| Commit message (Collapse) | Author | Age |
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These functions can no longer fail.
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This is going to be used to facilitate debugging, and eliminate some
inconveniences around these things. We plan to move the pipe functions
to use these directly, hopefully moving away from the pipe_getopt hack.
(The transport API will need to grow these. For now this is just the
streams.)
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This is part of our work to improve type safety/awareness, and also
improve debugger support, for NNG error codes. There are still quite
a few more but this should help.
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This avoids the need to perform multiple allocations for dialing,
eliminating additional potential failures. Cancellation is also
made simpler and more perfectly robust.
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This allows us to explicitly stop streams, dialers, and listeners,
before we start tearing down things. This hopefully will be useful
in resolving use-after-free bugs in http, tls, and websockets.
The new functions are not yet documented, but they are
nng_stream_stop, nng_stream_dialer_stop, and nng_stream_listener_stop.
They should be called after close, and before free. The close
functions now close without blocking, but the stop function is
allowed to block.
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This was not really used or useful.
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This fixes a problem only found on Windows, that affected both IPC and TCP.
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We use overlapped I/O, so we don't need a separate hEvent.
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This looks like a possible problem that may be windows specific involving
the flow for IO completion ports. This simplifies the logic a little bit,
and should ensure that canceled requests on pipes do not restart.
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fix compile error in nano using clang version 16.0.5
fix issue: https://github.com/nanomsg/nng/issues/1676
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This is a sweeping cleanup of the transport logic around options,
and also harmonizes the names used when setting or getting options.
Additionally, legacy methods are now moved into a separate file and
can be elided via CMake or a preprocessor define.
Fundamentally, the ability to set to transport options via the socket
is deprecated; there are numerous problems with this and my earlier
approaches to deal with this have been somewhat misguided. Further
these approaches will not work with future protocol work that is
planned (were some options need to be negotiated with peers at the
time of connection establishment.)
Documentation has been updated to reflect this. The test suites still
make rather broad use of the older APIs, and will be converted later.
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We also have made some support changes, including new APIs for printing
URLs, and some improvements to the NNG_OPT_URL to make use of this new
property.
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This is a major change, and includes changes to use a polymorphic
stream API for all transports. There have been related bugs fixed
along the way. Additionally the man pages have changed.
The old non-polymorphic APIs are removed now. This is a breaking
change, but the old APIs were never part of any released public API.
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This changes much of the internal API for TCP option handling, and
includes hooks for some of this in various consumers. Note that the
consumers still need to have additional work done to complete them,
which will be part of providing public "raw" TLS and WebSocket APIs.
We would also like to finish addressing the call sites of
nni_tcp_listener_start() that assume the sockaddr is modified --
it would be superior to use the NNG_OPT_LOCADDR option. Thaat will be
addressed in a follow up PR.
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This changes the signature of the aio cancellation routines
to take the argument for cancellation directly, so we do not
need to lookup the argument using the nni_aio_get_prov_data.
We should probably consider eliminating nni_aio_get_prov_data,
and co, and changing the prov_extra to reflect prov_data. Later.
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fixes #596 POSIX IPC should move away from pipedesc/epdesc
fixes #598 TLS and TCP listeners could support NNG_OPT_LOCADDR
fixes #594 Windows IPC should use "new style" win_io code.
fixes #597 macOS could support PEER PID
This large change set cleans up the IPC support on Windows and
POSIX. This has the beneficial impact of significantly reducing
the complexity of the code, reducing locking, increasing
concurrency (multiple dial and accepts can be outstanding now),
reducing context switches (we complete thins synchronously now).
While here we have added some missing option support, and fixed a
few more bugs that we found in the TCP code changes from last week.
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fixes #179 DNS resolution should be done at connect time
fixes #586 Windows IO completion port work could be better
fixes #339 Windows iocp could use synchronous completions
fixes #280 TCP abstraction improvements
This is a rather monstrous set of changes, which refactors TCP, and
the underlying Windows I/O completion path logic, in order to obtain
a cleaner, simpler API, with support for asynchronous DNS lookups performed
on connect rather than initialization time, the ability to have multiple
connects or accepts pending, as well as fewer extraneous function calls.
The Windows code also benefits from greatly reduced context switching,
fewer lock operations performed, and a reduced number of system calls
on the hot code path. (We use automatic event resetting instead of manual.)
Some dead code was removed as well, and a few potential edge case leaks
on failure paths (in the websocket code) were plugged.
Note that all TCP based transports benefit from this work. The IPC code
on Windows still uses the legacy IOCP for now, as does the UDP code (used
for ZeroTier.) We will be converting those soon too.
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