for the details.
# TCP sockets have a counter on address use.
# Implementing a new relationships between fle stages, check, that you are not introducing a circular dependence (with existing).
= Notes =
= Notes =
# Pipes (and fifos), unix sockets and TTYs generate two fds in their ->open callbacls, the 2nd one can conflict with some other fd the task restores and (!) this "2nd one" may require sending to some other task.
# Pipes (and fifos), unix sockets and TTYs generate two fds in their ->open callbacls, the 2nd one can conflict with some other fd the task restores and (!) this "2nd one" may require sending to some other task.
[[Category:Under the hood]]
[[Category:Under the hood]]
[[Category:Files]]
[[Category:Files]]