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* lukas/erts/port_SUITE_dropped_commands_fix:
erts: Fix port_SUITE:dropped_commands tc
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We start the port in the started process in order
to get the messages in the correct place and also
so that unloading the port driver does not kill the
test process.
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Also, fix cleaning up the OS environment setting modified by this test
case to prevent problems with later test cases using the echo_drv too.
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* maint-19:
Updated OTP version
Update release notes
Update version numbers
Fix statistics(wall_clock) and statistics(runtime) implementation
fixup! erts: Cleanup dropped port tasks correctly
erts: Add tests to detect port close race
Add a testcase for OTP-13939/ERL-193
erts: Cleanup dropped port tasks correctly
Mark socket disconnected on tcp_send_or_shutdown_error
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c062dfc485a added timetraps to test suites that had no timetraps.
Some of added timetraps are only 5 or 10 seconds, which is can be
too short time on some slow computers. Change those times to one
or two minutes.
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* rickard/time-unit/OTP-13735:
Update test-cases to use new symbolic time units
Replace misspelled symbolic time units
Conflicts:
erts/doc/src/erlang.xml
erts/emulator/test/long_timers_test.erl
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* lukas/erts/spawn_driver_relative_cd/ERL-175/OTP-13733:
erts: Add port_SUITE:cd invalid dir testcase
erts: Fix spawn driver with relative cd option
erts: Fix HARD_DEBUG printouts in erl_child_setup
erts: Improve error printouts in erl_child_setup
Conflicts:
erts/emulator/test/port_SUITE.erl
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for 9f779819f6bda734c595.
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* erlang:monitor/2 with port argument is added, erlang:demonitor, using port task API and avoiding locking;
* port_info and process_info support for monitored ports (with named port monitors support);
* Exit signals contain type 'process' or 'port';
* Propagation of port exit signals;
* Self-cleaning when origin process dies with monitor on;
* 8 test cases + testcase for port driver crashing;
* Documentation for all of the above (monitor, demonitor, port_info and process_info) updated
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It's not just ok to throw badarg, it MUST throw badarg.
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* henrik/update-copyrightyear:
update copyright-year
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Those clause are obsolete and never used by common_test.
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The macro ?t is deprecated. Replace its use with 'test_server'.
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As a first step to removing the test_server application as
as its own separate application, change the inclusion of
test_server.hrl to an inclusion of ct.hrl and remove the
inclusion of test_server_line.hrl.
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* lukas/erts/forker: (28 commits)
erts: Never abort in the forked child
erts: Mend ASSERT makro for erl_child_setup
erts: Allow enomem failures in port_SUITE
erts: iter_port sleep longer on freebsd
erts: Allow one dangling fd if there is a gethost port
erts: Only use forker StackAck on freebsd
erts: It is not possible to exit the forker driver
erts: Add forker StartAck for port start flowcontrol
erts: Fix large open_port arg segfault for win32
erts: Fix memory leak at async open port
kernel: Remove cmd server for unix os:cmd
erts: Add testcase for huge port environment
erts: Move os_pid to port hash to child setup
erts: Handle all EINTR and EAGAIN cases in child setup
erts: Make child_setup work with large environments
erts: Fix forker driver ifdefs for win32
erts: Fix uds socket handling for os x
erts: Fix dereferencing of unaligned integer for sparc
erts: Flatten too long io vectors in uds write
erts: Add fd count test for spawn_driver
...
Conflicts:
erts/emulator/beam/erl_node_tables.c
erts/preloaded/src/erts_internal.erl
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With the new forker implementation also enomem can be returned
as an indicator that it is not possible to create more ports.
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Instead of forking from the beam process, we create a separate
process in which all forks are done. This has several advantages:
1) performance:
* don't have to close all fd's in the world
* fork only has to copy stuff from a small process
* work is done in a completely seperate process
* a 3x performance increase has been measured,
can be made even greater (10x) if we cache the
environment in child setup
2) stability
* the exec is done in another process than beam, which means that
if the file that we exec to is on an nfs that is not available
right now we will not block a scheduler until the nfs returns.
3) simplicity
* don't have to deal with SIGCHLD in the erts
Unfortunately, this solution also implies some badness.
1) There will always be a seperate process running together with
beam on unix. This could be confusing and undesirable.
2) We have to transfer the entire environment to child_setup
for each command.
OTP-13088
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for non-immediate port data >= sizeof(Eterm)*2 words.
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