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This includes platform portability stuff like mutexes and threads,
etc. While here we fixed a problem with nng_opts_parse and we
addressed the type of the platform API.
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This is intended to provide compatibility with, and has been tested
against, legacy nanocat. There are a few differences though.
At this time support for the alias names (where argv[0] is set to
something like nngreq or somesuch) is missing.
By default this library operations without NNG_FLAG_NONBLOCK on
dial and listen, so that failures here are immediately diagnosable.
(This behavior can be changed with the --async flag.)
By default --pair means PAIRv1, but you can specify --pair0
or --pair1 explicitly. (There is also a --compat mode, and in
that mode --pair means PAIRv0. The --compat mode also turns on
NNG_FLAG_NONBLOCK by default.)
The "quoted" mode also quotes tabs. (Legacy nanocat did not.)
It is possible to connect to *multiple* peers by using the --dial
or --listen (or similar) options multiple times.
Shorthands can be used for long options that are not ambiguous. For
example, --surv can be used to mean surveyor, but --re is invalid because
it can mean req, rep, or respondent.
We assume you have a reasonable standard C environment. This won't work
in embedded environments without support for FILE *.
TLS options are missing but to be added soon.
A man page is still to be written.
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We have implemented this alternative to getopt() so that we can
create nngcat. The reason we did not just use getopt() is that
getopt() does not understand long options (which nanocat uses, and
we want to preserve for compatibility) and getopt() is not available
on Windows (and possibly other non-POSIX platforms.)
This function handles long and short options, but does not have support
for option clustering. It also is threadsafe & reentrant, unlike getopt.
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These are incremental updates... we avoid using install() in the
subdirectories, so that we can adapt properly to them in the
single parent directory.
We have started some of the work to improve support for CPack. This
is still not yet done, but work in progress.
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This introduces portable primitives for time, random numbers,
synchronization primitives, and threading. These are somewhat
primitive (least common denominiators), but they can help with writing
portable applications, especially our own demo apps.
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