| Commit message (Collapse) | Author | Age |
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This sets the kqueue events to autoclear, reducing CPU usage to normal
sane levels, and eliminating the hard spin.
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fixes #573 atomic flags could help
This introduces a new atomic flag, and reduces some of the global
locking. The lock refactoring work is not yet complete, but this is
a positive step forward, and should help with certain things.
While here we also fixed a compile warning due to incorrect types.
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fixes #565 Option getting should validate sizes more aggressively
fixes #563 Reconnect timeouts should be settable on dialers
fixes #562 pipe test is fragile
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a missing return causes ipc and inproc URLs to be parsed as usual. Results in a memory leak.
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This separates the plumbing for endpoints into distinct
dialer and listeners. Some of the transports could benefit
from further separation, but we've done some rather larger
separation e.g. for the websocket transport.
IPC would be a good one to update later, when we start looking
at exposing a more natural underlying API.
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fixes #538 setopt should have an explicit chkopt routine
fixes #537 Internal TCP API needs better name separation
fixes #524 Option types should be "typed"
This is a rework of the option management code, to make it both clearer
and to prepare for further work to break up endpoints. This reduces
a certain amount of dead or redundant code, and actually saves cycles
when setting options, as some loops were not terminated that should have
been.
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This changes nni_aio_begin so that it immediately terminates when
it encounters aio->a_closed, much like it does for aio->a_stop.
The semantic for nni_aio_close() is supposed to be like nni_aio_stop(),
but without blocking.
I suspect that this might be responsible for use-after-free bugs that
seem to have been rearing their head lately.
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This should work on both Windows and the most common POSIX
variants. We will create at least two threads for running
completions, but there are numerous other threads in the code.
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Essentially, if we're destroying an aio, and we are doing so from the
thread that is running the callback, then we should defer the destruction
of the task until it returns.
Note that calling nni_aio_wait() or anything else that calls it from
the callback is still verboten and will result in a single party
deadlock.
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This special cases the URL parser for inproc and IPC urls,
changing so that they no longer parse the thing after the ://
as anything special. This allows IPC URLs to be relative.
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This recycles the job structures, and so the demo seems
to work. If you have sufficient concurrency, these aio
structures will ultimately leak (with the level of concurrency),
but for this demo that's fine. (To keep them from leaking, you'd
walk the freelist and discard them just before exiting. The
actual growth of the list should be quite small.) There are
other strategies that could be used to avoid uncontrolled growth,
but they aren't useful for our demo purposes. Also, when we have
a fix for 511, we can go ahead and just do a deferred discard.
As aios are used *heavily* in the code, the strategy of a deferred
cache may help reduce presssure on the heap, andd might be something
we want to explore for the core.
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This avoids copying the tests, but runs them with bash from
the source directory, and passes the path to the built nngcat
binary to the script.
It also permits these to run if we find bash, so that systems
without bash won't run it and fail.
We still only do this on POSIX though, because Windows bash
is too broken to use for some of the tests.
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These were found with the help of "aspell".
Additionally, while reviewing the output from the spell checker,
several content errors were noticed and fixed.
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This enables the software to be built for Android, going back to
at least Android SDK r15 (IceCreamSandwich) and at least up to
SDK r27 (Oreo). Older versions of Android may work, but we have
no way to build them to test.
While here we have changed our CMake configuration to disable
building tools or tests when we detect a cross-compile situation.
Documentation for cross-compilation is updated as well.
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fixes #494 ERRORS section should use [horizontal]
These changes address some basic formatting consistency things,
and ultimately (when combined with other tooling changes that are
not part of this repo) lead to vastly improved layout in the
printed documentation.
While here we removed trailing whitespace, and did certain other
minor markup tweaks.
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fixes #490 posix_epdesc use-after-free bug
fixes #489 Sanitizer based testing would help
fixes #492 Numerous memory leaks found with sanitizer
This introduces support for compiler-based sanitizers when using
clang or gcc (and not on Windows). See NNG_SANITIZER for possible
settings such as "thread" or "address".
Furthermore, we have fixed the issues we found with both the
thread and address sanitizers. We believe that the thread issues
pointed to a low frequency use-after-free responsible for rare
crashes in some of the tests.
The tests generally have their timeouts doubled when running under
a sanitizer, to account for the extra long times that the sanitizer
can cause these to take.
While here, we also changed the compat_ws test to avoid a particularly
painful and time consuming DNS lookup, and we made the nngcat_unlimited
test a bit more robust by waiting before sending traffic.
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The test itself is not sanitizer friendly, and we don't need to do
this meta testing; convey already does it in it's own repo.
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The fallback logic was unnecessarily complicated, and found to be
somewhat data-racy; on modern systems initializing these things
never fails, and on BSD systems that only occurs under extreme
memory shortage.
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fixes #485 Honor BUILD_SHARED_LIBS
fixes #483 Don't expose private symbols in shared library
fixes #481 Export CMake target
This is a "large" commit involving changes that don't affect the
code directly, but which have an impact on how we package and build
our project.
The most significant of these changes is that we now build only
either a shared or a static library, depending on the setting of
the BUILD_SHARED_LIBS option. We also suppress private symbols
from being exposed when the underlying toolchain lets us do so.
Minor updates to the way we version the ABI are used, and we now
have a nice exported CMake project.
To import this project in another, simply do find_package(nng)
and you can add target_link_libraries(nng::nng) to your targets.
CMake does the rest for you.
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fixes #464 Support NN_WS_MSG_TYPE option (compat)
fixes #415 websocket does not honor recv maxsize
This fixes a significant (and security) issue in websocket, where the
code does not honor a maximum receive size. We've exposed new API
(internal) to set the limit on the frame size, and we've changed the
default to *unlimited* for that internal API. (But the default for SP
sockets, which are the only consumers at present, is still 1MB just like
all other SP transports.)
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fixes #468 TCP nodelay and keepalive should start usable
fixes #467 NN_RCVMAXSZ option does not work (compat)
fixes #465 Support NN_OPT_TCPNODELAY (compat)
This is a rather larger change set than I'd like, but when adding
support for legacy TCP keepalive, I found a number if issues using
the legacy TCP test (which we are introducing with this commit.)
This fixes the concerns that are relevant and addressible.
We have elected not to try to support to local address binding at this
time, and the IPv6 test case in the old code was wrong, so changes
relevant to that are commented out.
I've also updated the nng_compat manual page to reflect additional
caveats that folks should be aware of, including the previously
undocumented caveat around the NN_SNDBUF and NN_RCVBUF options.
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