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* lukas/kernel/os_cmd_fix_stdin_close/OTP-13867:
kernel: Close stdin of commands run in os:cmd
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This is needed when running programs that only exit when
stdin has been closed, e.g. 'more'.
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We don't want the infinite loop as it leaks after the test finished.
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This is needed as doing only an 'exit' will only exit the
program, but any children started in the program that have
stdout/stderr still open will keep the port open until they
terminate. i.e.
os:cmd("while true; do echo sleep 1; sleep 1; done&").
would block os:cmd forever because the while loop keeps its copies
of stdout/stderr open forever.
It could be argued that this is correct behaviour, and it is
the way it works on windows, but changing this breaks backwards
compatability for os:cmd which is not acceptable.
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While we are it, also re-ident the files.
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Those clause are obsolete and never used by common_test.
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?config is ugly and not recommended. Use proplists:get_value/2
instead.
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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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The perf_counter is a very very cheap and high resolution timer
that can be used to timestamp system events. It does not have
monoticity guarantees, but should on most OS's expose a monotonous
time.
A special instruction has been created for this counter to further
speed up fetching it.
OTP-12908
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Since we no longer to vfork in the emulator there is
no need to serialize the os:cmd calls through a central
command server. This greatly decreases the complexity of
this code and should make it fast+more scalable.
OTP-13089
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Allow unicode strings in os:cmd and try to convert the
result bytes to unicode list.
Also test it.
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Conflicts:
lib/kernel/test/os_SUITE.erl
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Because of leeway in implementing os:cmd/1 under different OS there is
a difference in results when calling it with deep list
argument. os:cmd/1 specifies io_lib:chars() type for its argument and
io_lib functions can produce deep lists inspite of io_lib:chars()
result type specification. This commit flattens the argument for
erlang:open_port/2 (which is used under Windows) and expands the
os_SUITE to regress the bug.
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* bjorn/fix-os_find_executable/OTP-8983:
Never allow os:find_executable/1 to return the path of directories
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Also corrected type-info for bifs
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A race condition in os:cmd/1 could cause the caller to get stuck in
os:cmd/1 forever.
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* bg/cleanup-tests:
file_SUITE: eliminate a warning for an unused variable
kernel tests: modernize guard tests
unicode_SUITE: replace deprecated concat_binary/1 with list_to_binary/1
stdlib tests: modernize guard tests
Test suites: fix creation of Emakefiles
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