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* sv/stdlib/sys-get-state/OTP-11013:
Removed ?line macro
add sys:get_state/1,2 and sys:replace_state/2,3
update sys:get_status/2,3 documentation for gen_event
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At Erlang Factory 2013 there was discussion during one of the talks about
the sys:get_status functions and how useful they were for debugging. Geoff
Cant mentioned it would be very useful if the sys module also provided
functions to use while debugging to get just the state of a process and
also to be able to replace the state of a process, and many others in the
audience appeared to agree.
The sys:get_state/1,2 functions return the state of a gen_server, gen_fsm,
or gen_event process. The return value varies depending on the process
type: process state for a gen_server, state name and state data for a
gen_fsm, and handler module, handler id, and handler state for each handler
registered in a gen_event process.
The sys:replace_state/2,3 functions allow the state of a gen_server,
gen_fsm, or gen_event process to be replaced with a new state. These
functions take a function argument that updates or replaces the process
state; using a function to change the state eliminates the race condition
of first reading the state via sys:get_state/1 or sys:get_state/2, using
its return value to create a new state, and then replacing the old state
with the new state, since during that time the process might have received
other calls or messages that could have changed its state.
* For a gen_server process, the state replacement function takes the
process state as an argument and returns a new state.
* For a gen_fsm process, the state replacement function gets a tuple of
{StateName, StateData} and returns a similar tuple that specifies a new
state name, new state data, or both.
* For a gen_event process, the state replacement function is called for
each registered event handler. It gets a tuple {Module, Id, HandlerState}
and returns a similar tuple that specifies the same Module and Id values
but may specify a different value for HandlerState.
If the state replacement function crashes or results in an error, the
original state of a gen_server or gen_fsm process is maintained; if such a
crash occurs for a gen_event process, the original state of the event
handler for which the state replacement function was called is maintained,
but the states of other event handlers of the same gen_event process may
still be updated if no errors or crashes occur while replacing their
states.
Add documentation for sys:get_state/1,2 and sys:replace_state/2,3. The
documentation explicitly notes that the functions are intended for use
during debugging.
Add new tests for these functions to gen_server_SUITE, gen_fsm_SUITE, and
gen_event_SUITE.
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Modify the documentation for the sys:get_status/2,3 functions to reflect
that they also work on gen_event processes, and add a cross reference for
gen_event:format_status/2 to go along with the existing cross references
for gen_server and gen_fsm.
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A bug has been fixed: when given the option {encoding,utf8} a list of
floating point numbers (in the correct interval) was mistakenly
returned as a string.
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The scanner did not crash when a floating point number was encountered
in the input string.
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* dgud/testcase_fixes:
Fix timers
mnesia: Decrease test times
Add debug printouts
wx: Fix failing testcases
stdlib: Ignore symlink tests on windows
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The manual says that an Emacs directive can be placed on the second
line. With this patch that directive is also recognized when selecting
encoding of the script.
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shell_SUITE: Calling i() did not work because if there are more than
100 processes c:i() will go into pager mode, asking for input.
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io_proto_SUITE: node names containing some '-' did not work.
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The test case deletes a Dets process while it is repairing a file.
Another client waiting for the Dets process to reply then kicks in and
repairs the file. Apparently the temporary file was still open,
resulting in an eacces error on Windows.
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* mh/supervisor-doc/OTP-10938:
Delete obsolete note about simple-one-for-one supervisor
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* sverk/test-cuddling:
stdlib: Remove race in ets_SUITE:delete_large_tab
stdlib: Remove race in ets_SUITE:delete_large_named_table
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Since commit 47759479146ca11ad81eca0bb3236b265e20601d,
simple-one-for-one supervisors _do_ kill their children explicitly on
shutdown. That commit also removed this note, but it seems like the
merge commit 45b4d5309e0686cc5fa28506de76f75b598bbd95 incorrectly
reinstated it.
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Symlinks only partially works on windows 7, ignore those tests
on windows machines for now
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Also extended it with more examples, summaries and other
stuff.
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The I/O-server group.erl echoed the skipped line.
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* hb/file_name_type/OTP-10852:
Introduce new type file:name_all()
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* pan/unicode_printable_ranges:
Adapt stdlib tests to ~tp detecting latin1 binaries
Update primary bootstrap
Make wx debugger use +pc flag when applicable
Correct misspelled comments and space at lin ends
Make ~tp output latin1 binaries as strings if possible
Leave the +pc handling to io and io_lib_pretty
Remove newly introduced warning in erlexec.c
Make shell_SUITE:otp_10302 use +pc unicode when needed
Fix io_proto_SUITE to handle the new io_lib_pretty:print
Add testcase for +pc and io:printable_range/0
Make printing of UTF-8 in binaries behave like lists.
Document +pc flag and io:printable_range/0
Add usage of and spec for io:printable_range/0
Add +pc {latin1|unicode} switch and io:printable_range/0
Fix some Unicode issues
OTP-18084
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* bjorn/unicode-doc/OTP-10852:
file: Document list_dir_all/1 and read_link_all/1
file: Remove note about Unicode handling being experimental
filelib: Update documentation
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* lukas/stdlib/binary_typespec:
bin_to_list can also take a negative len
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* hb/stdlib/unicode_corrections/OTP-10820:
Use ~ts for filenames
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* lukas/stdlib/binary_typespec:
Updated to fit spec of -type part()
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* sverk/ets-test-failures:
stdlib: Try fix fluctuating test cases in ets_SUITE
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This makes the shell output binaries and list as intended by
the +pc setting.
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pan/unicode_printable_ranges
* hb/stdlib/unicode_corrections/OTP-10820:
Fix some Unicode issues
Conflicts:
lib/stdlib/test/shell_SUITE.erl
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Also fixed otp_10302 to test both on a node with +pc unicode and
a node with +pc latin1.
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This means that only UTF-8 characters in binaries that conform
to the printable_range are printed as <<"..."/utf8>> in io_lib_pretty.
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This makes both io:format("~tp", ...) and
the shell honor the +pc setting and also reverts the shell to
the old behaviour of only interpreting latin1 strings as "strings"
by default. +pc unicode turns on the R16A behaviour. Doing
io:format("~tp~n", [[1024,1025]]).
will show you the difference when starting with +pc unicode.
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Also let the Erlang shell use the new function io:printable_range().
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A short description of how ~tp works now.
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