| Commit message (Collapse) | Author | Age |
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Applications which may not even be using TLS should not have to
know about the TLS configuration structure.
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This technically doesn't need the lock, as we're only trying to catch
a possible problem during development rather than in the field (and
this should never occur), but the false positive in valgrind obscures
other possible errors, so leave it in the lock.
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Turns out that shutdown is sufficient for most needs.
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This provides context support for REQ and REP sockets.
More discussion around this is in the issue itself.
Optionally we would like to extend this to the surveyor pattern.
Note that we specifically do not support pollable descriptors
for non-default contexts, and the results of using file descriptors
for polling (NNG_OPT_SENDFD and NNG_OPT_RECVFD) is undefined.
In the future, it might be nice to figure out how to factor in
optional use of a message queue for users who want more buffering,
but we think there is little need for this with cooked mode.
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This makes the raw mode something that is immutable, determined
at socket construction. This is an enabling change for the
separate context support coming soon.
As a result, this is an API breaking change for users of the raw
mode option (NNG_OPT_RAW). There aren't many of them out there.
Cooked mode is entirely unaffected.
There are changes to tests and documentation included.
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fixes #325 synchronous aio completion crash
fixes #327 move nni_clock() operations to outside the nni_aio_lk.
This work was done for the context tree, and is necessary to properly
enable that branch.
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This uses numeric identifiers and an idhash table to make sure that
the values we get back are still use.
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This also gives a performance benefit to WebSocket, by making
the completion logic run synchronously.
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fixes #22 Consider using synchronous completions sometimes
Transport improvements for IPC, TCP, and TLS.
This change does three things.
First it permits multiple outstanding receives or sends on the transport.
This change is being made to accomodate some other changes in the protocols
where it might be advantageous to post send or receives directly against
the transport pipe without going through another level of indirection.
Second, it changes the normal completions to be performed synchronously.
This translates into a rather major performance improvement, reducing
latency by some 27%, and thereby improving performance altogether. (This
elminates two extra context switches per transaction!)
FInally, we can save some extra checks and conditions because we know
that completions cannot happen if we don't have a pending operation
(we no longer complete out of sequence), and we only call the dosend
operation when we have something to send. This can eliminate some
pipeline stalls.
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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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fixes #302 nng_dialer/listener/pipe_getopt_sockaddr desired
This adds plumbing to pass and check the type of options
all the way through.
NNG_ZT_OPT_ORBIT is type UINT64, but you can use the untyped form to
pass two of them if needed.
No typed access for retrieving strings yet. I think this should allocate
a pointer and copy that out, but that's for later.
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on a python wrapper (cffi).
Mostly this is fixing inconsistencies in our public API and the actual
implementation.
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fixes #275 nng_pipe_getopt_ptr() missing?
fixes #285 nng_setopt_ptr MIS
fixes #297 nng_listener/dialer_close does not validate mode
This change adds some missing APIs, and changes others.
In particular, certain options are now of type bool, with size
of just one. This is a *breaking* change for code that uses those
options -- NNG_OPT_RAW, NNG_OPT_PAIR1_POLY, NNG_OPT_TLS_VERIFIED.
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While here we documented that certain options are not supported in the
compatibility layer.
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fixes #33
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fixes #290 sockaddr improvements
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The first problem was that using nng_sleep_aio
was found to reset the timeout, and this caused subsequent
operations to start failing with timeouts when reusing
the AIO for other operations.
The second thing is that we think it would be nicer if the
presence of real aio timeouts were still honored, so that
if the timeout is shorter than the sleep time, then we get
back an NNG_ETIMEDOUT like every other operation, and we
get back a 0 if the logical sleep operation completes
normally.
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This does a few things. First it closes a case where a dropped
message could prevent subsequent connection attempts from getting through.
Second, it changes the rate at which we retry, and the timeout, to be
a lot more aggressive when attempting to establish a connection. We
retry every 500 ms, for up to 2 minutes, before giving up. This gives
a lot more resilience in the face of message loss that is typical of
ZeroTier in some environments when first establishing communication.
Third, makes the values for the connection attempts *tunable*, so
that applications can adjust for different deployment scenarios.
Fourth, it includes the ability to get the UDP socket name. This was
needed during some debug, and may be useful for a real UDP transport
later, so we're keeping it.
Finally, we added documentation for the above items.
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fixes #267 zerotier transport should lock ZT_HOME
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The dev branch changed, and the timestamps are signed. (They
are also passed around using volatiles -- probably incorrectly
so, but that is not important for us, the compiler understands
that volatile is meaningless when passing values by value.)
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The primary ZeroTier RFC is in the "rfcs" repository for nanomsg,
and we should remove this one because it is stale and misleading.
Also, the URI format is incorrect in the header so fix that, and
point to the real ZeroTier RFC.
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This causes TCP, TLS, and ZT endpoints to resolve any
wildcards, and even IP addresses, when reporting the listen
URL. The dialer URL is reported unresolved. Test cases
for this are added as well, and nngcat actually reports this
if --verbose is supplied.
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We only add a basic --version (also -V). I'm still trying to figure
out how to convince cmake to emit its compilation flags into a file
where we can use them for output.
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While here we also fixed a bug in the --file handling that we noticed
while writing the TLS handling.
We also fixed a warning in the core (msgqueue) for set but unused variables.
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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 changed the timers to use msec granularity, but we missed this
one. The result is that in certain code flows the IPC connection
times can look quite long -- with weird 10 sec stalls.
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ConnectNamedPipe can return ERROR_PIPE_CONNECTED, and does not
enqueue a completion packet if it does. So we need to handle
that specially.
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Basically, we have moved the compat stuff into a separate directory.
Compatibility layer users will have to update their compile flags, but
should be able to avoid changing any *source* files with this change.
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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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