336d475d13
This patch adds a possibility to invert most of available options by
introducing the "no" keyword, available as an additional prefix.
If it is found arguments are shifted left and an additional flag (inv)
is set.
It allows to use all options from a current defaults section, except
the selected ones, for example:
-- cut here --
defaults
contimeout 4200
clitimeout 50000
srvtimeout 40000
option contstats
listen stats 1.2.3.4:80
no option contstats
-- cut here --
Currenly inversion works only with the "option" keyword.
The patch also moves last_checks calculation at the end of the readcfgfile()
function and changes "PR_O_FORCE_CLO | PR_O_HTTP_CLOSE" into "PR_O_FORCE_CLO"
in cfg_opts so it is possible to invert forceclose without breaking httpclose
(and vice versa) and to invert tcpsplice in one proxy but to keep a proper
last_checks value when tcpsplice is used in another proxy. Now, the code
checks for PR_O_FORCE_CLO everywhere it checks for PR_O_HTTP_CLOSE.
I also decided to depreciate "redisp" and "redispatch" keywords as it is IMHO
better to use "option redispatch" which can be inverted.
Some useful documentation were added and at the same time I sorted
(alfabetically) all valid options both in the code and the documentation.
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