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* legoscia/erts/epmd-module-option/OTP-13627:
Add tests for -start_epmd and -epmd_module options
Use the -epmd_module flag consistently
Add -start_epmd command line option
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If the -epmd_module flag has been specified on the command line, use
that module to register and look up node names instead of the default,
erl_epmd.
Also document this option.
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This makes the implementation text of inet:gethostbyname/1 identical to
that of inet_res:gethostbyname/1. I also copied over the doc note about
this resolver option.
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* hasse/erl_docgen/datatype_anchors/OTP-13600/ERL-141:
kernel: Remove no longer needed anchors in documentation
stdlib: Remove no longer needed anchors in documentation
erts: Remove no longer needed anchors in documentation
erl_docgen: Add anchors to datatypes without name attribute
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A bad directory in the path would prevent the run-time system
from starting:
$ echo >foobar
$ erl -pa foobar
{"init terminating in do_boot",{load_failed,[supervisor,kernel,gen_server,file_io_server,filename,file,erl_parse,error_logger,code_server,erl_lint,proc_lib,code,application_controller,application_master,gen_event,application,error_handler,lists,heart,gen,file_server,ets,erl_eval]}}
Crash dump is being written to: erl_crash.dump...done
init terminating in do_boot ()
The reason is that when attempting to read each of the BEAM files,
there would be an 'enotdir' error which
erl_prim_load:get_modules/2,3 assumed was a fatal error.
Update erl_prim_load:get_modules/2,3 to ignore any error and try
the next directory in the path.
Reported-by: http://bugs.erlang.org/browse/ERL-142
Reported-by: Michael Truog
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This reverts commit bd64ad8e15d66e48b36dbe3584315dd5cfc8b59a.
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* bjorn/fix-on_load/OTP-12593:
Update documentation regarding improvements
Correctly handle multiple load attempts when on_load is pending
Avoid deadlock when an on_load function makes an external call to the module itself
code_server: Eliminate unnecessary Tag in handle_call/3
Reimplement -on_load()
Refactor erts_finish_loading() and insert_new_code()
code_SUITE: Make on_load_binary/1 clearer by using merl
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If an on_load function had not yet returned, the code server
would only correctly handle calls to code:ensure_loaded/1. That
is, each process that called code:ensured_loaded/1 for the
module in question would be suspended until the on_load function
had returned.
The code server handled calls to code:load_binary/1, code:load_file/1,
and code:load_abs/1 in the same way as for code:ensure_loaded/1.
That means that if call to one those functions attempted to load
*different* code for the module, that code would not get loaded.
Note that code:finish_loading/1 (code:atomic_load/1) will still return
{error,pending_on_load} if there is a pending on_load function for one
of the modules that are about to be loaded. The reason is that
code:finish_loading/1 is meant to either succeed directly, or fail
quickly if there is any problem.
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itself
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For historical reasons, the second argument in handle_call/3 is
{Pid,Tag}. The tag is always 'call' and is never used.
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Load the module as old code; swap old and new code if the
-on_load function succeeds. That way, a failed update attempt
for a module that has an -on_load function will preserve the
previous version of the code.
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* legoscia/dist-shutdown-reasons/PR-1028/OTP-13458:
Error reasons for more distribution errors
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* zandra/optimize-rpc/OTP-13518:
use maps instead of gb_trees to optimize the rpc server
let the spawned processes handle rpc replies
Conflicts:
lib/runtime_tools/test/dbg_SUITE.erl
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* zandra/erl_distribution_SUITE-cuddle:
update monitor_nodes_otp_6481_test-we only guarantee message order
increase timeout since the old one risked flapping test
remove no_msg timeout, since its not needed and cause flapping
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* lukas/erts/tracing/misc_fixes/OTP-13503:
erts: Add test for new procs trace with spawn_link
kernel: Remove seq_trace event order dep in tc
erts: Add tests for set on link tracing
erts: Expand trace tests for refc binaries
erts: Remove erl_tracer with invalid state
erts: Remove some dead code
erts: Fix broken doc link to erl_tracer
Conflicts:
erts/emulator/beam/erl_trace.c
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This decreases the load on the rex server.
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Refactor get_name/1 to facilitate an optimization in the next commit.
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make_path() returns a tuple whose second element is not used by
any of its caller. Eliminate the tuple.
Also avoid calling filename:dirname/1 when we already have the result
stored in a variable, and avoid calling filename:basename/2 on a
complete path when we already have the last part of the pathname
stored in a variable.
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absname/1 is quite expensive, so we should not call if we already
have a normalized absolute path.
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The same filtering of sub directories is done in archive_subdirs/1
and try_archive_subdirs/1. Actually, archive_subdirs/1 does nothing
useful. It can be removed and all_archive_subdirs/1 can be renamed
to archive_subdirs/1.
In try_archive_subdirs/1, we can also replace filename:join/1
with the cheaper filename:append/1, since we know that pathnames
have already been normalized.
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It is faster and easier to use filename:split/1 and filename:join/1
than use four different 'filename' operations. Each call in the
original call first flattens the input list, and then traverse the
entire string to the end. So there are roughly 8 complete traversals.
In comparison, filename:split/1 will traverse the input string
twice (once to flatten, once to split) and filename:join/1 once.
For background on why this optimization is worthwhile, here is the
result of profiling the start-up of the run-time system on my computer
(done before this optimization):
$ $ERL_TOP/bin/erl -profile_boot
.
.
.
filename:join1/4 - 13573 : 13805 us
erlang:finish_loading/1 - 27 : 19963 us
filename:do_flatten/2 - 29337 : 49518 us
erlang:prepare_loading/2 - 49 : 52270 us
Note that filename:do_flatten/2 ends up in second place, almost
as expensive as erlang:prepare_loading/2. Your mileage may vary,
depending on the length of $ERL_TOP and the number of extra
directories added to the path using $ERL_LIBS.
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When using a code archive for an application, it should be possible
to store some directories for the application outside of the archive
file (for example, shared libraries that will not work inside an
archive). Make sure that we test that a directory outside of the
archive file really works.
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Add descriptive shutdown reasons when an incoming distribution
connection is rejected because it is not on the "allowed" list or
because it has an incorrect cookie. These error reasons can be seen
after calling net_kernel:verbose(1).
Distinguishing these failures is valuable, because the log message
printed is otherwise identical.
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Messages can be lost, but the order is guaranteed. This change
weakens the test, but does it according to our guarantees.
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Add the possibility to use modules as trace data receivers. The functions
in the module have to be nifs as otherwise complex trace probes will be
very hard to handle (complex means trace probes for ports for example).
This commit changes the way that the ptab->tracer field works from always
being an immediate, to now be NIL if no tracer is present or else be
the tuple {TracerModule, TracerState} where TracerModule is an atom that
is later used to lookup the appropriate tracer callbacks to call and
TracerState is just passed to the tracer callback. The default process and
port tracers have been rewritten to use the new API.
This commit also changes the order which trace messages are delivered to the
potential tracer process. Any enif_send done in a tracer module may be delayed
indefinitely because of lock order issues. If a message is delayed any other
trace message send from that process is also delayed so that order is preserved
for each traced entity. This means that for some trace events (i.e. send/receive)
the events may come in an unintuitive order (receive before send) to the
trace receiver. Timestamps are taken when the trace message is generated so
trace messages from differented processes may arrive with the timestamp
out of order.
Both the erlang:trace and seq_trace:set_system_tracer accept the new tracer
module tracers and also the backwards compatible arguments.
OTP-10267
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* paulgray/inet_db_fix/PR-949/OTP-13470:
Fix start timestamp instead of time check
Allow to refresh resolver settings on startup
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* siri/otp-19-vsns:
Update version of common_test for OTP-19
Update versions
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* henrik/update-copyrightyear:
update copyright-year
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to let future nodes know that we can handle
NEW_PID_EXT, NEW_PORT_EXT and NEWER_REFERENCE_EXT.
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* bjorn/kernel/rpc-pinfo/ERL-124/OTP-13460:
Update spec for rpc:pinfo/2
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rpc:pinfo/2 is documented as a location-transparent version
of process_info/2. Therefore, it should be expected that
the spec would allow calls with an item list, for example:
rpc:pinfo(Pid, [initial_call,last_calls])
Report-URL: http://bugs.erlang.org/browse/ERL-124
Reported-by: bjfish
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* egil/erts/fix-file_info/OTP-13478:
Don't check dates before 1970
Log additional test information in prim_file_SUITE
Relax file_info tests
Refactor time_t in efile_drv
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Verify with:
erl -noshell -eval 'io:write(inet_res:lookup("localhost",in,a)),io:nl(),init:stop().'
Prints:
[{127,0,0,1}]
Without this correction you will get [] on a hostname that works
later after system start.
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* bjorn/kernel/remove-deprecated/OTP-13449:
rpc: Remove functions deprecated in R12B
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* bjorn/cuddle-with-tests:
inet_SUITE: Handle pointtopoint devices in getifaddrs/1
file_SUITE: Increase timetrap for large_write/1
gen_fsm_SUITE: Make abnormal1/1 stop failing
gen_fsm_SUITE: Use timer:sleep/1 instead of ct:sleep/1
inet_SUITE: Handle {error,enoent} in simple_netns_open
inet_SUITE: Handle missing SCTP support in simple_netns/1
asn1_SUITE: Remove temporary files
file_name_SUITE: Improve handling of missing permission for link creation
file_name_SUITE: Remove useless put/2 to process dictionary
file_name_SUITE: Handle the case that HOMEPATH may not be set
code_SUITE: Skip on_load_embedded/1 if no symlinks
gen_sctp_SUITE: Skip most SCTP test cases on Solaris before 5.12
heart_SUITE: Increase timeout in restart/1
heart_SUITE: Use unique node names
init_SUITE: Quote pathname that may contain a space
gen_tcp_misc_SUITE: Clean up send_timeout{_active}/1
Clean up the determination of the hostname
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