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Added simple evaluator interface functions, so that it is
simple for evaluators to interact (and unified).
Only two test cases so far...
OTP-14831
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Added two remote close socket closure test cases (for
IPv4 TCP): sc_rc_recv_response_tcp4 and sc_rc_recvmsg_response_tcp4.
OTP-14831
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Easier to read and debug, and about the same lines of code.
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It's possible to first find an empty base node
and then retry and find the same base node as invalid.
It's a benign race with join which first makes the old invalid
'neighbor' accessible from 'gparent' before replacing it with
'new_neighbor'.
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to actually pass the copy to lock checker.
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Once an iteration key has been found, never fall back to first/last key in
next/prev tree as trees may split or join under our feet. I.e we must always
use previous key when searching for the next key.
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to not have to backtrack up on the stack.
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to easier generate a routing tree for test
without having to spend cpu to provoke actual repeated lock conflicts.
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{RouteNodes, BaseNodes, MaxRouteTreeDepth}
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Before this change, it was always the aux thread that was woken
to handle thread progress events scheduled to happen when all
schedulers were going to sleep. This was ok in the pre-OTP-21
implementation when the aux thread just slept on a tse. Now that
it sleeps in the fallback pollset this uses too much cpu so
instead we wake the thread that is doing the request if it is
a managed thread, or else we wake scheduler 1.
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The poll thread does a lot of waking up and then going
back to sleep. A large part of the waking up is managing
thread progress and a large part of that was using thread
specific data to get the thread progress data pointer.
With this refactor the tpd is passed to each of the functions
which greatly decreases the number of ethr_get_tsd calls
which in turn halves the CPU usage of the poller thread in
certain scenarios.
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Add test cases for tcp local socket close for the accept function.
OTP-14831
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Add test cases for udp local socket close for UDP recvfrom and
recvmsg.
OTP-14831
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When calling the recvfrom function when there is no data,
we should be made wait (for the specified amount of time).
But this did not work because the "current reader" structure
was not initiated.
OTP-14831
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Conflicts:
erts/preloaded/ebin/prim_inet.beam
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* raimo/tcp-close-while-send/maint/ERL-561/OTP-12242:
Write test case
Fix hanging gen_tcp send vs close race
Conflicts:
erts/preloaded/ebin/prim_inet.beam
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Brute force solution will always iterate tree from slot 0 and forward.
ToDo1: Yield.
ToDo2: Maybe optimize by caching AVL tree size in each base node.
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DbTableCATree has no static stack.
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Move lookup from analyze_pattern to callers.
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The receive response local close tcp cases was extended
wityh two more handler (readers).
OTP-14831
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While a gen_tcp send was in progress with filled buffers
and slow receiver a close (from another process) would place
the port in a half dead state so the port could not signal
back to send, that waited for confirmation.
The solution is to after some time (5 s) of waiting for
send confirmation set a monitor on the port, which detects
if the port becomes half dead due to close from another process.
The close pending loop has also been improved to use the linger
timeout for waiting, and to set a system timeout (arbitrarily
selected 3 min) to not wait forever when the other end
reads data s l o w l y (tarpitting, kind of).
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Add name to evaluator printouts. Also added timetraps to all test-
cases to shorten the time to wait in case a test case fails.
OTP-14831
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OTP-14831
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When a module has been purged from memory, any literals belonging
to that module will be copied to all processes that hold references
to them.
The max heap size limit would be ignored in the garbage collection
initiated when copying literals to a process. If the max heap size
was exceeded, the process would typically be terminated in the
following garbage collection.
Since the process would be killed anyway later, kill the process
before copying a literal that would make it exceed its max heap
size.
While at it, also fix a potential bug in `erlang:garbage_collect/0`.
If it was found that the max heap sized had been exceeded while
executing `erlang:garbage_collect/0`, the process would enter a
kind of zombie state instead of being properly terminated.
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The level argument for IPv6 can be either SOL_IPV6 or
IPPROTO_IPV6, whichever is defined. But it was hard-
coded to SOL_IPV6, which is not defined on FreeBSD.
OTP-14831
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bmk/20180918/nififying_inet/OTP-14831
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When calling the recvmsg function when there is no data,
we should be wait (for the specified amount of time).
But this not not wotk because the "current reader" structure
was not initiated.
OTP-14831
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* maint:
Updated OTP version
Prepare release
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* maint-20:
Updated OTP version
Prepare release
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Fixed a number of issues regarding monitor handling.
Monitors are now wrapped in its own type (ESockMonitor).
This is hopefully temporary!
The reason for this is that there is no way to "initialize"
a monitor after a demonitor. This could mean that after a
successful demonitor, you could still get a down-callback,
and thenh compare with, for instance, ctrlMOn field and get
a match, even though it was just (successfully) demonitor'ed.
To make debugging easier, the monitor and demonitor calls
are now wrapped in their own functions, with debug printouts
before and in case of failure, also after the actual calls
Also, fixed a number of problems with cancel, where monitors
where left still active after cleaning up current and active
reader, writer and acceptor.
OTP-14831
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* sverker/erts/debug_free_null:
erts: Fix bug in debug_free for NULL pointer
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* john/erts/update-zlib/OTP-15351/ERL-749:
Update zlib to 1.2.11
Allow undefined macros when building zlib
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* maint:
"cork" tcp socket around file:sendfile
Add nopush TCP socket option
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* igor/tcp-nopush-ERL-698/OTP-15357:
"cork" tcp socket around file:sendfile
Add nopush TCP socket option
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Fixed more issues regarding closing sockets. Specifically
with respect to recv calls.
Also, added demonitor for all *current* processes.
Also fixed a buffer overflow problem when writing an
warning message (the timestamp buffer was not large
enough).
OTP-14831
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* sverker/erts/ets-select_replace-bug/OTP-15346:
erts: Fix bug in ets:select_replace for bound key
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john/erts/update-zlib/OTP-15351/ERL-749
* fhunleth/fix-muslc-compiler-error:
Allow undefined macros when building zlib
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