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This is a full rewrite of the "back end" logging code. It now uses a
lock-free list to iterate over logging targets, and the targets
themselves are as lock-free as possible. (syslog() may have a hidden
internal mutex in the C library; the file/fd targets use a single
write() call which should ensure atomicity kernel-side.)
Note that some functionality is lost in this patch:
- Solaris printstack() backtraces are ditched (unlikely to come back)
- the `log-filter` machinery is gone (re-added in followup commit)
- `terminal monitor` is temporarily stubbed out. The old code had a
race condition with VTYs going away. It'll likely come back rewritten
and with vtysh support.
- The `zebra_ext_log` hook is gone. Instead, it's now much easier to
add a "proper" logging target.
v2: TLS buffer to get some actual performance
Signed-off-by: David Lamparter <equinox@diac24.net>
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clippy can't process #ifdef or similar bits inside of an argument list
(e.g. within the braces of a DEFUN or DEFPY statement.) Improve error
reporting to catch these cases instead of generating broken C code.
Fixes: #3840
Signed-off-by: David Lamparter <equinox@diac24.net>
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Signed-off-by: F. Aragon <paco@voltanet.io>
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indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'`
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Wraps the command parsing code for Python, so we can use it to do fancy
preprocessing and replace extract.pl.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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